ESTIMATING 2003
BUILDING-RELATED
CONSTRUCTION AND DEMOLITION
MATERIALS AMOUNTS
&EPA
United States
Environmental Protection
Agency
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Table of Contents
Table of Contents i
List of Tables ii
List of Tables ii
List of Figures ii
1 Introduction 1
1.1 The Construction Industry 2
1.1.1 Size of the Construction Industry 2
1.1.2 Efforts by the Construction Industry to Increase C&D Materials Recovery 3
1.2 Estimating Building-Related C&D Materials Generation Amounts 5
1.3 Estimating The Recovered amount of Building-Related C&D Materials 6
2 Amount of Building-Related C&D Materials Generated 8
2.1 Methodology and Results 8
2.1.1 Residential Construction 8
2.1.2 Nonresidential Construction 10
2.1.3 Residential Demolition 10
2.1.4 Nonresidential Demolition 13
2.1.5 Residential Renovation 15
2.1.6 Nonresidential Renovation 16
2.2 Amount of Building-Related C&D Materials Generated in 2003 17
3 Building-Related C&D Materials Management 20
3.1 Source Reduction 20
3.2 Materials Recovery 20
3.2.1 Barriers to C&D Materials Recovery 20
3.2.2 Quantifying Recovery of C&D Materials 21
3.3 Landfill Disposal 23
4 Conclusions 25
References 26
APPENDICES
A Building-Related C&D Materials Generation Amount Calculations
B Sources of C&D Materials Recovery Data
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List of Tables
Table Title Page
1-1 Typical components of C&D Materials 1
2-1 Summary of Residential Construction Job Site C&D Materials Surveys 9
2-2 Summary of Nonresidential Construction Job Site Surveys of C&D Materials 10
2-3 Summary of Residential Demolition Job Site Waste Surveys 12
2-4 Summary of Nonresidential Demolition Job Site Surveys of C&D Materials 14
2-5 Summary of Residential Renovation Job Site Surveys of C&D materials 15
2-6 Summary of Nonresidential Renovation Job Site Surveys of C&D Materials 17
2-7 Estimated Amount of Building-Related C&D Materials Generated in the U.S. During
2003 17
3-1 Amount of C&D materials disposed and recovered by reporting state 23
A-l Residential Construction Materials Worksheet A-2
A-2 Nonresidential Construction Materials Worksheet A-2
A-3 Residential Demolition Materials Worksheet A-3
A-4 Residential Renovation Materials Worksheet A-4
A-5 Nonresidential Renovation Materials Worksheet A-5
A-5 Nonresidential Renovation Materials Worksheet A-5
A-6 Estimated Weight of Residential Concrete Driveways Replaced in the U.S., 2003 A-5
A-7 Estimated Weight of Residential Asphalt Roofs Replaced in the U.S., 2003 A-6
A-8 Estimated Weight of Residential Wood Roofs Replaced in the U.S., 2003 A-6
A-9 Estimated Weight of Residential HVAC Equipment Replaced in the U.S., 2003 A-6
List of Figures
Figure Title Page
1-1 U.S. construction spending 3
1-2 Estimated consumption of portland cement in 2003 5
1-3 C&D Materials Management Definitions 7
2-1 Average Unit Size of New Residential Construction 12
2-2 Contribution to the C&D Materials Stream by Each Building Sector 17
11
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Estimating 2003 Building-Related Construction and Demolition Materials Amounts
1 Introduction
Construction and demolition (C&D) materials are generated when new structures are built and
when existing structures are renovated or demolished (including deconstruction activities).
Structures include all residential and nonresidential buildings, as well as public works projects,
such as streets and highways, bridges, utility plants, piers, and dams. While definitions on what
constitutes C&D materials vary from state to state, C&D materials measured by various parties
can include land clearing debris, the vegetation that is removed when a new site is developed.
Typical components of C&D materials are shown in Table 1-1.
Table 1-1. Typical components of C&D Materials
Material
Components Content Examples
Wood Forming and framing lumber, stumps/trees, engineered wood
Drywall Sheetrock (wallboard)
Metals Pipes, rebar, flashing, wiring, framing
Plastics Vinyl siding, doors, windows, flooring, pipes, packaging
Roofing Asphalt, wood, slate, and tile shingles, roofing felt
Masonry Cinder blocks, brick, masonry cement
Glass Windows, mirrors, lights
Miscellaneous Carpeting, fixtures, insulation, ceramic tile
Cardboard From newly installed items such as appliances and tile
Concrete Foundations, driveways, sidewalks, floors, road surfaces (all
concrete containing portland cement)
Asphalt pavement Sidewalks and road structures made with asphalt binder
The U.S. Environmental Protection Agency (EPA) has targeted C&D materials for reduction,
reuse, and recovery as part of its Resource Conservation Challenge (RCC). The RCC is a
national effort to conserve natural resources and energy by managing materials more efficiently.
The goals of the RCC are to prevent pollution and promote reuse and recycling, reduce priority
and toxic chemicals in products and waste, and conserve energy and materials. The RCC has
identified four national focus areas:
Municipal solid waste recycling
Industrial materials recycling, specifically:
o C&D materials reduction, reuse, and recycling
o Coal combustion products
o Foundry sands
Green Initiatives: Green Building and Electronics
Priority and toxic chemical reductions1
With respect to C&D materials, EPA has undertaken the following activities in an effort to
increase the amount of C&D materials reduced, reused, or recycled:
Conduct outreach and education with industry and public-sector partners; and
Recognize those with successful reuse or recycling programs; and
Participate in green efforts, such as green building programs and green highway
programs.
1 More information about the RCC can be found at www.epa.gov/rcc.
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Furthermore, the recently-issued Executive Order 13423 requires all federal construction,
renovation, and demolition projects to achieve a 50% recycling rate where markets or on-site
recycling opportunities exist. EPA is committed to helping achieve that recycling rate. One of
the important tasks for EPA under the RCC is to track the progress of C&D materials recovery
by estimating the amount that is generated and recovered.
The purpose of this study is to determine the amount of building-related C&D materials
generated and recovered in the U.S. during 2003, updating the findings of the 1998 EPA report
Characterization of Building-Related Construction and Demolition Debris in the United States
(EPA 530-R-98-010). Limited information is available on the amount of C&D materials
generated and managed in the U.S. The methodology used in this report to estimate the amount
of building-related C&D materials generated and recovered in the U.S. during 2003 is based on
national statistical data and typical waste generation during building construction, renovation,
demolition, or maintenance activities. The recovery estimate relies on 2003 data reported by
state environmental agencies.
Finally, we would note that accurate measurements of C&D generation and recovery are critical
in order to measure progress toward achieving increased C&D materials reuse and recycling.
However, efforts to improve C&D measurement are currently hampered by a general lack of
data. Thus, it should be recognized that the C&D materials estimates presented to date,
including those in this report, have some level of uncertainty, and the results should be viewed in
that light. Nevertheless, we believe that the estimates contained in this report reflect and are
based on the best data that are currently available.
1.1 THE CONSTRUCTION INDUSTRY
1.1.1 Size of the Construction Industry
The amount of C&D materials that are generated and subsequently managed in the U.S. is
dependent on the amount of activity that takes place in the entire construction, demolition,
renovation, and maintenance industry. Construction is a vital sector of the economy, directly or
indirectly, providing jobs and income to a large population in the U.S. Americans look to the
construction industry to meet the demands of a growing population and economy. As such,
federal agencies, such as the U.S. Census Bureau (USCB), regularly track the construction
industry as an indicator of the economy. The construction industry is very large, yet dominated
by very small businesses. For example, according to USCB data, there were 710,000
construction establishments in 2002 with 7.2 million employees, with an average employment of
ten employees per establishment. In 2002, 90 percent of construction establishments had fewer
than 20 employees, while only one percent of construction establishments had 100 employees or
more (2005a).
The USCB uses construction spending, new home sales, and housing starts as one set of
indicators of the health of the U.S. economy. The construction industry boomed during the late
1990s and into the early 2000s. Figure 1-1 shows the amount of growth in spending during that
time. EPA published an estimate (in 1998) of the amount of building-related C&D materials
generated in the U.S. during 1996. The estimate presented in the current report is for the amount
of building-related C&D materials generated in the U.S. during 2003. Between these years, the
amount of money spent on construction (for gjj_ structures, including buildings, roads, bridges,
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Estimating 2003 Building-Related Construction and Demolition Materials Amounts
etc.) in the U.S. increased by approximately 50%, from an estimated $620 billion in 1996 to an
estimated $930 billion in 2003. These costs do not have a direct relationship with materials
consumption as they may include inflation, profit, and other costs. They can be used as an
indicator of construction activity, however. The USCB does not break down these amounts by
structure type (building vs. non-building), but does break the amounts down by use category.
Those categories (as described by the USCB) that were assumed to primarily consist of building
construction were aggregated for this report2. The USCB, however, did not break down public
construction by use category until 2002, thus only private building construction spending is
shown in Figure 1-1. Between 1996 and 2003, private building construction spending increased
32%. During that same time, the population of the U.S. only increased 8%.
Figure 1-1. U.S. construction spending.
1400
~o
a
1200 -
£. 1000 -
01
o
ro
800 -
O
o
o
5
Ol
ro
=
600 -
400 -
200 -
ERA'S 1st U.S.
C&D Materials
Estimate
I
ERA'S 2nd U.S.
C&D Materials
Estimate
1993
1994
1995
1996
1997
1998
1999 2000
Year
2001
2002
2003
2004
2005
2006
Source: USCB, 2008
1.1.2 Efforts by the Construction Industry to Increase C&D Materials Recovery
The construction industry is taking large strides to lessen its impact on the environment. In
furtherance of these efforts, the Associated General Contractors of America (AGC;
2 Based on their descriptions, the USCB categories that were assumed to consist mostly of building construction and
used to estimate building construction spending for Figure 1-1 were Residential, Lodging, Office, Commercial,
Health Care, Educational, Religious, Public Safety, and Manufacturing. Categories that were assumed to contain
mostly non-building construction were Amusement and Recreation, Transportation, Communication, Power,
Sewage and Waste Disposal, and Water Supply.
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http://www.age.org) created an Environmental Agenda in 2006, which lists seven goals. Four of
these goals relate most to materials management, which are:
1. Encourage environmental stewardship through education, awareness and outreach.
2. Recognize environmentally responsible construction practices.
3. Identify opportunities to reduce the impact that construction practices have on the
environment, including
o Facilitating members' efforts to recycle or reduce construction and demolition
debris.
o Identifying and maximizing the contractor's role in "green" construction.
4. Identify ways to measure and report environmental trends and performance indicators of
such trends.
Other efforts undertaken by the construction industry include the following:
The Building Materials Reuse Association (BMRA; http://www.buildingreuse.org)
facilitates building deconstruction and the reuse and recycling of recovered building
materials. They produce information on deconstruction techniques and information on
how to make a successful deconstruction or reuse business. They convene annually to
transfer this knowledge among contractors, government representatives, and researchers.
The Construction Materials Recycling Association (CMRA; http://www.cdrecycling.org)
aids their members in the appropriate methods for processing material to ensure
environmental protectiveness, as well as producing a high-value product. They have
developed websites to reach out to any recyclers, users of recycled materials, and
regulators in order to provide a better understanding of C&D materials recycling. They
have developed websites that contain research and practical information for the recycling
of concrete (http://concreterecycling.org), drywall (http://drywallrecycling.org), and
asphalt shingles (http://shinglerecycling.org).
The National Association of Home Builders (NAHB; http://www.nahb.org) issued Green
Home Building Guidelines that contractors can follow to make their homes more
"green," including reducing, reusing, and recycling construction waste. They also put on
an annual Green Building Conference that brings together contractors and researchers to
discuss new "green" construction techniques. The NAHB Research Center also pursued
research in the area of C&D materials recycling, such as using the material on-site.
The National Demolition Association (NDA; http://www.demolitionassociation.com)
actively promotes recycling and reuse of the materials generated during a demolition.
They released a report titled, "Demolition Industry Promotes C&D Recycling," in which
they describe ways that the industry and government can work together to overcome
recycling barriers. The "members of the National Demolition Association are committed
to increasing the recycling and reuse of the material generated" on their job sites. They
state that "recycling is good for the environment, good for the nation's economy, a
positive use of valuable commodity, and good for the country."
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1.2
Estimating 2003 Building-Related Construction and Demolition Materials Amounts
ESTIMATING BUILDING-RELATED C&D MATERIALS GENERATION
AMOUNTS
There are a variety of sources of C&D materials and a variety of reasons to estimate the amount
that is generated from each. C&D materials can be generated as part of normal daily life, or as
part of the debris stream resulting from natural disasters. This report estimates the amount of
materials generated from building projects that occur as a result of normal daily life, not debris
resulting from disasters. C&D materials resulting from rebuilding efforts after a disaster are
included in this estimate, however. In 2008, EPA published Planning for Natural Disaster
Debris,3 which discusses tools for forecasting disaster debris generation amounts.
One of the most common reasons to estimate the amount of C&D materials generated or
recovered is to target materials for materials recovery programs. Diverting C&D materials from
landfills is important because it saves natural resources, decreases greenhouse gas emissions,
reduces the need for landfill space, and saves money.
Concrete is one of the most common materials used in construction. Portland cement is a key
ingredient in concrete (or, more specifically, portland cement concrete). As shown in Figure 1-2,
The Portland Cement Association estimated that buildings consumed only 47% of cement
produced in 2003. Thus, estimating the amount of building-related C&D materials is only
looking at a portion of the C&D materials stream.
Figure 1-2. Estimated consumption of portland cement in 2003.
Non-Construction
3%
Water & Wastewater
Management
8%
Farm Construction
5%
Other Public Works
3%
Utilities
1%
Source: Portland Cement Association, 2006
3 Planning for Natural Disaster Debris (EPA530-K-08-001) can be downloaded at
http ://www. epa. gov/epawaste/conserve/rrr/imr/cdm/debris .htm.
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There are three primary aspects of a building's life cycle that impact the C&D materials stream:
construction, renovation, and demolition/deconstruction. Initial construction requires the most
materials to be purchased, but produces the smallest amount of waste. Per building, a demolition
will generate the largest amount of waste of the three activities as all materials are typically
removed and enter the waste stream. Renovations (including remodeling, replacements, and
additions) are a combination of both construction and demolition, removing old materials and
adding new materials.
The methodology used in this report for estimating the amount of building-related C&D
materials generated used national statistical data and typical waste generation data from
construction, renovation, and demolition sites. National statistical data on the amount of
building construction, renovation, and demolition activity were obtained from the USCB and
other national sources. Some statistical data on construction are no longer collected; where this is
the case, the data used in this report were projected from older data. Typical waste generation
data from construction, renovation, and demolition sites was determined as an average of waste
sampling studies performed at specific job sites as reported in the literature.4 Due to the
variability of construction styles, materials, and sizes, it is unknown if the waste sampling data
available are representative of the entire construction industry across the U.S. Additional waste
characterization studies performed at individual job sites from around the U.S. would increase
confidence in these estimates.
1.3 ESTIMATING THE RECOVERED AMOUNT OF BUILDING-RELATED C&D
MATERIALS
There are four stages involved in the C&D materials management process: generating the
material at a job site, transporting the material to the landfill/processor/user of recycled materials
(if not used on site), processing/incinerating/disposing of the material at a recycling
facility/incinerator/landfill, and, in the case of recycling, using the recycled materials.
Definitions of these terms as used in this document are shown in Figure 1-3. Gauging the
amount of materials that flow through any stage can be performed by surveying those that are
involved in the process. Surveys can be complicated and burdensome to conduct, depending on
the sample size and the response rate. As a result, few entities collect this kind of information.
Recovery of building-related C&D materials for recycling, beneficial use, reuse, or waste-to-
energy in 2003 was estimated using data reported by state environmental agencies. Few states
report the amount of C&D materials recovered, disposed, and/or generated, however. EPA
continues to investigate additional sources of C&D materials data. Additional data on
construction materials recovery would increase the confidence in this estimate.
4 Land clearing materials were excluded from the C&D estimates in this report since the site materials composition
studies used to estimate the amount of materials generated at a typical job site did not include land clearing
materials.
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Estimating 2003 Building-Related Construction and Demolition Materials Amounts
Figure 1-3. C&D Materials Management Definitions
For purposes of this report, the following is a working set of definitions:
C&D materials are debris and other secondary construction of building materials during construction,
renovation, and demolition activities.
Disposal means placing materials in a landfill.
Energy recovery refers to combustion of waste materials to provide energy.
Generation refers to activities during construction, renovation, or demolition that produces debris and other
unused materials.
Recycling includes processing a used material, generally through size reduction, to make it usable as an
ingredient in a new product. Sorting may be a necessary step for recycling if materials are delivered to a
recycler in a mixed load.
Reuse is utilizing a used product or material in a manner that generally retains its original form and identity
with minor refurbishments. Examples include fixtures, lumber, and doors that are refinished for use.
Recovery refers to the reuse and recycling of materials, as well as utilizing materials for energy recovery.
Source reduction refers to activities that prevent C&D materials from being generated.
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2 Amount of Building-Related C&D Materials Generated
Building-related C&D materials can be divided into six categories: residential construction,
residential demolition, residential renovation, nonresidential construction, nonresidential
demolition, and nonresidential renovation. These categories were selected based on the
relationship between available statistical data and waste sampling data. The following sections
describe the data used and the methods for estimating the amount of building-related C&D
materials generated, on a weight basis. Tables A-l through A-5 in Appendix A are worksheets
that provide details of the calculations used to arrive at generation for each component of the
C&D materials stream.
2.1 METHODOLOGY AND RESULTS
The methodology used for this study combines national statistical data on industry activity with
point source waste assessment data (i.e., waste sampling at construction, renovation, and
demolition sites) to estimate the amount of C&D materials produced nationally. In general, the
amount of waste (tons5) generated is the product of the level of activity (usually area, square
feet, ft2) and the typical amount of waste generated for that activity (usually weight per unit area,
pounds per square feet, lb/ft2). Total waste amounts are generally described in terms of weight
rather than volume. This is because the volume of waste materials can change through
compaction or other processing. The weight, however, generally remains constant.
2.1.1 Residential Construction
The amount of waste (tons) generated from the construction of new single and multi-family
homes can be determined by multiplying the total area (ft2) of new residential construction by
the typical amount of waste generated per unit area (lb/ft2), as shown in the equation below. The
total area of new residential construction can be determined by dividing the total amount spent
(U.S. dollars, $) on new residential construction by the average cost of new construction (as
defined by the USCB) per unit area ($/ft2).
f Total Residential Construction ^ f Average Waste Generated Per Area
f Total U.S. Residential "] _ [put - in - Place Value ($/year) J [for Residential Construction (lb/ft2)
^Construction Waste (tons/year)) I Average Cost Per Area of ] 20001bs/ton
^ Re sidentia 1 Constructi on ($/ft2) J
Waste sampling data for new residential construction were identified for 95 projects from eight
sources. The results from these studies are presented in Table 2-1. Generation rates ranged from
2.41 to 11.3 lb/ft2. The variation in types of houses, the specific practices of the builders, and the
lack of uniform standards for the collection and storage of the sampled materials may explain the
differences in the estimates. In addition, these estimates, which are in some places based on
1990s data, may change with time, reflecting changes in material usage and practices. Results
from each source were used to develop a weighted average estimate of the overall residential
construction waste generation rate of 4.39 lb/ft2. While this category contains the largest number
of job site C&D materials surveys, it is important to note that it may still not be representative of
5 The use of "tons" throughout this document refers to U.S. short tons.
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Estimating 2003 Building-Related Construction and Demolition Materials Amounts
all residential construction styles across the nation. House sizes, materials, and foundation types
vary regionally and can affect the amount of waste produced during construction.
Table 2-1. Summary of Residential Construction Job Site C&D Materials Surveys.
Date Research Group (1)
1992 NAHB
1994 NAHB
1994 NAHB
1995 NAHB
1993 METRO
1994 METRO
1994 METRO
<1994 METRO (2)
1996-97 Woodbin 2 (3)
1996-97 Woodbin 2
1996-97 Woodbin 2
1996-97 Woodbin 2
1996-97 Woodbin 2
Type of data
Single family
Single family
Single family
Single family
Totals
Single family
Single family
Single family
Totals
Location
Portland, OR
Grand Rapids, MI
Largo, MD
Ann Arundel Cty, MD
Portland, OR
Portland, OR
Portland, OR
No.
of
Units
1
1
1
1
Building
Size
(Sq ft)
3,000
2,600
2,200
2,450
Total Generation
Waste
(Pounds)
13,684
12,182
10,210
9,436
rate
(Lb/sq ft)
4.56
4.69
4.64
3.85
Average
Generation
(Lb/sq ft)
10,250 45,512
Single family Portland, OR
37
2,800
1,290
1,290
13,800
8,600
10,600
5,380 33,000
2,080 7,720
Single family
Single family
Single family
Single family
Single family
North Carolina
North Carolina
North Carolina
North Carolina
North Carolina
1993
1998
1996
1993
Total
Me Henry County (4)
Cornell University
University of Florida
NAHB
Me Henry County (4)
Single family McHenry Co. IL
Single family Highland Mills, NY
Single family Alachua County
Multi-family (5) Odenton, MD
Multi-family (6) McHenry Co. IL
1
1
1
1
1
1
1
2
3,250
3,250
3,250
3,250
3,250
16,250
2,000
1,890
1,750
19,382
36,722
25,296
28,805
23,122
133,326
14,880
4,556
8,860
36 50,400 204,000
6 9,000 33,580
59,400 237,580
95 173,880 763,354
4.93
6.67
8.22
3.71
5.96
11.30
7.78
8.86
7.11
7.44
2.41
5.06
4.05
3.73
4.44
6.13
3.71
8.20
7.44
2.41
5.06
4.00
4.39
AMOUNT GENERATED: 2003
Valuel of new private and public housing & redevelopment construction put in place (7)
Average cost of construction (8)
Total square feet of new construction
Average C&D debris generation rate based on total for 293 units.
Total Estimated Generation of Residential Construction Debris
$352,652 million
$76.80 per square foot
4,592 million square feet
4.39 pounds per square foot
10 million tons
(1) NAHB (National Association of Home Builders); METRO (Portland Oregon); Woodbin 2 (a non-profit in Cary, NC);
University of Florida (Center for Solid and Hazardous Waste Management)
CRHBA (Calgary Region Home Builders Association); CANMET (Canda Center for Mineral and Energy Technology)
(2) Average of 37 residential construction sites. Metro Report, 1994.
(3) Wake County SWM & NC Div of Pollution Prevention. Coordinated by Woodbin 2, a non-profit organization.
Five sites were between 3000 and 3 500 square feet each.
(4) Audit by McHenry County, assisted by Cornerstone Material Recovery.
(5) 36 unit condominium, average 1400 square feet.
(6) 6 unit apartment building.
(7) Department of Commerce, Current Construction Report C-30.
(8) Appendix Table A-1
The USCB collected national statistical data on the amount of residential construction activity in
the U.S. during 2003, including the number of construction permits and the total square feet of
new construction. According to the USCB's "Current Construction Reports (C-30)," in 2003 the
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value of new residential construction put-in-place6 totaled $353 billion. Average construction
cost per area ($76.80/ft2) was found by dividing the total value, in areas where permits are
required, ($282 billion) by the total area of floor space (3,627 million ft2), both obtained from the
U.S. 2004 Statistical Abstract, which reports 2003 data. The quotient of this factor and the total
value of construction produce a total of 4,592 million ft2 of new residential construction in 2003.
The product of the total area and the average waste generated per unit area, 4.39 lb/ft2, results in
the total estimated C&D generation amount for residential construction of 10 million tons in
2003.
2.1.2 Nonresidential Construction
The methodology for estimating the total amount of C&D generation for nonresidential
construction materials is similar to that for residential construction materials, although the design
of nonresidential buildings is more varied than residential buildings. Nonresidential buildings
include lodging, office, commercial, health care, educational, religious, public safety, and
manufacturing facilities. There are fewer material assessments for nonresidential buildings,
making the average generation rates for C&D materials more uncertain. Table 2-2 shows the
results of 12 nonresidential job site waste surveys. The buildings in these surveys include a retail
store, restaurant, institutional building, seven office buildings, and two public facilities. Ranging
from 1.61 to 8.59 lb/ft2, the weighted average material generation rate from these studies is 4.34
lb/ft2.
The 2003 value of new nonresidential building construction put-in-place, as reported in the
Current Construction Reports, is almost $257 billion.7 Average construction costs in 2003 were
$11 I/ft2, resulting in an estimated 2,310 million ft2 of new construction. The product of the total
area (in ft2) of new construction and the average waste generation rate, 4.34 lb/ft2, results in a
C&D materials generation estimate of 5.01 million tons for nonresidential construction in 2003.
Appendix Table A-2 contains a detailed methodology.
2.1.3 Residential Demolition
When buildings are demolished, large quantities of materials are generated. The entire weight of
a building, including the concrete foundations, driveways, patios, etc., may be generated as C&D
materials when a building is demolished. On a per building basis, demolition waste quantities are
often 20 to 30 times as much as C&D materials generated during construction.
Table 2-2. Summary of Nonresidential Construction Job Site Surveys of C&D Materials.
6 According to the USCB (2008): "The 'value of construction put in place' is a measure of the value of construction
installed or erected at the site during a given period. For an individual project, this includes cost of materials
installed or erected, cost of labor (both by contractors and force account) and a proportionate share of the cost of
construction equipment rental, contractor's profit, cost of architectural and engineering work, miscellaneous
overhead and office costs chargeable to the project on the owner's books, interest and taxes paid during
construction (except for state and locally owned projects). The total value-in-place for a given period is the sum of
the value of work done on all projects underway during this period, regardless of when work on each individual
project was started or when payment was made to the contractors. For some categories, published estimates
represent payments made during a period rather than the value of work actually done during that period. For other
categories, estimates are derived by distributing the total construction cost of the project by means of historic
construction progress patterns."
7 As noted before, the categories used for nonresidential building construction from the Current Construction
Reports were lodging, office, commercial, health care, educational, religious, public safety, and manufacturing.
10
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Estimating 2003 Building-Related Construction and Demolition Materials Amounts
Date Research Group
1995 est. Turner Construction
1995 est. METRO
1992 METRO
1994 METRO
1996-1999 EPA
1997 Sellen Construction
2000-2002 WasteCap Wisconsin, Inc.
2002-2003 WasteCap Wisconsin, Inc.
2002 WasteCap Wisconsin, Inc.
2001-2003 WasteCap Wisconsin, Inc.
2003-2004 WasteCap Wisconsin, Inc.
Type of data Location
Retail Store Seattle, WA
County Justice Center Portland, OR
Restaurant
Office construction (1)
Office construction
Office construction
Corporate headquarters
Office
Office
Nature Center
Urban Ecology Center
Portland, OR
Building
Size
Sq ft
37,000
41,850
5,000
Milwaukee, WI
Milwaukee, WI
34,000
17,000
Total C&D Generation
Debris rate
Pounds Lb/sq ft
143,000 3.86
176,000
10,940
Portland, OR
New York, NY
Seattle, WA
Madison, WI
Milwaukee, WI
Madison, WI
7,452
1,600,000
297,115
325,000
75,000
52,000
12,000
6,574,000
1,141,780
1,552,000
616,000
180,000
292,000
118,000
4.21
2.19
1.61
4.11
3.84
4.78
8.21
3.46
8.59
6.94
Totals
Average
EXTRAPOLATION
2003
Value of new private and public construction put in place (2)
Average cost of construction (3)
Total square feet of new construction
Average C&D debris generation rate
Total Estimated Generation of Nonresidential Construction Debris
2,491,417 10,815,720
$256,501 million dollars
$11 1.00 per square foot
2,310 million square feet
4.34 pounds per square foot
5.01 million tons
4.34
(1) Two office buildings.
(2) Department of Commerce Current Construction Report C-30; lodging, office, commercial, health care, educational,
religious, public safety, and manufacturing categories.
(3) Appendix Table A-2
The quantity of demolition material can be estimated by multiplying the number of residential
demolitions per year by the average demolished area. This total is then multiplied by the typical
waste generated per square foot, determined from an average of job site characterizations of
C&D materials. The number of demolitions per year is estimated from "Components of
Inventory Change (CINCH)" data (HUD 2007). This information is reported in two year
intervals; therefore, the number of single family and multifamily units lost to demolition8 for the
period 2003-20059 was divided in half to determine the residential units demolished per year.
This number was then added to the number of single family and multifamily units that are lost
due to damage or are condemned (again divided in half) and then multiplied by 50%. The 50%
estimate represents the number of units that have been condemned or lost to damage that will
actually be demolished that year. While no data exist to support this estimate, experts at the U.S.
Department of Housing and Urban Development found this to be an acceptable approximation.
The units destroyed through intentional demolitions or disasters, such as fires or weather-related
incidents between 2003 and 2005 averaged 270,000 per year.
8 The units that are lost to damage or are condemned do not reenter the housing stock unless they are repaired.
These units are not accounted for in "units lost to demolition."
9 While the year span is 2003 to 2005, the data represents the change in the amount of housing stock available in
2003 to the amount of housing stock at the same time in 2005 (a two-year span).
11
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Houses of all ages and sizes are demolished, but on average, older houses are demolished more
frequently and are smaller than new houses. New single-family housing units and multi-family
housing units (including apartments and condominiums) built in 2003 had average areas of 2,330
ft2 and 1,170 ft2, respectively. Figure 2-1 shows how average new house sizes have increased
over the last 28 years. Multi-family houses have remained nearly the same, while new single-
family houses grew from 1,600 ft2 to 2,330 ft2 in 1975. Although homes demolished in 2003
may have been built before 1975, it was assumed that this area was representative of most
demolished homes. Thus, the average single-family and multi-family houses are assumed to be
that of 1975 (1,600 ft2 and 1,000 ft2), respectively, when demolished.
Figure 2-1. Average Unit Size of New Residential Construction
2,500 T
2,000 --
500 --
-- Single family
-0-Multi-family
A Weighted Average
1975 1977 1979 1981 1983 1985 1987 1989 1991 1993 1995 1997 1999 2001 2003
Year
Source: USCB 2005b
Table 2-3 shows four single-family house demolition assessments and one multi-family
deconstruction assessment.10 The weight of houses when demolished depends critically on
whether the houses have concrete foundations and basement walls. The use of masonry in
exterior cladding also affects the house weight significantly. None of the single-family houses in
Table 2-3 had full basements. Therefore, adjustments were made to the sampling data to develop
an estimate of residential demolition materials, which reflects the likely impact of some of the
demolished houses having basements. These adjustments are more fully shown in Table A-3 in
Appendix A.
Table 2-3. Summary of Residential Demolition Job Site Waste Surveys
10 Deconstruction refers to the systematic dismantling of a building in an attempt to recover as much material as
possible. Demolition refers to the removal of the building through mechanical means in an attempt to remove the
building as quickly and inexpensively as possible. While both methods may recover materials, the main goal of
deconstruction is to recover as much material as possible. Thus, while the different methods may lead to different
recovery rates, they will both have the same generation amounts and can be used for comparison in the generation
estimate presented here.
12
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Estimating 2003 Building-Related Construction and Demolition Materials Amounts
Date Research Group (1) Type of data
1992 METRO SF Demolition (2)
1994 METRO SF Demolition (3)
1994 METRO SF Demolition (4)
1999 University of Florida SF Demolition (5)
Total Single-family, without foundations
Building C&D Generation
Location
Portland, OR
Portland, OR
Portland, OR
Gainesville, FL
Size
Square
feet
1,280
1,200
750
1,476
Debris
Pounds
66,000
63,000
31,000
77,195
rate
Lb/sqft
52
53
41
52
4,706 237,195
50
1997
NAHB
MF Demolition (4 unit) Maryland
2,000 254,400
127
(1) METRO (Portland); University of Florida (Center for Construction and Environment); NAHB
(National Association of Home Builders)
(2) 1920s house with partial basement.
(3) Concrete rubble not included.
(4) Small house without basement.
(5) Average of six single family wood-framed homes.
The USCB provides data on the types of foundations in existing houses in the Statistical
Abstract of the United States: 2004. Forty-three percent of single-family houses have basements,
29% are on concrete slabs, and all other single-family homes have crawl spaces. The amount of
concrete can range from zero for houses without basements, garages, or driveways to more than
150 Ib/ft2 for those homes with all of these structures (calculation described in Table A-3 in
Appendix A). Based on these estimates, the total amount of residential demolition materials
generated in 2003 was estimated to be 19 million tons.
2.1.4 Nonresidential Demolition
The initial estimate of nonresidential demolition materials generation, for 1996, used the number
of demolitions per year, the average size (ft2) of buildings being demolished, and the typical
materials generated per unit area. Prior to 1995, the number of demolition permits could serve as
a source for estimating the number of demolitions per year. The Census Bureau, the source for
demolition permits, discontinued demolition permit data collection after 1995 and an alternative
methodology was developed for this study. For the 2003 estimate, the 1996 estimate of total
area was extrapolated to 2002 using the value of demolition work published in the Economic
Census by the USCB. Since the Economic Census is only published every five years and similar
economic data were not available to predict an estimate for 2003, the nonresidential demolition
materials estimate was held constant for 2003. This total area (ft2) was then multiplied by the
typical materials generation per unit area (Ib/ft2), taken from an average of several job site waste
surveys.
The typical materials generation per unit area (Ib/ft2) was developed from material assessments.
Table 2-4 shows the results of waste assessments at 27 nonresidential buildings. The assessments
conducted after 1996 were added to the assessments used in the 1996 estimate. These additional
assessments increased the generation factor from 155 Ib/ft2 to 158 Ib/ft2. It should be noted,
however, that the lack of material assessments increases the uncertainty of this average
generation rate of C&D materials. As shown in Table 2-4, the generation rates produced at these
13
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sites vary widely, from 36 to 358 pounds per square foot. As one might expect, nonresidential
buildings vary greatly in size and materials used. Additional waste assessments would reduce
the uncertainty of the estimated generation amount of nonresidential demolition debris.
Table 2-4. Summary of Nonresidential Demolition Job Site Surveys of C&D Materials.
Building Size Total Waste Generation
Date
Research Group (1) Type of building
Location
1991
1994-1995
1992
1994
1997
1997
1995-1996
1997
1997
1998
2003
NAHB
METRO
METRO
METRO
Argonne
Washington County
R.W. Rhine
EPA
WSDGA
University of Florida
Fort Campbell
Prison shop
Warehouse
Department store
Institutional building
Office building
Cold storage building
17 Industrial buildings
Commercial buildings
Warehouse
Concrete block frame
Army buildings
Oakalla, BC
Portland, OR
Portland, OR
Portland, OR
Chicago, IL
Washington Co., OR
northwestern U.S.
Salem, OR
Seattle, WA
Alachua County, FL
Fort Campbell, KY
(Sq ft)
12,000
86,400
44,000
60,000
5700
73,600
2,204,000
178,780
230,000
22,000
21,700
(Tons)
1,301
1,566
3,639
5,454
289
13,163
167,200
16,649
20,191
1,904
683
rate
Lb/sq ft
217
36
165
182
101
358
152
186
176
173
63
Totals
2,938,180 232,039
COMPARISON
AGC 2004 survey of 15 demolition projects (2)
EXTRAPOLATION
1996 Total nonresidential demolition debris
Published report total recalculated using generation rate of 158 pounds/sq ft shown above (3)
1997 Net value of construction work in NAICS 2359400 Wrecking & demolition contractors
1997 Net value of construction work in NAICS 2359400 Wrecking & demolition contractors
2002 Net value of construction work in NAICS 2359400 Wrecking & demolition contractors
Total nonresidential demolition debris 2002 (1996 estimate factored for growth) (4)
Total nonresidential demolition debris 2003 (5)
158
158
46,000,200 tons per year
$1,914 millions of 1997 dollars
$1,990 millions of 2002 dollars
$2,795 millions of 2002 dollars
64,612,000 tons per year
64,612,000 tons per year
(1)
(2)
(3)
(4)
NAHB (National Association of Home Builders); METRO (Portland, OR); Argonne (Argonne National Laboratory);
EPA (Waste Reduction Record Setters); WSDGA (Washington State Department of General Administration);
University of Florida (Center for Solid and Hazardous Waste Managment); Fort Campbell Pilot Deconstruction Project
Associated General Contractors (AGC) surveyed their membership in 2004. The generation rate shown above for demolition projects
was developed independent of this study and is based on 15 confidential responses that reported sufficient data to AGC.
Characterization of Building-Related Construction and Demolition Debris in the United States. U.S. EPA. June 1998. 1996 original published
factor of 155 pounds per sq ft and an estimated of 45,100,000 tons per year of nonresidential demolition debris.
Economic growth (measured by net value) in the wrecking & demolition industry was assumed to impact demolition debris generation.
Step 1. Inflation factor to adjust 1997 dollars to 2002 dollars
Step 2. Express 1997 dollars as 2002 dollars
Step 3. Calculate industry growth from net value of construction
1.
Producer Price Index for
construction materials
used in the construction of
nonresidential buildings
1997 130.5
2002 135.8
Inflation adjustment
factor
1.04
2.
1997 Net value of constuction work in
NAICS 2359400; 1997 dollars adjusted for
inflation.
($1,914 x 1.04)
$1,990
3.
Growth rate
between 1997
and 2002
NAICS
2359400
1.40
(5) Total nonresidential demolition debris for 2003 was assumed at the 2002 level (2003 economic data were not available)
The 1996 estimate of nonresidential demolitions was used as the basis for the 2002 estimates.
The first step was to apply the new generation factor to the original 1996 data. The number of
demolition projects estimated in 1996 (43,795 projects) is multiplied by the average building
floor area (13,300 ft2)11 and the new generation factor of 158 lb/ft2. The adjusted 1996 baseline,
11 1996 Statistical Abstract, Table 1206 from U.S. Energy Information Administration, "Commercial Building
Characteristics, 1992"
14
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Estimating 2003 Building-Related Construction and Demolition Materials Amounts
shown in Table 2-4, is 46 million tons (an increase of approximately one million tons over the
original published estimate).
The second step takes the net value of construction work in the category for wrecking and
demolition contractors for 1997 and 2002 from the Economic Census. After adjusting for
inflation, the growth rate was calculated from 1997 to 2002. This assumes that economic growth
(measured by net value) in the wrecking & demolition industry is directly related to demolition
materials generation. The growth rate of 1.4 in net value of construction work for wrecking and
demolition contractors from 1997 to 2002 predicts nonresidential demolition materials to be 65
million tons in 2002 (Table 2-4). Since no data source exists for 2003, it is assumed that 65
million tons of nonresidential demolition materials were generated in 2003.
2.1.5 Residential Renovation
Renovation includes improvements and repairs to existing buildings, including driveways.
Renovation materials consist of both construction and demolition materials as old materials are
removed and new materials are added. The renovation waste stream can be fairly homogenous,
such as when driveways or asphalt roofs are replaced, or heterogeneous, such as when buildings
are modified or enlarged.
Because of the wide variation in renovation projects, waste assessments should be separated by
renovation type to determine generation per square foot. Table 2-5 shows the results of five
waste assessments that have been made at residential sites, illustrating a wide variation in
generation rates on a square foot basis. Renovating kitchens, bathrooms, and entire houses
typically generates more waste per square foot than new construction, largely because of the
demolition that accompanies remodeling. However, some renovation activities, like roof
replacement, produce relatively low amounts of material on a square foot basis.
Table 2-5. Summary of Residential Renovation Job Site Surveys of C&D materials
Date
1997
1997
1993
1993-94
1997
Research
Group (1)
NAHB
NAHB
METRO
METRO
NAHB
Type of data
SF Remodel (Kit & rm add.)
SF Remodel (bathroom)
Totals
Kitchen remodel
House remodel
Totals
SF Remodel (New roof)
Location
Maryland
Chapel Hill, NC
Portland, OR
Portland, OR
Maryland
Size of
Project
Sqft
560
40
600
150
1,330
1,480
1,400
C&D
Debris
Pounds
10,713
2,883
13,596
9,600
26,000
35,600
4,640
Generation
rate
Lb/sq ft
19.13
72.10
64.00
19.55
3.31
Average
generation
Lb/sq ft
22.66
24.05
3.31
(1) NAHB (National Association of Home Builders); METRO (Portland)
Renovation materials generation were estimated for this analysis by determining the number of
major home improvements (from the USCB Statistical Abstract and home improvement studies),
and then estimating the amount of material produced by each type of improvement. Since minor
improvement projects cannot be included in a study of this type, a selection of the major projects
a residence can go through can be useful for making first estimates.
15
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Appendix A Tables A-6, A-7, A-8, and A-9 show some of the assumptions made and the results
of estimating the amount of material produced when driveways are replaced, when asphalt and
wood roofs from residences having one to four units per structure are replaced, and when
residential heating and cooling equipment is replaced. Based on the assumptions, driveway
replacement generated 20 million tons of concrete. Asphalt roof replacement produced 7 million
tons of largely asphalt shingle waste and wood roof replacement produced 2 million tons of
largely wood waste. The replacement of heating, ventilating, and air conditioning (HVAC)
equipment produced 2.1 million tons of materials. Remodeling kitchens, bathrooms, and other
home interiors generated approximately 6.7 million tons. On this basis, the total residential
renovation generation, from the improvement or replacement projects itemized above, was
estimated to be 37.8 million tons in 2003.
2.1.6 Nonresidential Renovation
No information was found on the total amount of money spent on nonresidential renovation in
2003. The USCB last estimated that the total dollars spent for nonresidential renovation projects
in 1992 was $155 billion. This report assumed the ratio of residential to nonresidential dollars is
the same in 2003 as in 1992. Therefore, the total amount of money spent on nonresidential
renovation was calculated using the amount spent on residential renovation and the ratio of
residential to nonresidential renovation in 1992.
Very few material assessments are available for nonresidential renovation. Additionally, the
materials assessments available do not have any consistency. Therefore, a methodology similar
to the one used for residential renovation cannot be used to estimate the materials generated
during nonresidential renovations. In the absence of adequate materials assessment data, total
dollars spent on nonresidential and residential renovation were compared. It was assumed that
the amount of materials generated is proportional to the dollars spent in these two sectors. (See
Table A-5 for more details of this analysis.)
Based on the assumption that materials generation per dollar is equal to the residential rate, total
nonresidential renovation materials generated was estimated to be 29 million tons in 2003. Table
2-6 shows nine assessments that have been made at nonresidential renovation sites; these data
show a wide variation in generation rates on a square foot basis. Since this estimate is based on
relatively old data and few material assessments, this estimate of nonresidential renovation
generation amounts has a high level of uncertainty.
16
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Estimating 2003 Building-Related Construction and Demolition Materials Amounts
Table 2-6. Summary of Nonresidential Renovation Job Site Surveys of C&D Materials.
Generation
Date Research Group (1) Type of data Location Building Size C&D Debris rate
Sqft
Pounds Pounds/sq ft
1997
1997
1994-96
1998
1997
1993
Natural Resources Canada
METRO, Portland
Sellen Construction
Sellen Construction
EPA
EPA
Sellen Construction
METRO
METRO
Office Renovation
Office Renovation
Office Renovation
Office Renovation
Office Renovation
Office Renovation
Total Office Renovation
Hospital Renovation
Hospital Renovation
Department Store
Total Other Renovation
Ottawa, Ontario
Portland, OR
Seattle, WA
Seattle, WA
San Diego, CA
Austin, TX
Seattle, WA
Portland, OR
Portland, OR
9,000
6,000
72,000
180,000
73,000
15,500
355,500
24,000
10,560
198,500
233,060
48,069
18,000
2,051,520
1,232,600
732,000
110,000
4,192,189
495,100
50,400
1,980,000
2,525,500
5.34
3.00
28.49
6.85
10.03
7.10
11.79
20.63
4.77
9.97
10.84
(1)
Sellen Construction Co., Redmond, Washington; METRO (Portland, OR); EPA (Waste Reduction Record Setters)
2.2 AMOUNT OF BUILDING-RELATED C&D MATERIALS GENERATED IN 2003
Table 2-7 summarizes the estimates for C&D materials generation from the construction,
demolition, and renovation of residential and nonresidential buildings in the United States in
2003. The estimated total is almost 170 million tons, with 39% coming from residential and 61%
from nonresidential sources. Figure 2-2 provides a breakdown, in percent of total, of the six
building sectors that generate C&D materials. The largest sector is nonresidential demolition at
39%. Residential and nonresidential renovation materials make up 22% and 19%, respectively,
followed by residential demolition at 11%. New construction represents 9% of total C&D
materials, with residential construction at 6% and nonresidential construction at 3%.
Table 2-7. Estimated Amount of Building-Related C&D Materials Generated in the U.S.
During 2003.
Residential Nonresidential
Source
Totals
Construction
Renovation
Demolition
Totals
Percent
Million tons
10
38
19
67
39%
Percent
15%
57%
28%
100%
Million tons
5
33
65
103
61%
Percent
5%
32%
63%
100%
Million tons
15
71
84
170
100%
Percent
9%
42%
49%
100%
*C&D managed on-site should, in theory, be deducted from generation. Quantities managed on-site are
unknown.
Note: Data are rounded to the appropriate significant digits. Data may not add to totals shown.
Figure 2-2. Contribution to the C&D Materials Stream by Each Building Sector
17
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Residential
Renovation
Nonresidential
Demolition
39%
Nonresidential
Renovation
19%
Residential
Demolition
11%
Nonresidential
Construction
3%
Residential
Construction
6%
The 2003 estimate of 170 million tons is equal to 3.2 pounds of building-related C&D materials
generated per capita per day (pcd). In 1996, this per capita rate was estimated to be 2.8 pcd.
When comparing the 2003 C&D materials generation rate of 3.2 pcd to the municipal solid waste
(MSW) generation rate of 4.45 pcd (EPA 2005), it is noteworthy that amount of C&D materials
generated per person is less than the amount of MSW generated per person. While not every
person generates C&D materials personally, population growth increases the need for buildings
and infrastructure to support that growth.
The amount of C&D materials generated varies considerably from one community to another.
This variation is created, in part, by the difference in construction styles, historical and current
growth of the community, and local economics. In fast growing areas, the C&D waste stream
from buildings consists primarily of construction materials, with much smaller quantities of
demolition materials. Demolition materials are produced when older buildings are demolished to
make way for the new developments. By contrast, in many urban areas demolition materials
dominate the C&D stream. As definitions of "C&D materials," "generation," "recycling,"
"disposal," and "recovery facility" (or other similar terms) vary among states, adjustments may
be required when comparing the results of this report with data reported by specific state
agencies to ensure the same materials and sources are included in the comparison12. Similar
12 A first example of differing definitions among states involves the definition of "generation." State A may report a
"generated" amount as a sum of the amount disposed and recovered at C&D materials facilities within the state
borders, regardless of what state in which the C&D materials were generated. On the contrary, State B determines
18
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Estimating 2003 Building-Related Construction and Demolition Materials Amounts
adjustments may also be required when comparing data from any two states. The components
that make up C&D materials also vary a great deal depending on the type of construction and the
methods used by the construction industry.
the amounts of C&D materials imported to and exported from their state and accounts for addition/subtraction (as
appropriate) in their amount "generated." A second example involves the types of facilities that the state collects
from. State C does not require facilities that process only concrete or asphalt pavement to report annual amounts
that they recover. On the contrary, State D does require these facilities to report their amounts to the state and their
amounts are included in the overall State D C&D materials recovery amounts. A third example involves incentives
for using different definitions. State E levies a fee associated with various types of waste. If C&D materials have a
lower fee than other materials, generators are incentivized to classify their waste as C&D materials rather than
another waste, even though it might not fall within the classical definition that may be used outside of State E.
These three examples are just some of the reasons why definitions play such an important role in measuring C&D
materials amounts.
19
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3 Building-Related C&D Materials Management
EPA's 1989 Agenda for Action endorsed an Integrated Waste Management Strategy to address
the growing amount of municipal solid waste, including C&D materials generated. This strategy
refers to "the complementary use of a variety of waste management practices to safely and
effectively handle the municipal solid waste stream with the least adverse impact on human
health and the environment." The components of the Strategy are: source reduction (or waste
prevention), recycling, including off-site (or community) composting, combustion with energy
recovery, disposal through landfilling and combustion without energy recovery. Components of
C&D materials can be and are managed in each of these ways. Different measurement
methodologies were used for each type of management method. Because many C&D processing
facilities send materials to be beneficially used in a variety of markets, the term "recovery" is
used here to represent the reuse, recycling, and combustion with energy recovery of C&D
materials.
3.1 SOURCE REDUCTION
Currently, there are no known estimates of sources reduced on-site through improved methods
and materials. Efforts including purchasing optimization during construction to avoid surplus
materials and reusing existing shell and structure during renovation can reduce the amount of
materials that need to be removed from the site and managed. The amount of used materials
avoided through these efforts had not been documented, but any efforts to document these trends
may be considered for use in future C&D materials estimations.
3.2 MATERIALS RECOVERY
C&D materials recovery includes efforts to reuse, recycle, or otherwise beneficially use C&D
materials in various applications, including use in energy recovery applications. There are many
drivers for C&D materials recovery. Historically, economics has been the primary driver for
recovery. In locations where disposal fees were high, recovery became an economically
preferable option. Materials that have traditionally retained a high value when recovered, such
as metals, were recovered even in areas that had low disposal fees. These economic drivers
remain in place today, but an additional factor is affecting the economics of recycling today that
did not exist in the past: green building programs. Specifically, green building rating systems
typically give credits for the reuse or recycling of C&D materials. Since the creation of the U.S.
Green Building Council in 1993 and the spike of green buildings in 2000, demand for reuse or
recycling opportunities has increased in areas where such opportunities had not existed. More
information on green building can be found at www.epa.gov/greenbuilding.
3.2.1 Barriers to C&D Materials Recovery
Barriers to materials recovery still exist, however. Many buildings and building materials are
not designed to be reused or recycled. EPA's Lifecycle Building Challenge is a design
competition that challenges professionals and students to design building materials and
assemblies for reuse and recycling. More formation can be found at www.lifecyclebuilding.org.
If C&D materials will be generated at construction sites, C&D materials management should be
included in the construction plan. Successful planning teams include the owner of the building,
20
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Estimating 2003 Building-Related Construction and Demolition Materials Amounts
the architect, and the contractor. Success stories of C&D recovery can be found at
www.epa.gov/cdmaterials.
There are other barriers that exist to C&D materials recovery. In some locations, recovery
facilities do not exist. Even where facilities do exist, markets have not been found for some
materials for a variety of reasons. There could be a lack of demand for a material, an
unwillingness to use recycled materials in place of virgin resources, or a regulatory prevention of
its use. Many markets view recycled materials as inferior simply because they are viewed as
wastes, yet they often have the same chemical or physical properties as comparable virgin
materials, and provide comparable performance; in some cases, they provide superior
performance than do virgin materials at a lower cost. EPA aims to expand recognition of the
value of C&D materials so that they are more widely viewed as locally available resources,
rather than un-usable discards.
Potentially harmful materials, such as asbestos, lead-based paint (LBP), and polychlorinated
biphenyls (PCBs), have historically been used in the construction and maintenance of many
buildings. These materials can greatly affect the recyclability of some materials, especially those
derived from older buildings. In some instances, concerns about the possibility of these
materials entering the recycling stream have prevented entire segments of the C&D materials
stream from being recycled. The specific percentage of C&D materials that contain asbestos,
lead, or PCBs is unknown. As a result, it is very difficult to determine the impact the presence of
these compounds in C&D materials has on C&D materials recovery. Some data are available on
the use and prevalence of these harmful materials in buildings. It was recently reported that, as
of 2000, 38 million homes in the U.S. still contained LBP somewhere in the building, either on
interior or exterior surfaces (Clickner et al. 2001). According to the United States Geological
Survey (USGS), asbestos use in all applications (including construction) declined from
approximately 7,600 tons in 2002 to approximately 5,100 tons in 2003. In fact, the consumption
of asbestos in 2003 represented less than 0.6% than that of the consumption in 1973, the peak
year for U.S. asbestos consumption. According to the USGS, the current primary use of asbestos
in construction is in some roof coatings, not in asphalt shingles (2003). In fact, recent testing of
old asphalt shingles from re-roofing activities collected at recycling centers indicates that the
presence of asbestos is relatively rare and should continue to be come even more rare as these
shingles are removed an replaced with non-asbestos-containing shingles (CMRA 2007).
Unfortunately, asbestos testing costs and time delays can be a disincentive to recycling and, as a
result, recycling rates for asphalt shingles continue to be low. LBP was banned in 1978, some
uses of asbestos in buildings were banned by 1978, and PCBs were banned in 1979.
3.2.2 Quantifying Recovery of C&D Materials
There are a number of organizations that are working to overcome the barriers to C&D materials
recovery. EPA works with other governmental and industry partners in funding new research,
promoting safe uses for C&D materials, and in conducting education and outreach. For example,
through the Waste Wise partnership program, the EPA rewards those who have created
successful recycling programs. For more information about Waste Wise, please see
www.epa.gov/wastewise. To learn more about what the EPA is doing to increase C&D materials
recovery, please see www.epa.gov/cdmaterials.
21
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There are various sources of C&D materials recovery data that capture different parts of the
recovery stream, including surveys of contractors, surveys of recyclers, and estimates made by
state environmental agencies. These sources are discussed in detail in Appendix B. While the
surveys of contractors could be used for this estimate, EPA was not able to find a recent survey
of recycling in the residential building sector. Additionally, those surveys of demolition and
nonresidential contractors may not represent actual recovery as the recycling facilities may
actually dispose of a portion of the materials that they receive. While a survey of recyclers was
performed, the surveyors were unable to distinguish the amount of materials derived from
buildings from other materials that were present in the recycling stream. Thus, these estimates
for C&D recovery cannot be compared with the amount of C&D materials generated, which only
represents building materials.
Data collected by state environmental agencies on the amount generated, disposed, and
recovered, on the other hand, are viewed as the most accurate source of information.
Unfortunately, only eight states collect recovery and disposal or generation amounts that could
be used to estimate a recovery rate (see Table 3-1). These states represent approximately 21% of
the U.S. population. Thus, the weighted recovery rate estimated using the eight states' data may
not be fully representative of the entire country. Additionally, state definitions of what
constitutes C&D materials and recycling vary. For example, some states count C&D materials
that are used as alternative daily cover in landfills and for energy recovery13 to be counted as
recycling, while others do not. In the chart below, EPA has labeled the category measured as
"recovery" instead of "recycling" in order to include materials that are recovered for other uses
that do not fall under the definition of "recycling."
The weighted average recovery rate for the eight states for 2003 was 48%. While this number
may not be fully representative of the entire country, it does provide an indicator of C&D
materials recovery in the U.S. However, it is, at best, an approximation. For instance, it is
known that the recovery numbers provided by some states likely include some concrete, asphalt
pavement, and metals from non-building sources, while other states do not include those
materials. Additionally, recovery efforts after disasters could be included in the reported
numbers.14 Thus, the recovery estimate of 48% for buildings may be high. On the other hand,
the reported numbers for other states may not capture the entire amount of building-related C&D
materials that are recovered in that state, either because the C&D materials were exported or
because only certain types of C&D materials recycling facilities are required to report. As with
comparing generation estimates, definitions of "recycling" and "C&D materials" can vary
widely from state to state (see footnote on page 19). The EPA intends to continue working with
state environmental agencies and other partners to develop better national recovery estimates for
the future.
Unfortunately, looking overall at state data does not provide a breakdown of the recovery
amounts for specific materials within the C&D recycling stream, so it is not possible to
determine which sectors or which materials have the largest influence on the recovery rate.
13 On the question of energy recovery, a major market for C&D wood is its use as boiler fuel. Most recyclers
include amounts of wood sold for boiler fuel in their reporting for recycling.
14 For example, over seven million cubic yards (approximately 1 million tons) of vegetative debris was generated in
the three most affected counties of Mississippi after Hurricane Katrina during 2005 and 2006. Such amounts can
have large impacts on data reported as "recycled" and "disposed."
22
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Estimating 2003 Building-Related Construction and Demolition Materials Amounts
Additionally, it is not possible to estimate a material composition. If, through continued work
with state environmental agencies and industry, such estimates are able to be derived, they may
be included in future C&D materials estimations.
Table 3-1. Amount of C&D materials disposed and recovered by reporting state.
Amount of C&D Materials, 2003
State 2003 (tons) Recovery
Florida15
Maryland16
Massachusetts17
New Jersey18
North Carolina19
Utah20
Virginia21
Washington22
Total
Disposed
5,277,259
1,913,774
720,000
1,519,783
1,844,409
1,054,296
3,465,548
1,780,356
17,575,425
Recovered
1,998,256
2,270,100
3,360,000
5,582,336
20,002
46,461
95,131
2,640,560
16,012,846
Rate
48%
3.3 LANDFILL DISPOSAL
Based upon the recovery estimate above, 52% of the building-related C&D materials were
discarded in 2003. Much of this material goes to specifically designated C&D landfills.
However, C&D landfills are regulated by state and local governments, and the federal
government does not collect disposal data for these landfills. Using a survey of states, Kaufman
et al. (2004) reported the number of landfills to be over 1,900 in 2002. This number decreased to
over 1,500 in 2004 (Simmons et al. 2006). The reasons for this decrease vary from state to state.
Similar to the recovery estimate, it is not possible to determine which sectors or materials have
the largest influence on the national disposal rate. Some state and local environmental agencies
have investigated the composition of the waste disposed in landfills within their state.23 These
reports should be consulted when examining regional C&D materials disposal.
C&D materials may also be disposed of in MSW landfills. The amount of C&D materials co-
mingled with MSW and disposed of in MSW landfills or combusted in incinerators without
energy recovery is not known, but could be significant. In some areas, disposal in MSW
landfills is the most common management method for C&D materials. A portion of residential
15 Disposal amount calculated as the amount "recycled" subtracted from the amount "collected." Source: FDEP
2003
Includes asphalt & concrete recycled. Source: MDE 2004
17 Includes tons reported as Disposed and Recycled; does not include tons reported as Other Diversion. Source:
MDEP 2006
18 Includes tons reported as Recycled of "Other Bulky & Const/Demo," "Asphalt, Concrete & Masonry," and
"Wood Waste." Source: NJDEP 2003. Disposal calculated as Type 13C waste + (0.25 x Type 13 waste). Source:
Rinaldi, S., NJDEP, Personal Communication, 2009
19 Source: NCDENR 2006
20 Source: UDEQ 2008
21 Recovered represents those materials reported as "Recycled," "Composted," and "Other." Source: VDEQ 2004
22 Source: WDEco 2008
23 Examples of C&D materials composition studies performed by state or local environmental agencies include (but
are not limited to) CIWMB 2006, Reinhart et al. 2003, OCDSWM 2009, VDEC 2002, and Iowa DNR 2009.
23
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renovation materials is also discarded by homeowners into the household trash and disposed of
in MSW landfills or combusted in incinerators. Some C&D materials, typically those considered
to be "inert," are used as fill in old quarries and other pits. Some states do not require permits
for this use of C&D materials and, therefore, little is known about the total amount of materials
used in this manner.
24
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Estimating 2003 Building-Related Construction and Demolition Materials Amounts
4 Conclusions
A methodology utilizing national statistical data on the amount of construction, renovation, and
demolition activity in the U.S. and average amounts of waste generated at job sites was used to
estimate that approximately 170 million tons of building-related C&D materials were generated
in the U.S. during 2003. This is a 25% increase in generation from the 1996 estimate of 136
million tons. During the same time period, total construction spending increased 50% (USCB,
2007), however it was estimated that building construction increased only 32%. Construction
spending increases can also reflect inflation, profit, and other factors that do not necessarily
correlate to increased materials use.
Of the amount generated, approximately 48% was estimated to be recovered, based on state-
reported disposal and recovery data. This recovery rate may be an overestimate due to the
inclusion of materials that are from non-building sources. This recovery estimate is a 23%
increase from the 1996 estimate. Comparison of these estimates should be viewed with caution
because data limitations created the need for different methodologies in 1996 and 2003.
The amount of available information varies from year to year as few entities collect consistent
national data regarding C&D materials. Thus, various sources of data must be relied on to make
national estimates of C&D generation and recovery. Decreasing available landfill space and
interest in green building will all have a positive impact on the rates of recovery of C&D
materials; until recently, the rise in commodity prices had a similar impact. EPA will continue to
work in partnership with state environmental agencies, AGC, BMRA, CMRA, NAHB, and NDA
to actively promote recovery and recycling of C&D materials.
25
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References
California Integrated Waste Management Board (CIWMB). Targeted Statewide Waste
Characterization Study: Detailed Characterization of Construction and Demolition Waste.
Publication #341-06-007, Sacramento, California.
Clickner, R., D. Marker, S. Viet, J. Rogers, and P. Broene. National Survey of Lead and
Allergens in Housing Volume I: Analysis of Lead Hazards. Westat, Inc., Rockville, Maryland.
2001.
Construction Materials Recycling Association (CMRA). Environmental Issues Associated with
Asphalt Shingle Recycling. Eola, Illinois. 2007.
Florida Department of Environmental Protection (FDEP). Recycling2003 Solid Waste Annual
Report Data. Tallahassee, Florida. 2003.
Gershman, Brickner & Bratton Inc. Construction and Demolition (C&D) Debris Generation and
Disposal in Anne Arundel County, Maryland. Prepared for Anne Arundel County Department of
Public Works, Annapolis, Maryland. March 1995.
Heenan, W., Steel Recycling Institute. Personal communication. December 2005.
Iowa Department of Natural Resources (DNR). lowaDNR: Iowa Construction and Demolition
Debris Recycling, http://www.iowadnr.gov/waste/recycling/cndiowa.html (Last accessed
February 3, 2009.
Joint Center for Housing Studies of Harvard University. The Changing Structure of the Home
Remodeling Industry. 2005.
Kaufman, S., N. Goldstein, K. Millrath, and N. Themelis. "The State of Garbage in America".
BioCycle. January 2004.
Maryland Department of the Environment (MDE). Solid Waste Managed in Maryland, Calendar
Year 2003. Baltimore, Maryland. September 2004.
Massachusetts Department of Environmental Protection (MDEP). Solid Waste Master Plan:
2006 Revision. Boston, Massachusetts. June 2006.
McKeever, D.B. "Inventories of Woody Residues and Solid Waste Wood in the United States,
2002," Ninth International Conference on Inorganic-Bonded Composite Materials Conference,
Vancouver, British Columbia, Canada, October 10-13, 2004.
McKeever, D.B. and R.H. Falk. "Woody Residues and Solid Waste Wood Available for
Recovery in the United States, 2002." Management of Recovered Wood Recycling, Bioenergy
and Other Options, Christos Gallis, (editor) - Thessaloniki, April 22-24 2004.
National Association of Home Builders Research Center (NAHBRC) survey results for 1995.
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Estimating 2003 Building-Related Construction and Demolition Materials Amounts
NAHB Research Center, Inc. Deconstruction -Building Disassembly and Material Salvage: The
Riverdale Case Study. Prepared for the US Environmental Protection Agency. June 1997.
NAHB Research Center. Deconstruction - Building Disassembly and Material Salvage: The
Riverdale Case Study. June 1997.
NAHB Research Center. Waste Management Update 2: Asphalt Roofing Shingles. October 1996.
New Jersey Department of Environmental Protection (NJDEP). 2003 Material Specific
Recycling Rates in New Jersey. Trenton, New Jersey. 2003.
North Carolina Department of Environment and Natural Resources (NCDENR). North Carolina
Solid Waste Management Annual Report July 1, 2005 -June 30, 2006. Raleigh, North Carolina.
2006.
Orange County Department of Solid Waste Management (OCDSWM). Construction and
Demolition Composition, http://www.co.orange.nc.us/recycling/cdcomposition.asp (Last
accessed February 3, 2009).
Reinhart, D., T. Townsend, H. Heck, K. Cochran, S. Chakrabarti, and S. Medeiros. Generation
and Composition of Construction and Demolition Debris in Florida. Florida Center For Solid
and Hazardous Waste Management. February 27, 2003.
R.W. Beck and Chartwell Information Publishers. Size of the United States Solid Waste Industry.
2001. Sponsored by Environmental Research and Education Foundation, Alexandria, Virginia.
Portland Cement Association. Market Research, http://www.cement.org/market (Last accessed
May 11,2007).
Public Health Service, Bureau of Solid Waste Management. Technical and Economic Study of
Solid Waste Disposal Needs and Practices. 1969. (Referenced in Handbook of Solid Waste
Management).
Sandier, K. "Analyzing What's Recyclable in C&D Debris." Biocycle. November (2003) 51-54.
Schneider, A., University of California, Santa Cruz. "The Fort Ord Deconstruction Pilot
Project." 5th Annual Construction Materials Recycling Seminar. October 1997.
Simmons, P., N. Goldstein, S. Kaufman, N. Themelis, and J. Thomspon, Jr. "The State of
Garbage in America." Biocycle. April 2006.
Taylor, M. "Moving and Shaking". Waste Age Online. October 2005.
http://www.wasteage.com/mag/waste moving shaking/
Taylor, M., National Association of Demolition Contractors. Personal communication December
2005.
27
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Townsend, T., et al. The Management and Environmental Impacts of Construction and
Demolition Waste in Florida. June 1998.
U.S. Census Bureau, "Industry General Summary: 2002 Construction," 2002 Economic Census,
Washington, DC, October 2005a.
U.S. Census Bureau. Table Q-6. New Privately Owned Housing Units Completed in the United
States, by Intent and Design. 2005b.
U.S. Department of Commerce, Census Bureau. C-Series (Construction) Reports.
U.S. Census Bureau, Construction Spending, http://www.census.gov/const/www/c30index.html
(last accessed October 2008).
U.S. Department of Agriculture (USD A) Forest Service. Directory of Wood-Framed Building
Deconstruction and Reused Building Materials Companies, 2004. General Technical Report
FPL-GTR-150. July 2004.
U.S. Department of Housing and Urban Development. American Housing Survey. Components
of Inventory Change: 2003-2005, 2007.
U.S. Energy Information Administration. Commercial Building Characteristics., 1992.
U.S. Environmental Protection Agency. Office of Solid Waste. Characterization of Building-
Related Construction and Demolition Debris in the United States. EPA530-R-98-010. U.S.
Environmental Protection Agency, Washington, DC. June 1998.
U.S. Environmental Protection Agency. Municipal Solid Waste in the United States: 2003 Facts
and Figures. U.S. Environmental Protection Agency, Washington, DC. 2005.
U.S. Geological Survey. Minerals Yearbook 2003. U.S. Geological Survey, Reston, Virginia.
2003
Utah Department of Environmental Quality (UDEQ). Solid Waste Section Webpage.
http://www.hazardouswaste.utah.gov/SWBranch/SWSection/SolidWasteSection.htmtfSolidWast
eAnnualReportForms. Last accessed September 18, 2008.
Vermont Department of Environmental Conservation (VDEC). Vermont Waste Composition
Study. Waterbury, Connecticut. 2002.
Virginia Department of Environmental Quality (VDEQ). Solid Waste Managed in Virginia
During Calendar Year 2003. Richmond, Virginia. 2004.
Walker, B. City of Portland Solid Waste and Recycling Division Office of Sustainable
Development. Personal communication. December 2005.
Washington Department of Ecology (WDEco). Construction and Demolition (C&D) Related
Materials Recycled, Diverted and Disposed in Washington: 1992-2005 (tons).
28
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Estimating 2003 Building-Related Construction and Demolition Materials Amounts
http://www.ecy.wa.gov/beyondwaste/data_tables/c_and_d_%20final.xls. Last accessed June 27,
2008.
Washington State Dept. of General Administration, Division of Engineering and Architectural
Services. Sustainable Design and Construction: Demolition Waste Recycling.
www.ga.wa.gov/EAS/greenAVLCBWarehouse.doc.
Wilson, D.G., ed. Massachusetts Institute of Technology. Handbook of Solid Waste
Management. Von Nostrand Reinhold Company. 1977.
Yost, P., NAHB Research Center. Personal communication. July 1998.
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30
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APPENDIX A
BUILDING-RELATED C&D MATERIALS GENERATION AMOUNT
CALCULATIONS
A-l
-------
Table A-l. Residential Construction Materials Worksheet
Method Used
(1) Start with total dollars of new construction, from Census Bureau. Current Construction Reports, C-30.
(2) Calculate sq ft of new construction from total dollars and $/sq ft construction cost.
(3) From empirical waste assessment, estimate Ib/sq ft of new construction
(4) Calculate total generation
Calculation 2003
(1) C-30, Residential Construetion = $352,652,000,000
(Includes private new housing units and public housing & redevelopment)
(2) Table 925 of 2004 Statistical Abstract of the United States (Note: whole industry not included)
Residential Construction $282,000,000,000
Residential sq ft of new construction 3,672,000,000 sq ft
Cost of new construction =
($ Residential construct!on/sq ft Residential new construction) $76.80 per sq ft
2003 Totalsqftof newconstr= 352,652,000,000/76.80 4,590,000,000 sqft
(3) See sampling waste assessment results Table 2-1:
Average Generation = 4.39 Ib/sqft
(4) Total estimated amount of residential construction materials generated in 2003 10,100,000 tons
Note: Data are rounded to the appropriate significant digits. Data may not add to totals shown.
Table A-2. Nonresidential Construction Materials Worksheet
Method Used
(1) Start with total dollars of new construction, from Census Bureau. Current Construction Reports, C-30.
(2) Calculate sqft of new construction from total dollars and $/sq ft construction cost.
(3) From empirical waste assessment, estimate Ib/sq ft of new construction
(4) Calculate total generation
Calculation 2003
(1) C-30, Nonresidential Construction* $256,501,000,000
(Includes lodging, office, commercial, health care, educational, religious,
public safety, and manufacturing categories)
(2) Table 925 of 2004 Statistical Abstract of the United States (Note: whole industry not included)
Nonresidential Construction $ 153,500,000,000
Nonresidential sq ft of new construction 1,380,000,000 sq ft
Cost of new construction =
($ Nonresidential construction/sq ft Nonresidential new construction) $111 per sq ft
2003 Total sqft of new construe tion = 256,501,000,000/111.23 2,310,000,000 sqft
(3) See sampling waste assessment re suits Table 4:
Average Generation = 4.34 Ib/sq ft
(4) Total estimated amount of nonresidential construction materials in 2003 = 5,010,000 tons
*Data downloaded from the Census Bureau website July 2005.
Note: Data are rounded to the appropriate significant digits. Data may not add to totals shown.
A-2
-------
Table A-3. Residential Demolition Materials Worksheet
Method Used
(1) How many demolitions per year?
(2) What is average size of house that is demolished?
(3) How many pounds per sq ft are generated ?
(4) What is total generation?
Calculation
(1) Assume 240,000 residential demolitions per year **
(2) Average size based on 1975 housing sizes, because older homes are more likely to be demolished.
1,600 sq ft per single family house and 1,000 sq feet per multi-family units
(3) Sampling of nine SF houses (Table 5) = 50 Ib/sq ft without concrete
Estimated weight of foundation 30'x30' house w/8" thick basement walls
30'x8'x0.67'x4xl50 Ib/cu ft/2000 = est. tons of foundation
(assumes 8 in. wall thickness and concrete density of 150 Ib.cu ft)
Basement floor (assumes 4 in floor)
30'x30'/3xl50 Ib/cu ft/2000 =tons of floor
Garage floor and driveway 10x(20+45)/3xl50/2000 _
Total for 1,600 sq ft single family with full basement & garage
Total per area
Concrete only
40.0 tons
48.2 tons
22.5 tons
16.3
For house on slab (basic house)
Concrete slab (same as basement floor)
Garage floor and driveway (same as above)
Total for 1,600 sq ft single family on slab
Total per area
Concrete only
For house with crawl space (no bsmt, garage, or driveway)
Total for 1,600 sq ft single family with crawl sp
Concrete only
For MF housing (Table 5)
(4) Fraction of total units in U.S. from 2004 Statistical Abstract of the United States, Table 947.
Single family
127.0 tons
158.7 Ib/sqft
108.7 Ib/sqft
40.0 tons
22.5
16.3
78.8 tons
98.4 Ib/sq ft
48.4 Ib/sq ft
40.0 tons
50.0 Ib/sqft
0.0 Ib/sqft
127 Ib/sqft
Fraction of Materials Generated Total units Generation
total Units per Unit (tons) demolished (tons)
Full or partial bsmt 29% 127 70,000 8,900,000
Concrete slab 20% 79 48,000 3,800,000
Crawl sp & other 19% 40 43,000 1,700,000
Total Single Family 68%
Multi-family 32%
Total estimated amount of residential demolition
161,000 14,400,000
64 77,000 4,600,000
materials generated 19,000,000 tons
in 2003
** American Housing Survey. Components of Inventory Change: 2001-2003. U.S. Department of Housing and Urban Development.
Residential units demolished per year = single family and multifamily units lost to demolition for the period 2001-2003 divided by 2 plus
single family and multifamily units lost due to damage or are condemned divided by 2 times 50%. The units lostto damage or are
condemned do not reenter the housing stock unless they are repaired. The 50% estimates these types of units from previous years that are
eventually demolished.
Note: Data are rounded to the appropriate significant digits. Data may not add to totals shown.
A-3
-------
Table A-4. Residential Renovation Materials Worksheet
Method Used
(1) Estimate the number of replacements of roofs, driveways, HVAC, kitchens, etc.
and the amount generated from each.
(2) Calculate total generation
Calculation
(1) Estimate s for remodeling
Million jobs (a) Tons/job (b) Tons
Kitchens (minor) 1.41 0.75 1,100,000
Kitchens (major) 0.58 4.5 2,600,000
Baths (minor) 1.64 0.25 410,000
Baths (major) 0.70 1.00 700,000
Additions 2.59 0.75 1,900,000
(2) Replacements (see estimates on following Appendix Tables A-6, A-7, A-8, & A-9)
Concrete from driveway replacements 20,000,000 tons/year
Asphalt roofs 7,000,000
Wood roofs 2,000,000
Heating & A/C replacements 2,096,000
Kitchen remodeling 3,700,000
Bathroom remodeling 1,110,000
Additions 1,900,000
Total estimated amount of residential renovation materials in 2003 37,806,000 tons
(a) The Changing Structure of the Home Remodeling Industry. Joint Center for Housing Studies of Harvard
University.
(b) Yost 1998
Note: Data are rounded to the appropriate significant digits. Data may not add to totals shown.
A-4
-------
Table A-5. Nonresidential Renovation Materials Worksheet
Method Used:
Compare total nonresidential and residential improvement expenditures and assume that the
amount of waste generated is proportional to dollars spent in these two sectors.
(1) Determine total expenditures of nonresidential improvements and repairs from historical
Census data*
(2) Multiply quantity of residential renovation debris (Table A-4) by
the ratio of nonresidential to residential improvement expeditures.
Calculation
(1) Total estimated expenditures for nonresidential improvements in 2003** 155,400
This compares to 2003 residential improvement expenditures of 176,899
Total 2003 improvement expenditures 332,299
(2) Estimated generated nonresidential renovation materials amount in 2003 =
155,400 / 176,899 x 37,806,000 = 33,210,000 tons
* Calculate this number by assuming the ratio of residential to nonresidential dollars spent is the same in 2003 as in
1992 (See methodology used for 1996; EPA 1998). No data available on total nonresidential renovation dollars
spent in 2003.
** Assume same ratio of res/nonres as in 1992. ($100,400 million residential and $114,300 million nonres) times the
current dollars spent of residential renovation debris.
(100,400/114,300 x 176,899 = 155,386)
Note: Data are rounded to the appropriate significant digits. Data may not add to totals shown.
Table A-6. Estimated Weight of Residential Concrete
Driveways Replaced in the U.S., 2003
Total Housing units with < 5 units/structure, 2003 housing units. Median
age of housing = 32 years (1)
Assume dimensions of ave driveway (ft)
Calculated average driveway volume (cu ft)
Estimated percent of driveways replaced each year
Est. percent of homes with concrete driveways
Replacements/yr (total units times % replaced)
Total concrete removed (cu ft)
Density of concrete (Ib/cu ft)
100.0
3%
60%
150
45
92,043,000
0.333
2,000,000
200,000,000
Total tons of concrete in 2003
20,000,000
(1) 2004 Statistic al Abstract of the United States
Note: Data are rounded to the appropriate significant digits. Data may not add to totals shown.
A-5
-------
Table A-7. Estimated Weight of Residential Asphalt Roofs Replaced in the U.S., 2003
Total Housing units with < 5 units/structure, 2003 housing units. Median
age of housing = 32 years (1) 92,043,000
Assume average roof area (sq ft) 1,400
Assume weight of asphalt roof (lb/100 sq ft) 240
Ave rage wt of asphalt roof (Ib/roof) 3,400
Estimated percent of homes with asphalt roofs (2) 67%
Estimated percent of roofs replaced each year (2) 7%
Replacements/yr (total no. times percent replaced) 4,000,000
Total tons of asphalt roofing removed in 2003 7,000,000
(1) 2004 Statistical Abstract of the United States
(2) NAHB Research Center Waste Management Update 2, October 1996.
Note: Data are rounded to the appropriate significant digits. Data may not add to totals shown.
Table A-8. Estimated Weight of Residential Wood Roofs Replaced in the U.S., 2003
Total Housing units with < 5 units/structure, 2003 housing units. Median
age of housing = 32 years (1) 92,043,000
Assume average roof area (sq ft) 1,400
Assume weight of wood roof (lb/100 sq ft) 200
Calculated weight of wood roof (Ib/roof) 3,000
Estimated percent of homes with wood roofs 25%
Estimated percent of roofs replaced each year 5%
Replacements/yr (total times percent replaced) 1,000,000
Total tons of wood roofing removed in 2003 2,000,000
(1) 2004 Statistical Abstract of the United States
Note: Data are rounded to the appropriate significant digits. Data may not add to totals shown.
Table A-9. Estimated Weight of Residential HVAC Equipment Replaced in the U.S., 2003
Total Housing units, 2003. 120,777,000
Median age of housing = 32 years (1)
Warm air furnaces
Electric heat pump
Steam or hot water systems
Floor, wall, or pipeless furnace
Built-in electric units
Room heaters
Stoves
Fireplaces
Central air
Total Replacement Products in the U.S. (2003)
(1) 2004 Statistical Abstracts. Table 947.
Note: Data are rounded to the appropriate significant digits. Data may not add to totals shown.
A-6
Estimated
Ib/unit
300
600
1,000
200
200
200
200
300
600
U.S. (2003)
Number in
use (1)
73,449,000
13,278,000
14,425,000
6,039,000
5,739,000
3,217,000
1,350,000
250,000
72,649,000
Est. %
replaced
each year
5
5
o
J
5
1
1
3
4
5
Total TPY
600,000
200,000
200,000
30,000
40,000
20,000
4,000
2,000
1,000,000
2,096,000
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APPENDIX B
SOURCES OF C&D MATERIALS RECOVERY DATA
B-l
-------
Sources of C&D Materials Recovery Data
Many sources compile information on C&D materials recovery, either for reuse, recycling,
beneficial use, or energy. Industry associations are interested in the amount of materials that
their members recover. Some federal agencies collect data on C&D materials recovery in studies
that they perform. Since C&D materials are regulated at the state and local level, some state
agencies track the amount that is disposed and/or the amount that is recycled in their state.
Surveys of C&D Materials Processors/Recyclers and Reuse Stores
Construction Materials Recycling Association (CMRA). The CMRA represents companies
that process materials for recycling, beneficial use, or energy recovery markets. They surveyed
their members in 2004 to determine the number of operating facilities and the amount of material
that they are processing. Since not all C&D materials recyclers are members of the CMRA, they
projected the member survey results onto the non-members. Sources of materials include all
C&D generators, including building, road, and other structure sites.
The number of recycling facilities for C&D materials has been growing rapidly in the last few
years. The CMRA estimated there were at least 2,800 operating C&D recycling facilities in
2004. That estimate included approximately 2,400 concrete and asphalt pavement crushing
facilities, 250 mechanized mixed-waste C&D facilities, and 150 wood waste processors.
CMRA estimated that approximately 197 million tons of C&D materials were recovered in 2004,
including 28 million tons at mixed2 C&D materials processing facilities, 155 million tons at
concrete and asphalt crushing facilities, and 14 million tons at wood waste processing facilities.
These amounts do not include asphalt pavement recycled in-place or at hot-mix asphalt plants.
These amounts, however, include materials from many sources beyond typical building
construction, renovation, or demolition sites, such as concrete from transportation and utility
projects, wood waste from land clearing, and wood waste in the form of pallets and wood spools.
It also does not include any materials that were reused or recycled at the job site, without first
processing the material at a recycling facility.
It can be assumed that most of the materials that mixed C&D materials processing facilities
receive are from buildings. Some of the materials from buildings, however, go to
concrete/asphalt pavement facilities and wood waste processing facilities, but the majority does
not. Thus, if this amount (28 million tons) is compared to the amount of C&D materials
estimated as generated (164 million tons), the recycling rate would be 16%. This is much lower
than the estimated 48% calculated using reported state data. This quick calculation demonstrates
the uncertainty inherit in the estimates generated for this report.
Building Materials Reuse Association (BMRA). The BMRA is a non-profit educational
organization whose mission is to facilitate building deconstruction and the reuse/recycling of
recovered building materials. Members include owners of C&D materials reuse stores,
deconstruction contractors, and manufacturers of reclaimed wood products. In 2006, the BMRA
surveyed their members to determine the amount of C&D materials reused in the U.S. and
24 Mixed C&D processing facilities are those that accept heterogeneous loads of C&D materials and do not require
C&D materials loads to be segregated by material.
B-2
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received a 17% response rate to the survey. If the results of this survey were projected to their
entire membership, it can be estimated that approximately 200,000 tons of C&D materials are
reused in the U.S. every year.
Surveys of Contractors
National Demolition Association (NDA). The NDA is a non-profit trade organization
representing more than 1,000 U.S. and Canadian companies which offer standard demolition
services, as well as a full range of demolition-related services and products. Its educational
efforts help members stay abreast of regulatory and safety matters. The NDA also keeps
regulators informed about issues facing their industry. In addition, the NDA is dedicated to
increasing public awareness of the industry, as well as providing members with information on
the latest technical advances in equipment and services. In 2005, the NDA surveyed their
membership to gather data on the quantity of demolition materials recovered for recycling. They
learned that demolition contractors recycle concrete, masonry, wood metals, and asphalt
pavement.
Associated General Contractors (AGC) of America. The AGC is a national construction
trade association representing all facets of commercial construction for both public and private
entities. The AGC has approximately 32,000 member companies representing general
contractors, specialty contractors, service providers, and suppliers. In 2004, the AGC sent an
email survey to their members regarding C&D materials and received 328 responses. Of these
responses, 58% reported that they recycle C&D materials, mostly asphalt pavement, concrete,
steel, and wood.
Data Collected by State Agencies
A search of reuse, recycling, or diversion data collected by states was performed. Eight states
collected data on C&D materials recycling for 2003. Although this information is labeled as
tons "recycled," these numbers could also include C&D wood used as boiler fuel or other C&D
materials that were not, by some definitions, "recycled." These data show that there is
significant recovery of C&D materials for recycling in some locations. However, it is not known
if these areas are fully representative of the United States as a whole.
Data Collected by Federal Agencies
U.S. Department of Agriculture (USDA). Deconstruction is the process of selective
dismantling or removal of materials from buildings before or instead of demolition. A common
practice in the United States is to remove materials of value from buildings prior to and during
demolition for recycling or reuse. Reuse examples include electrical and plumbing fixtures that
are reused, steel, copper, and lumber that are reused or recycled, wood flooring that is remilled,
and doors and windows that are refmished for use in new construction. The USDA Forest
Service has compiled a directory of companies that are involved in the deconstruction and reuse
of materials from wood-framed buildings (USDA 2004). According to this directory, there are
420 companies involved in deconstructing buildings or selling reusable materials.
The USDA has also collected information on the amount of wood waste that is generated and
recovered (McKeever 2004; McKeever and Falk 2004). They have estimated that approximately
B-3
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39 million tons of C&D wood waste was generated in 2002. This represents approximately 24%
of the total C&D estimate of 164 million tons reported in this study, which is consistent with past
estimates that show that wood represents approximately 20-30% of building-related C&D
materials (Sandier, 2003).
U.S. Geologic Survey (USGS). The USGS has been keeping track of the amount of minerals
that the U.S. extracts, imports, and exports since the late 19th century. They publish the Minerals
Yearbook annually, which reports the results of minerals and metals producer surveys. When
surveying crushed stone, sand, and gravel producers, they have discovered that some of these
producers have started recycling concrete to supplement their business. While it is assumed that
these producers recycle a small portion of the total amount of concrete recycled in the U.S., these
data demonstrate the increasing acceptance of and demand for recycled concrete aggregate.
U.S. Department of Energy (USDOE). The USDOE reports the amount of energy that is
produced from various sources, including wood waste. It is unknown, however, the proportion
of the wood waste used for energy that originated from C&D sources. Other sources of wood
waste include paper production plants, saw mill plants, retail stores, and other sources.
B-4
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About AGC of America
Construction & Demolition Materials
Recycling - Measuring Success
Melinda L. Tomaino
The Associated General Contractors of America
Resource Conservation Challenge Workshop
Thursday, February 22, 2007
National trade association, est. 1918
98 chapters
Approx. 32,000 member companies
- 7,000 general contractors
- 11,000 specialty contractors
About AGC Members
AGC Environmental Services
Majority are small businesses
Multiple types of construction
Varied project delivery methods
Compliance tools, educational programs,
publications
Storm water, wetlands (Section 404
permits), TMDL, air quality, diesel retrofit,
endangered species, hazardous and non-
hazardous waste, EMS, green construction,
AGC/EPA Joint Efforts
2004 C&D Debris Survev
Network Partner, EPA National
Environmental Performance Track Program
Partner, EPA Sector Strategies Program
OECA - Compliance tools
OAR - Reports, workgroups and
collaboratives
OSWER -
Establish a baseline
Understand the barriers
- Facilitate recycling
B-5
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2004 C&D Debris Survey
Survey Results
Survey e-mail sent May 28, 2204 and
closed June 26, 2004
811 members went to the online survey
page from e-mail
328 completed the survey
Size of company
- 123 small businesses
- 82 medium-sized businesses
- 123 large businesses
Does company recycle
191 do recycle
- 137 do not
B-6
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Survey Results
Project-specific information and estimates
- Respondents by project type
186 building, 59 highway, 29 demolition,
20 utility, 26 unspecified
Projects in 43 states
Projects varied in value ($1500 to $4 billion)
Focused on asphalt, concrete, steel, and wood
Survey Results
AGC Conclusions
68.0 percent of asphalt debris was recycled of the
average 15,664 tons generated per site
(91-93 recorded responses)
88.7 percent of concrete debris was recycled of the
average 15,126 tons generated per site
(148-151 recorded responses)
13.6 percent of wood debris was recycled of the
average 1,708 tons generated per site
(121-125 recorded responses)
87.3 percent of steel debris was recycled of the average
1,939 tons generated per site
(123-128 recorded responses)
Survey results suggest contractors are
willing to recycling, where feasible.
Survey results and other communications
with contractors show an absence of
cultural barriers to recycling.
such as availability of recycling facilitk
and a market for recycled materials.
Next Steps
Contact Information
XrC s Environmental Agenda
Objective 4: Facilitate members' efforts to
recycle or reuse C&D debris
Develop resources for members
Investigate barriers to recycling
Melinda L. Tomaino, LEED AP
Associate Director, Environmental Services
AGC of America
2300 Wilson Blvd, Suite 400
Arlington, VA 22201
(703)837-5415
tomainom@agc. org
B-7
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Trends in Building Deconstruction and Materials Reuse
Brad Guy 11/06/06
Introduction
This article is intended to provide an update on some of the trends in the deconstruction
and reuse industry. One major aspect of the building materials reuse industry in North
America is the HfH ReStore network. Restores are retail outlets for donated and
reclaimed building materials facilities operated by HfH affiliates as a fundraising
mechanism for their home-building programs. The Habitat for Humanity (HfH) ReStore
network is growing by leaps and bounds. As an example, in Canada, in 2000 there were
16 ReStores with gross sales of $3.1 million. In 2005, there were 41 Canadian ReStores
with gross sales of $14.5 million. This is a growth of 156% in the number of stores, and a
growth of 368% in revenues in just 5 years (HfH Partnernet, 2006). The numbers for the
US are similar. According to a study by Penn State University, the average ReStore age is
5 years, with the oldest is 18 years old. More than half of the ReStores have operated for
less than 5 years (57.6%), while 28.8% have operated for more than 5 but less than 10
years, and 13.6% have operated for more than 10 years (Judd and Echols, 2005).
Survey
In a recent survey of deconstruction and reuse organizations, an attempt was made to
ascertain the materials flows and economics of deconstruction and reuse in the US. An
email survey was sent to 450 organizations identified in three categories, deconstruction
services, reused materials retail sales and value-added products manufacturing with
reclaimed wood. A total of 76 responses was received or about a 17 % response rate.
Of these 76 respondents, 41 were reuse stores only, and 28 combined both deconstruction
services with retail reuse sales. Of the firms that were reuse stores only, 59% reported
conducting some form of active salvage operations, with the remaining 41% relying
solely on donations. The remaining 7 respondents focused on wood reuse only, through
remanufacturing.
Employment
Firms combining deconstruction with a reuse store employ on average more full-time
employees (FTE) per organization than those with a reuse store only, 5.8 to 4.6 FTE per
firm, respectively. It should be noted that many non-profit reuse stores especially the HfH
ReStores may also have labor provided by volunteers that is not accounted for by a
measure of FTE, while comprising a significant component of the total labor utilized by
the organization. The large majority of organizations employed a small number of
persons, with 12% of combined deconstruction and reuse firms reporting 16 or more
employees. Firms that conduct reclaimed wood value-adding products manufacturing
reported an average of 15 employees per firm. Clearly, the value-added aspect of the both
front-end deconstruction and back-end remanufacturing provides much greater potential
for employment than direct retail resale by itself.
-------
Table 1. Firms with Deconstruction and Reused Materials Sales
1-5 employees - 69% of firms
6-10 employees - 14% of firms
11-15 employees - 5% of firms
16-20 employees - 10% of firms
More than 20 employees - 2% of firms
Revenues
Firms combining deconstruction and a reuse store reported greater average annual
revenues per organization than organizations with a reuse store only, $430,796 to
$383,849 per firm, respectively. The difference is about 12% average higher annual
revenues per firm. Anecdotally, while there is some investment required for
deconstruction and salvage services, a much greater investment is required for the
facilities and equipment of a reuse store, such as the warehouse space, racking for
materials, fork-lift, a truck for pick-ups, etc. Adding deconstruction to a reuse facility
operation can add net revenue potential evidenced by higher average revenues for the
combined firms. The investment is minimal in terms of equipment compared to
demolition, but similar to demolition in terms of potential increased insurance
requirements. Adding a reuse facility to an existing demolition or deconstruction firm is a
greater investment than the deconstruction operational requirements alone. There is more
capital investment in land, building(s), and equipment.
Not surprisingly, the firms engaged in reclaimed lumber value-adding reported average
annual revenues of $2,089,286 per firm. With an average 3 times more employees, these
firms also have 3-4 times greater annual revenues than the organizations engaged in the
recovery of the materials and direct reused materials sales. Anecdotally there is trend
towards reuse firms adding a value-added component to their operations. Also
anecdotally there are considerable difficulties to the endeavor especially when the value-
added product sales are located at the reuse facility. In many cases the markets are very
different for a value-added higher cost remanufactured product and the reused building
materials store's established clientele which are used to purchasing low-cost products.
Materials Flow
The average amount of materials reported handled annually by firms engaged in both
deconstruction and retail reuse sales was 1,011,286 LBS per firm compared to 583,376
LBS per firms only engaged in reuse retail sales. The firms engaged in wood value-
adding reported about 1,132,500 LBS of wood materials handled on average per firm per
year. Most reuse retail sales firms that responded did not know the amount of materials
they handled per year in mass. About 69% of the firms conducting only reuse sales
reported not knowing the materials they handled other than by revenues. About 61% of
the firms conducting both deconstruction and reuse sales reported not knowing the total
amount of materials they handled by mass. Firms that remanufacture wood products all
reported a board feet metric of the wood materials they processed. There seems to be a
small correlation between the amount of materials handled and number of employees,
and the attention paid to tracking the materials handled.
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While many non-profit reuse firms may rely more on volunteer labor and function with
lower revenues, making it difficult to justify and implement quantity-based inventory
systems, they might also be motivated to track materials flow in regards to environmental
metrics for the purposes of donor reporting and demonstrating goals such as waste
diversion.
Revenues per Employee and Mass of Materials
The average revenues per employee reported by firms engaged in combined
deconstruction and reuse retail sales was $73,900 compared to $96,516 per firm for
organizations engaged in reuse retail sales only. It is not clear if this relates to wage
differences between deconstruction employees and retail store employees in general or
other factors. An anecdotal factor, as mentioned above, is that there is less capital
overhead involved in just a reuse retail operation by itself compared to a combined
deconstruction and reuse retail sales operation.
Keeping this capital investment lower for reuse firms would certainly increase revenues
per employee, but it can be noted that the combined deconstruction and reuse retails sales
firms employ on average more persons per firm, move more materials by mass per firm
(of which more will be commodity materials such as lumber and brick which are lower
value per pound than many other building components such as doors, windows, cabinets
and fixtures that are the predominant products in building materials reuse retail stores).
Perhaps a trend towards larger facilities and more combined deconstruction and reuse
firms will follow in the next few years. At this time we do not have sufficient information
over time to make this claim.
The revenue per mass of material handled was also calculated from the firms that
reported quantities handled per year. For firms engaged in both deconstruction and reuse
retail sales the average revenue per mass of materials was $1.39 / LB of materials
handled. For firms engaged in reuse retail sales only it was $0.91 / LB and for firms
engaged in reclaimed wood value-adding it was $3.10 / LB of wood materials. Clearly
there is a correlation between the amount of materials handled and the revenues
generated on average and a 3-times greater economic return per LB by the firms engaged
in reclaimed wood value-adding. The last significant factor gleaned from this survey is
the growth in sales by the three types of firms that were categorized. As noted in Table 2,
annual sales revenue growth by firms with combined deconstruction and reuse sales on
average was 56%. As noted in Tables 4, annual sales revenue growth by firms with
reuse retail sales only on average was 32%. As noted in Tables 5, annual sales revenue
growth by firms with reclaimed wood remanufacturing on average was 28%.
Table 2. Combined Deconstruction and Reuse Sales Firms
Average
FTE
5.8
Revenues annual
$430,796
Revenues/FTE
$73,900
#s annually
1,011,286
Revenues/LB
$1.39
% growth
56
Table 3. Deconstruction Component of Deconstruction and Reuse Sales Organizations
Average
Annual projects
28
Contract / project
$12,655
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Table 4. Retail Sales Reuse-Only Firms
Average
FTE
4.6
Revenues annual
$383,849
Revenues/FTE
$96,516
#s annually
583,376
Revenues/LB
$0.91
% growth
32
Table 5. Reclaimed Wood Remanufacturing Firms
Average
FTE
15
Revenues annual
$2,089,286
Revenues/FTE
$132,604
#s annually
1,132,500
Revenues/LB
$3.10
% growth
28
Reclaimed Materials Being Recovered and Sold
The last aspect of this review of the deconstruction and reuse industry was a focus group
review of the most "popular" reclaimed materials. The focus group participants all
engaged in recovery and reuse operations. An extensive list of 39 the most common
reused materials categories was provided to each participant. They were asked to rank
each product based on three criteria. The criteria were: highest resale value; ease of
removal from an existing building; and ease of inventory. These rankings were combined,
scored and averaged to produce an overall score for the materials deemed most easily
recoverable, inventoried and sold. According to this focus group of six successful
deconstruction and reuse store operations, the reclaimed products with highest value for
resale were grouped into four tiers.
The top tier of reclaimed products based on value includes:
Architectural elements
Windows - decorative
Cabinets - complete sets
Lumber - wood finish flooring
The second tier of products based on value includes:
Doors - interior and exterior
Hardware - including door and plumbing fixtures
Windows - double-glazed
The third tier of products based on value includes:
Light fixtures
Appliances - no more than 5 years old
Lumber - 1 x sheathing materials
The fourth tier of products based on value includes:
Brick and stone
Lumber - floor joists and sub-flooring
Electrical - hardware and fixtures
From the perspective of the ease of removal only, the products deemed easiest to remove
by this group of experts include:
Easiest to remove for salvage:
Doors - exterior and interior with associated hardware
Fixtures - ceiling fans, lights, faucets, sinks, mirrors
B-ll
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The second tier of easy-to-remove components includes:
Cabinets - tops and complete sets
Electrical - hardware and fixtures
Exterior - pavers
Windows - decorative
The third tier of easiest-to-remove components includes:
Architectural elements
Windows - double-glazed
Most Desirable Overall (value, removal, inventory) Best to Less Desirable
1. Doors
2. Mantels
3. Architectural elements
4. Faucet - complete set
5. Cabinets - with doors and drawers
6. Windows - double-glazed
Least Desirable Overall (value, removal, inventory) Worst to More Desirable
1. Brick - three-hole
2. Lumber - porch roof framing
3. Lumber - exterior wall framing
4. Slate roofing
5. Lumber - non-load-bearing wall framing
6. Stone - building
Caveats:
Given that a non-profit reuse sales facility is much more amenable to volunteer labor than
deconstruction activities, the reuse sales only organizations potentially make greater use
of volunteer labor which is not accounted for in the FTE accounting. Adding in the
volunteer labor used by non-profit organizations would produce a lower revenues /
employee + volunteer number for both types but potentially more so for the organizations
that conduct reuse sales only, widening this disparity.
Of important note is that the pre-ponderance of the deconstruction / salvage and reuse
retail sales organizations that reported were non-profits versus for-profits, 87% to 13%,
respectively. It should be noted that as non-profit organizations their IRS reporting is
legally required to be made available to the public, whereas this is not so for for-profit
organizations. All of the wood remanufacturing firms that reported were for-profits. The
proportion of non-profit to for-profit firms reporting is much greater than past surveys
suggest is the proportion of non-profit to for-profit in the industry as whole, so this would
clearly distort this information towards the non-profit firm model.
B-12
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Survey Responses
All 140 CMRA Members were sent the CMRA
Survey instrument, plus over 950 other
industry-related companies
39 CMRA Members returned the Survey
28% level of CMRA member participation in
providing some response to Survey
Of CMRA Members that are Processors /
Recyclers, 29 of an estimated 100 returned the
Survey representing 29 %
Summary Returned Surveys
Companies with Processing Plants:29
- Mixed C&D Recyclers: 14
Wood waste Processors: 3
Concrete/Asphalt Recyclers: 12
Members w/o Processing Plants: 10
Summary of Mixed C&D Surveys
Companies Reporting CY 2004 Activity:
- Mixed C&D Companies: 14
Total No. of Mixed Plants Included in the
Survey Data: 16
Range of Annual Capacity
- Plants < 20,000 TPY: 4 (Small)
- Plants > 20,000 TPY: 12 (Med.-Large)
Throughput of Mixed C&D Plants
Tons Processed (All): 1,768,000 TPY
Size Range: 7,000 - 485,000 TPY
Annual Throughput Reported:
- Avg. Throughput (All): 110,500 TPY
Materials Recycled:
- Avg. Recycled Quantity (All): 78,000 TPY
- Avg. Percent: 71% (Includes ADC)
B-13
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Throughput of Small Mixed C&D Plants
Materials Recycled (M-L): 8,600
- Avg. Percent: 88% (Includes ADC)
Summary of Recycling Surveys
Concrete/Inerts-based Plants
Companies Reporting CY 2004 Activity:
- Concrete/Inerts Recyclers: 12
- Total No. of Plants Included in the Survey
Data: 36
Range of Annual Capacity
- Plants < 50,000 TPY: 2 (Small)
- Plants > 50,000 TPY: 34 (Med.-Large)
B-14
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Recvclina Surveys Waste Wood
Processing Plants
Companies Reporting CY 2004 Activity:
- Waste Wood Recyclers: 3
- Total No. of Plants Included in the Survey
Data: 4
Range of Annual Capacity
- Plants @ 1,000 TPY: 1 (Small)
- Plants > 5,000 TPY: 3 (Med.-Large)
Throughput of Waste Wood Plants
Returning the Survey
Tons Processed (All): 148,000 TPY
Srze Range: 1,000-70,000
Annual Throughput Reported:
- Avg. Throughput (4-plants): 37,000 TPY
Materials Recycled:
- Avg. Recycled Quantity (All):36,500 TPY
- Ave. Percent: 99.5%
Comment on 2004 Inerts Crushing
Data. . . .re: Asphalt Pavement
Est. Baseline: 155 million Tons
"Rough" Est. of Concrete vs. Asphalt:
- Concrete 85-90% of total
- Asphalt 10-15% of total
Rough Estimate of Throughput:
Note: the above asphalt numbers do not include the highway millings
and contractor's specific full-depth removal project work of whi<
"total" for these activities is estimated by the National Asphalt
Pavement Association's (NAPA) to be an estimated 90 million TPY by
their industry association, with greater than 80% or 73 TPY recycled).
B-15
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But Is There Even More?
Z500 Crushers x 70%= 1750
Thank You
1600 hours per year
Grand Total: 280,000,000 tons per year
And that is only recycled, not generated
William Turley
630/585-7530
turley(5)cdrecycline.or£
www.cdrecycline.ore
B-16
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Status ofNDA Demolition
Debris Generation
& Recycling Survey Evaluation
Presentation to:
National Demolition Association
Presentation by:
Robert H. Brickner, Sr. Vice President
Gershman, Brickner & Bratton, Inc.
8550 Arlington Boulevard, Suite 203, Fairfax, VA 22031
1-800-573-5801 / Fax: 703.698.1306
SSK^itefei^SSi
September 24, 2005
Status of Survey Responses
555 NDA Members were sent the Survey
105 NDA Members in the USA returned
their Survey (2 more from Canada)
Almost 20% Level of Participation
Summary of Returned Surveys
Re: inquiries about Company's
decisions to Recycle
-100% of Surveys responded to at
least part of the questions
- Questions response & the GBB
Rating:
Strongly Agree = 1
Agree = 2
Neutral = 3
Disagree = 4
Strongly Disagree = 5
Company's Decision to Recycle
Average Rating of Survey Responses
What effects your Company Decisions
5a. Recycling Saves Money
5b. Recycling Improves Demo Company Image
5c. Recycling is Required by Law
5d. Recycling is Required by Contracts
5e. Readily available markets for C&D recyclables
5f. Employees willing to recycle C&D wastes once
trained
5g. Subcontractors willing to recycle C&D once trained
5h. Established waste disposal practices can change
w/o major difficulty to include C&D recycling
5i. C&D recyclables can be economically transported to
recycling facilities
Avg.
Rating
1.8
1.8
3.0
3.2
2.9
2.2
2.6
2.8
2.6
Methodology of GBB
Allocation of Survey Data
Example: Demo Generation Reported
-100 Tons per Year (TRY)
Split of Work in CA - 90% = 90 Tons
Split of Work in NM - 10% = 10 Tons
|pSummary of Members Survey Data
/ (Demo Generated in States > 400,000 TRY)
State (No. of
Surveys)
CA (1 9)
FL(7)
TX(5)
NJ(6)
MM (5)
OH (8)
IL(8)
WA(4)
Other 42 States
Total
Demo Generated
(TRY)
4,578,251
2,452,572
1,506,304
1,340,453
739,433
561,994
549,090
477,668
3,550,194
15,786,627
% of Total,
by State
29.0%
15.5%
9.5%
8.5%
4.7%
3.6%
3.5%
3.2%
22.5%
100%
B-17
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^'Aggregation of Recycling Data
/ (Survey's of States > 400,000 TRY reported)
State
CA(19)
FL(7)
NJ(6)
TX(5)
MN(5)
WA(4)
IL(8)
Other 43 States
Total
Demo Recycled
TRY
4,110,000
2,213,000
965,000
745,000
567,000
437,000
407,000
2,148,000
11,590,000
% Recycled
in the State
90%
90%
72%
49%
77%
86%
74%
19%
73% (Nationwide)
'Summary of Materials Recycled
Material
Concrete
Wood
Brick/Block
Metals
Sheetrock
Asphalt Pavement
Other Materials
Mixed Stream
Total
Total Amount
Recycled, TRY
6,845,000
350,000
510,000
940,000
45,000
2,675,000
125,000
100,000
11,590,000
% Recycled
of total TRY
61.2
3.1
4.5
8.4
<0.5
23.9
1.1
<1
Identified Project Sources
(Percent of the Waste Material)
Structural/Buildings... 80.0%
Bridges 1.5%
Other 18.5%
Review of Demo Waste Generated
(by Gross Sales of Company)
Sales (No. Surveys)
< $2 million (36)
>$2mil <$5 mil (28)
>$5mil<$10mil(25)
> $10 million (16)
Avg. TRY
Generated
48,083
96,203
254,401
634,412
Est. of Current NDA Members
(%, by Gross Sales Volume)
Annual
Sales
< $2 million
>$2mil <$5mil
>$5mil <$10mil
>$10 million
Total
Est. % of
Membership
40
25
25
10
100
Est. Number
of NDA
Members
222
139
139
55
555
Est. of Annual NDA Member
Demolition Waste Handled, Tons
Est. Number of
NDA Members,
by Sales Range
222 (< $2 million)
139 (>$2mil<$5mil)
139 (>$5mil<$10mil)
55 (>$10 million)
Total
Avg. Tons
Generated,
by Sales Range
48,083
89,077
200,843
634,412
Est. of TOTAL
Demolition Waste,
by Sales Range
10.7 million
12.4 million
27.9 million
34.9 million
85.9 million
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National Demo Waste Estimate NDA
Members vs. Non-Members
Key Assumption:
- NDA opined that members handle 75% of
the National Demolition Waste Marketplace;
therefore, GBB assumed NDA Members
handle 75% of the Demolition Waste stream
Total National Demolition Waste
estimate calculated as follows:
- If NDA Members generate 85.9 million TRY
and are 75% of the marketplace
- Total USA generation @ 114.5 million TRY
- Thus, non-NDA Members control 28.6
million TRY within the Demo marketplace
B-19
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vvEFA
United States
Environmental Protection
k Agency
Office of Resource Conservation and Recovery
EPA530-R-09-002
www.epa.gov/epawaste
March 2009
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