Table 2-1 continued
Waste Material Demolition Source Construction Source
Metals, ferrous Structural steel, pipes roofing, flashing, iron, Same
 stainless steel
Metals, nonferrous Aluminum, copper, brass, lead Same
Paper/cardboard N/A Corrugated cardboard,
 packaging
Plastics Vinyl siding, doors, windows, signage, plumbing Same
Soil Site clearance Same, packaging
Wood, treated Plywood: pressure- or creosote-treated, laminates Same
Wood, untreated Framing, scraps, stumps, tops, limbs Same

 The amount of C&D waste produced in the United States depends on several

variables including:

* The extent of growth and overall economic development that will drive the levelof

 construction, renovation, and demolition;

* Periodic special projects, such as urban renewal, road construction and bridge

 repair, and unplanned events, such as natural disasters;

* Availability and cost of hauling and disposal options;

* Local, state and federal regulations concerning separation, reuse, and recycling of

 C&D waste;

* Availability of recycling facilities and the extent of end-use markets (Dolan et al.

 1999).

 The composition and quality of waste materials will vary greatly from building to

building. Any of the 16 categories of waste found in Table 2-1 is expected to be found in

a typical residential, commercial or institutional project. The physical composition of

building materials changes dramatically depending on the age of the project (for

renovation and demolition projects), resource availability and construction/demolition

practices used. There are three main factors that affect the characteristics of C&D waste: