[1] Debris varies in composition, but the major components, by weight, in the US include concrete, wood products, asphalt shingles, brick and clay tile, steel, and drywall.
[2] Before demolition debris is extracted, contamination from lead, asbestos or other hazardous materials must be resolved.
[1] Reused wood can eliminate the need for full-size new lumber if used for smaller building components.
Repurposed or recycled wood can be used in pathways, coverings, mulches, compost, animal bedding, or particleboard.
Once the gypsum is depapered, it can be added in cement production, as a soil amendment, used in aerated composting, or recycled into new drywall.