PROPERTIES DESCRIPTIONS

Drywall is paper facing surrounding a core of pure gypsum.

Gypsum wallboard can be made using 100% recycled kraft paper linen, 10-15% recycled gypsum.

18% recycled gypsum, 12% post-consumer; 100% recycled paper backing; recyclable

Gypsum is composed of 79% calcium sulfate and 21 % water.

To be recovered from demolition, special procedures to reduce contamination levels are required.

Select finishes and surface component that can be removed when gypsum boards have to be recycled.

Order drywall in the right dimension to minimize cut-off waste.

Only new and clear drywall can be recycled. Uses of recycled drywall are in agriculture, as fertilizer amendment, or remanufacture of drywall.

RECYCLED gypsum can be incorporated back into new wallboard products or used as agricultural fertilizer amendment.

 PROS

Recycled gypsum can be used in the production of new wallboard.

It can be crushed and reused for agricultural soil amendment. A new technology, developed from a Washington company is to process waste gypsum into a value-added light-weight, nonstructural building material, that can be used in interior wall applications or sound barrier walls.

 CONS

Gypsum absorbs dust and contaminants. Can be not a cost effect to remove it.

Wallboard is made of 7% paper by weight. To be able to be reincorporate in new wallboard recycle material doesn't have to contain more than 2% of paper.

Some drywalls contain cellulose fibers and perlite on the matrix, which can become a problem for post-consumption recycle.