Portland cement-bonded products are more durable and have exterior and interior applications. All inorganic-bonded products are highly resistant to fire and insects and other pests. Out of the mix. Scientists at the FPL test composite panels made from recycled wood and portland cement. Gypsum products, the most common of which is drywall, have a long history of recycling.
Conventional drywall is a gypsum panel that is wrapped with recycled paper.
The paper wrap gives the gypsum panel much of its strength. New drywall products are coming onto the market that use waste paper material in a different manner than wrapping. Fiberized waste paper is blended within the gypsum panel. Although taping the corner seams is still recommended, it is not required on the butt seams. Gypsum, which is typically mined is also being diverted from the solid-waste stream.