Serious Materials.

Made primarily from post-industrial waste and utilizing a natural drying process that avoids the energy required for calcining and oven-drying used in gypsum products, gypsum-free EcoRock contains 80% recycled material and requires 80% less energy to produce, says the company. The products fiberglass face and core materials resist mold without chemical treatment. It carries Greenguard and Cradle To Cradle Gold certifications and ULs Environmental Claims Validation. 800.797.8159. http://www.seriousmaterials.com/.