ThermaTech insulation system from Thermafiber, Wabash, Ind., is a predominately recycled system made from mineral wool fiber that will not support combustion and will not melt unless the temperature exceeds 2,000 degrees F. This loose-fill attic insulation product is designed to be moisture resistant, non-corrosive, non-toxic, asbestos free, sound absorbing, and non-supportive to vermin and mold/fungus.