American Rockwool is committed to providing insulation products that use only recycled or sustainable materials. Our products are made of recycled slag which is a byproduct of the steel industry in the production of steel, and trap rock a naturally occurring mineral that is mined out of San Antonio, TX.
These minerals are melted together and spun out in a spinner. As the molten material is being spun out high velocity air is forced across fiberizing the material much like the naturally occurring process when ocean winds blow across molten lava forming hair like fibers known as Pele’s hair.
