Mineral wool is a common material that is often used for loose-fill or blown-in insulation. It is usually made from naturally derived materials like basalt rock, chalk, diabase, and iron ore waste, which are heated at very high temperatures before being spun into fibers. Mineral wool is naturally fire resistant and not conducive to mold growth, making them ideal to use in homes. Pacific Insulation Supply carries a wide selection of mineral wool insulation products from some of the country’s best brands. To receive a free quote, contact us now.