Roxul Mineral Wool Insulation is made of mineral wool that is both chlorofluorocarbon (CFC) free and hydrochlorofluorocarbon (HCFC) free. Roxul mineral wool is composed of two parts: basalt (volcanic rock) and a minimum of 40 percent recycled steel and copper by-product called slag.
The recycled slag and volcanic rock are melted down into a mix. The mix is then spun together to make fibers. The fibers are then bound with raw wool to make mineral wool. The mineral wool is cured and cut into insulation.
Roxul Mineral Wool Insulation has several superior properties, making it a high-grade insulation product with no volatile components. Because Roxul Insulation is made from natural materials and wool, it repels water, resists rot, absorbs sound, and resists burning and smoking from fire – its melting point is beyond 2100 degrees Fahrenheit.
Roxul Insulation is also easy to handle and custom cut, making it easier to get a perfect fit in any type of space. It’s this ideal fit that makes insulation an effective energy saver year round.
Roxul Mineral Wool Insulation is different from fiberglass insulation. One of the most notable differences is how each type of insulation performs during a controlled fire demonstration. Roxul Insulation remained intact whereas the fiberglass insulation disintegrated. Watch the fire demonstration here.
Another notable difference between Roxul Mineral Wool Insulation and standard insulation is structural makeup. Roxul Insulation has a denser structure compared to other types of insulation. The denser structure reduces the flow of air and the transmission of sound.