In many ways, mineral wool is a superior insulation product. It has a higher R-value per inch compared to fiberglass, about a 22-37% higher R-value. It contains 70% recycled material, making it a greener product than fiberglass at 20-30% recycled material. Mineral Wool is available in various forms: – Insulation Blankets with knitted wire mesh – Rigid Insulation Boards – Insulation Pipe Sections