Known also as "fibreglass insulation", glass wool is a popular choice for thermal and acoustic insulation in residential as well as commercial buildings.Made from outfields of spun glass fibre, this material is light, flexible, non-flammable and fatigue-resistant. By trapping air pockets glass wool provides efficient insulation, slashes worldwide carbon dioxide output for heating along with saving Americans thousands of dollars in homeowners' expenditures. It also acts as an invaluable sound absorber capable of curtailing noise pollution for buildings within its reach. The material's versatility means that it can be used on many fronts--as insulation for walls and ceilings, year after year contributiing to a home's energy efficiency as well as its occupants' comfort.