Description Residential R-Value glass wool blanket is lightweight,Website:://.unitedglasswool.com, flexible roll of mineral wool, designed to be used as an absorbent layer in timber and metal stud partitions and in separating walls and floors with thin and long inner fiber, once installed, the high performance insulation blanket and acts as a highly effective barrier to heat flow, keeping your building cool during hot weather and conserving the cool air indoors. And R-Value Blanket is a specialist under-metal roof insulation designed for use in residential and commercial building. It can be laminated with anti-condensation facing foil.AVAILABLE FORMS Un-faced or Plain rolls and blankets.Faced is available with Aluminum foil-Scrim-Kraft (FSK), High strength polypropylene based