Description  Residential R-Value glass wool Batts are adapting the advanced centrifugal blowing process,Website:://.unitedglasswool.com, are soft, fine, waterproof and fireproof with good rebound elasticity (veneering like reinforced aluminum foil can be applied), providing an ideal heat preservation and sound absorption material for steel structure constructions.AVAILABLE FORMS  Un-faced or Plain batts.  Faced is available with Aluminum foil-Scrim-Kraft (FSK), High strength polypropylene based