Now CERTIFIED asthma & allergy friendly® and Verified Healthier Air™! Only available at General Insulation.

ALLEY WRAP B fiberglass blanket insulation is a thermal and acoustical insulation product made from highly resilient, inorganic glass fibers bonded by a bio-based technology. It is available unfaced or with a multi-purpose foil-scrim kraft (FSK) jacket. Vapor retarders have a 2″ (51 mm) stapling flange on one edge, and the factory-applied facing assures uniform quality.