Foil-Faced Glass Wool Insulation (also known as fiberglass blanket insulation), featuring a bright yellow fibrous glass wool core bonded with a reflective aluminum foil backing on one side. It is widely used for thermal and acoustic insulation in roofs, walls, and HVAC ducts.Material: Flexible yellow glass fibers backed with a reflective foil facing.Primary Uses: Heat insulation for roofs and ceilings, acoustic soundproofing, and duct wrapping.Handling Note: Direct contact with glass wool fibers can cause skin irritation; protective gloves and long sleeves should be worn during installation