Which form of fiberglass insulation is commonly supplied as rigid boards for use in walls and ceilings?

• A. Board
• B. Pre form
• C. Wrap
• D. Batt insulation

Answer: (A)

Fiberglass insulation comes in several forms, and the one that is supplied as rigid panels is board insulation. These solid panels are designed to be installed as a continuous, rigid layer in walls and ceilings, which helps minimize gaps at joints and around penetrations for better thermal performance. You cut the boards to fit and fasten them in place, often with a facing or foil to provide a vapor barrier. In contrast, batt insulation is the flexible blanket that fits between studs, wraps refer to protective coverings rather than insulation form, and pre form isn’t a standard term for fiberglass insulation.