Insulation Terms

Asbestos- A fibrous mineral insulation used in older homes. Improves fire resistance. Not used in new construction as it is considered a hazardous substance according to the EPA. Use care when checking for asbestos. Recommend certified asbestos abatement contractors for removal or clean up.

Batting - Fiberglass insulation with paper or foil backing, supplied in a roll. Designed to fit between studs in wall.

Blown Insulation - Loose insulation material which is blown into spaces between walls, or in attic between rafters.

Fiberglass - A cotton like material consisting of glass and resin

Firestop - A fire resistant material used to impede the spread of flames in case of fire.

Foam Insulation - Polystyrene or other expanding foam which is sprayed into gaps or wall cavities.

Foam Board - Light weight board comprised of polystyrene foam and cut to fit between studs in wall cavities.

R Factor - A measure of the efficiency of insulation against heat or cold.

Vapor Barrier - A waterproof material that prevents warm moisture laden interior air from meeting cooler outdoor air and condensing.