NOISEMASTER® Acoustical Pipe and Duct Lagging is excellent for wrapping pipe, duct work, valves and heat exchangers in a variety of indoor and outdoor applications. Product construction consists of a 1 lb. per square foot loaded vinyl septum with reinforced aluminum foil facing material laminated to one side. Laminated to the opposite side of the loaded vinyl septum is a 2 lb. density per cubic foot 1" or 2" nominal thickness fiberglass with a non-woven fiberglass scrim facing material. Noisemaster Pipe and Duct Lagging weighs 1.3 lbs per square foot and is available in custom cut or 4' x 30' rolls.