Sound Seal's Pipe and Duct Wrap is a flexible 1 lb or 2 lb per square foot reinforced foil-faced faced mass loaded vinyl noise barrier. It is typically used to wrap noisy pipes and ducts to block the noise that transmits through the walls of the pipe or duct as air or other contents move through it as well as to increase the sound absorption in the cavity. The reinforced foil-faced exterior serves as a protective jacket for indoor or outdoor applications. It is easy to cut, wrap and install with matching lag tape. Sound Seal's Pipe and Duct Wrap is a Class 1 fire-rated material and is available in rolls 54'' wide x 30’ long.