Acoustical Pipe & Duct Lagging
The dB Engineering Lag Series combines a loaded vinyl noise barrier with a fibrous glass scrim reinforced aluminum foil facing on one side. B-10 LAG is commonly used for wrapping noisy iron, steel, and plastic pipe, ducts, valves, and heat exchangers in a wide variety of indoor and outdoor applications. The entire series has excellent corrosion and outdoor weathering resistance, high strength and excellent conformability. The reinforced foil facing readily accepts a matching tape for quick and easy installation.
B-10 LAG is available in combination with a nominal one-inch thick (B-10 LAG/QFA-3) or two-inch thick (B-10 LAG/QFA-9) quilted fiberglass decoupler to form a tight fitting "floating" noise barrier. The quilt decouples the loaded vinyl barrier from the noise emitting surface achieving greater noise reductions. The one-step installation of decoupler, barrier, and outer jacket offers substantially lower installation costs. The composite combination is also designed to provide thermal insulation to reduce energy consumption.
|Barrier Backed composite, a reinforced loaded vinyl noise barrier with a quilted fiberglass absorber on one side
BBC composite products were used to wrap a pipe at a waste water treatment facility (shown to the right), resulting in a 15 db reduction in noise.