 The dB
Engineering Lag Series combines a loaded vinyl noise barrier with a fibrous glass
scrim reinforced aluminum foil facing on one side. B-10aLAG
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-10aLAG is available in combination with a nominal one-inch thick (B-10aLAG/QFA-3)
or two-inch thick (B-10aLAG/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.
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