Sound Seal’s Acoustical Lagging Reduces Noise Levels at Perkins School for the Blind

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Lower levels of sound conducive to improved learning at Perkins School for the Blind

Sound Seal, a leading manufacturer of commercial and architectural acoustic noise control products announced today that the Perkins School for the Blind in Watertown, MA, is using Sound Seal’s B-20 LAG/QFA-9 to reduce noise from a recent remodeling project.

The project included upgrades to the HVAC System. The new higher velocity system created increased sound levels caused by the air flow transmitting through the walls of the duct work.

A number of studies have shown that lower sound levels in classrooms are conducive to improved learning. A proper acoustical environment is especially important to the students and teachers at the Perkins School for the Blind.

An internet search by design engineers hired by the school, for “acoustical duct lagging” led to the website and Sound Seal acoustical products.

Sound Seal offers a line of acoustical lagging products specifically developed to wrap the outside of the duct work to reduce the noise that transmits through the light gauge sheet metal duct work walls. Seeking maximum sound attenuation Sound Seal application engineers selected B-20LAG/QFA-9.

Sound Seal’s B-20LAG/QFA-9 is a composite product that features a flexible two pound per square foot reinforced foil-faced loaded vinyl noise barrier bonded to our 2” thick fiberglass sound absorber.

About Sound Seal
Sound Seal is a leading manufacturer of commercial and architectural acoustic noise control products offering the widest product selection in the soundproofing industry. Sound Seal has stayed true to this vision and consists of three product lines: The Industrial Division which deals with in-plant, HVAC and construction site noise control, the Architectural Division which handles interiors and the Impacta Flooring Division which deals with floor underlayments. For more information visit and


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Tony Douglas
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