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Author Topic: Soundproofing two windows from nearby highway  (Read 3608 times)


  • Guest
Soundproofing two windows from nearby highway
« on: June 27, 2017, 09:54:46 PM »

imgur com / 0GNYwX0 We have two identical windows spaced about 2 feet apart with a very noisy highway right behind the treeline. It is I-285 in Atlanta. Trucks are required to take this bypass if they are coming through Atlanta, so we get a lot of rumbling noise which is especially disturbing in the evenings.

A contractor offered to install two interior mounted Schwinco windows (claims 38 STC) for about $2000 that he says will look something like this. imgur com / 9QhNG2e

How will that fare against a 3/8" interior acrylic window insert? Are there any other options for noise reduction we have not considered?

The exterior wall of the building is brick, so I suspect most of if not all of the noise should be entering through the windows.

Randy S

  • Guest
Re: Soundproofing two windows from nearby highway
« Reply #1 on: July 07, 2017, 04:24:39 PM »

depending on how much of an air gap you can achieve would dictate the overall STC of the magnaseal system.

Randy S.