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Author Topic: window plug basement - advice needed please  (Read 3086 times)


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window plug basement - advice needed please
« on: November 14, 2010, 07:07:30 PM »


We recently purchased an old home that has been renovated. The basement is finished and has a 12" thick basement wall (concrete block) finished with 5/8" drywall. The windows are two dual pane vinyl windows (STC 28) and one glass block window (w/ vent) (unknown STC).

The problem is loud barking dogs during the day that are approx. 100ft away. I can hear sound coming from windows so I guess I will start there first since the walls are likely not the weak point.

If I make a window plug with 2" closed cell foam backed with MDF, can I reasonably expect STC 40+?  The window sills will allow for a 6" airspace between the window and plug. If not, how can I achieve this? I'm trying to stay as inexpensive as possible.


Randy S

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Re: window plug basement - advice needed please
« Reply #1 on: November 30, 2010, 11:17:24 PM »

existing 28 STC windows/ 6" dead air space /2" ssp foam mat 25 STC.....Yes I would say you can get 40+ STC out of that system easily. Very nice.
Just make sure the windows are sealed air tight! and the plug is air tight as well.
Randy Sieg

Super Soundproofing Co
Ph. 760-752-3030