AVS Special Member
Join Date: Jul 2002
Location: Near Pittsburgh, PA
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Jlupo - I did not measure the attenuation... it obviously would vary depending on the frequency of the source material. I designed and built the theater as best as I could afford with an eye (and ear) towards keeping as much sound from escaping as possible.
One obvious concession was the door. It's a outside, steel clad door with full weather stripping. The treatment inside the door is more for looks than for sound containment. Having said all that, the door works tremendously well.
We can be in the rooms above the theater and we don't hear anything other than the occasional thump of the sub that sounds like far off thunder... So, for the money I think it was a good value... When I built the room, I knew that the door would be the weakest link and I built it so that I could either change the door or install a communicating door if I was unhappy with the sound containment. But, it has proven to be better than I thought it would be.
Concerning the thickness of the wall, yes that side of the theater was built with a double wall and the trim around the door frame is seperated by a 3/8" gap that is filled with flexible chaulking.... again trying to minimize the amount of vibration that gets passed on the the rest of the home.
As far as the performance of the Green Glue goes - I think the subject has been beat to death on this forum. If you want specific data I suggest you visit the GG website.