Best Sound Insulation?
We have an exposed brick wall in a brownstone and we can hear perfectly the next door neighbors. We are decided to put sheetrock on the walls of the parlor floor. Any recommendation for sound insulation? Someone told me about Homasote, someone else about spray foam, Quiet Rock… Any experience? What is the best sound…
We have an exposed brick wall in a brownstone and we can hear perfectly the next door neighbors. We are decided to put sheetrock on the walls of the parlor floor. Any recommendation for sound insulation? Someone told me about Homasote, someone else about spray foam, Quiet Rock… Any experience? What is the best sound insulation material?
“Why dontcha go back to whatever country you came from”….
great answer, very intellectual…..
what happens if Mr. White was born here?????
This is weird… when I bought and used green glue a couple years ago, it used to be 3 tubes per sheet was the recommended amount and 4 tubes per sheet was for best performance. Either I am not remembering it right, or the recommendation has changed.
I am sorry if I didn’t explain more clearly the type of wall we are talking about. I assumed that when I said “a mid 19th Century rowhouse” it was clear. On most of the right hand side of the building, the neighbor has the stairs and partially bedrooms in the front and the back. The stairs of the neighbor have plaster to the brick. I assume there are two bricks, one on our side and one on his side, but I don’t know since this is just an assumption. In any case, there are bricks and obviously no space between both buildings.
Is there anybody else who has done some type of sound insulation in a brownstone and could share the experience?
Thank you bugleg. Having done much of that testing myself, I can attest to that. In actuality, three tubes, while “optimal” isn’t recommended. Two tubes is the best with respect to cost efficiency and performance.
While one tube offers 70% of the damping of two tubes, three tubes offers perhaps only single digit increases over two tubes.
More is certainly not better.
GreenGlue recommends:
Applying 1 tube of Green Glue per 4’ x 8’ sheet will deliver about 70% of the performance of 2 tubes. Three tubes is optimal per 4’ x 8’ sheet will improve low-frequency performance around the primary resonance. We do not recommend using more than 3 tubes per sheet. If you use too much Green Glue, performance will decline.
http://www.greengluecompany.com/greenGlueApplication.php
Manufacture’s recommendation should trump internet rumors…
Don’t shoot the messenger. I’m sure you’re well aware of Brownstone construction, and that means there’s no standard. Not the same in all cases at all.
The poster did not in fact answer what the walls are made from. Single brick? Standard single or double? Airspace between? Furring + drywall or plaster on the other side? All of these things will point to a different solution.
Ted White:
You spent much more time pontificating than reading. insu123 answered your first question “What are your walls are made from?” in the original post – “exposed brick wall in a brownstone”. Why dontcha go back to whatever country you came from. Some folks on this blog actually know something about brownstones.
Still not enough information to determine a solution. See my post for some questions regarding what particular sounds you are able to hear.
Does your neighbor have their wall furred out and drywalled? This means they have established a small air cavity. This will act as an amplifier of some frequencies.
In any event, despite what some have advocated here, you won’t see much improvement adding damped drywall directly to a brick wall.
The building is a late 19th Century construction, a typical rawhouse. Right now I have just a exposed brick. Obviously, the joists are attached to the neighbor’s party wall and maybe the sound also travels through the beams…
What is the most cost effective solution? Is it really worth to go with Quietrock or a combination of other products is as effective or even more?