Foam Insulation Wall Cavity Soundproofing... - Building & Construction - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Building & Construction


Thread Tools Search this Thread
Display Modes
Old 09-03-2009, 03:06 PM   #1
Join Date: Sep 2009
Posts: 1
Rewards Points: 10

Foam insulation wall cavity soundproofing...

To sound-proof between rooms I'm going to drill down between studs from the attic and put a foam insulation like "Great Stuff" down into each wall cavity. Does anyone have experience doing this?

I'm wondering how much should go down into a standard 16" wide cavity? They say to fill to 50%, but since I can't see down into the hole to see how much that is, I was hoping somebody has done this before... and I don't want to push the drywall away from the studs due to over-filling.

Any suggestions would be great!
CGehlhausen is offline   Reply With Quote
Sponsored Links
Old 09-03-2009, 04:56 PM   #2
WaldenL's Avatar
Join Date: Jan 2009
Location: Nassau, Long Island, NY
Posts: 349
Rewards Points: 268

Great Stuff in a stud cavity? How many cans are you planning on buying?
WaldenL is offline   Reply With Quote
Sponsored Links
Old 09-03-2009, 05:26 PM   #3
Join Date: Dec 2008
Location: Wilmington, DE
Posts: 3,118
Rewards Points: 2,000

Expensive, and if you get the red can(expanding foam), you could blow out the drywall. Not really a good idea.
Just Bill is offline   Reply With Quote
Sponsored Links
Old 09-05-2009, 03:20 PM   #4
Join Date: Aug 2009
Posts: 14
Rewards Points: 12

I doubt that this would be effective at soundproofing. For this purpose fiberglass is the usual choice. Rock wool or mineral fiber is used in most recording studios - you could cut channels in your drywall to squeeze it in between studs, then patch. If you want to improve sound isolation, you could hang an additional layer of drywall - isolate the two layers with a bead of acoustical adhesive (or at least use liquid nails), mud, tape and finish. Also be sure to seal _any_ openings between the two walls - at the base, in the outlet and switch boxes etc. This is often the biggest source of a sound leakage problem.

This company makes a number of acoustical products.

Good luck.
pianodude is offline   Reply With Quote
Sponsored Links

cavity , foam , insulation , soundproofing , wall

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Installing Rigid Foam Insulation and Drywall raheel Drywall & Plaster 3 02-16-2009 06:07 AM
Foam Insulation in Basement - evicting the rats MacGuyveur Building & Construction 3 08-26-2008 10:37 AM
Best way to affix 2" foam board insulation to foundation wall BigJimmy Building & Construction 12 07-21-2008 11:50 AM
Noisy vibration of A/C lines in wall cavity tima2381 HVAC 2 07-17-2008 05:17 PM
no insulation behind wall boddah Remodeling 1 03-25-2008 03:11 PM

Top of Page | View New Posts