Any ideas on sealing electrical boxes after the drywall is up?

I am doing 1/2" DD and GG on my HT walls, and didn't seal the outlets up before the Drywall went up.... Any suggestions to fix this mistake?

I'm now a bit paranoid about loosing my soundproofness......

P

Just use all the same strategies as if you were trying to stop a drafty outlet on an outside wall.

Not sure if this is up to code, but what about using fireproof caulk at the points of entry in the box and around the edges between the box and the drywall?

Has anyone tried the "foam" spray in behind an outlet after drywall? Would you just cut the power and wait for the foam to harden then turn it back on? Would make an excellent seal thats for certain. Not sure if poses a fire hazard tho, I dont think it does once it cures, I believe its even fire retardent (sp)

Has anyone tried the "foam" spray in behind an outlet after drywall? Would you just cut the power and wait for the foam to harden then turn it back on? Would make an excellent seal thats for certain. Not sure if poses a fire hazard tho, I dont think it does once it cures, I believe its even fire retardent (sp)

They do make a fire block foam spray. The stuff looks bright orange and they have it sprayed over the entire electrical boxes in my garage that I can see.

Those cans would make a very nice air tight seal around the elec boxes.

They do make a fire block foam spray. The stuff looks bright orange and they have it sprayed over the entire electrical boxes in my garage that I can see.

Just be careful not to over do it and it should work.

http://www.adventuresindiy.com/http:/www.adventuresindiy.com/home-improvement/conservation-2/insulating-outlet-boxes-with-spray-foam

Has anyone tried the "foam" spray in behind an outlet after drywall? Would you just cut the power and wait for the foam to harden then turn it back on? Would make an excellent seal thats for certain. Not sure if poses a fire hazard tho, I dont think it does once it cures, I believe its even fire retardent (sp)

this will work well and up to code as I know it. I think you can buy foam just for
this look for some thing with a fire rating.

How would you typically go about sealing the outlets before the drywall went up I havent read anything on that yet.

Any ideas on sealing electrical boxes after the drywall is up?

I am doing 1/2" DD and GG on my HT walls, and didn't seal the outlets up before the Drywall went up.... Any suggestions to fix this mistake?

I'm now a bit paranoid about loosing my soundproofness......

P

and also I don't think you made a mistake as soundproofing goes you won't loose a lot but if it makes you less paranoid :rolleyes:

How would you typically go about sealing the outlets before the drywall went up I havent read anything on that yet.

putty pads (http://www.acousticalsolutions.com/products/sealants/putty_pads.asp)

You can find them cheaper here... clickie (http://store.nexternal.com/shared/StoreFront/default.asp?CS=ebuilding&StoreType=BtoC&Count1=306286036&Count2=223426461)

Matter of fact I just placed an order for a bunch. I should get them by the end of the week.

Great stuff? Is it flamable after it dries?

What about just finding way to get accoustical caulk in the holes of the box??

Cool thanks for the info, I learn like 10 things a day here.

Great stuff? Is it flamable after it dries?

What about just finding way to get accoustical caulk in the holes of the box??

Only use the type that is rated for fire blocking. It is sold in HD near the caulks. The foam will be bright orange, NOT the normal yellowish color.

How the heck do u guys find these stores! Thanks Cathan/Big, very interesting site with lots of good stuff.

Thanks for the info guys...

I'm going to use this DAP product around the outlets...., not orange in colour, but safe for ..."It can be used for touch ups and spot insulation, as well as for perimeter sealing
of electrical switches and outlet boxes. Not for use inside of electrical switch and outlet boxes."

see:
http://www.dap.com/product_details.aspx?BrandID=19&SubcatID=4
and
http://www.dap.com/docs/tech/00077346.pdf

Peter

Another vote for the putty pads. They'll give you a lot more mass than just plain caulk and a TON more than the lightweight, spray in foam insulation which equates to better bass leakage control.

Bryan

Is it okay to use a regular "duct seal" putty, or does it have to be a firestop putty?

Don't forget you can add these. Plus you can stick child proof caps on all the outlets that you won't be using.

http://images.lowes.com/product/077578/077578038209.jpg

http://www.babysupermall.com/main/products/kdc/kdc93600-big.jpg