ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Strobing LEDs
by Bill Addiss - 10/07/22 09:45 AM
How's Florida doing with Hurricane Ian?
by Bill Addiss - 09/28/22 12:41 PM
Tough being a lineman's kid
by Bill Addiss - 09/28/22 12:39 PM
GFCI's pops in large numbers
by dsk - 09/26/22 04:35 AM
AFCI’s Revisited
by sparky - 09/24/22 09:58 AM
New in the Gallery:
240/208 to a house
240/208 to a house
by wa2ise, October 9
Now you know.
Now you know.
by Tom_Horne, September 7
Who's Online Now
0 members (), 33 guests, and 12 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#37658 05/01/04 09:50 PM
Joined: Apr 2002
Posts: 558
C
caselec Offline OP
Member
Soon we are going to be wiring a new 6000 sq. ft. home and today the owner told me he was going to use expanding foam insulation for the walls and ceilings. I have seen this used on This Old House but have never seen it used in my area other than to fill small holes and cracks. If any of the members here are experienced with this I would like know if there is any thing we need to watch out for when installing the rough. There are approximately 150-200 IC rated recessed lights but I guess since they are IC rated it is ok to completely encapsulate them with the foam. We normally use single gang switch rings for the voice/data/tv but I guess we will need to use 4sq or 4 11/16 boxes or it will be pretty hard stuffing the wires in the wall. [Linked Image] Any advice would be appreciated.

Curt


Curt Swartz
Joined: Jun 2003
Posts: 1,143
D
Member
Are your conductors Romex or in raceways? If they're the former, ya better have everything in there prior to the foam-in, and if it's raceways, you might want to "pre plan" any expansion for future potential (ceiling fans and the like), cause there ain't no fishin' in a foamed wall.

(BTW, I'm not sure if you'd have to derate for a complete encapsulation... somebody call Joe Tedesco!)


Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *
2023 National Electrical Code (NEC)
2023 NEC Now Available!
 
* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
togol
togol
NW In. USA
Posts: 421
Joined: September 2005
Top Posters(30 Days)
Popular Topics(Views)
297,826 Are you busy
228,538 Re: Forum
213,370 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5