Electrical Al
Member
I was told that the 2011 code requires flanged boxes on all outside walls. They have insulated flanges to prevent air leakage. Any information on this?
Flange boxes
- Thread starter Electrical Al
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Rich Elec.
Senior Member
- Location
- Pennsylvania
Al,
This "sub-forum" category is reserved for "Proposals/Comments for the next NEC cycle." Which would be the 2014 edition.
You will probably get more responses if you post your question under a more suitable "sub-forum" category.
This "sub-forum" category is reserved for "Proposals/Comments for the next NEC cycle." Which would be the 2014 edition.
You will probably get more responses if you post your question under a more suitable "sub-forum" category.
- Occupation
- Licensed Electrician
I don't have an '11 codebook but this sounds like a possible local building code requirement.
Bigrig
Member
- Location
- Dayton, OH
Sounds like a building code requirement
Sounds like a building code requirement
This sounds more like a building code requirement (probably the IRC). If an air barrier is required it may not have to be at the interior drywall (called airtight drywall approach or ADA) which would require airtight boxes. The air barrier can just as well be at the exterior sheathing, or even at both locations (a belt and suspenders approach).
Sounds like a building code requirement
This sounds more like a building code requirement (probably the IRC). If an air barrier is required it may not have to be at the interior drywall (called airtight drywall approach or ADA) which would require airtight boxes. The air barrier can just as well be at the exterior sheathing, or even at both locations (a belt and suspenders approach).
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