Vapor proof barrier

[Rahim84]

When to use a vapor proof barrier? On all exterior walls ? And is it necessary on all types of wall boxes ?


Sent from my iPhone using Tapatalk

 

[Rahim84]

On all exterior wall boxes **?


Sent from my iPhone using Tapatalk

 

[Rahim84]

Okay guess nobody knows, I don’t see it in code. Maybe just a local thing


Sent from my iPhone using Tapatalk

 

[jap]

Okay guess nobody knows, I don’t see it in code. Maybe just a local thing


Sent from my iPhone using Tapatalk

a local thing to do what?

JAP>

 

[jumper]

a local thing to do what?

JAP>

Ditto. Worked in NC and I do not understand question.

 

[dkidd]

I think it is an energy code requirement.

 

[jumper]

I think it is an energy code requirement.

To do what?

 

[dkidd]

Table R402.4.1.1 (2012 IECC). Air Barrier and Insulation Installation


International Energy
Conservation Code - IECC
This code began in 2009.
It is now being enforced!
On Page 31 it requires
All electrical boxes
on exterior walls
must be air tight!
Most states have adopted this code!!

http://www.energyblock.com/

 

[Rahim84]

like this


Sent from my iPhone using Tapatalk

 

[jumper]

Table R402.4.1.1 (2012 IECC). Air Barrier and Insulation Installation


International Energy
Conservation Code - IECC
This code began in 2009.
It is now being enforced!
On Page 31 it requires
All electrical boxes
on exterior walls
must be air tight!
Most states have adopted this code!!

http://www.energyblock.com/

Okay, thanks.

Does this apply to non resi also?

 

[jap]

like this


Sent from my iPhone using Tapatalk

So that's what you rough in for an outside receptacle?

JAP>

 

[jap]

or, are you talking about all "Indoor" outlets located on exterior walls?

JAP>

 

[Rahim84]

Yes, indoor outlets on exterior walls


Sent from my iPhone using Tapatalk

 

[Cavie]

I'm running away from that.

 

[kwired]

When to use a vapor proof barrier? On all exterior walls ? And is it necessary on all types of wall boxes ?


Sent from my iPhone using Tapatalk

Where is the building's general vapor barrier located?

If you have plastic film on interior sides of studs then every box on interior side of walls penetrates the vapor barrier.

if you have some other vapor barrier on exterior side of wall, which can include flash foam application to the inside of exterior sheathing, then you only penetrate vapor barrier wherever you put outside outlets in that wall.

As mentioned this is not NEC requirements.

 

[Rahim84]

Thank you


Sent from my iPhone using Tapatalk