How to handle vapor barrier when installing new electrical wiring?

[Ett fisk]

Hello!

I have a Myresjö house built in 2005 with ugly baseboard sockets for all the outlets along the exterior walls. This is probably because the house was built in modules with pre-made walls. The cables are currently routed through the floors and then up to these ugly baseboard sockets that I now want to replace with regular recessed wall outlets instead.

How should one handle the vapor barrier in the wall? I will need to run some flexible conduit and install new electrical boxes, etc. I'm also planning to install conduit for a surround system and recessed spotlights in the windows.

I assume I will need to make holes in the vapor barrier to do what I want. Is this okay? Is there any way to patch the vapor barrier? How do you manage where a conduit or electrical box goes through the vapor barrier?

Hoping for good help on this knowledgeable forum!

 

[useless]

There are no houses without various holes in the vapor barrier, so it shouldn't matter as long as you have working ventilation. You can tape a bit around hoses and boxes to avoid the largest holes.

 

[Johan456]

It's a bit risky to say that there shouldn't be any problems. If the house is airtight and pressure tested, and you 15 years later hear about various holes in the vapor barrier, you cannot rule out that there will be moisture-related problems. If the vapor barrier wasn't needed, it wouldn't have been used in the construction. If you want to be thorough, you should seal around every penetration.

 

[surris]

I cannot agree that there are no houses without holes in the vapor barrier. I have built several houses where we even taped holes from staples. The principle itself is that it should be 100% tight, so you should absolutely not just make holes and think it will be fine. If you make holes, seal them with age-resistant tape, tape where pipes and outlets break the vapor barrier.