My partner and I are eager to build a house in the near future and are primarily considering building with Myresjö. Their exterior walls are constructed so that the plastic is directly behind the drywall. In today's society, it seems more and more common to have an installation layer (45 mm frame with insulation between drywall and plastic) to avoid "puncturing" the plastic.
Is there any way to avoid "puncturing" the plastic if you don't have an installation layer?
Otherwise, perhaps someone has experience with how energy use/indoor climate is affected after many holes in the plastic?
Thanks in advance!
Is there any way to avoid "puncturing" the plastic if you don't have an installation layer?
Otherwise, perhaps someone has experience with how energy use/indoor climate is affected after many holes in the plastic?
Thanks in advance!
Energy use and indoor climate are hardly affected by a punctured vapor barrier; what can happen is that moist indoor air finds its way into the wall, condenses when it cools down, and creates mold in the outer wall.
As long as you don't drive nails or screws into the wall or make other holes, the plastic remains sealed.
Personally, I don't think it's entirely sealed anyway, around electrical boxes and the like...
As long as you don't drive nails or screws into the wall or make other holes, the plastic remains sealed.
Personally, I don't think it's entirely sealed anyway, around electrical boxes and the like...
In our house from 84, I know more wisely that there are holes in the plastic in many places but have not seen any problems where I've opened up in connection with work. It might be a bigger problem in new houses with even thicker insulation.
Previously, it has been the case that Myresjöhus were supplied with external baseboard sockets on the outer walls (the electricity comes up from the floor in the floorboard, with an external channel about 20cm up to the outlet). I assume this is precisely for that reason.
There is a thread here about a problematic construction with this solution in a Myresjöhus:
http://www.byggahus.se/forum/el/99277-el-fel-eller-ok.html
Myresjöhus initially took no responsibility for the error, claiming it was correct, only when the electrical safety authority threatened to forcibly evacuate the building did something start to happen.
Then Myresjöhus continued with stubborn persistence to allow the same electrical contractor to continue making substandard installations for several more years (there are several threads about them here).
There is a thread here about a problematic construction with this solution in a Myresjöhus:
http://www.byggahus.se/forum/el/99277-el-fel-eller-ok.html
Myresjöhus initially took no responsibility for the error, claiming it was correct, only when the electrical safety authority threatened to forcibly evacuate the building did something start to happen.
Then Myresjöhus continued with stubborn persistence to allow the same electrical contractor to continue making substandard installations for several more years (there are several threads about them here).