I just tore out a bedroom to install new electrical wiring and get rid of the soft tretex boards. I then noticed that the house basically lacks insulation and this needs to be addressed. I planned to frame 2 new walls 45 mm inside the current exterior walls and insulate in 2 layers, then OSB + gypsum. Interior walls 45 mm insulation + sheets. The question is whether to use plastic? If so, in the exterior walls and ceiling (cold attic) and against the floor (basement)? There was paper on the board wall before, maybe it should be like that again?
Feel free to share thoughts and tips for an inexperienced person =)
Feel free to share thoughts and tips for an inexperienced person =)
Well, not sure about the exact term, it's a wooden house with vertical exterior paneling from '47. No plastic before and with poor ventilation, maybe it does more harm than good?
Regarding the wall seen in the picture, is it enough to insulate the wall next to and above the window (not behind the radiator)? It would save me a lot of work to not have to move it.
Regarding the wall seen in the picture, is it enough to insulate the wall next to and above the window (not behind the radiator)? It would save me a lot of work to not have to move it.
I would probably have chosen a diffusion-open vapor brake in combination with eco-insulation that breathes (e.g., Vital, Feelingwood, or loose fill). This is because you likely have difficulty achieving an airtight house with plastic after the fact. The plastic, in such cases, does not fulfill its intended function.
Do exactly the same thing, and the carpenters I've talked to thought I should use a so-called diffusion-open vapor barrier and regular mineral wool insulation. Same in the ceiling, but there it will be eco-fiber in the attic.
It should be placed on the inside, between the insulation layers normally. In your case, I'm not sure since the vapor barrier can only be placed a maximum of 1/3 into the insulation thickness. For you, it ends up 1/2 into the insulation, which can cause condensation problems...
Here is Isover's vapor brake
http://www.isover.se/files/Isover_SE/Om_Isover/Kontakta_oss/Broschyrer_Bygg/Isover Vario SE.pdf
Here is Isover's vapor brake
http://www.isover.se/files/Isover_SE/Om_Isover/Kontakta_oss/Broschyrer_Bygg/Isover Vario SE.pdf
To try to summarize and get a grip on the whole thing.
Should I put paper on the board wall? There was paper before and it's pulling in now.
Then put up a vapor barrier outside the insulation in the whole room or just the additionally insulated walls?
Grateful for answers, it's a jungle for a newly minted homeowner.
Should I put paper on the board wall? There was paper before and it's pulling in now.
Then put up a vapor barrier outside the insulation in the whole room or just the additionally insulated walls?
Grateful for answers, it's a jungle for a newly minted homeowner.
If it's coming in now, it most likely means you don't have any wind protection on the outside. Are you planning to tear down the exterior and insulate there as well? If not, start by putting wind protection on the inside first, like a wind screen.