Insulate the wall towards the outside in the bathroom
Hey,
I'll write in english because no matter how hard i tried i couldn't get myself to find the right words to explain this in swedish . You can very well answer in swedish as i tend to understand whats being said .
Here goes ...
Got a cabin from the '60s and one bathroom wall is facing the outside . The cabin is built like a sandwitch of wood which in turn lets a lot of cold air radiating from that 1 wall and into the bathroom (the wall is still the old wooden wall and for some reason the only wall that has no insulation - no clue why...previous owner left it like that )
What i want to do :
-put up a wooden frame and fill it with 30mm styrofoam (cellplast) to avoid wind and cold coming in
-put drywall on top and paint it with moisture resistant paint .
The wall is across from the actual shower cabin so nowhere near or in risk of getting splashed with water .
Will the cellplast and drywall work there ?
I have read that normal drywall (gipsskiva) is ok in the bathroom and so is styrofoam as it withstands quite a bit of moisture .
I'll write in english because no matter how hard i tried i couldn't get myself to find the right words to explain this in swedish . You can very well answer in swedish as i tend to understand whats being said .
Here goes ...
Got a cabin from the '60s and one bathroom wall is facing the outside . The cabin is built like a sandwitch of wood which in turn lets a lot of cold air radiating from that 1 wall and into the bathroom (the wall is still the old wooden wall and for some reason the only wall that has no insulation - no clue why...previous owner left it like that )
What i want to do :
-put up a wooden frame and fill it with 30mm styrofoam (cellplast) to avoid wind and cold coming in
-put drywall on top and paint it with moisture resistant paint .
The wall is across from the actual shower cabin so nowhere near or in risk of getting splashed with water .
Will the cellplast and drywall work there ?
I have read that normal drywall (gipsskiva) is ok in the bathroom and so is styrofoam as it withstands quite a bit of moisture .
Bästa svaret
In princip your solution will work. However, for older wooden houses it is recommended to stick to material that function in a similar way as the original building materials. In this case it seems to be preferred to use an insulation that is hygroscopic, such as wood fibre sheets. See for example https://www.bauhaus.se/bygg/tak/isolering/trafiberisolering.
The thinnest sheet is 45 mm. If you do not have the space an alternative could be 3 semi-soft wood fibre boards (thickness 13mm). See for example https://www.bauhaus.se/poros-board-12mm.
Where solid wood work, i.e. no problem arise from moisture, these wood based material also work.
If there is draft through the outer wall it is necessary to stop it. Preferrably by "drevning" (swedish word - couldn't find any translation on the web).
The thinnest sheet is 45 mm. If you do not have the space an alternative could be 3 semi-soft wood fibre boards (thickness 13mm). See for example https://www.bauhaus.se/poros-board-12mm.
Where solid wood work, i.e. no problem arise from moisture, these wood based material also work.
If there is draft through the outer wall it is necessary to stop it. Preferrably by "drevning" (swedish word - couldn't find any translation on the web).
There was a bit of draft from the outside and i have managed to fix that with silicone where needed.
So consideint that air comes until the silicone through the wood sandwich i dont think i should be worried about moisture behind the pannels of cellplast or wooden sheets for that matter
How do those wood sheets work https://www.bauhaus.se/poros-board-12mm ? do i simply screw them in place over the original wooden wall (instead of the cellplast) and then put dry wall over and simply paint over them ?
Should probably work to use glue between the wooden sheets and the dry wall in order to get a more sturdy wall and thus maybe i can skip the wooden frame ,right ?
So consideint that air comes until the silicone through the wood sandwich i dont think i should be worried about moisture behind the pannels of cellplast or wooden sheets for that matter
How do those wood sheets work https://www.bauhaus.se/poros-board-12mm ? do i simply screw them in place over the original wooden wall (instead of the cellplast) and then put dry wall over and simply paint over them ?
Should probably work to use glue between the wooden sheets and the dry wall in order to get a more sturdy wall and thus maybe i can skip the wooden frame ,right ?
Redigerat:
The semi-soft boards are a classic compromise. It has some insulation value, (but not as much as modern insulation materials), it reduces draft, and it is easy to follow bent/curved walls such as log cabin walls. Also, it do not take much of the valued floor area. It is possible to put up wall paper (or paint) directly, but due to the semi-soft material it is sensitive to hard and sharp objects crashing in to it. The surface gets harder with a layer of dry wall on top. It ought to be possible to skip the frame but maybe the joints between the dry wall boards will crack in time.
The more layers of the semi-soft boards the better insulation of course.
The more layers of the semi-soft boards the better insulation of course.
Yes. (Nailing is also possible.)CatP skrev:
It is possible, but if you get a damaged surface (cracked board) it will not be like a walk in the park to replace it...
Thank you so much for the help and ideas !