EI30 walls

[kulle]

but..... The discussion was that you would avoid having to install studs, the insulation you are linking to is regular stud board.

 

[Rolle85]

But I should use studs in that case since the foam plastic is as flammable as someone wrote...

For example, what kind of insulation boards are these, it's probably glass wool? Is there a suitable stud if you want insulation that is maybe 40mm thick?

 

[Rolle85]

Maybe this?
https://www.hornbach.se/shop/ISOVER...glasull-Easy-45/6203039/artikel-detaljer.html

 

[bossespecial]

Is it an existing cabin you’re going to fix up?

 

[Rabbithole]

Use studs, since you already have a wall it is super easy. Just nail them into the existing wall, add insulation, and screw the drywall into the studs.

 

[Rolle85]

Ok.
The house is not yet built, no, the house comes as a complete kit.

The wall parts: wooden wall, studs, glass wool, plaster, wallpaper. Shouldn't I have a vapor barrier somewhere?

 

[Rabbithole]

Well then, it's just as well to build a proper rule wall from the start.

 

[useless]

Shouldn't I have a vapor barrier somewhere?

Not if it is going to be cold for parts of the year. Additionally, there is so little insulation. However, you should have a wind barrier inside the wooden wall.

 

[Rolle85]

The house is only used during the summer weeks. Therefore, the wall is constructed in the following order:

Wood wall, wind barrier, studs with insulation in between, plasterboard, wallpaper.

 

[bossespecial]

Do you have a link where one can see what the cabin looks like? Is the cabin, according to the supplier, designed to be insulated? The insulation should be on the outside of the homogeneous frame. On top of this, wind barrier, air gap, and facade.

 

[Rolle85]

https://sorselestugan.se/produkter/fritidshus/fritidshus-30/

 

[bossespecial]

There wasn't much help from the manufacturer on how to insulate their cabins. You might want to call the support team at the larger insulation manufacturers to discuss what solutions are required to achieve EI30. Looking at different solutions, it is stated that at least a 70mm stud and at least 2 layers of boards on both sides are required. Outwards, you already have a fairly thick wood frame that could very well achieve the same level as 2 layers of boards. But give them a call, they can probably calculate based on your conditions.

 

[olof77C]

haven't had the energy to read through the whole thread, but if you're only after EI30, many suggestions feel completely unnecessary.
first check that your wall doesn't already meet EI30, wood is incredibly good from a fire resistance standpoint.
otherwise, complement with a minerat directly on your wall and you're set.

 

[Rolle85]

Yes exactly, but I was thinking of putting insulation in between and there I don't know how to insulate the existing wooden wall.

 

[olof77C]

steel studs insulate with mineral wool between them, then vapor barrier, then surface layer.