Hello,
I am building a small house on wheels on a sturdy chassis, a bit like a site hut but more pleasant. I will be insulating with ecological insulation (flax from isolina) and in the walls, it's outer panel-air gap-wind barrier-insulation-vapor barrier (some special one that isolina had)-inner panel. But how should it look in the floor?
As far as I understand, you can skip the vapor barrier here, but where should the wind barrier be placed?
As I guess, it should look like this (from underneath): subfloor (oil-hardened board/masonite)-insulation-wind barrier-floor. Or should the barrier be inside the masonite?
Grateful for an answer!
I am building a small house on wheels on a sturdy chassis, a bit like a site hut but more pleasant. I will be insulating with ecological insulation (flax from isolina) and in the walls, it's outer panel-air gap-wind barrier-insulation-vapor barrier (some special one that isolina had)-inner panel. But how should it look in the floor?
As far as I understand, you can skip the vapor barrier here, but where should the wind barrier be placed?
As I guess, it should look like this (from underneath): subfloor (oil-hardened board/masonite)-insulation-wind barrier-floor. Or should the barrier be inside the masonite?
Grateful for an answer!
The wind barrier is supposed to prevent wind from blowing into the insulation, hence the name 
So, in the floor, the wind barrier should be under the insulation.
But if the hardboard, which you have as the bottom layer, is well installed so it seals against drafts from below, no wind barrier/wind fabric is needed there.
However, I would probably put a vapor barrier in the floor as well, unless a plastic mat is going to be the surface layer anyway.
So, in the floor, the wind barrier should be under the insulation.
But if the hardboard, which you have as the bottom layer, is well installed so it seals against drafts from below, no wind barrier/wind fabric is needed there.
However, I would probably put a vapor barrier in the floor as well, unless a plastic mat is going to be the surface layer anyway.
Okay! Does it work with wind barrier even on the underside of the floorboards instead of vapor barrier? I mean on both sides of the insulation?
This one I meant: http://www.bauhaus.se/isolina-luftsparr-130cm.html#full-description
This one I meant: http://www.bauhaus.se/isolina-luftsparr-130cm.html#full-description