Hi, in a 60s house there is a ventilated basement wall (concrete block + air gap + lightweight concrete insulation/inner wall). The inner wall stands on blocks at the joints cc 60 cm, with a gap into the air space, I assume ventilation was the idea here. (The outer wall was later insulated on the outside in connection with drainage). (We have a concrete slab on grade that is uninsulated, hence the ventilated floor).
We are now going to install a ventilated Subfloor floor, which requires sealing everything including the gap between the inner wall and the floor, and only having air supply through separate vents in the floor.
1. My question is how best to combine these two solutions? One might consider opening for circulation with some vent a bit up on the wall.
2. In addition, I wonder when we tear down the wallpaper from the lightweight concrete wall (which the inspection company condemned as diffusion-tight), if we need to worry about the filler beneath the wallpaper. Can you somehow see or determine if this filler is diffusion-open? If so, how?
I have a picture I tried to attach but for some reason, the iPad can't do it. I'll get back to you.
We are now going to install a ventilated Subfloor floor, which requires sealing everything including the gap between the inner wall and the floor, and only having air supply through separate vents in the floor.
1. My question is how best to combine these two solutions? One might consider opening for circulation with some vent a bit up on the wall.
2. In addition, I wonder when we tear down the wallpaper from the lightweight concrete wall (which the inspection company condemned as diffusion-tight), if we need to worry about the filler beneath the wallpaper. Can you somehow see or determine if this filler is diffusion-open? If so, how?
I have a picture I tried to attach but for some reason, the iPad can't do it. I'll get back to you.
