Hello, we are changing the surface layers in the bedroom where the walls are exterior walls. I understand that one should install a vapor barrier inside the gypsum. I have also seen that the barrier should be placed a bit "inside" the insulation to avoid puncturing it with nails from pictures, etc. But how do you manage to place it inside the insulation? Then you would have insulation on both sides, and that's not good, right? Buggaren
Thanks, no additional insulation. Changing the surface layer, which currently is building board (type hard Masonite), to gypsum. And I don't think there's a vapor barrier today. But I'm not sure. Thought it couldn't hurt to install one, but maybe it becomes too airtight?Larsa said:
Now we have torn down panels and inside there is a thin plastic. Not age-resistant plastic. The builders say this plastic should remain. It mostly looks like it was there to keep insulation in place. And not particularly tight. But maybe better to remove it?
Well, it's hard to say. They used plastic that wasn't of the same quality as today several years ago.
I would say if there is plastic originally, keep it. Otherwise, one should not add plastic unless the construction is being changed. It is always risky to change functioning constructions, especially if you don't have the opportunity to change the whole house...
I would say if there is plastic originally, keep it. Otherwise, one should not add plastic unless the construction is being changed. It is always risky to change functioning constructions, especially if you don't have the opportunity to change the whole house...
Hello. I have an uncle who is a structural engineer that I asked when I was renovating my previous house. A small house built in 1848. Just wood and no insulation. According to him, one should not use plastic in wooden houses. Wind paper is one thing but not plastic.