1.5-story Äbyhus.
Started tearing down the kitchen ceiling today and discovered there was clear plastic behind the ceiling tiles. Above the plastic is plywood and then the joists.
No problems whatsoever with moisture or anything like that since ('74) and what I've torn down, walls, etc., have been dry and nice.
My question... In the attic, there's also a plastic, but this one is blue. And it does hold the insulation against the roof inside the rafters. But this plastic is a vapor barrier? in the attic?
And the clear plastic in the ceiling of the ground floor is also a vapor barrier? Isn't it bad for the construction to have two vapor barriers, one on the warm side and one on the cold side?
Started tearing down the kitchen ceiling today and discovered there was clear plastic behind the ceiling tiles. Above the plastic is plywood and then the joists.
No problems whatsoever with moisture or anything like that since ('74) and what I've torn down, walls, etc., have been dry and nice.
My question... In the attic, there's also a plastic, but this one is blue. And it does hold the insulation against the roof inside the rafters. But this plastic is a vapor barrier? in the attic?
And the clear plastic in the ceiling of the ground floor is also a vapor barrier? Isn't it bad for the construction to have two vapor barriers, one on the warm side and one on the cold side?
The upper floor was probably not furnished from the start, hence the plastic in the intermediate floor structure that was originally an attic floor structure. It doesn't do any good there but also not much harm. There are many typical houses in Sweden where it looks the same.
Yes, exactly, that's correct, it was an unfurnished attic from the beginning.
But that's a relief, then I don't need to worry. I read somewhere that it can be bad? Trapping moisture.
But shouldn't the moisture find its way to the exhaust vents better? Since the easiest way (upward) is closed (sealed with plastic)?
But that's a relief, then I don't need to worry. I read somewhere that it can be bad? Trapping moisture.
But shouldn't the moisture find its way to the exhaust vents better? Since the easiest way (upward) is closed (sealed with plastic)?
As long as the air is heated, the moisture (i.e., water vapor) is bound in the air. It is only when the air is cooled that the water vapor can condense.