richardtenggren
Ingen-gör
· Norrlandet
· 6 615 posts
richardtenggren
Ingen-gör
- Norrlandet
- 6,615 posts
Renovating a house with a hipped roof, there is no previous eaves ventilation. However, there is some mold on the roof sheathing, but according to a carpenter on the street, it is normal this close to the water. I am wondering what to do, should I leave a gap on each gable or continue as it has been? In the attic, there is no mold, only a little in the eaves compartments.
The next concern is if I add extra insulation to the attic, might the climate up there deteriorate? But this is a problem further down the line.
The next concern is if I add extra insulation to the attic, might the climate up there deteriorate? But this is a problem further down the line.
One should not change the conditions without going through the entire construction. If it is a cold attic, usually more ventilation does not solve the problem.
If you have the opportunity, you should place an insulating board on the outside of the raw planks if you are going to lay new roofing felt anyway. Insulating a cold attic usually increases moisture problems as the air temperature drops, which causes more water to condense.
If you have the opportunity, you should place an insulating board on the outside of the raw planks if you are going to lay new roofing felt anyway. Insulating a cold attic usually increases moisture problems as the air temperature drops, which causes more water to condense.
richardtenggren
Ingen-gör
· Norrlandet
· 6 615 posts
richardtenggren
Ingen-gör
- Norrlandet
- 6,615 posts
The roof has already been replaced, but the sheathing was fine otherwise, so we kept it.
(I mean to additionally insulate the "ceiling," we currently have "granulate" or whatever it says, the 70s answer to loose-fill insulation. But we're considering additionally insulating with loose-fill and replacing the current insulation. But that's a concern for later.)
I also think it has worked quite well as it has been, as mentioned, there's a slight tendency for black mold in a few sections of the eaves, but the house is located about 50 m from the sea. In the attic, there is no tendency for mold.
It might be unwise to change the conditions up there through additional insulation, we've already added insulation to the facade and actually have no high heating costs today.
(I mean to additionally insulate the "ceiling," we currently have "granulate" or whatever it says, the 70s answer to loose-fill insulation. But we're considering additionally insulating with loose-fill and replacing the current insulation. But that's a concern for later.)
I also think it has worked quite well as it has been, as mentioned, there's a slight tendency for black mold in a few sections of the eaves, but the house is located about 50 m from the sea. In the attic, there is no tendency for mold.
It might be unwise to change the conditions up there through additional insulation, we've already added insulation to the facade and actually have no high heating costs today.