Nico Haus
2021-08-31 13:10:25
- #1
Hello everyone,
I have a house with a 4-degree shed roof made of 160mm sandwich panels. Since it is quite loud when it rains, I thought about insulating it from below with rock wool. Since the beams on which the sandwich panels rest are 200mm, 200mm rock wool would be suitable, underneath OSB and drywall or just drywall. Since the sandwich panels are not diffusion-open or are already insulated, it will probably be a bit more difficult according to my understanding. Does it then have to remain diffusion-open downwards? So no vapor barrier, allowing any moisture that occurs to escape downward? There is a ventilation system in the house, so the moisture inside the house will not be too high.
What is the correct setup for this constellation? Can someone help me with that?
Best regards and thanks in advance
Nico
I have a house with a 4-degree shed roof made of 160mm sandwich panels. Since it is quite loud when it rains, I thought about insulating it from below with rock wool. Since the beams on which the sandwich panels rest are 200mm, 200mm rock wool would be suitable, underneath OSB and drywall or just drywall. Since the sandwich panels are not diffusion-open or are already insulated, it will probably be a bit more difficult according to my understanding. Does it then have to remain diffusion-open downwards? So no vapor barrier, allowing any moisture that occurs to escape downward? There is a ventilation system in the house, so the moisture inside the house will not be too high.
What is the correct setup for this constellation? Can someone help me with that?
Best regards and thanks in advance
Nico