Roof construction

[Bob_the_builder]

Seems very strange. Can never have too much ventilation in an attic.

That would be a very long discussion, peternicklas. There is an ongoing discussion where attic ventilation is compared to crawl space issues. There are different opinions...

 

[peternicklas]

That would become a very long discussion, peternicklas. There is an ongoing discussion where attic ventilation is compared to crawl space issues. There are different opinions...

Well, of course. But consider that the house is from 1980. I have very free airflow in our attic and don't have any problems with mold or the like; ours is built in 1963. On a new house, I don't know.

 

[KnockOnWood]

...Can never have too much ventilation in an attic...

Oh yes, you can! Moderation is always best.

http://www.thermocell.se/produktinfo/vent_vind.htm http://www.norrlandseko.se/?page_id=1642 http://www.viivilla.se/bygg/glasbetong/ny-ventilation-ska-minska-mogelskadade-vindar/ https://www.google.se/url?sa=t&rct=...ar.pdf&usg=AFQjCNFIWu-I8QaKc8hkJ4WYjQGMZf_QYw

I myself have zero (0) ventilation in the attic, which might be a little too little. RH is about 60%. But it is a so-called climate attic with insulation over the raw timber and vapor-permeable roofing felt.

 

[peternicklas]

As I wrote, not all houses are the same. Had a long discussion with myself about whether to use plastic when I furnished the upstairs. It ended up being plastic.

 

[Fredrik enström]

Hi peternicklas.
We have a furnished attic built by the previous owner. But I agree with you that ventilation is crucial.