To avoid these ads, REGISTER NOW!

Will closed cell sparay foam stop my condensation problems?

Hobby_Man22

Well-known member
Joined
Nov 16, 2020
Messages
3,581
Location
tx
Anytime it gets cold enough to have a frost it almost always ends up with condensation dripping from the ceiling. I was told it's because the dew point is below the outside temp, well it still does it when that's not the case. I personally think it's frost on the underside of the panel that melts when the sun comes up because thats the only time it does it is around 8am it will drip in various places for about an hour. If I do spray foam, can I still put my insulation batts back on after?
 
To avoid these ads, REGISTER NOW!

racecougar

Well-known member
Joined
Jan 26, 2021
Messages
5,306
Location
Missouri
I was told it's because the dew point is below the outside temp, well it still does it when that's not the case.
No, you were told that it was due to the interior sheet metal falling below the dewpoint of the air inside the building due to the cool outdoor temp.


Reduce interior humidity, raise interior temp, and/or improve insulation to ensure that the dewpoint occurs within the insulation and not at your interior sheet metal if this is a dewpoint issue. If it's a roof leak issue, I'd fix the leaks rather than hide them with an interior application of spray foam.
 
To avoid these ads, REGISTER NOW!
Top Bottom