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Moisture between foam when installing – GreenBuildingAdvisor
- October 30, 2025
- Posted by: sherwin@eyeconz.com
- Category: Uncategorized
I’m finally installing my exterior foam –
2×6 wall
7/16 osb
tyvek commercial wrap
drain wrap
2 layers of 1” xps and one 1/2” layer of xps for r-13, taping outermost seam
1×4 furring strips
in central MN zone 6.
We just had a bunch of rain and sheets were uncovered annd are all wet, with moisture between almost every sheet. And then I try to work early and there is condensation on everything or later and condensation starts forming again. I’ve been trying to dry each sheet (and the wall) before installing, but afraid I won’t get all. It’s also a lot more work….it feels important as I don’t know if it would ever dry and allow mold growth but how big of a deal would it be if I didn’t?? Any other recommendations for this? I can cover the piles of course but the condensation is going to remain a problem…
thank you!