Conensation on sheathing
I have built my house based on the great information on this site, so now that I am insulating my walls, I have a question.
My walls are as follows, exterior vinyl siding, 3/4 furring strips, Tyvek, 2 layers of 3″ poly iso Insulation (6′ total), Advantech OSB, 2×4 studs with R14 Rockwool, CertainTeed Membrain (smart vapor barrier), Drywall, Latex paint. I noticed that a couple of spots under the Rockwool had condensation on the OSB, the membrane had been partly installed in this section, but not full attached, none of the other stud bays without Memebrain had moisture. The house is currently heat at 67F and outside temp is roughly 30F.
Should I be worried about this?
I know that there may be extra moisture in the house being a new build, and no ERV working yet.
The building inspector is requiring the vapor barrier.
Climate Zone 6 (Ontario)
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