in hindsight, albeit incredibly frustrating, the drywall seams failing revealed a much more serious problem. If it hadn't, I'm sure I would have ended up with structural damage from the condensation. On another note, is a perfect vapor barrier ever really possible? Obviously, keeping humidity...
thanks again for all the input. I took the drywall off of that rafter space, and about a cup of condensation poured out. I removed all the foam and replaced it with craft backed fiberglass. I made sure to tape all the edges to the existing vapor barrier, thoroughly, and then caulked around the...
long time lurker, first post.
last summer I added a dormer bathroom to my second floor. Everything went great, I learned a ton. However, when the temperature plummeted in Michigan last month, I discovered a bubbly and moist drywall tape seam on the ceiling. I figured it was condensation under a...