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My sister bought her home about 8 years ago. Its a story and a half with vaulted ceilings on the second floor. This appears to be a remodel that was done by one of the previous homeowners. She has had no problem with condensation up until she had her roof replaced two years ago. The house is pretty old and apparently there were two or three layers of roofing on it. The roofer did a complete tear off and reroofed the house.
The ridge runs east/west in Wisconsin. The shingles on the north side of the roof are curling and the shingles on the south side are fine. The roofer inspected it and told her that the reason the shingles are curling is because there is no venting between the rafters and the sheathing. I tend to think this is a logical conclusion without seeing it or doing any demolition. Together they were able to access a crawl space and cut through some vapor barrier. The sheathing and insulation felt slightly moist. The roofer additionally told her that she probably didn't have previous issues with condensation because the three layers of roofing didn't provide a tight seal and allowed air to leak out. Again, this makes sense to me.
Couple of things that don't make sense is the fact that only the north side is curling and not the south side. Additionally, is the fact that the old roof had two vents on each side. The roofer installed 4 vents only on the north side when he redid the roof. This make sense to you guys?
The roofer who did the work is reputable and has been around for 25 years. Without inspecting it I can't say it is due to a bad installation or not, but based on the facts I tend to give the benefit of the doubt.
Any way to vent the space between the rafters without ripping out all the drywall and insulation? I can't think of one. :cheesygri
The ridge runs east/west in Wisconsin. The shingles on the north side of the roof are curling and the shingles on the south side are fine. The roofer inspected it and told her that the reason the shingles are curling is because there is no venting between the rafters and the sheathing. I tend to think this is a logical conclusion without seeing it or doing any demolition. Together they were able to access a crawl space and cut through some vapor barrier. The sheathing and insulation felt slightly moist. The roofer additionally told her that she probably didn't have previous issues with condensation because the three layers of roofing didn't provide a tight seal and allowed air to leak out. Again, this makes sense to me.
Couple of things that don't make sense is the fact that only the north side is curling and not the south side. Additionally, is the fact that the old roof had two vents on each side. The roofer installed 4 vents only on the north side when he redid the roof. This make sense to you guys?
The roofer who did the work is reputable and has been around for 25 years. Without inspecting it I can't say it is due to a bad installation or not, but based on the facts I tend to give the benefit of the doubt.
Any way to vent the space between the rafters without ripping out all the drywall and insulation? I can't think of one. :cheesygri