Hi,
I have an space over my garage which I am turning into an office. It needs insulation and new roofing shingles--going with 30 year GAF/ELK architectural shingles.
The plan is to use closed cell foam on the rafters. There is almost not attic space--just a 1.5 foot section at the peak of the roof. This will mean no ventilation. In other words this will create a conditioned space.
From all I've read this is the ideal way to go. The one issue I have is that the roofer is balking because he thinks there must be ventilation to cool the shingles. I don't think that this will be the case since it is the build up of heat inside the attic that causes the heat problem. The only thing to heat up now is the decking itself and the shingles, which should have the outside ambient air cooling them.
Does anyone have experience with this combination of closed cell and shingles?
Thanks,
Frank
I have an space over my garage which I am turning into an office. It needs insulation and new roofing shingles--going with 30 year GAF/ELK architectural shingles.
The plan is to use closed cell foam on the rafters. There is almost not attic space--just a 1.5 foot section at the peak of the roof. This will mean no ventilation. In other words this will create a conditioned space.
From all I've read this is the ideal way to go. The one issue I have is that the roofer is balking because he thinks there must be ventilation to cool the shingles. I don't think that this will be the case since it is the build up of heat inside the attic that causes the heat problem. The only thing to heat up now is the decking itself and the shingles, which should have the outside ambient air cooling them.
Does anyone have experience with this combination of closed cell and shingles?
Thanks,
Frank