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Old 02-19-2008, 12:55 PM   #1
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Adding a layer of high density foam to roof


I currently live in MN and have a older 1 1/2 story remodeled farm house. The upstairs has knee walls in about 8 ft from the side and stand about 4 ft inside from there to just about the peak of the roof it is 2x4 with 3 1/2" of fiberglass insulation. My roof seldom has snow (lots of propane).

I need to reroof and I have been considering tearing off the shingles and laying a layer of 2" high density foam over the existing plywood with a new layer of 1/2 plywood on top of that and then new shingles.

My question is has nayone done this and are the results worth the effort?

Thanks,

Mike Ehman
northen mn (-15 this morning)

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Old 02-19-2008, 11:48 PM   #2
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Adding a layer of high density foam to roof


Try reading through this other recent thread and see if the concept of the ventilated insulation that I suggested is in alignment with your current thought process.

Ed

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