Insulation on Rafters Re: the Lifetime of Roof

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April 12, 2022 at 10:38 a.m.

AliceReynolds

What do you think about insulation on rafters? Will it shorten the life of the roofing?

April 12, 2022 at 10:40 a.m.

AliceReynolds
Below is what our roofing expert John Stout from Go Roof Tune Up had to say in response to the above question:
 
Extreme Heat and improper ventilation will cause premature deterioration of roof shingles. Having a Batt Insulation layer between rafters should not have a negative effect on the life of the shingles. Attic temperatures are an important part of the equation in calculating shingle life.
 
I think insulation between rafters would be without problems as long as it did not restrict the normal ventilation and would not create hot spots at the roof sheathing. 

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