donnie1972


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PRO
ppf.
Building code will dictate a minimum.

Could you tell us why you are asking?

Also helpful is your location, type of roof structure and more.
Yesterday at 4:46PM   
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PRO
Cancork Floor Inc.
In Canada it is pretty easy to tell if you have enough insulation in your ceiling/roof: wait for the first snow and then go outside to view your roof. If you see "melted" spots then you know you don't have enough insulation in your ceiling/roof. If the snow stays intact for days (looks like white frosting) then you are "good to go"; nothing more needs doing.
23 hours ago   
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