Insulating vaulted or cathedral ceiling in upper story and a half home

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Posted by: from Sudbury
3/8/2017 at 9:25:45 AM

I am renovating a home, currently removed all drywall in the upper story and a half. Cathedrial, True 2x4 construction, 16" centers. They had craft faced insulation directly against the roof sheathing, I have removed all and looking for the best solution to replace and create the necessary ventalation.

I was considering roxul product, which requires 3", leaving me with just under an inch for ventalation. I cannot purchase a baffel that his 1", considering making my own with 1/4 inch SM??

Thoughts or suggestions please.

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Date/Time3/8/2017 at 12:01:08 PM

I would look into 3 lb spray foam professionally sprayed insulation. It will provide the vapor seal and a higher insulation value.

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