Garage Insulation project


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Old 06-12-18, 10:52 PM
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Garage Insulation project

Hey guys,

I'm about to insulate and drywall my garage and paying close attention to my east-facing wall because the sun is so against here in SoCal.

Currently the original tar paper is broken up or missing in several spots. My guy said the right way to do this is to remove the wood siding on the exterior side of the wall but this would be cost prohibitive. Is it worth stapling and patching the tar paper from inside the garage? I understand it's my only form of a vapor barrier while I don't see much rain here and my eaves are pretty deep, its still a concern.

That being said moving forward from the tar paper I'm interested in using some kind of polyiso board or perhaps a reflective atticfoil to work in unison with the R15 bats that I'm going to staple in. Would like to hear any suggestions or ideas on little tricks that I can do here before I close up this wall.

As for the 2x12 rafters on the ceiling, I plan on using R38 bats. Too basic?

Thanks in advance!
 
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