Attached Garage Conversion
Upstate NY zone 6.
Pandemic requirements: New puppy . Check
Sour dough mastery. Check. Go crazy with the kids , wife , dog in our 1000 sq ft ranch. Check.
Our plan is to turn our attached garage into a heated living room. I already had a small pole barn built for all our stuff and moved the garage door over and framed in the old garage door opening.
The garage walls are 2×4 with batt insulation. I would like to bring this renovation close to stretch energy codes and achieve a wall Rvalue above 20.
Can I safely build a 2nd stud wall inside the exterior walls and insulate the whole cavity with batts or cellulose?
I really don’t want to take the siding off and insulate from the outside with foam boards if at all possible .
But some of the articles I have read about double wall construction and Cold Sheathing have me worried I’m going to turn my OSB to oatmeal if I simply overinsulate the space.
Is this truly a risky way to build? What , if anything, can I do to minimize this risk outside of wrapping the exterior in a coffee cup?
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