Quote:
Originally Posted by Mrmean58
I had two installed and would do it again. I also had insulation placed over my lanai and garage along with a radiant barrier. The attic stays much cooler protecting the items we have stored over the garage.
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Logically, adding insulation to the unconditioned lanai and garage ceilings should make your attic hotter, not cooler. The attic is usually hotter than the lanai and garage, and the insulation will slow down any heat transfer from the attic to the space below it. But, builders never insulate garage and lanai ceilings because it is considered to be mostly worthless. They only use insulation between conditioned and unconditioned spaces.