Quote:
Originally Posted by retiredguy123
In my opinion, insulating any unconditioned space will not provide much benefit. Insulation will only slow down the heat transfer process. But, unless the garage space is conditioned, the inside and outside temperatures will eventually reach a state of temperature equilibrium. That is why builders never insulate unconditioned spaces.
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Having install garage doors over 20 years this is what I tell people. If you face the sun it will help some but is really only useful if you are cooling garage.