Quote:
Originally Posted by Cole_Robbie
What is the cheapest insulation? I have been wondering that lately.
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Cheapest isn't always the best, though it's a good place to start looking.
You will need a closed cell foam or it will fill with water from condensate and be useless.
Spray in may be on the more expensive end, but the best value.
It won't waterlog, and it can fix all the leaks you unintentionally left in during construction.