Quote:
Originally Posted by Dante84
I sell new homes and condos that use spray foam insulation and solar panels.
If done right (thick walls, on the rafters in the attic), your home will act like a cooler.
2000 sq ft home has ~ $20 electric bill... in Austin Tx which is hot as hell.
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50% of doing it right has absolutely nothing to do with the insulation itself and much more to do with the prep in proper sealing. You get the benefit, like me, of having a new home to work with where everything can be sealed, checked, sealed in missed areas, then sprayd. He isn't getting that benefit in an old home just by spraying some foam upstairs, but he can get closer if he takes the proper steps.