Let's Talk About the 1 Closed Cell Foam R Value
If you're trying to figure out your home's insulation needs, you probably just want to know the 1 closed cell foam r value so you can decide if it's worth the investment. Let's get straight to it: for every single inch of thickness, closed cell spray foam usually gives you an R-value between 6.0 and 7.0. Compare that to your standard fiberglass batts, which usually hover around 3.0 to 3.5 per inch, and you can see why people get so excited about this stuff. ...