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Originally Posted by mwagener  I was advised that I should not waste my money on cotton batts or 703 inside the walls and to use R-19 (the pink stuff) in the outside wall and R-30 for the inside wall. Any comments? Does pinky have the same or similar STC rating as 703? |
http://www.bobgolds.com/AbsorptionCoefficients.htm
I built my traps out of pinky to save cost. They work pretty well. I also believe that Ethan Winer says that 4inch 703 is about the same as 10inch fluffy. When in doubt, the Bob Golds site is good.