Convert R-value to Db level (noise) ?

Question

Basically I’m insulating with R-38 and want to know how much “Db value“ or noise reduction it has.

Answer 1

Your wife must be as loud and annoying as my wife is : )

Answer 2

Insulation alone will not necessarily mean noise reduction.There are some good web sites with ideas to help you. Just search for sound proofing or sound reduction. Good Luck

Answer 3

I built a jail and we insulated the offices with R27

http://www.mysoundchek.com/certsck.html

this website explains some of what you were asking about

Answer 4

The R value is unrelated to noise reduction. Two materials of the same insulation value can be very different in sound absorbtion.

Answer 5

not sure about r-32....at work we use roxul....it has an r-42 rating and seems to cancel out all noise