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olectric · 14th March 2010

I am starting to drywall my 5/12 pitch garage ceiling. We are opening the ceiling up to the roof deck. My question is: with 2x4 trusses, is 8-lb 3" mineral wool going to be better for sound isolation than standard R-13? I will be hanging 2 layers of 5/8" drywall. I have read it both ways on the forum. Any help would be much appreciated!

--Justin

14th March 2010	#1
olectric Gear Head Joined: Aug 2006 Location: Nashville, TN Posts: 33 Thread Starter	R-13 vs Mineral Wool in a vaulted ceiling... I am starting to drywall my 5/12 pitch garage ceiling. We are opening the ceiling up to the roof deck. My question is: with 2x4 trusses, is 8-lb 3" mineral wool going to be better for sound isolation than standard R-13? I will be hanging 2 layers of 5/8" drywall. I have read it both ways on the forum. Any help would be much appreciated! --Justin