My house has a fairly recent addition done by someone who I dont know or care to know. The cieling was drywalled without a vapor barrier or insulation, and I found out the other day after removing the drwall from the exterior wall to install a new door that they installed R-19 in a 2x4 wall instead of R-13. Will that actually be less effective than R13 now since it is compressed by the drywall? I really dont feel like ripping out all three exterior walls and reinsulating or furring out to 2x6 dimensions.
COMMUNITY FORUM
Hi ACD,
Yes, definitely, R-19 will not be the net R-value in a 2x4 wall. R-19 is meant for 2x6 walls where R-13 is meant for 2x4 walls.
Visit www.owenscorning.com and email those folks for specifics. Just tell them that you found OC insulation w/such-and-such-a-problems as you stated. Ask them what the net R-value is in your current situation. ANd ask them what you should do. Oh, DO mention if it's Kraft-sided insulation too, or not.
My best to ya and hope this helps.
Jay J -Moderator
PS: God Bless America!
