Hi all, well my handyman is finally back on the job. Had roof leak, it's been repaired. Now pulling off T-111 siding that's been water damaged. Think it's called cellotex substrate underneath the T-111. Have second story plumbing for a bath on this outside wall. It's froze a few times on me. Thinking I need to use good quality pipe foam on all pipes, as well as R-15, (2x4 studs), roll insulation in walls. Also wondering if a half inch of one of the foam type substrates might not be a bad idea before replacing the T-111 siding. Seen some 4x9 insul-(something or other) at home depot tonight, in 2 inch thickness it's R-10, don't know what R value would be for half inch, maybe R-2 or so. Anybody have a suggestion for what would be good to use? Needs to be something I can pick up at HD, I'm supplying materials for the job. Cheers, Steve J.

I'm looking into building a house in Woodloch Springs in PA. They are gonna build the house with 2x6 exterior walls. What is the maximum R factor I could get with the insulation? Thanx for the help.