Currently, R-panel, and rolled fiberglass under them, is screwed to 2×2 tubing on 4′ centers. Hail damaged the white R-panel roof.
If I put on new R-panel, would OSB with a foil radiant barrier to the inside being placed under the new be better?
Bill
Replies
Let me get this straight------ you have metal roofing supported on 4' centers?
So inbetween the 4' supports you just have insulation & no backing structure?
Noisy as hell during rain???????
“The world is a dangerous place, not because of those who do evil, but because of those who look on and do nothing.” —Albert Einstein
Bill,
I have rolled fiberglass insulation between the R-panel and the 2x2 tubing. With that and the 3/4" Sturdifloor attic decking, it's really not so noisy with it rains...
The 2x2 welded tubing trusses are 30' long and on 10' centers. In between the trusses are four 10' by 2x2 tubing lengths spaced on 4' centers. I'd like to remove that thin insulation and add the radiant barrier OSB and 30lb tar paper before going back with new R-panel. On each side, it's 16' from the slight overhang to the top of the ridge with a 4/12 pitch.
Thanks for any insight and experience,
Bill
Edited 5/19/2008 2:03 pm ET by BilljustBill
Any time you can add a semi dense material to the back of a flat panel of metal will help reduce dents.
OSB is the standard for roof sheathing in my neck of the woods, & shelterguard¯ aka R panel is becoming more common in roofing choices.
“The world is a dangerous place, not because of those who do evil, but because of those who look on and do nothing.” —Albert Einstein
Thanks!
Bill