Unregistered said:
We plan to put a steel roof on the house we are fixin to build. The house will be a pole barn framed out of steel, with 2" square tubing trusses for the roof and maybe 1-1/2" square tubing as perlin (over the trusses) on 24" centers. I know you have to put down decking, then felt paper (moisture barrier), then the steel. Since OSB is so high right now, does anyone know of a cheaper alternative? We can screw the roofing steel directly to the square tubing so I guess we just need something that will hold up the roofing felt that doesn't cost so much.
Thanks for any suggestions.
Debi
Kaufman TX
I live in Minnesota so your construction method just does not compute at all. Forgive me for applying MN snow & wind & cold standards to _your_ climate, but:
On a pole shed, you wouldn't need anyfelt or OSB _unless_ there is a moisture issue - which a living quarters would have. Then (again with these MN climates) a little felt paper would not be near enough, you need R-38 or something here..... The pole barn stores have special plastic thin insulation that lays on top of the purloins & just flop the tin on & screw to the purloins. Don't know how that works for a residence tho, it is a low R factor.
The 2" square tubing would not be anywhere near strong enough. Not even close, I don't know if that would be big enough for the perloins.....
Tin is real noisy when it rains. Wouldn't want to be in a bunk bed under it!
--->Paul