John C Daley wrote:Normally they would be good.
BUT, do you have snow loads?
what does this mean please?
I would go 16 oc at a minimum.
Mike Haasl wrote:What kind of roofing will you put on it?
Where the short roof and the clerestory meet, what holds up those ends of each roof? Strong cross beams from side to side? The walls at each end of the building (16 feet apart from each other) should hold that end of the roofs up just fine, I'm wondering how well the other ends of those roofs will be supported.
My house roof was built in the 60 and it's a 14 foot span (peak to outside wall) with 2x6s on 16" centers. They do sag but I've had 3' of snow on it. They probably used better wood back then...
Mike Haasl wrote:
You can save some money by skipping the OSB and using boards running perpendicular to the joists to attach the roofing to. Unless the OSB also helps make the coop air tight or something.
Mike Haasl wrote:Thanks, you can do it too after fiddling with building stuff for a few years...
That all makes sense. In that case I'd also go with 1/2". The osb would help knock the noise down a bunch.
Make sure the support beams for the clerestory section sit on top of some posts in the side walls. Having a beefy beam that is just nailed on the ends doesn't confer as much support as you'd think.
Phil Swindler wrote:A house we lived in 10 or 12 years ago had a 8:12 pitch. When they put a steel roof over the single roof, the snow started just sliding off - no snow load. It's something to consider.