Re: pole barn trusses

Posted by RodInNS on October 11, 2009 at 15:02:02 from (216.118.158.123):

In Reply to: pole barn trusses posted by 7lazy77 on October 11, 2009 at 11:09:37:

The best thing to do is ask the original builder what center the trusses were designed to be used on.
They are designed to carry a certain snow load and wind load which in my opinion will be the same for a house OR barn... and if your local codes suggest otherwise, you have stupid codes. So... if they were designed to work on 2' centers, use them on 2' centers. If they were designed to work on 4' centers, use them on 4' centers.
On a barn I'd prefer to strap the roof with 2x4 on 16' centers, then screw the steel to that if you were using steel, otherwise, if you're using shingles, do it with plywood the same as a house.
Basically, find out from the builder what center they were intended to be used on. That's the only real question you need to ask. Beyond that I'd likely add knee bracing under the trusses after the roof is framed up for extra wind rating.

Rod

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