In order to make 28′ to 32′ rafters the framer for our house manufactured on site hip and valley rafters by cutting two, 2″x8″ rafters diagonally along each rafter, connecting with scews or nails and glue the resulting 2 pieces of word by attaching plywood patches over the resulting area that was cut.
Is a procedure like this acceptable for making long or non standard rafters under building codes in the U.S. Any references to the UBC would be helpful.
Thanks for any response.
jeh32
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jeh32,
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We recently did a house where we had a few jack rafters that were 28' long. Since we were using 2x10s for everything else, we just ordered the 9-1/2" LVL's that come in lenghts up to 60'. Since we only needed about 4 or 5 cost wasn't much of an issue. Especially when you consider that we didn't have to "manufacture" them.
On a clear span no, braced properly off of an interior wall it is no problem.
I agree with BRISKETBEAN - Anything that long would have to be supported somewhere.
With plenty of support, no problem. But if they're clear span, no way is that adequate.
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