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RE: WOOD: Wind Uplift on Rafters

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At 12:04 PM 9/14/2004 -0500, you wrote:
Okay, this is a good point. I don't think my question was clear enough, but you answered it anyway.
If the wind load goes from the sheathing fasteners into the hurricane clips, how does it get there? Seems to me since the sheathing is nailed to the rafters, and the rafter is tied to the top plate by the hurricane clip, the answer is that the force goes THROUGH THE RAFTERS, right?

It does, but in non wind-sensitive areas the design isn't controlled by wind.  LL (usu 20psf) plus DL (rarely less than 10psf) is generally greater than WL minus DL' / duration factor  (DL>DL').  You've got to have a rip-roarin' wind to cause the wind to control the rafter-component design load in most cases.  Naturally, the connections get designed for actual loads.  If you are in a high-wind area, you get to do the whole thing by hand (or computer) - that's why we get paid the big bucks ;-)

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