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Wind Load on an Open Structure with Roof Slope Greater than 45 Degrees

Wind Load on an Open Structure with Roof Slope Greater than 45 Degrees

Wind Load on an Open Structure with Roof Slope Greater than 45 Degrees

(OP)
I have an open structure (gable roof) with slope of 53 degrees. Per ASCE 7-05 table 6-18B, it only provides pressures for the roof up to 45 degrees. What pressure would you use for slopes greater than 45? I would consider using wall pressures, except for an open structure ASCE does not define any wall pressures so I am curious what others would do. Should I treat the roof like a sign?

RE: Wind Load on an Open Structure with Roof Slope Greater than 45 Degrees

I might use the ASCE 7 wind loads on signs

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RE: Wind Load on an Open Structure with Roof Slope Greater than 45 Degrees

I am of the curious type eventho. I do not deal with your reference. Plot pressure vs. angle, do a regression analysis which Excel has, and compare pressure at desired angle to a flat plat to which the wind pressure is normal.

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