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Wind load on sloped roof with parapet

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Say you have a small existing victorian wood building, 30' x 22', 12'
ceiling with a 22.5 degree roof pitch, 5' ridge height, gable ends, but 2
orthoganal walls have a 4' parapet (1 foot lower than the ridge.) The front
gable end and one side have parapets. The front parapet perpendicular to the
ridge is part of the victorian look and the side is essentially a dutch
gutter against the property line.

Can this be analyzed using the simplified procedure? For the MWFRS, how do
you apply the B and D zones to a pitched roof that has a tall wall parapet?
Seismic will probably govern in both directions for the MWFRS.

Thanks

Jeff


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