Commercial Building with Monoslope Roof and Overhang

This chapter presents the determination of design pressures for a typical retail store in a strip mall. The building does not meet the requirements of ASCE 7-16 for a simple diaphragm building, because the roof is not flat, gable, or hip; therefore, the simplified procedure described in this standard cannot be used. If the roof is not gable, flat, or hip, the low-rise building provisions of ASCE 7-16 should not be used, and the directional procedure for Main Wind Force Resisting Systems (MWFRS) is used instead. Because the building has a monoslope roof, the roof surface for wind directed parallel to the slope may be windward or leeward. The zones for roof overhangs are different from the zones for a monoslope roof. Tables are included that provide data for commercial buildings with monoslope roofs and overhangs, as well as design pressures for MWFRS for wind parallel- and normal-to-roof slopes, and normal- and parallel-to-ridge lines.