For a low-rise building situated on a hill within a densely suburban area, the specific exposure category applied would be Exposure Category B, and a Topographic Factor (Kzt) would be applied and calculated.
Exposure Category defines the characteristics of the ground surface roughness over which wind flows to a building. These categories account for the effect of obstructions on the wind velocity profile. Exposure Category B is characterized by urban and suburban areas, wooded areas, or other terrain with numerous closely spaced obstructions having the size of single-family dwellings or larger. A “densely suburban a....
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