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Main wind force-resisting systems shall comply with the following:
  1. The building shall be designed for the following net lateral wind pressure to be applied to the horizontal projection of the building surfaces:
    1. From 0 to 100 feet (0 to 30 480 mm) elevation 20 psf (0.96 kN/m2).
    2. From 100 to 300 feet (30 480 to 91 440 mm) elevation 25 psf (1.2 kN/m2).
  2. An importance factor, I, shall be determined in accordance with Section 1609.5 and shall be applied to the pressures indicated above.

Related Code Sections

1609.6.3.1 Structural Design, Main Wind-Force-Resisting System
Main wind force-resisting systems shall comply with the following: The building shall be designed for the following net lateral wind pressure ...