Wind pressure zones are designated areas on a low-slope roof that experience different levels of wind uplift during severe weather.

A wind uplift calculation letter is a professional engineering document that confirms the wind pressures a roof system is designed

Building height is an important factor when engineers calculate roof uplift pressures caused by wind. As a building becomes taller,

The ground elevation factor (Ke) is a wind-design factor used in ASCE 7 to account for changes in air density

Parapet height can significantly affect the wind pressures experienced at the edges and corners of a commercial roof. Because roof

The topographic factor, Kzt, is a wind-design adjustment used to account for increased wind speeds caused by certain terrain features