Wind uplift design is a critical design component for an exposed geomembrane cover system. Conventional design methodology neglects the short-term vacuum that will be developed below the geomembrane as it is being uplifted, which leads to significant overdesign. A revision to the conventional design methodology was proposed to account for such an effect. This webinar will discuss the conventional design methodology, the proposed revision, and provide a design example. 1.0 PDH