Considering weather events, changes in temperature and building movement, it is unlikely that any building will remain 100 percent weatherproof. But with the right materials and assembly, extra steps can be taken to reduce the risk of damage under both normal and severe weather conditions.
Georgia-Pacific Gypsum enlisted Intertek Building & Construction (B&C) to conduct three water penetration resistance tests in accordance with ASTM E331, Standard Test Method for Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Uniform Static Air Pressure Difference. To simulate severe wind-driven rainy weather conditions, three separate wall assemblies utilizing DensElement Barrier System as the primary water-resistive barrier (WRB) were subjected to high volumes of water on the surface of the wall while simultaneously applying uniform static pressure to the opposite side of the wall for a specified period of time.