BackerBead from ClarkDietrich Passes ASTM E-331 Testing
ClarkDietrich is pleased to announce that its BackerBead vinyl accessory product has passed testing under ASTM E-331 Standard Test Method for Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Uniform Static Air Pressure Difference. This test method determines the resistance to water penetration for exterior windows, curtain walls, skylights, and doors when applied under uniform static air pressure differences.