Wind-driven rain resistance

A voluntary specification for windows, doors and skylights has been released by the American Architectural Manufacturers Association, Schaumburg, Ill. The publication, Voluntary Specification for Rating the Severe Wind-Driven Rain Resistance of Windows, Doors and Unit Skylights, provides an optional rating of the ability of fenestration products to resist severe wind-driven rain.

This voluntary specification is based on a rapidly pulsed pressure differential method, recognizing that conditions encountered during tropical storms, hurricanes or severe thunderstorms are not static. In addition, the procedures and equipment required to perform the specified tests are provided. The specification details the testing apparatus used; defines test specimens and installation, and describes test methods utilized, as well as stating what information the test report should include.

Source:  http://www.metalarchitecture.com

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