AAMA Updates Wind-Driven Rain Standard

Window & Door
November 30, 2012

The American Architectural Manufacturers Association has updated its AAMA 520-12 Voluntary Specification for Rating the Severe Wind-Driven Rain Resistance of Windows, Doors and Unit Skylights.

“The specification is applicable for use in testing and comparative rating of windows, doors and skylights that are used in areas which may be subjected to severe wind-driven rain,” says Ken Brenden, AAMA’s technical director. “Updated from the 2009 document, AAMA 520-12 contains a new addendum which provides additional guidance regarding required water collection.”

AAMA 520-12 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 document 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.

More information about purchasing the new document is available at the AAMA Publication Store.