Full Circle: Fenestration for the Complete Building Envelope

Windows, doors, and unit skylights comprise one performance standard highlighting integral components.
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Jeffrey F. Lowinski

Conclusion

AAMA/WDMA/CSA 101/I.S.2/A440-05, standard/specification for Windows, Doors, and Unit Skylights applies to both operating and fixed, prime and replacement windows, doors and unit skylights installed into exterior building envelopes. It establishes material-neutral, minimum and optional performance requirements for windows, doors, and unit skylights. AAMA/WDMA/CSA 101/I.S.2/A440-05 concerns itself with the determination of design pressure and related performance ratings. Performance requirements are used whenever possible and prescriptive requirements used only when necessary. When products are tested to the gateway requirements, or to the gateway and optional requirements, a rating shall be determined and a test report shall be permitted to be issued. It applies to testing and rating products. The tested rating applies to products of identical construction, with width and height less than or equal to the tested size.

Certification procedures are not part of the standard/specification. Any manufacturer that can demonstrate conformance to this standard/specification is eligible to participate in WDMA�s Hallmark Certification Program. The WDMA Hallmark Certification Program gives builders, architects, specifiers, and consumers an easily-recognizable means of identifying windows, doors, and skylights that have been manufactured in accordance with the appropriate WDMA and other referenced performance standards.

This standard/specification was jointly prepared by the CSA Technical Committee on Windows, Doors and Skylights, under the jurisdiction of the Strategic Steering Committee on Building Products and Systems; the U.S./Canadian Structural Harmonization Task Force; and the Joint Exterior Door Task Group. It has been formally approved by the members of AAMA, by the CSA Technical Committee, and by the members of WDMA.

The release of AAMA/WDMA/CSA 101/I.S.2/A440-05 brings to the architectural and specification community a complete, detailed, and up-to-date reference, acknowledged and referenced by building code bodies, that allows users to select the most appropriate product for the application, whether it�s residential, commercial, institutional or other building type.

Highlights of AAMA/WDMA/CSA 101/I.S.2/A440-05
  • Single standard for both U.S. and Canadian markets for windows, doors, and unit skylights.
  • First complete performance-based fenestration standard that includes windows, doors, and unit skylights.
  • Includes side-hinged exterior doors, sliding doors (often referred to as patio doors), dual-action side-hinged doors, fixed doors (not interior doors), and establishes a Limited Water or LW rating to test products.
  • Included in the International Code Council�s 2006 I Codes, with the temporary exception of swinging entry door systems, and has been presented to the Standards Council of Canada for inclusion in the National Building Code of Canada.

 

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Originally published in Architectural Record.
Originally published in December 2005

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