AAMA Releases Specification for Self-Adhering FlashingJuly 30th, 2013 by DWM Magazine
The American Architectural Manufacturers Association (AAMA) has released an updated standard that establishes minimum performance requirements for self-adhering flashing surrounding exterior wall fenestration products. AAMA 711-13, Voluntary Specification for Self Adhering Flashing Used for Installation of Exterior Wall Fenestration Products also provides a method to determine the minimum width of the flashing products and to evaluate the influence of environmental factors on the installation of self-adhering flashing products applied under typical field conditions.
“AAMA 711 is the only document dedicated to setting holistic material standards for self-adhering flashing used around doors and windows,” says Jim Katsaros, DuPont Glass Laminating Solutions and vice chair of AAMA’s flashing task group. “Using flashing that meets this specification ensures that the flashing will have sufficient peel adhesion, nail sealability and durability through the anticipated exposure. The value of this specification is recognized by the ICC Residential Code, as it is referenced in IRC Section R708.3, stating that self-adhered membranes used as flashing shall comply with AAMA 711.”
Updated from the 2007 version, “the most significant change made to AAMA 711 was the addition of a modified version of ASTM G155 Xenon Arc Test as an alternative to ASTM G154 for accelerated weatherability testing,” says Kim Flanary, Milgard Manufacturing Inc., chair of AAMA’s flashing task group. “AAMA 711 was re-opened in September of 2011 to add an option to test 4-inch-wide specimens in Section 5.3, make general editorial changes in line with AAMA 712 and to review the need to add a flashing sealant compatibility section.”