Two American Architectural Manufacturers Association (AAMA) voluntary standards regarding flashing were added into the International Building Code (IBC) last week, perhaps signifying the growing importance of flashing to prevent water intrusion.

FS 164-15 1405.4 states “When self-adhered membranes are used as flashings, those self-adhered flashings shall comply with AAMA 711-13 Voluntary Specification for Self Adhering Flashing Used for Installation of Exterior Wall Fenestration Products.”

Proponent Theresa Weston of Dupont Building Innovations explained the reason for the proposal. “Self-adhered membranes are a growing segment of the flashing material market, but no material property or performance requirements for these materials are currently included in the code. AAMA 711 was developed to insure that this type of material meet minimum performance specifications. This proposal incorporates this industry standard by reference into the code, as was previously done in the 2012 International Residential Code.”

The proposal was approved as modified, 13-0.

FS 165-15 1405.4, also proposed by Weston, sought to add another AAMA standard as a reference to the IBC. “When fluid-applied membranes are used as flashing, those fluid-applied membrane flashings shall comply with AAMA 714-15 Voluntary Specification for Liquid Applied Flashing,” stated the proposal.

Weston stated, “Fluid-applied membranes are gaining in use in the market, but no material property or performance requirements for these materials are currently included in the code. Industry has developed standard AAMA 714 to insure that this type of material meets minimum performance specifications. This proposal incorporates AAMA 714 by reference into the code.”

The proposal was approved as modified 11-2.

Finally,  FS 146-15 1403.5 was revised as follows: “For the purposes of this section, fenestration products and, flashing of fenestration products and water resistive barrier flashing and accessories at other locations, including through-wall flashings, shall not be considered part of the water-resistive barrier. This proposal clarifies the intention of the current code that the trigger for requiring NFPA 285 testing is the water-resistive barrier material and not its accessories. It extends to the excepted accessories specifically mentioned to include flashings that are not associated with fenestration.”

The proposal was approved as modified 14-0.

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