The Fenestration and Glazing Industry Alliance (FGIA) has updated a specification covering requirements for corrosion-resistant coatings on carbon steels used for hardware components in fenestration applications.
The document, AAMA 907-23, “Specification for Corrosion Resistant Coatings on Carbon Steel Components Used in Windows, Doors and Skylights,” was last updated in 2015.
“AAMA 907 is a critical hardware document that is referenced by most other codes and defines a pass/fail criteria for products tested to ASTM B 117,” says Chris Griffin of Roto Frank of America and vice chair of the document’s developing group, the FGIA Steel Component Corrosion Task Group. “This newest version is important because it adds back in established allowances for zinc dichromate plating, which had been removed from the previous version.”
FGIA says the requirements in AAMA 907 are functional and are not intended to address aesthetics, adding that due to the diversity of corrosive environments that windows, doors and skylights are exposed to, the specification does not imply a specific service life. Fasteners are included in the specification’s scope.
“This specification is referenced in many of the 900 series hardware standards,” says Dan Raap of AmesburyTruth and chair of the developing group. “Many hardware components are zinc plated with chromates such as sliding patio door rollers.”