AAMA Updates Design Guide for Metal Cladding Fasteners
The American Architectural Manufacturers Association updated a Technical Information Report providing metal curtain wall designers with the necessary data to select fasteners for curtain wall framing members and components. AAMA TIR-A9-14 also outlines the process of anchoring curtain wall systems to building structures.
“The updated AAMA TIR A9-14, ‘Design Guide for Metal Cladding Fasteners’ will be even more technically significant to the metal fenestration industry than the original widely used AAMA TIR A9-91, ‘Metal Curtain Wall Fasteners,’” said Tanya Dolby of Kawneer, chair of AAMA’s Curtain Wall Fastener TIR Task Group. “The 2014 release contains new and updated sections that reflect testing and research that occurred over the last 23 years.”
Hydrogen embrittlement is now addressed in the 'Protection Against Corrosion' section of the document. Additionally, the new Safety Factors section provides a thorough explanation of how safety factors were derived for the range of fastener diameters.