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The Fenestration and Glazing Industry Alliance (FGIA) has released a new technical information report (TIR) to establish criteria for deflection and permanent deformation gauge device locations in order to meet uniform deflection and structural load test specifications and requirements specific to folding doors. , Structural Test Deflection and Permanent Deformation Gauge Placement for Folding Doors, an FGIA document, is now available for purchase in the FGIA online store.

This TIR describes the correct placement of deflection measurement devices, and calculations for determining deflection and permanent deformation when performing structural testing of folding door products under uniform static air pressure difference per ASTM E330 and/or AAMA/WDMA/CSA 101/I.S.2/A440.

This is the fourth technical information report in a series, which also includes these documents:

• , Structural Test Deflection and Permanent Deformation Gauge Placement for Single-Point Lock Side-Hinged Door Systems
• , Structural Test Deflection and Permanent Deformation Gauge Placement for Fixed and Compression Seal Windows
• , Structural Test Deflection and Permanent Deformation Gauge Placement for Horizontal and Vertical Sliding Windows and Sliding Doors

“Certain industry standards for structural performance require the collection and recording of deflection and deformation during testing,” said Dave Stammen (ASSA ABLOY), Chair of the FGIA Structural Test Deflection and Permanent Deformation Gauge Placement Review Task Group. “This document was developed to provide FGIA accredited test labs with a consistent method for measuring and calculating these deflections/deformations.  Examples are provided in this document to assist test labs with determining the unsupported spans that are most typically used based on the product type being tested.”

, as well as other documents available from FGIA, may be purchased from the online store at the discounted member rate of $25 or the non-member price of $70.

For more information about FGIA and its activities, visit .