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AAMA 501.4-26 Recommended test method for lateral inter-story movements (drift)

Publication Year

2026

Document Status

Current

Abstract

A means of evaluating the performance of windows, window wall, curtain walls and storefront systems when subjected to specified horizontal displacements in the plane of the wall.

Document History

Supersedes AAMA 501.4-18.

Publisher Information

American Architectural Manufacturers Association

The American Architectural Manufacturers Association produces performance standards, product certification and educational programs for the fenestration industry.