Performance of Flexible Structural Sheathing
Product Advisory
This APA Product Advisory shares results from tests conducted in 2019 on three flexible sheathing materials, with tests previously conducted in 2015 through 2018 on five other products. The tests were performed at three independent laboratories to measure the lateral load (shear wall) performance. All results were compared directly with the values published in the manufacturers’ product evaluation reports based on the same referenced ASTM standards.
This publication is designed for: builders, architects, engineers, designers
The test results presented in this publication show that all eight tested flexible structural sheathing materials overstate their lateral load resistances by as much as 42% when compared to their published design values.
Key sections include:
Test results
Background information about testing
Typical failure modes and pictures from testing
References
Published by APA — The Engineered Wood Association.
