Flame-Spread Rating for Oriented Strand Board (OSB) Sheathing in Canada
Technical Topic
Oriented strand board (OSB) is a type of wood structural panel manufactured from wood strands and moisture-resistive adhesives in accordance with CSA O325, Construction Sheathing or U.S. Voluntary Product Standard PS 2, Performance Standard for Wood Structural Panels.
This publication is designed for: engineers, architects, designers
This publication discusses the results of a series of flame-spread rating tests that were conducted in conformance with CAN/ULC-S102, Test for Surface Burning Characteristics of Building Materials and Assemblies.
Key sections include:
Flame-spread rating and smoke developed classification for 11 mm (7/16-inch) oriented strand board sheathing
Flame-spread rating and smoke developed classification for 9.5 mm (3/8-inch) oriented strand board sheathing
Published by APA — The Engineered Wood Association.
