scope:

Abstract:

Norbord TallWall/Windstorm/QuakeZone oriented strand board (OSB) panels are made with strands of various species and strand classifications meeting the PS 2 requirements in accordance with the in-plant manufacturing standard approved by APA. Norbord TallWall/Windstorm/QuakeZone OSB panels are edge sealed and available in Performance Categories from 3/8 to 1-1/8. The OSB panels are typically manufactured in lengths of 8 feet or longer to eliminate horizontal panel joints between the top and bottom plates of a wall. When used in conjunction with 15-1/4 to 24-inch energy-heel trusses installed in accordance with Figures 2 and 3, the long-length panels permit the overlapping of the TallWall/Windstorm/QuakeZone panels over the heel of the trusses, meeting the uplift load-path requirements of the 2021, 2018, 2015, and 2012 IRC Sections R602.3.5 and R602.10.2.1, and the lateral load load-path requirements of R602.10.8.2