Skip to main content

Back to Document Library

Service Life of Oriented Strand Board (OSB) Sheathing

Technical Topic

Occasionally, questions are raised about the service life of oriented strand board (OSB). This publication explains how OSB performs when properly specified, installed and maintained.

This publication is designed for: builders, designers

This publication examines the four primary environmental factors that influence OSB service life. It clarifies the appropriate applications for Exposure 1 rated OSB sheathing and establishes performance parameters that support long-term durability.

Key sections include:

  • Ultraviolet (UV) degradation

  • Temperature

  • Fungi attack

  • Moisture

Published by APA — The Engineered Wood Association.

Related Resources

Explore All Guides, Tools & Training

2024 Multi Product shots Engineered Wood Construction Guide Technical Guides - E30 This publication provides a comprehensive overview of engineered wood construction systems for residential, commercial and industrial buildings ADOBE STANDARD LICENSCING | Standard licenses Most Adobe Stock photos, vectors, and illustrations come with a Standard license. With a Standard license, you may: • Reproduce up to 500,000 copies of the asset in all media, including product packaging, printed marketing materials, digital documents, or software. • Include the asset in email marketing, mobile advertising, or a broadcast or digital program if the expected number of viewers is fewer than 500,000. • Post the asset to a website or social media site with no limitation on views. • Include the asset in some types of products, such as inside a textbook, as long as the primary value of the product is not the asset itself, and the product is not reproduced more than 500,000 times. • Share the unmodified asset with your employees and contractors who have contractually agreed to abide by the license terms. • Transfer the license to your client or employer. (With a Standard license, you may not: • Distribute the stand-alone file. • Create merchandise, templates, or other products for resale or distribution where the primary value of the product is associated with the asset itself. For example, you can't use the asset to create a poster, t-shirt, or coffee mug that someone would buy specifically because of the asset printed on it. • Transfer the license to more than one employer or client, unless separately licensed for each.) Decay of Engineered Wood Products Customer Service Tip - W505 This publication discusses the causes of fungal decay in wood structural panels and how proper design, construction and maintenance can prevent fungal decay. FAQs About Oriented Strand Board Technical Topic - TT-133 This publication discusses buckling, fastener recommendations, surface flaking, thickness swell, linear expansion and moisture management of OSB wood structural panels

More Technical Documents

More Training & Tools