TuffStrand-WRB™
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TuffStrand-WRB™
Take your exterior builds to the next level with TuffStrand Weather Resistant Barrier™(TuffStrand-WRB™), the ultimate two-in-one structural sheathing and weather-resistant barrier. By combining a high-performance weather-resistant barrier with a trusted oriented strand board (OSB) panel, this system can save you valuable time and labor costs on every job site. Unlike a separate OSB and house wrap application, TuffStrand-WRB™ combines both into an economical tape-and-panel system for a faster, more streamlined install.
Engineered for maximum durability and efficiency, this system helps reduce labor costs while standing up to the toughest weather conditions. TuffStrand-WRB™’s advanced tape-and-panel system forms a tight, continuous seal that delivers outstanding protection against the elements. This system also holds up to job site handling better than a separate house wrap application, which can tear, puncture, or blow away before the wall is even closed in. It’s a smarter, faster, and more reliable way to sheath and protect your structure, trusted by builders who do the job right the first time, every time.
ENGINEERED FOR WHATEVER YOU’RE BUILDING
TuffStrand-WRB™ has a Class “B” fire rating, is APA-rated, and is fully code-compliant, meeting all modern safety standards and local, state, and national building codes. Available in thicknesses ranging from 7/16 to 23/32 and in extended panel lengths, it provides flexibility for a wide range of applications, from residential homes to large-scale commercial and multi-family builds.
For builders, RoyOMartin delivers solutions that work as hard as the crews installing them, and TuffStrand-WRB™ is no exception. Designed with the job site in mind, this all-in-one structural sheathing and weather-resistant barrier tape-and-panel system can withstand the toughest climates. For builders weighing TuffStrand-WRB™ against separate sheathing and house wrap application, it’s a smarter, stronger choice that delivers structural sheathing and weather protection without compromise, backed by a company that helps build for the long haul.
- Category: OSB
- Tags: Extended Length Panels, Oriented Strand Board, OSB
Lengths*:

- 7/16 (3/8 struct-one equivalent)
- 15/32
- 19/32
- 23/32
- *Also available in 7/16 and 15/32 StructWall.
*nominal inches **performance categories
RoyOMartin Chain of Custody/Forest Management Certificate (FSC®-PBN-COC-000186)
APA – Resilient Wood Construction for Wind, Weather, Seismic Forces, and Moisture
What is TuffStrand-WRB™?
TuffStrand-WRB™ is an APA-rated structural sheathing panel with a weather-resistive barrier factory-applied to the panel surface. When installed as a complete tape-and-panel system, it combines structural wall sheathing and a built-in WRB in one, reducing the need for a separate field-applied housewrap layer.
Does TuffStrand-WRB™ replace housewrap?
Yes. TuffStrand-WRB™ replaces the need for a separate field-applied housewrap when the complete system is installed according to RoyOMartin instructions. After the panels are installed, crews must seal panel joints and corners, flash openings, and properly address nail penetrations as required to create a continuous weather-resistive barrier.
How does TuffStrand-WRB™ compare to a separate House Wrap?
Housewrap is a separate membrane installed over structural sheathing after the wall is framed, requiring an additional installation step. TuffStrand-WRB™ tape-and-panel system arrives with the weather-resistive barrier factory-applied to the sheathing, so installers seal the panel joints, corners, penetrations, and openings as directed, with approved tape, rather than installing a separate field-applied housewrap layer.
How are TuffStrand-WRB™ seams sealed?
All panel joints are taped with specialized TuffStrand-WRB™ tape according to the official installation instructions. When the full system, including joints, corners, penetrations, windows, and doors, is properly sealed and flashed, it creates a continuous weather-resistant barrier. See the current tape literature and installation guide on the product page for complete requirements.
What is the fire rating of TuffStrand-WRB™?
TuffStrand-WRB™ carries a Class “B” fire rating, which improves TuffStrand’s performance capabilities.
What sizes does TuffStrand-WRB™ come in?
TuffStrand-WRB™ is 48 inches wide (nominal) in 7/16 (3/8 struct-one equivalent), 15/32, 19/32, and 23/32 performance categories, and is also available in 7/16 and 15/32 StructWall. Lengths include 8′ and extended lengths to save more time and money.
Is TuffStrand-WRB™ code approved?
TuffStrand-WRB™ is manufactured to DOC PS2 and PRP-108 and verified by APA – The Engineered Wood Association (mill number 511).
Does TuffStrand-WRB™ have a warranty?
TuffStrand WRB™ is backed by a 25-year limited warranty. To keep the coverage valid, the system must be installed by a licensed contractor in accordance with the official installation instructions and all local building codes. Navigate to the product page on our website to view the complete TuffStrand-WRB™ warranty.
Discover the Value of
TuffStrand-WRB™
Tape and panel method installs faster and replaces traditional housewrap
Class “B” fire rating improves TuffStrand’s performance capabilities
Available in 8’ and extended lengths to save more time and money
APA-rated structural sheathing with preapplied housewrap
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