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PRODUCT SPECIFICATIONS
- OSB panels are available in 4 foot nominal widths and 8, 9, or 10 foot lengths
- Available performance categories: 7/16˝, 15/32˝, and 19/32˝
- Available on APA Exposure 1 rated OSB
- Recognized as carbon negative by ASTM in 2023
Features and Benefits
Resisting Flame Spread
Do More with Less
Exceed Expectations
Design Freedom
Carbon Negative
Sales Tools
Product Catalog
Architectural Specifications
Assembly Reference Guide
Portfolio Product Guide
Technical Documents
Installation Instructions
Rebates
Environmental Product Declaration
Warranty Information
Building for Resiliency
Guide to Fire Resistance
UL Fire Ratings to Know
Factoring Resiliency into Code Requirements
Carbon Negative Product Portfolio
Putting Our Fire-Rated Panels to the Test
See how LP FlameBlock sheathing performs in a controlled product demonstration compared to untreated OSB.
How It’s Made
To create a standard OSB panel, LP’s innovative manufacturing process combines wood strands oriented in cross-directional layers with waxes and resins. Then, to create LP® FlameBlock® panels, LP’s proprietary non-combustible, fiberglass-reinforced Pyrotite® treatment is added, which combines flame-spread and burn-through resistance. This creates a product that not only resists fire damage but meets code, provides design flexibility, and also offers the strength and structural integrity of traditional OSB panels.
Fire Resistive Technology
Elevate your build with a solution that helps meet building code requirements for fire-resistant construction. Evaluated by ICC-ES, LP® FlameBlock® Fire-Rated Sheathing is a component of 1- and 2-hour fire-rated wall assemblies and for use in roof deck applications. It combines flame-spread and burn-through resistance to give your customers peace of mind.