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Why LP?

Lasting beauty for your home.

LP® siding and structural solutions are designed to protect your home—offering stunning curb appeal, durable performance and long-term peace of mind.

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LP FlameBlock Fire-Rated Sheathing

LP® Structural Solutions

LP® FlameBlock® Fire-Rated Sheathing

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Combining flame-spread and burn-through resistance, LP® FlameBlock® Fire-Rated Sheathing is APA-rated OSB coated with a layer of noncombustible Pyrotite® fire-resistant cementitious material evaluated to help meet code requirements for fire-resistant construction while providing great design flexibility that elevates your build.

FlameBlock Duplex - Home

Fire Resistance

FlameBlock Duplex - Home

Combines proven flame-spread and burn-through resistance on one panel, which may provide crucial time to evacuate in the event of a fire.

Elevate Fire Resistance

Benefits of LP® FlameBlock® Fire-Rated Sheathing

When it comes to defending from fire, LP® FlameBlock® Fire-Rated Sheathing combines proven flame-spread and burn-through resistance in one panel.

Meet Code Requirements

Evaluated by ICC-ES, UL, and Intertek, LP® FlameBlock® Fire-Rated Sheathing has approved assemblies to meet building code requirements for fire-resistant construction.

Do More with Less

A fire-rated sheathing that provides strength, savings and easy installation–at an affordable price.

Exceed Expectations

Combined flame-spread and burn-through resistance bolster a structure’s fire resistance capabilities, providing peace of mind.

Design Freedom

Allows flexibility in designing wall openings, framing, and bracing

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Warranty Information

LP® FlameBlock® Fire-Rated Sheathing Warranty

Our products are backed by industry-leading warranties.

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Some things just work. Others work as one.

From siding to sheathing, our products aren't just designed to be strong on their own, but to be stronger, together.

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