FlameBlock® Fire Rated Sheating Products


FlameBlock® Fire Rated Sheating

Lumber & Engineered Wood

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.

Subcategory: Fire Rated OSB Sheathing