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LP® FlameBlock®
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  • Installation Instructions
  • Assemblies
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    • Fire-Rated Wall Assemblies

    LP® FlameBlock® Fire-Rated OSB Sheathing is a component of the following code-compliant fire-rated assemblies.

    2-Hour Exterior Wall Assembly - UL Design No. V337
    2-Hour Interior Wall Assembly - UL Design No. U350
    1-Hour Exterior Wall Assembly - UL Design No. U348

    Under Construction