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What is the fire rating of FlameBlock?

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What is the fire rating of FlameBlock?

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LP FlameBlock is rated for flame spread and smoke development as well as burn-through resistance. LP FlameBlock is a Class A (or I) flame and smoke rated panel as determined by the ASTM E-84 (UL 723) Flame Spread test conducted by Underwriters Laboratories. LP FlameBlock meets Class A commercial low slope roof deck assembly requirements under single-ply membranes, exceeds the 15-min. thermal barrier requirement for foam core plastics, and is listed in a variety of 1 and 2-hr load bearing wall assemblies.

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