About the product
Positive Pressure-rated doors can preclude the smoke that kills.
Positive Pressure builds on the upper two-thirds of a fire side of a door causing hot smoke, hot gases, and flames o flow through door openings.
New method of positive pressure fire test of door assemblies (UL10-C) simulates real fire conditions compared to the old neutral/negative pressure test (UL 10-B).
Positive Pressure builds on the upper two-thirds of a fire side of a door causing hot smoke, hot gases, and flames o flow through door openings.
New method of positive pressure fire test of door assemblies (UL10-C) simulates real fire conditions compared to the old neutral/negative pressure test (UL 10-B).
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