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Description
MetalBest 164490 Type BW Attic Shield, Model 40V-AS, 4" Inside Diameter Product Features: The Type BW attic shield is used on a single-story AVS building or on the top story of a multi-story building for Type BW gas vent. A 26-gauge galvanized sleeve should extend from the top of the ceiling plate into the attic. A Type BW attic shield is required by Los Angeles Code and UMC.
- The Type BW attic shield is used on a single-story AVS building or on the top story of a multi-story building for Type BW gas vent. A 26-gauge galvanized sleeve should extend from the top of the ceiling plate into the attic. A Type BW attic shield is required by Los Angeles Code and UMC.
The Oval line of MetalBest Oval vent pipe and fittings is designed for large residential, industrial and commercial applications.
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Prop 65 Warning: Product's may contain one or more substances or chemicals known to the State of California to cause cancer, birth defects, or reproductive harm.
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