The Type BW attic shield is used on a single-story building or on the top story of a multi-story building for Type BW gas vent. A 26-ga 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.
AmeriVent® Oval Attic Shield, Type BW, For Use With: Type B Gas Vent Systems, Import
Domestic/Import | : | Import |
Suitable For Use With | : | Type-B Gas Vent Systems |
Type | : | Type BW |