WB Fire & Smoke Vents
Williams Brothers and Bilco Fire & Smoke Vents are designed to provide efficient and secure service access to critical areas on roofs for a
wide range of commercial, industrial, institutional and residential applications. Ideal for both new and retrofit building projects, our floor
and roof hatches and doors are suitable for use on a variety of surfaces enabling easy access to mechanical, electrical, plumbing and other
Sizes & Options
Williams Brothers and Bilco Fire & Smoke Vents are available in a wide range of sizes designed to meet common roof access requirements with
special sizes and modifications available upon request. We also offer many additional features such as drainage troughs, locks, gasketing,
choice of finishes and custom color paints.
Williams Brothers prides itself on the differences we bring to our products. We chose to represent the Bilco line of hatches based on their reputation
for high quality, innovative products.
Basic: The WB Type Q Floor Hatch is an ecomomical solutions featuring non-drainage single leaf covers that are constructed of
1/4" steel diamond pattern plate and reinforced for a 150 lb/ft2 (732 kg/m2) live load. This door comes complete with zinc plated, chromate
sealed hardware, concealed hinges, and the T-CAM® lifting system for ease of operation.
Fire-Rated: The WB FR & FRLC Fire-Rated Floor Hatch maintains the fire rating of a 2-hour floor/ceiling assembly where access
is required between building floors. Featuring the latest fire-resistant technology, the model FR Hatch incorporates an automatic, heat triggered
closing mechanism to protect floors above from fire below.
Other popular roof access hatch models include: WB roof hatches, roof hatch railing systems,
WB floor hatches, Bilco floor hatches,
and safety posts and ladder ups for specialty needs.