Roof-Mount Ventilators | McMaster-Carr

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147 Products

Exhaust Fans

Wind-Driven Roof-Mount Exhaust Fans

Designed to spin freely with the slightest breeze, these fans create a vacuum that draws air out from buildings and ventilation systems—no electricity required.

Mounting Bases for Wind-Driven
Roof-Mount Exhaust Fans

All bases have a square bottom, round top, and flashing to simplify installation.

Direct-Drive Downdraft Roof-Mount Exhaust Fans

Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance.

Belt-Drive Downdraft Roof-Mount Exhaust Fans

Belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged.

Direct-Drive Upblast Roof-Mount Exhaust Fans

Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance.

Hazardous Location Upblast
Roof-Mount Exhaust Fans

With a UL-listed motor, these fans can be used in hazardous environments with combustible gases and dust to draw stagnant and humid air out through your roof, forcing it up and away from its surface.