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    16 Products

    Wind-Driven Roof-Mount Exhaust Fans

    Image of Product. Front orientation. Contains Annotated. 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. They are also known as turbine ventilators. Mount fans on your roof away from wind obstructions.
    Base
    Dia.
    Overall
    Ht.
    Airflow @ Wind Speed
    Thk.
    Max. Temp.,
    ° F
    Each
    Galvanized Steel
    20"24 1/2"1,700 ft³/min @ 4 mph0.024"1501992K230000000
     
    Stainless Steel
    20"24 1/2"1,200 ft³/min @ 4 mph0.024"1501992K54000000
     
    Mounting Bases
    Image of Product. Flat Base. Front orientation. Contains Annotated. Exhaust Fan Mounts. Wind-Driven Roof-Mount Exhaust Fans , Flat Bases.
    Image of Product. Straight Base. Front orientation. Contains Annotated. Exhaust Fan Mounts. Wind-Driven Roof-Mount Exhaust Fans , Straight Bases.

    Flat Base

    Straight Base

    Image of Product. Slope Base. Front orientation. Contains Annotated. Exhaust Fan Mounts. Wind-Driven Roof-Mount Exhaust Fans , Slope Bases.
    Image of Attribute. Front orientation. Contains Annotated. Exhaust Fan Mounts. Wind-Driven Roof-Mount Exhaust Fans .

    Slope Base

    All bases have a square bottom, round top, and flashing to simplify installation.
    To Order: For slope bases, please specify pitch: 1/12-11/12 in increments of 1/12. To determine pitch, use an angle indicator or divide rise by run (see illustration). For instance, if your roof rises 5" in 12" of horizontal space, your pitch is 5/12.
    Flat Bases
    Straight Bases
    Slope Bases
    Outlet
    Dia.
    Base
    Wd.
    Ht.
    Flashing
    Wd.
    Material
    Each
    Each
    Each
    20"24"10"4"Galvanized Steel2003K9700000002003K5700000002003K370000000
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