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    132 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
    6"14 1/2"145 ft³/min @ 4 mph0.018"1501992K120000000
    8"15 1/2"255 ft³/min @ 4 mph0.018"1501992K14000000
    10"16 3/4"425 ft³/min @ 4 mph0.018"1501992K16000000
    12"17 1/4"630 ft³/min @ 4 mph0.024"1501992K17000000
    14"20"700 ft³/min @ 4 mph0.024"1501992K18000000
    16"22 1/2"950 ft³/min @ 4 mph0.024"1501992K21000000
    18"24"1,200 ft³/min @ 4 mph0.024"1501992K22000000
    20"24 1/2"1,700 ft³/min @ 4 mph0.024"1501992K23000000
    24"29 1/2"2,350 ft³/min @ 4 mph0.024"1501992K24000000
    30"32"2,700 ft³/min @ 4 mph0.03"1501992K25000000
    36"38"4,000 ft³/min @ 4 mph0.03"1501992K27000000
     
    Stainless Steel
    6"14 1/2"110 ft³/min @ 4 mph0.018"1501992K43000000
    8"15 1/2"195 ft³/min @ 4 mph0.018"1501992K45000000
    10"16 3/4"305 ft³/min @ 4 mph0.018"1501992K47000000
    12"17 1/4"440 ft³/min @ 4 mph0.024"1501992K48000000
    14"20"600 ft³/min @ 4 mph0.024"1501992K49000000
    16"22 1/2"790 ft³/min @ 4 mph0.024"1501992K52000000
    18"24"1,000 ft³/min @ 4 mph0.024"1501992K53000000
    20"24 1/2"1,200 ft³/min @ 4 mph0.024"1501992K54000000
    24"29 1/2"1,700 ft³/min @ 4 mph0.024"1501992K55000000
     
    Mounting Bases

    Mounts for Wind-Driven Roof-Mount Exhaust Fans

    Image of Product. Flat Base. Front orientation. Contains Annotated. Exhaust Fan Mounts. Mounts for Wind-Driven Roof-Mount Exhaust Fans, Flat Base.
    Image of Product. Straight Base. Front orientation. Contains Annotated. Exhaust Fan Mounts. Mounts for Wind-Driven Roof-Mount Exhaust Fans, Straight Base.

    Flat Base

    Straight Base

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

    Slope Base

    All mounts have a square bottom, round top, and flashing to simplify installation.
    To Order: For slope-base mounts, 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 Base
    Straight Base
    Slope Base
    Outlet
    Dia.
    Base
    Wd.
    Ht.
    Flashing
    Wd.
    Bottom
    Shape
    Each
    Each
    Choose a Roof Pitch
    Each
    Galvanized Steel
    8"10"10"4"Square2003K910000002003K51000000
    1/12
    ,
    2/12
    ,
    3/12
    ,
    4/12
    ,
    5/12
    ,
    6/12
    ,
    7/12
    ,
    8/12
    ,
    9/12
    ,
    10/12
    ,
    11/12
    2003K310000000
    10"12"10"4"Square2003K92000002003K5200000
    1/12
    ,
    2/12
    ,
    3/12
    ,
    4/12
    ,
    5/12
    ,
    6/12
    ,
    7/12
    ,
    8/12
    ,
    9/12
    ,
    10/12
    ,
    11/12
    2003K32000000
    12"14"10"4"Square2003K93000002003K5300000
    1/12
    ,
    2/12
    ,
    3/12
    ,
    4/12
    ,
    5/12
    ,
    6/12
    ,
    7/12
    ,
    8/12
    ,
    9/12
    ,
    10/12
    ,
    11/12
    2003K33000000
    14"16"10"4"Square2003K94000002003K54000000
    1/12
    ,
    2/12
    ,
    3/12
    ,
    4/12
    ,
    5/12
    ,
    6/12
    ,
    7/12
    ,
    8/12
    ,
    9/12
    ,
    10/12
    ,
    11/12
    2003K34000000
    16"18"10"4"Square2003K950000002003K55000000
    1/12
    ,
    2/12
    ,
    3/12
    ,
    4/12
    ,
    5/12
    ,
    6/12
    ,
    7/12
    ,
    8/12
    ,
    9/12
    ,
    10/12
    ,
    11/12
    2003K35000000
    18"22"10"4"Square2003K960000002003K56000000
    1/12
    ,
    2/12
    ,
    3/12
    ,
    4/12
    ,
    5/12
    ,
    6/12
    ,
    7/12
    ,
    8/12
    ,
    9/12
    ,
    10/12
    ,
    11/12
    2003K36000000
    20"24"10"4"Square2003K970000002003K57000000
    1/12
    ,
    2/12
    ,
    3/12
    ,
    4/12
    ,
    5/12
    ,
    6/12
    ,
    7/12
    ,
    8/12
    ,
    9/12
    ,
    10/12
    ,
    11/12
    2003K37000000
    24"30"12"4"Square2003K980000002003K58000000
    1/12
    ,
    2/12
    ,
    3/12
    ,
    4/12
    ,
    5/12
    ,
    6/12
    ,
    7/12
    ,
    8/12
    ,
    9/12
    ,
    10/12
    ,
    11/12
    2003K38000000
     
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