Rotary Turbine Ventilators

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Base Diameter

Airflow @ Wind Speed

1,000 ft³/min @ 4 mph

1,200 ft³/min @ 4 mph

1,700 ft³/min @ 4 mph

2,350 ft³/min @ 4 mph

2,700 ft³/min @ 4 mph

4,000 ft³/min @ 4 mph

Material

Thickness

RoHS

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

REACH

Height

Overall Height

Base Width

Outlet Diameter

Base Type

For Roof Pitch

132 Products

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.

	Overall Ht.	Airflow @ Wind Speed	Thk.	Max. Temp., ° F		Each
Galvanized Steel



	6"	14 1/2"	145 ft³/min @ 4 mph	0.018"	150	0000000	0000000


	8"	15 1/2"	255 ft³/min @ 4 mph	0.018"	150	0000000	000000
	10"	16 3/4"	425 ft³/min @ 4 mph	0.018"	150	0000000	000000
	12"	17 1/4"	630 ft³/min @ 4 mph	0.024"	150	0000000	000000
	14"	20"	700 ft³/min @ 4 mph	0.024"	150	0000000	000000
	16"	22 1/2"	950 ft³/min @ 4 mph	0.024"	150	0000000	000000
	18"	24"	1,200 ft³/min @ 4 mph	0.024"	150	0000000	000000
	20"	24 1/2"	1,700 ft³/min @ 4 mph	0.024"	150	0000000	000000
	24"	29 1/2"	2,350 ft³/min @ 4 mph	0.024"	150	0000000	000000
	30"	32"	2,700 ft³/min @ 4 mph	0.03"	150	0000000	000000
	36"	38"	4,000 ft³/min @ 4 mph	0.03"	150	0000000	000000


	Stainless Steel



			6"	14 1/2"	110 ft³/min @ 4 mph	0.018"	150	0000000	000000


			8"	15 1/2"	195 ft³/min @ 4 mph	0.018"	150	0000000	000000
			10"	16 3/4"	305 ft³/min @ 4 mph	0.018"	150	0000000	000000
			12"	17 1/4"	440 ft³/min @ 4 mph	0.024"	150	0000000	000000
			14"	20"	600 ft³/min @ 4 mph	0.024"	150	0000000	000000
			16"	22 1/2"	790 ft³/min @ 4 mph	0.024"	150	0000000	000000
			18"	24"	1,000 ft³/min @ 4 mph	0.024"	150	0000000	000000
			20"	24 1/2"	1,200 ft³/min @ 4 mph	0.024"	150	0000000	000000
			24"	29 1/2"	1,700 ft³/min @ 4 mph	0.024"	150	0000000	000000

Mounting Bases


Flat Base	Straight Base

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
8"	10"	10"	4"	Galvanized Steel	0000000	000000	0000000	000000	0000000	0000000
10"	12"	10"	4"	Galvanized Steel	0000000	00000	0000000	00000	0000000	000000
12"	14"	10"	4"	Galvanized Steel	0000000	00000	0000000	00000	0000000	000000
14"	16"	10"	4"	Galvanized Steel	0000000	00000	0000000	000000	0000000	000000
16"	18"	10"	4"	Galvanized Steel	0000000	000000	0000000	000000	0000000	000000
18"	22"	10"	4"	Galvanized Steel	0000000	000000	0000000	000000	0000000	000000
20"	24"	10"	4"	Galvanized Steel	0000000	000000	0000000	000000	0000000	000000
24"	30"	12"	4"	Galvanized Steel	0000000	000000	0000000	000000	0000000	000000

Mounts for Wind-Driven Roof-Mount Exhaust Fans


Flat Base	Straight Base

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"	Square	0000000	000000	0000000	000000	1/12 , 2/12 , 3/12 , 4/12 , 5/12 , 6/12 , 7/12 , 8/12 , 9/12 , 10/12 , 11/12	0000000	0000000


		10"	12"	10"	4"	Square	0000000	00000	0000000	00000	1/12 , 2/12 , 3/12 , 4/12 , 5/12 , 6/12 , 7/12 , 8/12 , 9/12 , 10/12 , 11/12	0000000	000000
		12"	14"	10"	4"	Square	0000000	00000	0000000	00000	1/12 , 2/12 , 3/12 , 4/12 , 5/12 , 6/12 , 7/12 , 8/12 , 9/12 , 10/12 , 11/12	0000000	000000
		14"	16"	10"	4"	Square	0000000	00000	0000000	000000	1/12 , 2/12 , 3/12 , 4/12 , 5/12 , 6/12 , 7/12 , 8/12 , 9/12 , 10/12 , 11/12	0000000	000000
		16"	18"	10"	4"	Square	0000000	000000	0000000	000000	1/12 , 2/12 , 3/12 , 4/12 , 5/12 , 6/12 , 7/12 , 8/12 , 9/12 , 10/12 , 11/12	0000000	000000
		18"	22"	10"	4"	Square	0000000	000000	0000000	000000	1/12 , 2/12 , 3/12 , 4/12 , 5/12 , 6/12 , 7/12 , 8/12 , 9/12 , 10/12 , 11/12	0000000	000000
		20"	24"	10"	4"	Square	0000000	000000	0000000	000000	1/12 , 2/12 , 3/12 , 4/12 , 5/12 , 6/12 , 7/12 , 8/12 , 9/12 , 10/12 , 11/12	0000000	000000
		24"	30"	12"	4"	Square	0000000	000000	0000000	000000	1/12 , 2/12 , 3/12 , 4/12 , 5/12 , 6/12 , 7/12 , 8/12 , 9/12 , 10/12 , 11/12	0000000	000000