Roof Curb Louvers | McMaster-Carr

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22 Products

Roof-Mount Louvers

These louvers are gravity operated. The blades open when your roof-mounted exhaust fan goes on and close when it's off, preventing backdrafts. The felt seal on the face of the blades ensures quiet closing and better protection from the weather.

Also Available: Additional louver sizes. Please select 8061T999 and specify louver dimensions.

Surface Mount


	Surface Mount	Exhaust Fan Mounts

Exhaust Fan Mounts—Exhaust fan mounts are sold separately. Louvers fit the bottom of the mount and must be secured to the lip of the mount's base with sheet metal screws (not included).

	Louvers											8" High Exhaust Fan Mounts			12" High Exhaust Fan Mounts
	For Opening		Overall
	Wd.	Ht.	Wd.	Lg.	Blade Thk.	No. of Panels	For Max. Air Velocity, fpm	Temp. Range, ° F	Mounting Fasteners Included		Each	Inside Wd.		Each	Inside Wd.		Each
Galvanized Steel Frame and Aluminum Blades



		13 3/4"	13 3/4"	13 3/4"	13 3/4"	0.016"	1	2,000	-40 to 180	No	8061T3	000000	14 1/2"	2230K11	0000000	14 1/2"	2230K64	0000000


		15 3/4"	15 3/4"	15 3/4"	15 3/4"	0.016"	1	2,000	-40 to 180	No	8061T5	00000	16 1/2"	2230K13	000000	16 1/2"	2230K31	000000
		17 3/4"	17 3/4"	17 3/4"	17 3/4"	0.016"	1	2,000	-40 to 180	No	8061T9	00000	—	———	0	19 1/2"	2230K33	000000
		19 3/4"	19 3/4"	19 3/4"	19 3/4"	0.016"	1	2,000	-40 to 180	No	8061T14	00000	21 1/2"	2230K16	000000	—	———	0
		21 3/4"	21 3/4"	21 3/4"	21 3/4"	0.016"	1	2,000	-40 to 180	No	8061T16	00000	—	———	0	23 1/2"	2230K35	000000
		23 3/4"	23 3/4"	23 3/4"	23 3/4"	0.016"	1	2,000	-40 to 180	No	8061T19	00000	—	———	0	25 1/2"	2230K36	000000
		27 3/4"	27 3/4"	27 3/4"	27 3/4"	0.016"	1	2,000	-40 to 180	No	8061T26	000000	—	———	0	28 1/2"	2230K39	000000
		34 3/4"	34 3/4"	34 3/4"	34 3/4"	0.016"	1	2,000	-40 to 180	No	8061T28	000000	35 1/2"	2230K63	000000	35 1/2"	2230K94	000000
		36 3/4"	36 3/4"	36 3/4"	36 3/4"	0.016"	1	2,000	-40 to 180	No	8061T29	000000	—	———	0	37 1/2"	2230K45	000000

Motor Kits for Louvers with Galvanized Steel Frames

Image of Product. Front orientation. Louver Motors.

Motor kits for louvers let you open louvers when you’re not running your exhaust fan but still want to let air flow into your ventilation system.

			Overall
Includes	Voltage, V AC	Electrical Phase	Lg.	Wd.	Ht.	Mounting Fasteners Included		Each
Motor, Motor-to-Louver Arm, Mounting Bracket	120/240	Single	7 3/8"	4 1/2"	8 1/2"	Yes	8061T401	0000000