Roof-Mount Ventilator Bases

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24 Products

Mounts for Wind-Driven Roof-Mount Exhaust Fans


Flat Base	Straight Base

Slope Base

Position wind-driven exhaust fans on rooftops so the fan outlet clears the roof surface. Made of galvanized steel, these mounts resist corrosion from prolonged outdoor exposure. Integrated flashing seals the roof penetration against rain and moisture.

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	2003K91	000000	2003K51	000000	1/12, 2/12, 3/12, 4/12, 5/12, 6/12, 7/12, 8/12, 9/12, 10/12, 11/12	2003K31	0000000


		10"	12"	10"	4"	Square	2003K92	00000	2003K52	00000	1/12, 2/12, 3/12, 4/12, 5/12, 6/12, 7/12, 8/12, 9/12, 10/12, 11/12	2003K32	000000
		12"	14"	10"	4"	Square	2003K93	00000	2003K53	00000	1/12, 2/12, 3/12, 4/12, 5/12, 6/12, 7/12, 8/12, 9/12, 10/12, 11/12	2003K33	000000
		14"	16"	10"	4"	Square	2003K94	00000	2003K54	000000	1/12, 2/12, 3/12, 4/12, 5/12, 6/12, 7/12, 8/12, 9/12, 10/12, 11/12	2003K34	000000
		16"	18"	10"	4"	Square	2003K95	000000	2003K55	000000	1/12, 2/12, 3/12, 4/12, 5/12, 6/12, 7/12, 8/12, 9/12, 10/12, 11/12	2003K35	000000
		18"	22"	10"	4"	Square	2003K96	000000	2003K56	000000	1/12, 2/12, 3/12, 4/12, 5/12, 6/12, 7/12, 8/12, 9/12, 10/12, 11/12	2003K36	000000
		20"	24"	10"	4"	Square	2003K97	000000	2003K57	000000	1/12, 2/12, 3/12, 4/12, 5/12, 6/12, 7/12, 8/12, 9/12, 10/12, 11/12	2003K37	000000
		24"	30"	12"	4"	Square	2003K98	000000	2003K58	000000	1/12, 2/12, 3/12, 4/12, 5/12, 6/12, 7/12, 8/12, 9/12, 10/12, 11/12	2003K38	000000