Roof Louvers

Description

These covered openings allow air to escape the attic. Several of these vents are usually required to properly ventilate the attic. They should be placed evenly across the roof. Choose from metal or plastic in round, square or slant-back designs.

Slant-Back Metal Roof Vents

Feature heavy-duty aluminum construction
Large flange for easy installation
Provide 50 square inches of net free area per piece

For 3/12 to 12/12 roof pitch
Colors: Gray, Brown, Black, Weatherwood and Galvanized

SLA Slant Aluminum

1-piece base and throat is weather tight and adds strength
Large flange for easy installation
Provide 50 square inches of net free area per piece
NFA (square inches): 50/pc.
Optional filter available

RVG40 Slant Back

Galvanized
Low profile, compact vent
NFA (square inches): 40/pc.
7 1/2" round opening

RVG55 Slant Galvanized

Heavy-duty galvanized construction
NFA (square inches): 50/pc.
9" round opening
Optional filter available

RVA 50 / RVG 50 Slant Back

Aluminum or galvanized
NFA (square inches): 50/pc.
8" round opening
Optional filter available

Slant-Back Plastic Roof Vents

Constructed of high-impact plastic with UV inhibitors
Flashing dimensions: 17" x 18"
Provide 61 square inches of net free area per piece

For 3/12 to 12/12 roof pitch
Fully screened with rain diverter
Colors: Brown, Black, White, Gray and Weatherwood

SLP150 Slant Back Plastic

24″ x 24″ flashing
NFA (square inches): 150/pc.
13″ x 13″ square opening
Integral, molded screen
Fits 3/12 to 12/12 roof pitch
Colors: Black and Weatherwood

SLP61 Slant Back Plastic

16.5″ x 19.5″ flashing
NFA (square inches): 61/pc.
9″ round opening

tdi logo

Square Metal Roof Vents

Hood & throat designed to maximize airflow
All aluminum or galvanized steel rust resistant construction
For 3/12 to 12/12 roof pitch

Heavy, rust-free integral screen
Provide 50 square inches of net free area per piece
Colors: Mill, Brown, Black, Weatherwood and Galvanized

RVG53 High Collar

High Collar galvanized steel vent for use with tile roofs or wood shake shingles
NFA (square inches): 50/pc.

RVA51 / RVG51 Square

Aluminum or galvanized
Hood and throat designed to maximize airflow
Heavy, rust-free integral screen
NFA (square inches): 50/pc.

Round Metal and Plastic Roof Vents

Galvanized steel dome; also available with a high-impact plastic dome
15" diameter roof opening dimension
Flashing dimension: 24" x 24"

For 3/12 to 8/12 roof pitch
Provide 144 square inches of net free area per piece
Colors: Mill, Black, Brown, and Weatherwood (galvanized steel) and Gray (plastic)

B-144 Metal Dome

Galvanized steel
24" x 24" flashing
NFA (square inches): 144/pc.

B-144 Plastic Dome

Round plastic
24" x 24" flashing
NFA (square inches): 144/pc.

Square Plastic Roof Vents

Made of heavy-duty plastic
Extra large square hood design
Flashing dimension: 17" x 18"
Provide 61 square inches of net free area per piece

For 3/12 to 8/12 roof pitch
Weather deflector helps eliminate infiltration of rain and snow
Colors: Brown, Black, White, Gray and Weatherwood

RVP Square Plastic

17" x 18" flashing
NFA (square inches): 61/pc.
Rain diverter throat
9" round opening

pdf Product Brochure (757 KB)

ShadowHawk Low-Profile

NFA: 72 sq. in. / pc. - Competition is roughly 26 NFA based on accredited 3rd party testing
Application: exhaust vent or intake vent
Low profile with shingle-over ability
Internal weather filter and screen for added protection

Capable of being installed on multiple sides of the roof
External wind baffle for enhanced exhaust capabilities
Made of galvanized steel

View additional product information here

Specifications

SPECIFICATIONS

HOW TO SPECIFY NON-POWERED ROOF VENTS

View the wide range of colors in which our products are available in our pdf color chart (12 KB).

	Color	Model	Part No.	Pcs/Ctn	Ctns/Pallet
Airhawk RVG 55 Slant Galvanized	Mill	RVG55ML	RVG55006	6	12
	Black	RVG55BL	RVG55016	6	12
	Brown	RVG55BR	RVG55086	6	12
	Weatherwood	RVG55WW	RVG550G6	6	12

Airhawk RVG 51 Square Galvanized	Mill	RVG51ML	RVG5100	9	15
	Black	RVG51BL	RVG51010	9	15
	Brown	RVG51BR	RVG51080	9	15
	Weatherwood	RVG51WW	RVG510G0	9	15

Airhawk RVG 53 Square High Collar Galvanized	Mill	RVG53HCO	RVG53HC00	6	12

Airhawk RVG 40 Slant Galvanized	Mill	RVG40ML	RVG40000	9	24
	Black	RVG40BL	RVG40010	9	24
	Brown	RVG40BR	RVG40080	9	24
	Weatherwood	RVG40WW	RVG400G0	9	24

Airhawk RVG 50 Slant Galvanized	Mill	RVGLFMF	RVGL50F00	10	16
Filtered	Black	RVGLFBL	RVGL50F10	10	16
	Brown	RVGLFBR	RVGL50F80	10	16
	Weatherwood	RVGLFWW	RVGL50FG0	10	16

Airhawk B-144 Galvanized Metal Dome	Mill	B144MF	97690	1	30
	Black	B144BK	97692	1	30
	Brown	B144BR	97693	1	30
	Weatherwood	B144WW	97691	1	30

Airhawk SLA Slant Aluminum	Gray	SLAGR	85281	6	12
	Black	SLABL	85282	6	12
	Brown	SLABR	85283	6	12
	Weatherwood	SLAWW	85284	6	12
	White	SLAWH	85285	6	12

Airhawk RVA 51 Square Vent Aluminum	Mill	RVA51ML	RVA510000	12	15
	Black	RVA51BL	RVA510100	12	15
	Brown	RVA51BR	RVA510800	12	15
	Weatherwood	RVA51WW	RVA510G00	12	15

Airhawk RVAL Slant Back Aluminum	Mill	RVA50ML	RVAL5000	10	16
	Black	RVA50BL	RVAL5010	10	16
	Brown	RVA50BR	RVAL5080	10	16
	Weatherwood	RVA50WW	RVAL50G0	10	16


Airhawk SLP61 Slant Back Plastic	Black	SLP61BL	90121	6	24
	Brown	SLP61BR	90122	6	24
	Gray	SLP61GR	90123	6	24
	Weatherwood	SLP61WW	90125	6	24

Airhawk SLP150 Slant Back Plastic	Black	SLP150BL	90141	2	21
	Weatherwood	SLP150WW	90145	2	21

Airhawk B-144 Plastic Dome	Gray	B144GR	97695	1	30

Square Top Plastic Roof Louver RVP61	Black	RVP61BL	90155	10	16
	Brown	RVP61BR	90156	10	16
	Gray	RVP61GR	90157	10	16
	Weatherwood	RVP61WW	90159	10	16

ShadowHawk Low-Profile Vent	Mill	LPG72ML	85401	2	24
	Black	LPG72BL	85402	2	24
	Brown	LPG72BR	85403	2	24
	Weatherwood	LPG72WW	85404	2	24

According to federal guidelines, homes require 1 square foot of net free area (the total unobstructed area through which air can enter or exhaust a non-powered vent) for every 150 square feet of attic floor space. If balanced between intake and exhaust vents, the requirement is 1 square foot of net free area for every 300 square feet of attic floor space.

NON-POWERED ROOF VENTS

Type	Net Free Area (Sq. In.)	Roof Pitch
Square Metal Roof Vent	50/pc.	3/12 to 8/12
Square Plastic Roof Vent	61/pc.	3/12 to 8/12
Round Galvanized Steel Roof Vent	144/pc.	3/12 to 8/12
Round Plastic Roof Vent	144/pc.	3/12 to 8/12
Slant-Back Metal Roof Vent	50/pc.	3/12 to 12/12
Slant-Back Plastic Roof Vent	61/pc.	3/12 to 12/12
Large Slant-Back Plastic Roof Vent	150/pc.	3/12 to 12/12
Wind Turbines	95/12" turbine 132/14" turbine	3/12 to 12/12 3/12 to 12/12
ShadowHawk Low-Profile	72	3/12 to 12/12

MINIMUM NUMBER OF NON-POWERED VENTILATORS NEEDED
(If ventilation is split between soffit and ridge)

Net Free Area Required (Square Inches)
	240	480	720	960	1200	1440
Attic Square Footage							Type of Vent
	500	1000	1500	2000	2500	3000
EXHAUST PRODUCTS
	3	5	8	10	12	15	roof vent (50 sq. in. net free area per piece)
	2	4	6	8	10	12	roof vent (61 sq. in. net free area per piece)
	1	3	4	5	6	7	12" wind turbine
	1	2	3	4	4	5	14" wind turbine
INTAKE PRODUCTS
	5	9	13	18	22	26	16" x 4" undereave
	3	6	9	12	15	18	16" x 6" undereave
	3	5	7	9	11	13	16" x 8" undereave
	2	4	5	7	9	10	8' continuous soffit vent
	2	3	4	6	7	8	10' vented drip edge