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Air Exhaust Roof Louver | 12″ Diameter 1″ Tall Collar PV-12-C01


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Brand: Active VentilationUPC(GTIN): 843951002170 SKU: PV-12-C01 Category:
Roof Louver - Pop Vent for Exhaust PV-12-C1-Weatherwood
Roof Louver - Pop Vent for Exhaust PV-12-C1-cutaway-and-measurements
Roof Louver - Pop Vent for Exhaust PV-12-C1-Black
Our Roof Louver, The Pop Vent for Exhaust Painted Brown
Roof Louver - Pop Vent for Exhaust PV-14-C1-AL-angle
Roof Louver - Pop Vent for Exhaust PV-12-W6-angle

Basic dimensions of the Pop Vent and it’s identifying attributes. Primary identifying dimensions of vents and fans are the inside diameter of the Head, which equals the diameter of the hole being vented, and the height of the Collar which is the solid tube between the Head of the vent and the Flange which attaches to the roof.

Inside Diameter:

12 in.
30.5 cm.

Outside Diameter:

16 in.
40.6 cm.

Square Flange (side length):

18 in.
45.7 cm.

Height of Head:

5 in.
12.7 cm.

Collar Height:

1 in.
2.5 cm.

Height of Flange:

0 in.
0 cm.

Total Height with Collar and Flange:

6 in.
15.2 cm.

Louvers are the vertical openings in the vent, which facilitates the flow of air, while keeping animals, insects, debris, and embers out.

Louver Height (inside):

3.375 in.
8.6 cm.

Number of Louver Rows (inside):


Louver Height (outside):

1.125 in.
2.9 cm.

Size of opening btwn blades (inside):

0.125 in.
0.3175 cm.

Size of opening btwn blades (outside):

0.125 in.
0.3175 cm.

Expected snow and rain in your region and the pitch of the roof are the key consideration when choosing the height of the collar of your roof vents. Zones 1 and 2 are not expected to sustain significant snow packs, while zones 3-7 are likely to experience snow, possibly for weeks or months. Vent collars under 4 inches are inappropriate for flat (0/12 pitch) roofs because even heavy rain can splash water into a shorter vent.

Map of Climate Zones

Minimum Pitch Capacity:


Maximum Pitch Capacity (Standard Vent):


Maximum Pitch Capacity (Modified):


Free Air Space:

113.1 sq. in.
729.7 sq. cm.

Free Air Space:

0.785 sq. ft.
0.073 sq. m.

1:150 Ventilation Rule:

235.62 sq. ft.
21.89 sq. m.

1:300 Ventilation Rule:

471.24 sq. ft.
43.78 sq. m.

Installation Guides Under Development. Coming Soon.

Click the Logo to see the full documentation of Active Ventilation Products approvals on the Florida DBPR web site.
Florida Approval

Active Ventilation Products Pop Vent series has been tested and approved by the State of Florida

Our Pop Vents have UL Certification. Check out other details and specifics on

UL Product IQ™ (Note: UL now requires you to have a free account to access this page)
UL’s Online Certifications Directory.

Texas Department of Insurance - Letterhead

Link to TDI Approval Document, from their web site

Texas Department of Insurance - Evaluation Program

Texas Department of Insurance - Pop Vent Chart

Actual Package Weight 8 lbs
Dimensions 18 × 18 × 10 in
UPS Dimensional (Billable) Weight 24 lbs

Active Ventilation Products

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Active Ventilation Products roof louver product line, the Pop Vent, is excellent for venting attic spaces on shingled sloped roofs. Pop Vent Model PV-12-C1-WD is a 12 in. Dia roof vent with a 1 in. collar height and an 18 in. x 18 in. sq. flange. It is powder coated with an electrostatic charge in weatherwood semi-gloss finish. The powder coating finish adheres extremely well and is more difficult to remove than wet paint which adds to the vents durability and long lasting clean appearance. Model PV-12-C1-WD will alleviate moisture in the winter and heat in the summer to extend the life of the roof and building structure. The Pop Vent roof louver product line has a manufactured one piece spun aluminum cap that is leak proof and corrosion resistant. It’s designed for superior exhausting performance. Its round covered vent cap has a lower louver section. This lower louver allows hot air to escape freely and efficiently, never trapping it up in the vent cap. The Pop Vent roof louver models have additional vertical louvers in its inner cylinder to keep out birds, insects and animals that can clog the vent. The inner vertical louver allows air to exhaust without resistance. Its round aerodynamic design can with stand harsh weather and wind forces up to 200 MPH. The Pop Vent roof louver product line has proven to be the recommended choice for exhausting attic spaces.

  • Excellent choice to removing radiant heat from attic spaces
  • Helps to keep insulation dry in the winter
  • Weatherwood powder coating finish is significantly greater at resisting scratching, chipping and oxidation
  • Ventilation rule 1:300, application per sq. ft.: 450
  • Net free air space: 113 sq. in.
  • Pitch capacity range: 3/12 to 12/12
  • 1 in. clearance between bottom of vent cap and flange
  • Inner cylinder louver design does not allow accumulation of particle build up as found in using an insect screen
  • Built-in inner vertical louver cylinder has a 1/8th in. opening between the louver blades and all aluminum (“noncombustible”) material meets the requirements of California building code 706A.2 vents to resist the intrusion of burning embers and flame through ventilation openings
  • Helps to reduce energy costs