Cobra Vents - Cobra Rigid Vent 3

Cobra® Rigid Vent 3™ Attic Exhaust Vent for Roof Ridge

Effective attic ventilation is critical for a long-lasting roof!

A properly balanced attic ventilation system will help to:

  • Remove excess heat
    and moisture to protect your roof from premature deterioration

  • Prevent roof rot
    in your attic or roof deck

  • Minimize peeling
    and extend the life of exterior and interior paint

  • Limit the growth
    of harmful mold

  • Safeguard your attic
    possessions against mildew damage

  • Guard against ice damming
    in harsh winter climates

  • Possibly reduce
    excessive heating and air conditioning costs

Good Housekeeping

Cobra® Rigid Vent 3™ exhaust
vent is a key part of the GAF Lifetime Roofing System, and has even earned
the prestigious Good Housekeeping Seal.

 

Homeowner’s Best Choice


  • Vents Your Attic…
    Allows heat and condensation to escape at the most effective location — the ridge

  • Looks Terrific…
    Shingle-over design blends into your ridge line

  • Watertight…
    Passes the 110 mph wind-driven rain test

  • Insect Guard…
    Specially designed louver spacing helps keep insects out

  • Energy Efficient…
    May even reduce your utility bills!

  • Durable…
    Designed with high-impact polymers

  • Peace Of Mind…
    Up to a Lifetime ltd. warranty when installed on Lifetime Shingle roofs.

Professional’s Best Choice


  • Effective…
    Provides 18 sq. inches per linear foot of net free ventilating area

  • 3" Ring Shank Nails Included…
    Ensures proper fastening on every installation. They're also Miami-Dade County approved for corrosion resistance.

  • Easy Sizing…
    EasyTear™ feature allows you to hand-tear product in 3" increments — no knives necessary and less waste!

  • Fits Better…
    Extra-flexible hinge design allows installation on 3:12 to 16:12 sloped roofs

  • No End Caps Needed!

  • Crush Resistant…
    Internal structural support for added durability

  • No Gaps…
    Edge overhang allows smooth, continuous coverage between sections

  • Fewer Call-backs…
    External baffles help deflect wind and rain

  • Cap Shingle Compatible…
    Available in two widths to work with 12" or 10" ridge cap shingles

18 Vents or 10 Turbines


Lifetime Roofing Badge Miami Dade UL Classified
Texas Department of Insurance
Product Evaluation RV-29

Florida Building Code

ICC-ES ESR-1265


Balanced Ventilation Requirements

Balanced ventilation requires an equal amount of intake ventilation and exhaust ventilation. GAF recommends, at a minimum, providing 1 square foot of Net Free Ventilation for every 300 square feet of attic floor space. Consult local building codes for specific ventilation requirements in your area.

  1. Calculate the total square footage of the attic floor area (round up to the next highest number). This number will determine the minimum total linear feet of Cobra® Rigid Vent 3™ Exhaust Vent that is needed.
  2. Find the appropriate amount of Cobra® Rigid Vent 3™ Exhaust Vent and minimum intake ventilation that corresponds to the total attic square footage.
How Much Do I Need? (Based on 1/300 Rule)
Total Attic
Square Footage
Recommended Length of Cobra®
Rigid Vent 3™ Exhaust Vent (Feet)
Minimum Intake Ventilation
(Net Free Area in Sq. In.)
1600
22
396
1900
26
468
2200
30
540
2500
34
612
2800
38
684
3100
42
756
3400
46
828

Cobra® Rigid Vent 3™ Exhaust Vent has 18.0 sq. in./linear ft. of net free ventilating area.

NOTE: Always have a balanced ventilation system. In no case should the amount of exhaust ventilation at the ridge exceed the amount of soffit ventilation.



Documents

All documents are U.S. English unless otherwise noted

Get Automatic Lifetime Protection On Your Cobra® Rigid Vent 3™ and Your Entire GAF Roofing System!

YOU GET:
  • A Lifetime ltd. warranty... on your shingles and all qualifying GAF accessories! (See Details)
  • Non-prorated coverage for the first 10 years (See Details)
 

Professional Installation

GAF Roof Wizard
Virtual Home Remodeler
Product Pricing and Where to Buy