GAF Cobra® Fascia Vent
Attic Intake Ventilation on a Coil!

Protect Your Roof From Premature Deterioration By Providing Effective Attic Intake Ventilation.

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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 Cobra® fascia vent is a key part of the GAF-Elk Smart Choice® Roof System Solution, and has even earned the prestigious Good Housekeeping Seal.

Homeowner’s Best Choice

  • Great Solution…
    Provides excellent air intake in homes without soffits.
     
  • Safeguards Possessions…
    Limits mold growth and condensation by allowing cooler air to enter through fascia, forcing heat out at the roof’s exhaust vents.
     
  • Looks Terrific…
    Virtually hidden at the bottom of your home’s fascia for a clean and finished look.
     
  • Protects Your Home…
    Helps to prevent wood rot and extend the life of your exterior paint.
     
  • Safer…
    Cobra® fascia vent provides superior air intake, while helping to protect your attic space from insects, birds, and other unwanted infiltration.

Professional’s Best Choice

  • Conveniently Packaged…
    Two 50-foot sections packaged in roll form for easier handling.
     
  • Easy To Install…
    Just unroll and nail in place.
     
  • Faster Applications…
    Cobra® fascia vent is easily cut with standard utility knives.
     
  • Use Anywhere…
    Can be used on both wood and metal fascia systems, as well as low and steep slope applications.
     
  • Sizes For Virtually Every Fascia…
    Available in both 1" x 3" x 50' and 1 1/2" x 3"x 50' models for coverage on any fascia.
     
  • Great Ventilator…
    Net Free Area: 1" x 3": 11 sq. inches per foot 1 1/2" x 3": 16 sq. inches per foot

Balanced Ventilation Requirements

Balanced ventilation requires an equal amount of intake ventilation and exhaust ventilation. GAF-Elk 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® fascia vent that is needed.
     
  2. Find the appropriate amount of Cobra® fascia vent and minimum exhaust ventilation that corresponds to the total attic square footage.
Based on 1/300 Rule
Total
Attic Square
Footage
Recommended Length of Cobra Fascia
Vent (Feet)*
Minimum Exhaust Ventilation (Net Free Area in Sq. In.)
1600
35/24
384
1900
42/29
456
2200
48/33
528
2500
55/38
600
2800
61/42
672
3100
68/47
744
3400
74/51
816

*First figure pertains to 1" width, second figure pertains to 1 1/2" width.

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.

Application Instructions

Cobra® Fascia Vent

Application Instructions

 

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Rated #1 in Quality By
Professional Home Builders!