Cobra® Attic Ventilation

Poor Attic Ventilation Can Ruin Your Insulation, Destroy Your Shingles, And Potentially Raise Your Energy Bills!

Proper attic ventilation systems allow a continual flow of outside air through the attic, protecting the efficiency of the insulation and helping to lower temperatures in the living space.

It consists of a balance between air intake (at your eaves or soffits) and air exhaust (at or near your roof ridge).

The U.S. FHA (Federal Housing Administration) recommends a minimum of at least 1 square foot of attic ventilation (both intake and exhaust) for every 300 square feet of attic space. For example, if your attic is 900 square feet, you need a total of 3 square feet of ventilation. This amount should be divided equally between intake and exhaust ventilation (i.e., 1 1/2 feet of each) to insure proper air flow through the attic. To calculate the amount of ventilation you need for your home, visit GAF’s Ventilation Calculator .

Why Take Risks?

Many homes in North America do not have proper attic ventilation. Why? Because most people are unaware that attic ventilation can impact the longevity of their entire home!–

In the summer, improper ventilation can cause attic heat to build in excess of 160°F. This super-heated air eventually penetrates the ceiling insulation into the living area below.

Types of damage that can result include:
  • Premature aging of your roofing system (“fried” shingles)
  • Warping, cracking, or breaking down of wood framing
  • Damage to siding, exterior or interior paint, and wallpaper

A properly ventilated attic can help reduce the load on your air conditioner by moving the super-heated air out of your attic before it builds up and causes damage.

In the winter, various household appliances, bathtubs, showers, and cooking vapors can contribute to excess moisture build-up. Improperly ventilated attics will allow this moisture to collect and cling to the underside of the roof. The moisture will condense and fall, soaking the attic insulation and reducing its efficiency.

Additional structural damage can include:
  • Roof deck warping and rotting of the wood frame
  • Mildew growth
  • Buckling of shingles and felt

Finally, attics should be properly ventilated to help prevent ice dams in cold northern climates. During the winter, ice and snow on a roof will melt and run down the deck to the cooler eaves. This run-off can re-freeze, creating an ice dam that may force water back up under the shingles and leak into your home — causing hundreds or thousands of dollars of damage to your ceilings and walls. Adequate attic ventilation reduces the amount of initial melting that occurs on your roof, thereby reducing the chance that ice dams will form.


Cobra® Attic Ventilation


Cobra Exhaust Vent
Cobra® Exhaust Vent 
The original Cobra®Ridge Vent — protects over 2 million homes!

Cobra Snow CountryCobra®
Rigid Vent 3™
(Attic Exhaust Vent) 

Premium rigid-style vent — available in warmer climates. Includes 3″ ring shank nails for easy installation.

Cobra Ridge RunnerCobra®
Ridge Runner®
(Attic Exhaust Vent) 

The performance of a baffled rigid vent… with the ease of a roll!

Cobra Snow CountryCobra®
Snow Country™
(Attic Exhaust Vent) 

Quality rigid-style vent. Snow Guard filter helps resist snow infiltration. Available in colder climates.

Cobra Snow Country AdvancedCobra® Snow
Country™ Advanced
(Attic Exhaust Vent) 

Premium quality rigid-style vent. Snow Guardfilter helps resist snow infiltration. Includes 3″ ring shank nails for easy installation. Available in colder climates.

Cobra Hip VentCobra® Hip Vent (Attic Exhaust Vent) 
Safe and effective exhaust ventilation for homes with little or no ridge.

Cobra Fascia VentCobra®
Fascia Vent
(Attic Intake Vent)

Allows you to add attic intake ventilation when you have no soffits.

Cobra FasciaFlow VentCobra® IntakePro (Attic Intake Vent)
Allows you to add attic intake ventilation when you have no soffits.

Install Any GAF Lifetime Shingle & At Least 3 Qualifying GAF Accessories & You’ll Automatically Get: Golden Pledge® Ltd. Warranty from Core Exteriors, your local GAF factory-certified contractor! PLUS Non-prorated coverage for the first 20 years! Compare warranty choices.

GAF offers you many great Lifetime Shingle choices, including Timberline® Shingles with Advanced Protection® Shingle Technology. They’re the #1-selling shingles in North America!

Helps remove excess heat and moisture from your attic that can raise your energy bills, cause premature peeling of interior paint and wallpaper, and even affect your health.

Allows moisture to escape from your attic while providing an exceptionally strong layer of protection against wind-driven rain. Also, lies flatter for a better-looking roof.

Saves time, eliminates waste, and reduces the risk of blow-off…and may even help qualify for upgraded wind warranty coverage (see GAF Shingle & Accessory Ltd. Warranty† for details).

Provides exceptional protection against leaks caused by roof settling and extreme weather. Ideal upgrade at all vulnerable areas (including at the eaves in the North*).

Enhances the beauty of your home while guarding against leaks at the hips and ridges.

WE OFFER FINANCING UP TO 144 MONTHS AND 0% APR OPTIONS.

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