Cobra Attic Ventilation

This attic requires 17 linear feet of cobra exhaust vent to meet fha minimum requirement.

Cobra attic ventilation.

When installed as part of a properly balanced attic ventilation system gaf cobra rigid vent 3 is a rigid style shingle over exhaust vent installed at the roof ridge that helps exhaust excess heat and moisture from your attic while resisting wind driven rain infiltration. One last thought attic ventilation is not there to get rid of heat it is there to get rid of excess moisture accumulating from the home. Proper attic ventilation consists of a balance between air intake at your eaves soffits or fascias and air exhaust at or near your roof ridge. Federal housing authority recommends a minimum of at least 1 square foot of attic ventilation evenly split between intake and exhaust for every 300 square feet of attic floor space.

Available in both hand nail and nail gun versions its shingle over design helps it blend into the ridge line. Step 4 cap shingle installation install the cap shingles directly to the vent using included 3 ring shank nails provided only with cobra snow country advanced ª and cobra rigid vent 3 ª for cobra snow country ª and c obra rigid vent 2 ª nails must be of sufficient length to penetrate through plywood decks or at least 3 4 into wood planks a nail line is inscribed on the top. Divide the square inches of nfa needed at the ridge by the nfa of the cobra exhaust vent cobra exhaust vent has 16 9 sq. When installed as part of a properly balanced attic ventilation system gaf cobra exhaust vent is a shingle over exhaust vent installed at the roof ridge that helps exhaust excess heat and moisture from your attic.

Insulation at least r 38 or more is there for heating and. It comes on an easy to install flexible mesh roll and is hand nailable with no complicated fitting wrapping nail gun adapters. See the benefits of attic ventilation a new roof is more than just shingles. Here s a look at the gaf cobra ridge vent attic exhaust vent installed with 4 sections https amzn to 2pdescw https amzn to 2smprxm.

Inches of nfa per linear foot 288 sq. It can do both. Calculate of linear feet of cobra exhaust vent. The original cobra ridge vent protecting millions of homes comes on a mesh roll for fast and easy installation with no complicated fitting wrapping nail gun adapters connectors or end plugs needed.

16 9 17 linear feet.