Cobra Attic Ventilation

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.

Cobra attic ventilation.

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. This attic requires 17 linear feet of cobra exhaust vent to meet fha minimum requirement. Available in both hand nail and nail gun versions its shingle over design helps it blend into the ridge line. Insulation at least r 38 or more is there for heating and.

Inches of nfa per linear foot 288 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. 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. Ridge vent must me installed per the manufactures instructions.

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. 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. 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.

Calculate of linear feet of cobra exhaust vent. It can do both. Effective attic ventilation systems reduce damaging heat and moisture in your attic promote energy efficiency by helping to reduce the load on your air conditioner in the summer and also reduce the risk of ice dam formation on your roof. Best ventilation is open soffit venting to a open vented ridge vent.

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.