It provides 9 sq.
Gaf cobra attic ventilation.
Inches per linear foot 67 720 m 2 lm of net free ventilating area and its unique easytear sizing feature allows you to hand tear product in 3 76 mm increments no knives necessary and less waste.
Cobra rigid vent 3 exhaust vent for roof ridge allows heat and moisture to escape at the ridge.
To calculate the amount of ventilation you need for your home visit gaf s ventilation calculator now.
Get automatic lifetime protection on your entire gaf roofing system when you install any gaf lifetime shingle and at least 3 qualifying gaf accessories you ll automatically get a lifetime limited warranty on your shingles and all qualifying gaf accessories.
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.
Proper attic ventilation can help reduce the load on your air conditioner.
Cobra hip vent provides effective ventilation on hip roofs with little or no ridge area.