Gaf Cobra Attic Ventilation
It provides 18 sq.
Gaf 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. To calculate the amount of ventilation you need for your home visit gaf s ventilation calculator now. Proper attic ventilation can help reduce the load on your air conditioner. Inches per linear foot 19 051 mm 2 lm of net free ventilating area to help exhaust heat and moisture from the attic.
It provides 9 sq. Cobra rigid vent 3 exhaust vent for roof ridge allows heat and moisture to escape at the ridge. 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.