Gaf | cobra ridge runner roof ridge vent (attic exhaust vent), Cobra® ridge runner™ exhaust vent for roof ridge features easytear™ that allows you to hand-tear product in 12 in. increments - no knives necessary!. Gaf | cobra rigid vent 3 roof ridge vent (attic exhaust vent), Cobra® rigid vent 3™ exhaust vent is a key part of the gaf lifetime roofing system, and has even earned the prestigious good housekeeping seal.. Roof ventilation - roof vents: choosing the right roof, Ridge venting is one method of roof venting we recommend to our customers often. the ridge vent allows constant, even, predictable roof or attic ventilation..
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