The first step is to check out this 60 second video and learn about the 300 1 rule the difference between intake and exhaust ventilation and why proper ventilation is so important to get right to help calculate your attic ventilation needs visit gaf ventilation calculator.
How to install gaf roof ridge vent.
There are a number of key steps you need to take to avoid mucking this part up.
Attach the other side of the vent to the opposite side of the ridge to fully secure the vent.
Rotate nail to vertical position for easy removal figure e.
Rotate nail to vertical position for easy removal figure e.
Ridge vent installation place center and conform the cobra 4 rigid vent over the slot with the vent resting firmly against the roof surface.
Intake and ridge vents working together are best.
Grasp attached nails by the head and peel back.
This video shows clips of a reroofing job which included ridge vent installation.
Place center and conform the cobra 4 1 21 m plastic ridge vent over the slot with the vent resting firmly against the roof surface.
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Grasp attached nails by the head and peel back.
Place the shingle over ridge vent along the reference line and nail the ridge vent to the decking along that side as directed by the manufacturer.
This is an area of the roof which requires extra care and skill.
Install asphalt shingle caps over the vent using the nails recommended by the manufacturer.
Gaf mastering the roof chapter 15 90 of homes in north america are inadequately ventilated.
For cobra snow country advanced and cobra rigid vent 3 only use the e z nail system.
For cobra snow country advanced ª and cobra rigid vent 3 ª only use the e z nail ª system.