When installed as part of a properly balanced 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.
R r roof vent turtle type.
This means they have no moving parts.
By understanding the basic form and function of each type of vent you can better choose the system that will ultimately provide your home with the most efficient level of ventilation possible.
Turtle vents turtle vents also known as louvers are box like vents that are installed as close to the ridge as possible.
The vent is installed over a hole cut out of the roof.
They should be used in pairs with one on each side of the roof to facilitate air movement.
The slightest wind turns the vent which in turn draws air from the attic.
As air comes in through the soffit vents the warmest air will rise up to the ridge.
Utilizing natural convection they create an opening for the rising hot air and moisture to escape through.
Common on many roofs the vent top spins on ball bearings.
Also called turtle vents they provide curved openings on roof slopes.