Box vents also called low profile vents louvers flat vents or turtle vents are static vents.
R r roof vent turtle type.
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.
Utilizing natural convection they create an opening for the rising hot air and moisture to escape through.
Turtle vents turtle vents also known as louvers are box like vents that are installed as close to the ridge as possible.
It comes on an easy to install flexible mesh roll and is hand nailable with no complicated fitting wrapping nail gun adapters.
This means they have no moving parts.
The vent is installed over a hole cut out of the roof.
The slightest wind turns the vent which in turn draws air from the attic.
Also called turtle vents they provide curved openings on roof slopes.
Common on many roofs the vent top spins on ball bearings.
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.