There are many types of attic ventilation fixtures, from windows to vents. How the attic is designed and used will in part determine what type of ventilation is necessary. For example, an attic that is suitable for living may include windows or skylights, whereas an attic that is little more than a crawlspace may just have vents. The following are 6 common types of attic ventilation.
Windows provide ventilation as well as a view. Most likely, attics that are large enough to walk upright in comfortably will have windows to help keep the room ventilated.
Skylights will only work for ventilation if they are able to open. Like other windows, they no only let light into an attic, they also let in air.
This type of attic vent runs along the length of the ridge of the roof. It is one long and narrow vent.
Box or Dome Vents
These types of vents are fixed to the roof itself and derive their names from their shapes.
Not surprisingly, gable vents are found in homes with gable roofs. Gables are the flat walls of the attic at right angles to the sloping ceiling/walls. The vents are installed directly in the siding near the roof.
Vents found on the soffit or the underside of the overhang of the roof are known as soffit vents. Soffit vents provide intake, while ridge vents or box vents higher up provide exhaust.
As you can see, different types of attic ventilation fixtures exist for the several areas of the roof and attic where ventilation is necessary.