Homeowners seldom understand the importance of attic ventilation. Attic ventilation has to do with that metal contraption on your roof and those vents underneath the soffits on the eaves. Perhaps you've never really been sure how attic ventilation works or why you should care. First, attic ventilation has a a big effect on your utility bill. Second, it can also help prevent roof damage. Let's have a look at how this happens.
Why You Need Attic Ventilation
It may not make much sense at first glance, but air should flow freely through your attic to let out excess heat. This heat builds up in summer as warm air rises to the ceiling and migrates into the attic while you're cooling your home. By allowing fresh air to flow through the intake vents located at the lowest level of the eaves, it pushes warm air up through the exhaust vents at the peak of the roof.
Removing warm air in the winter is also helpful in preventing ice dams. These form on the edge of the roof when the warm air in the attic melts snow and ice on the roof during the daytime and the moisture freezes overnight along the edge. Ice dams can damage the roof over time.
Exhaust Vents
Exhaust vents are usually one of two kinds: ridge vents, which are elongated and run the length of the ridge at the peak of the roof, or static vents, which stand up from the roof line and have covers to keep out precipitation. Turbine vents are a type of static vent that operates as wind blows on an enclosed fan. A light breeze rotates the blades, which sucks out heat from the attic.
Powered exhaust vents, as opposed to the passive vents described above, also boost attic ventilation. These electric- or solar-powered fans turn on when the attic temperature reaches a certain level, and they run until the temperature drops. These effectively pull out heat, but they may also pull out air conditioning through cracks.
To learn more about attic ventilation, contact Air Assurance, serving the Broken Arrow area.