Does Your Attic Have Enough Ventilation? What Homeowners Should Know
When homeowners think about their attic, insulation is usually the first thing that comes to mind. But insulation isn't the only factor that affects how an attic performs.
Proper attic ventilation is also an important part of a healthy attic system.
A well-designed attic ventilation system helps manage heat and moisture and can work alongside insulation and air sealing to protect your home.
Why Does Attic Ventilation Matter?
Your attic is exposed to changing temperatures and moisture throughout the year.
During the summer, temperatures in an unventilated or poorly ventilated attic can become extremely high. During the winter, warm, moist air from the living space can make its way into the attic if there are air leaks.
Proper ventilation helps allow air to move through the attic and can help manage these conditions.
However, ventilation is only one part of the equation. It is important to address the entire attic assembly, including insulation and air sealing.
Common Types of Attic Ventilation
There are several ways an attic can be ventilated, depending on the design and construction of the home.
Common ventilation components include:
Soffit vents — located along the underside of the roof overhang and commonly used to provide intake ventilation.
Ridge vents — installed along the peak of the roof to allow warm air to exit.
Gable vents — located in the gable ends of the attic.
Roof vents — installed through the ro
