Intake Vents For Attics

One method is to use a powered attic vent with a humidistat thermostat located close to the ridge or top of the roof.

Intake vents for attics. Help protect your roof system from premature deterioration by installing a properly balanced attic ventilation system consisting of cobra exhaust vent at the ridge and adequate intake ventilation at or near the soffit areas of your roof. Power gable vent shutter is automatic 20 in. Soffit vents run the full length of a soffit the material underneath your eaves or are placed between the joists. Hot air exhaust vents located at the peak of the roof allow hot air to escape.

In vent attic roof vent is an on the rooftop intake ventilation product that lets fresh air in when traditional soffit vents are out. The shutter will open when the electric gable vent is operating. Ridge vents and gable vents serve dual purposes and operate as both intake and exahust vents. Of course there should be intake vents to ensure a balanced system.

Proper attic ventilation consists of a balance between air intake at your eaves soffits or fascias and air exhaust at or near your roof ridge. Attic length x attic width 150 total vent space or net free area nfa. As a result the intake vents on the leeward side of the house will work with the exhaust vents to release air. Power gable vent shutter is designed to be used with master flow egv pg series electric gable fans.

In this post we cover the intake ventilation. The ideal amount of attic ventilation is one square foot of vent space for every 150 square feet of attic area. Constructed of white aluminum that can be painted. As a result the intake vents on the leeward side of the house will work with the exhaust vents to release air.

Federal housing authority recommends a minimum of at least 1 square foot of attic ventilation evenly split between intake and exhaust for every 300 square feet of attic floor space. These are the most common intake vents. However if the attic has more exhaust than intake it is potentially problematic because the exhaust vents could become intake to compensate for the lack of balanced intake. So how much intake ventilation do i need.

This value is split evenly between intake and exhaust ventilation. Figure 7 mechanical ventilation used with a hip roof.