Intake Vents For Attics

In vent is ideal for roofers and remodelers who need to add attic roof intake ventilation to balance their ridge vents but can t access the soffits or overhangs.

Intake vents for attics.

As a result the intake vents on the leeward side of the house will work with the exhaust vents to release air. Of course there should be intake vents to ensure a balanced system. Attic length x attic width 150 total vent space or net free area nfa. Soffit vents run the full length of a soffit the material underneath your eaves or are placed between the joists.

In vent attic roof vent is an on the rooftop intake ventilation product that lets fresh air in when traditional soffit vents are out. In this post we cover the intake ventilation. The shutter will open when the electric gable vent is operating. 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.

However if the attic has more exhaust than intake it potentially can cause the extra exhaust to pull its missing intake from itself if it s a ridge vent or from another nearby exhaust vent from one wind turbine to another or one roof louver to another which means possible weather ingestion. Figure 7 mechanical ventilation used with a hip roof. These are the most common intake vents. The ideal amount of attic ventilation is one square foot of vent space for every 150 square feet of attic area.

This value is split evenly between intake and exhaust ventilation. Ridge vents and gable vents serve dual purposes and operate as both intake and exahust vents. So how much intake ventilation do i need. Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic.

Power gable vent shutter is automatic 20 in. Power gable vent shutter is designed to be used with master flow egv pg series electric gable fans. 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. Constructed of white aluminum that can be painted.

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. 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.