Roof Ventilation Intake Vents

The two roof ventilation options intake vents and exhaust vents should be placed to take advantage of the natural increased speed of air circulation.

Roof ventilation intake vents.

Conventional rigid aluminum ridge vent typical 20 sq in. When installed as part of a properly balanced when installed as part of a properly balanced attic ventilation system gaf cobra exhaust vent is a shingle over exhaust vent installed at the roof ridge that helps exhaust excess heat and moisture from your attic. 6 75 square inches nfva per lineal foot perfect for use with our v 300 ridge vents. They are easy to install under the roof s overhang which is known as the soffit are generally hidden from sight and provide excellent protection from weather outdoor debris and pests while still allowing air to flow into the attic.

Vent area ranges from about 35 sq in. One method is to use a powered attic vent with a humidistat thermostat located close to the ridge or top of the roof. As part of a ventsure balanced air ventilation system of intake and exhaust the ventsure inflow vent helps reduce heat and moisture buildup that can lead to ice damming and roof deterioration. Roof vents choose one of the following products to meet the recommended exhaust nfva of 528 square inches.

And in many of these cases the hip roof forms a large volumetric attic space to ventilate. Ventsure 4 foot strip heat moisture ridge vent 27 lineal feet required. Per linear foot covered by cap shingles est. Regardless of the exact vent styles your contractor recommends a roof ventilation system that does its job must include intake vents and exhaust vents.

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 such as soffits are placed lower on the roof usually under the eaves. Key benefits low 1 profile allows it to blend in with the roof. It comes on an easy to install flexible mesh roll and is hand nailable with no complicated fitting wrapping nail gun adapters connectors or end plugs needed.

Properly ventilating your attic is one of the best ways to increase the longevity and performance of your roof. Otherwise the exiting air at the ridge will usually pull its makeup air from the closer gable end vents and not from the soffit or eaves vents. This occurs through the rising of warm air and the falling of cooler air. Roof louvers or spot vents typical 50 sq in.

Optimum roof ventilation design. Figure 7 mechanical ventilation used with a hip roof. Per vent does not provide uniform ventilation between all rafter bays. Soffit vents are one of the most popular intake vent styles.