Roof Ventilation Intake Vents

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

Roof ventilation intake vents.

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. 6 75 square inches nfva per lineal foot perfect for use with our v 300 ridge vents. Vent area ranges from about 35 sq in. This occurs through the rising of warm air and the falling of cooler air.

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. Intake vents such as soffits are placed lower on the roof usually under the eaves. 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. Roof vents choose one of the following products to meet the recommended exhaust nfva of 528 square inches.

Provides continuous ridge venting continuous soffit venting and then close off those old gable end vents to force the intake air to come where you want it to flow. Properly ventilating your attic is one of the best ways to increase the longevity and performance of your roof. 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.

Of course there should be intake vents to ensure a balanced system. 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. Ventsure 4 foot strip heat moisture ridge vent 27 lineal feet required. 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.

Soffit vents are one of the most popular intake vent styles. The two roof ventilation options intake vents and exhaust vents should be placed to take advantage of the natural increased speed of air circulation. Key benefits low 1 profile allows it to blend in with the roof. Per vent does not provide uniform ventilation between all rafter bays.

The bottom line an unvented or poorly vented roof and attic area is a ticking time bomb of sorts. Per linear foot covered by cap shingles est. Figure 7 mechanical ventilation used with a hip roof. Optimum roof ventilation design.