Attic Ventilation System

Just like properly sizing your furnace and air conditioning unit you want precisely the right amount of attic ventilation for your home.

Attic ventilation system.

In summer and warmer months outside temperatures intensify the effects of this heated air. Proper insulation and air sealing also keeps attics cold in winter by blocking the entry of heat and moist air from below. Cobra exhaust vent 10 5 in. This means an equal amount of intake net free area through vents positioned in the soffit overhang or near the roof s lowest edge and exhaust net free area through vents installed at or near the peak of the roof.

Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca. Insufficient ventilation can lead to moisture problems during the winter and decreased energy efficiency during the summer but too much ventilation can be just as bad if not worse. In the summer natural air flow in a well vented attic moves super heated air out of the attic protecting roof shingles and removing moisture. Most building codes require a ratio of 1 150 ventilation space to attic floor space.

You can also contact your local municipality to check on building code in your area. Intake vents located at the lowest part of the roof under the eaves allow cool. Lowering the temperature in the attic can help reduce air conditioning energy costs and roof deck temperature optimize the service life of a roof covering and minimize ice damming. It comes on an easy to install flexible mesh roll and is hand nailable with no complicated fitting wrapping nail gun adapters.

See the benefits of attic ventilation get automatic lifetime protection on your entire gaf roofing system when you install any gaf lifetime shingle and at least 3 qualifying gaf accessories you ll automatically get a lifetime limited warranty on your shingles and all qualifying gaf accessories. Mesh roll ridge vent in black nail gun version 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. It is the recommendation of the ravc that the attic ventilation system always is balanced. It comes on an easy to install flexible mesh.

Roofing and attic ventilation systems are designed to work year round to balance the intake of cool air and the outflow of warm air in the home. Attic ventilation serves two main functions. No matter what month it is hot air will accumulate in the attic at the peak of the roof. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.