Attic Wall Ventilation

Use manufacured and ca approved vents see below to retrofit existing attic soffit basement foundation and gable vents where possible.

Attic wall ventilation. Help remove excess heat and moisture to protect your roof from premature deterioration. Calculate or enter the square footage of the attic or area to be vented. Effective attic ventilation systems reduce damaging heat and moisture in your attic promote energy efficiency by helping to reduce the load on your air conditioner in the summer and also reduce the risk of ice dam formation on your roof. A new roof is more than just shingles.

Common 1 4 screens are ineffective and should be replaced or retrofitted. Intake vents located at the lowest part of the roof under the eaves allow cool. Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator. That is openings doors windows and louvers to the outside should create a.

To lower attic temperatures and to remove excess moisture. The egv5 power gable mount vent can move air at a rate of up to 1450 cu. That said air resistance and interference such as vent grates reduces the area of true ventilation. In cold climates the primary purpose of attic or roof ventilation is to maintain a cold roof temperature to control ice dams created by melting snow and to vent moisture that moves from the conditioned space to the attic ventilation acts to bypass the vapour barrier created by most roof membranes.

See the benefits of attic ventilation. In other words the entire vent opening doesn t count as vented space. Attic ventilation serves two main functions. Most ventilation systems are strategically placed on unseen areas of a roof but gable vents offer an interesting accent to a home s exterior plus all the functional benefits of other exhaust openings.

Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Gable vents are installed on the exterior wall of an attic to create air circulation. If your attic is enclosed california s building code states it should have cross ventilation. They can quickly remove a larger volume of hot and or humid air from your attic compared to static ventilation which helps save money on your heating and cooling costs.

Ventilation and attic vents.