Attic Need Supplimental Cooling Fans

In other words the entire vent opening doesn t count as vented space.

Attic need supplimental cooling fans.

Whole house cooling using a whole house fan can substitute for an air conditioner most of the year in most climates. Whole house fans combined with ceiling fans and other circulating fans provide acceptable summer comfort for many families even in hot weather. Attic fans and whole house fans together can help with home ventilation but they serve different purposes. In a properly designed passive system air enters through the soffit.

Attic ventilation fans help cool air your attic by pushing out the stifling hot air from inside the attic and bringing in cool air from outside. Generally speaking you need a ratio of 1 300 where for every 300 square feet of ceiling space you need 1 square foot of attic ventilation. That said air resistance and interference such as vent grates reduces the area of true ventilation. The a c usage goes down.

So it s natural to think of cooling the attic. Make sure that your attic is well insulated. With a hot attic the ceiling heats the building. Additionally by aiding your central air conditioner fans lessen the workload of your hvac system thus reducing the helping to lengthen its lifespan.

Without this open space the fans will not move much air. The attic cools and the attic fan goes off. In addition to whole house fans the ducts of your central heating and cooling system can be modified to provide whole house cooling. Ventilation fans ventilation fans or powered attic ventilators are designed to cool the attic pushing out the hot attic air and rushing in a flow of cool outside air.

I ve had better success with insulation between the rafters and the hot roof radiates more to the surroundings. The ventilation that controls moisture from condensation and regulates the temperature in your attic relies on air circulation. Install electric ventilators and attic fans which remove hot air from an attic. They have thermostats that turn the fan on at a recommended preset temperature of 100 110 degrees.

A fan cools things. Alternatively install passive vents such as gable soffit and ridge vents which are openings in the roof that allow hot air to escape. A whole house fan can be run from early evening to early morning effectively cooling the structure of your home using the cool free outside air. Whole house fans need windows and doors open and attic fans need lots of soffit vents to suck cooler outdoor air up into the hot attic.