The a c usage goes down.
Attic need supplimental cooling fans.
I ve had better success with insulation between the rafters and the hot roof radiates more to the surroundings.
When combined however they form a perfect union.
With a hot attic the ceiling heats the building.
That said air resistance and interference such as vent grates reduces the area of true ventilation.
Attic fans and whole house fans together can help with home ventilation but they serve different purposes.
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.
A fan cools things.
Without this open space the fans will not move much air.
Alternatively install passive vents such as gable soffit and ridge vents which are openings in the roof that allow hot air to escape.
Whole house cooling using a whole house fan can substitute for an air conditioner most of the year in most climates.
The ventilation that controls moisture from condensation and regulates the temperature in your attic relies on air circulation.
In other words the entire vent opening doesn t count as vented space.
The attic cools and the attic fan goes off.
By installing ceiling fans or using floor fans you can help to better distribute the cold air that comes from your air conditioner.
In addition to whole house fans the ducts of your central heating and cooling system can be modified to provide whole house cooling.
Install electric ventilators and attic fans which remove hot air from an attic.
Whole house fans combined with ceiling fans and other circulating fans provide acceptable summer comfort for many families even in hot weather.
So it s natural to think of cooling the attic.
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.
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.
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.
Make sure that your attic is well insulated.
They have thermostats that turn the fan on at a recommended preset temperature of 100 110 degrees.
Additionally by aiding your central air conditioner fans lessen the workload of your hvac system thus reducing the helping to lengthen its lifespan.
