If you want the heat out of your attic a reflective roof or radiant barrier are better ways to get there.
Remove heat from attic.
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Fortunately there are a number of steps you can take to reduce attic heat and lower your power bills at the same time.
The air you lose from the attic is then drawn into your home from the outside which will cause your cooling bill to go up.
Many homeowners falsely assume that since their attics are extremely hot in the summer the best way to reduce their cooling load is to get the heat out of the attic.
If your attic has less than r 22 insulation 7 inches of fiberglass or rock wool or 6 inches of cellulose you should add more.
While it does help to reduce the heat in your attic putting these fans in your attic costs more because of the loss of conditioned air.
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Your attic can get as hot as 150 degrees in the summer.
Ridge vents are a small opening in the ridge of the roof and a soffit vent is a small vent installed under the roof.
Ventilating your attic greatly reduces the amount of accumulated heat which eventually works its way into the main part of your house.
Install electric ventilators and attic fans which remove hot air from an attic.
Seal spaces around plumbing recessed lights and vents.
When running they pull heat and moisture from inside of the house and force it into the attic space.
Alternatively install passive vents such as gable soffit and ridge vents which are openings in the roof that allow hot air to escape.
Keep that super heated air from seeping into your living space.
They have thermostats that turn the fan on at a recommended preset temperature of 100 110 degrees.
The issue with a whole house fan is that the hot air needs somewhere to go.
Passive attic vents are the vents installed in attic during the construction to let moisture escape from an attic in the event moisture gets into the attic.
The temperature in your attic can reach 150 degrees on a hot summer day a situation that if left unchecked can drive up cooling costs by as much as 40 percent.
But by adding powered attic fans you will draw more air into the attic.
Ridge and soffit vents are also helpful for venting hot air and keeping an attic cool but you ll need a little extra help as this method alone probably won t remove enough heat to keep the space comfortable enough to live in.
4 ways to reduce attic heat in your home.