Add ventilation for improved circulation.
How to get heat from attic diy.
How many vents do you need.
In of vent opening per 150 sq.
They have thermostats that turn the fan on at a recommended preset temperature of 100 110 degrees.
When reroofing use white or pale gray shingles instead of dark ones.
Also make sure your attic is ventilated.
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.
Alternatively install passive vents such as gable soffit and ridge vents which are openings in the roof that allow hot air to escape.
Then aim for about 1 sq.
On a warm day attics can get dangerously hot.
Best way to cool an attic.
Heat also makes shingles easy to damage.
A cool day is best.
A 30 x 40 ft.
First determine your attic area by multiplying the length by the width.
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.
All of the other tips listed below are good for cooling down an attic so that the rest of your house doesn t.
Gable vents around 25 each plus 75 per vent for labor can lower attic temperatures about 10 degrees.
Seal cracks and gaps.
Attic for example has an area of 1 200 sq.
A ridge and soffit ventilation system an extra 200 during reroofing will reduce attic temperature to around 100 degrees.