Is It Normal For An Attic Temperature

An unventilated attic can reach 150 degrees in the heat of summer 50 degrees higher than it should be.

Is it normal for an attic temperature.

Most attic fans operate with a thermostat that automatically turns the fan on and off based on a temperature the homeowner sets. And it can cause your air conditioner to work harder than it needs to and send your energy bills soaring with the temperature. An overheated attic can bake asphalt shingles on the roof and cause them to deteriorate. These images came from a presentation danny parker gave pdf on fsec s cool roof research the third graph shows attic temperatures from the middle of the attic for several different types of roofing as well as a sealed attic.

In an ideal world the attic temperature would be the same as the outside temperature. When it comes to adjusting the thermostat of your attic s fan it s best to adjust it to approximately 90 to 95 degrees. The white roof lowered the attic temperature by about 20 f. Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures.

In reality however variables get in the way. If your attic soars above 100 degrees and reaches the 150 mark its time to consult. A check the temperature an hour before sunrise.