Unsafe Attic Temperatures

They have thermostats that turn the fan.

Unsafe attic temperatures.

If this isn t bad enough add to it the fact that an attic can reach temperatures of 120 degrees on a hot summer day. If your attic soars above 100 degrees and reaches the 150 mark its time to consult professionals. To head off these problems consider these options for bringing your attic s temperature down. Alternatively install passive vents such as gable soffit and ridge vents which.

Excessive heat deteriorates items you store in the attic and can cause moisture problems in your house. What should the attic temperature be relative to the outside and house temperatures assuming a new supposedly well insulated house. If your attic is not properly ventilated your cooling costs will not be as low as they should be because your system is constantly running to compensate for the excess heat. In some cases attic temperatures can reach above the 150 degree mark.

January 8 2010 5 15pm text size. The white roof lowered the attic temperature by about 20 f. Install electric ventilators and attic fans which remove hot air from an attic. I have to go into attics all the time and believe me i don t look forward to it.

They have done much of their testing in las vegas and phoenix where conditions are the worst and 150 degree attic temperatures are common. It s also been found that roofing design and materials have more effect on attic temperature than ventilation. 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. Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures.

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