Average Attic Temperature In Winter

If your attic soars above 100 degrees and reaches the 150 mark its time to consult.

Average attic temperature in winter. Now if the ridge vent is only partial or if the attic air temperature is excessive 20 degrees higher than the outside air fans may prove beneficial pick the right fan. Warner is right that the attic should be close to the outside temp. Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures. Most manufacturers and contractors recommend a temperature setting between 100 and 110 degrees fahrenheit.

Alternatively install passive vents such as gable soffit and ridge vents which are openings in the roof that allow hot air to escape. Most attic fans operate with a thermostat that automatically turns the fan on and off based on a temperature the homeowner sets. January 8 2010 5 15pm text size. What should the attic temperature be relative to the outside and house temperatures assuming a new supposedly well insulated house.

Attic temperature depends on the amount of solar radiation construction details and the rate of ventilation. They have thermostats that turn the fan on at a recommended preset temperature of 100 110 degrees. A good sign is when you open your attic in the winter and you don t see any frost on the nails poking through. Calculations indicate that on a july day in texas a ventilation rate of one air change per minute for a typical attic using 95 degree f air will lower the peak attic temperature to about 101 degrees f.

The white roof lowered the attic temperature by about 20 f. Temperatures of 150 5 f 66 3 c 160 5 f 71 3 c 170 5 f 76 3 c and 180 5 f 82 3 c for up to 36 13 5 and 2 h respectively over the course of an average year. 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. Your insulating and heating cooling the house not the attic.

Install electric ventilators and attic fans which remove hot air from an attic.