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.

Average attic temperature in winter.

What temperature should attic fan be set at. What should the attic temperature be relative to the outside and house temperatures assuming a new supposedly well insulated house. Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures. 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.

Most manufacturers and contractors recommend a temperature setting between 100 and 110 degrees fahrenheit. Summer attic air temperatures with reflective roof peak at or slightly above outdoor air ambient. Install electric ventilators and attic fans which remove hot air from an attic. Providing half air change per.

January 8 2010 5 15pm text size. Kingmurphy 04 32am 11 20 05. Hot summer weather poses the opposite problem for maintaining recommended attic temperatures. They have thermostats that turn the fan on at a recommended preset temperature of 100 110 degrees.

Of course some environments are much hotter than others so this will be the perfect time to measure out how warm your attic will get during the most heated of seasons. Alternatively install passive vents such as gable soffit and ridge vents which are openings in the roof that allow hot air to escape. When it comes to adjusting the thermostat of your attic s fan it s best to adjust it to approximately 90 to 95 degrees. Summer attic air temperatures with old terra cotta colored asphalt shingles peaked at 140 to 145 at 18 above the blown in fiberglass insulation layer at the attic floor.

Your attic temperature should be at or near the outside air temperature if it is well ventilated and does not leak warm air into the attic from below.