With outside temperatures ranging between 5 f and 95 f attic temperatures range between 48 f and 92 f.
Attic humidistat setting winter.
In summer the thermostat operates the fan when the attic temperature reaches a preset level usually 90 to 95 degrees f.
Advani hopes to finish the attic and install a minisplit although he s not sure that will lower the humidity.
When it comes to humidity you would be best to have the levels below 50 to avoid mold growth and structural rot.
Winter air is by nature not humid so the problem must be condensation related.
June 27 2019 by zamira leave a comment.
However it should also depend on the season the temperature outdoors as well as indoors.
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Most attic fans operate with a thermostat that automatically turns the fan on and off based on a temperature the homeowner sets.
Controlling the humiditylevels of your attic is also important as it can easily make or break the performance of your hvac systems.
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The results are that the attic temperature is close to the outside temperature but the relative humidity is significantly higher in the attic than either the indoor or outdoor readings.
Only about 10 of the hip roof is shaded so it gets plenty of direct sunlight.
Proper humidistat setting attic fan.
Normally the humidistat setting should range between 15 to 50 percent.
Most manufacturers and contractors recommend a temperature setting between 100 and 110 degrees fahrenheit.
If the outdoor temperature is near 10 f set the humidistat to 20 percent.
Set the humidistat knob on the humidifier to the following winter settings as recommended by the ask the builder website.
Eliminating mold and mildew on the roof structure is the ultimate goal.
Hot summer weather poses the opposite problem for maintaining recommended attic temperatures.
Ideal attic temperature and humidity settings cold outdoor temperatures affect attics.
If the temperature is near 0 f set the humidistat to 25 percent.
Cold outdoor temperatures especially below freezing can wear on your furnace.
In winter the humidistat operates the attic fan when the relative humidity exceeds a preset level usually 40 to 50.
