Attic Fan Humidity Control

The normal indoor humidity range in winter should be 15.

Attic fan humidity control.

During the winter months the recommended relative humidity inside a house is anywhere between 30 50 percent. The humidity in the basement measured 40 the first floor was 45 50 but the attic was 62. At higher levels relative humidity condensation can even occur inside of the house on windows cold walls or ceiling surfaces. A couple different fan styles can be used to help control the temperature of an attic space.

However you should also try to find out the root cause of the humidity. Humidity settings are another issue that can make or break the performance of your heating and cooling systems and your attic ventilation. Regardless of the type of fan you choose make sure to run it on a fairly consistent basis. High humidity in an attic is usually caused by air leaks in the ceiling of the top floor of your house.

During winter months humidity from this escaping air can condense on cold attic surfaces leading to mold. Below are some of the most common causes of high humidity in an attic. If the attic has blown in cellulose check to see if there is a vapor barrier and confirm the cellulose. Their functions differ somewhat.

You need to make sure there is adequate ventilation in your attic to allow warm moist air to escape. So the first step is to seal the air leaks. If your attic is particularly large you may want to use more than one electric fan. Here is a link to an article that describes the work.

Adjustable thermostat and humidistat control has 10 amps 120 volts ac. The moisture was rising with the warm air of the home as it escaped past the insulation and it was trapped in the attic because there was no roof ventilation. Ac infinity airlift t10 shutter exhaust fan 10 inch with temperature humidity controller wall mount ventilation and cooling for sheds attics workshops 4 6 out of 5 stars 125 129 00 129. If you have too high humidity in your attic a dehumidifier is certainly a good idea.

It removes excess heat from an attic in summer and humidity in winter and allows equalization of inside and outside attic temperatures dual humidity control. Thermostat setting adjusts from 60 120 degrees f normal settings are 85 110 degrees f.