Below are some of the most common causes of high humidity in an attic.
Attic fan humidity control.
So the first step is to seal the air leaks.
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.
Types of attic fans.
Air sealing an attic.
During the winter months the recommended relative humidity inside a house is anywhere between 30 50 percent.
If the attic has blown in cellulose check to see if there is a vapor barrier and confirm the cellulose.
If your attic is particularly large you may want to use more than one electric fan.
Regardless of the type of fan you choose make sure to run it on a fairly consistent basis.
The normal indoor humidity range in winter should be 15.
Thermostat setting adjusts from 60 120 degrees f normal settings are 85 110 degrees f.
Their functions differ somewhat.
A couple different fan styles can be used to help control the temperature of an attic space.
Here is a link to an article that describes the work.
If you re looking to de moisturize your attic on a budget a standard electric fan should adequately control the humidity of all but the most humid attics.
High humidity in an attic is usually caused by air leaks in the ceiling of the top floor of your house.
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.
During winter months humidity from this escaping air can condense on cold attic surfaces leading to mold.
However you should also try to find out the root cause of the humidity.
Adjustable thermostat and humidistat control has 10 amps 120 volts ac.
Humidity settings are another issue that can make or break the performance of your heating and cooling systems and your attic ventilation.
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At higher levels relative humidity condensation can even occur inside of the house on windows cold walls or ceiling surfaces.