Humidity settings are another issue that can make or break the performance of your heating and cooling systems and your attic ventilation.
Humidifier in attic.
If you ve got a sealed combustion furnace or your open combustion furnace lives in your attic or crawl space the non conditioned part of your home and you still have really dry air in spite of air sealing your home it s possible that the super hot heat from your furnace just isn t holding enough humidity and you re not making up for it with activities like cooking showering and so on.
Air leaks in the lower part of the house in the basement for example allow outside air with low humidity to get into the house.
This can result in mold rust and deterioration of wood and structural fasteners.
If your ceiling has inadequate insulation the warm moist air from your living space rises into your attic.
The water in the air condenses on the underside of the roof as the warm air collides with the cool outside air and the moisture cannot escape.
Auto restart mode because no one really goes to the attic frequently you need a dehumidifier that can power off by itself according to the number of hours you wanted.
Advani is adding moisture to the air with a humidifier and that hot air rises finding ways of getting into the attic sullivan says.
If the outdoor air is cold the air in the attic is cooled and can cause condensation against the cold outer roof.
Install a dehumidifier in your attic.
As the moisture migrates upwards to the colder attic areas during the winter months the relative humidity is increased to the point that condensation can occur on cold surfaces.
After from sealing things up and fixing your pressure balance this is usually the best solution to high humidity in a spray foamed attic.
You can use a hygrometer to test humidity levels or if you notice mold on material in the attic this is a good sign that humidity levels are too high.
A dehumidifier can remove it.
Still got high humidity.
To wrap it up if you have problems with high humidity in your attic purchasing a dehumidifier is a good idea but you should also try to figure out the root cause of the problem.
The normal indoor humidity range in winter should be 15.
Ventilating an attic too much can also cause problems.
Humidistat humidity control find a dehumidifier that has a humidistat or humidity control set to give you a real time reading of the current attic atmosphere.
Or when the temperature of the outer roof falls for example after a warm day the cooling and the increased relative humidity can lead to condensation on the inside of the roof.
The installer of our system recommended the humidifier and it has worked.