Reduce Moisture In Attic

By adding moisture to the lower floor you increase the partial pressure of the water vapor which pushes it to areas of lower vapor pressure like the attic.

Reduce moisture in attic.

So they equalize pretty quickly. So the first step is to seal the air leaks. Sealing these can greatly reduce the moisture drivers. If you raise the attic temperature the rh in both places would be the same.

Regularly airing out your attic is a very simple and effective way to prevent the formation of attic moisture. You want to use a ridge vent that goes down the peak of the roof. Right now we just have eave vents and gable vents. High humidity in an attic is usually caused by air leaks in the ceiling of the top floor of your house.

Proper ventilation can help circulate the air reduce the heat build up in the attic and keep down humidity levels. Proper precaution in an uninsulated attic such as the department of energy s recommended r30 to r49 insulation for warm climates r30 to r60 for moderate climates and r49 to r60 for cold climates. These conditions prevent warm damp air from migrating to the attic in the first place. This can reduce moisture as well as the temperature in the attic which can make it far more difficult for mold and mildew to gain a foothold in the space.

Once a week open your attic door and leave it open for several hours. Simply by sealing the various possible paths of air leakage already discussed infiltration will be reduced therefore restricting the movement of air and eliminating the stack effect. Open windows and use ceiling fans to keep the air circulating in your home and avoid stuffiness. Here is a link to an article that describes the work.

The difference in the two spaces is the dry bulb temperature. During winter months humidity from this escaping air can condense on cold attic surfaces leading to mold. The federal housing administration has recommendations for the amount of ventilation you will need based on the size of your home. Limit warm air reaching the attic one of the best things you can do to limit attic humidity is to keep the rest of your home cool and dry.

Well you ve got to manage your moisture as you re well aware and the best way to do that in an attic is with a combination of roof vents. If you live in a warmer climate you may want to air out your attic twice a week. Ventilating this space can also reduce heat that radiates up through the roof and down into the living areas of the home. Air sealing an attic.

Do you have a ridge vent right now. After moisture penetration is controlled as best as possible the next approach to reducing attic moisture is by controlling air infiltration.