Reduce Moisture In Attic

The federal housing administration has recommendations for the amount of ventilation you will need based on the size of your home.

Reduce moisture in attic. 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. Do you have a ridge vent right now. You want to use a ridge vent that goes down the peak of the roof. Here is a link to an article that describes the work.

Regularly airing out your attic is a very simple and effective way to prevent the formation of attic moisture. These conditions prevent warm damp air from migrating to the attic in the first place. 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. 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.

If your attic features a window open it as well. The difference in the two spaces is the dry bulb temperature. After moisture penetration is controlled as best as possible the next approach to reducing attic moisture is by controlling air infiltration. So the first step is to seal the air leaks.

Proper ventilation can help circulate the air reduce the heat build up in the attic and keep down humidity levels. Ventilating this space can also reduce heat that radiates up through the roof and down into the living areas of the home. 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. Right now we just have eave vents and gable vents.

Air sealing an attic. So they equalize pretty quickly. 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. Once a week open your attic door and leave it open for several hours.

If you live in a warmer climate you may want to air out your attic twice a week. Check seals sweeps weather stripping around doors and windows make an assessment if the equipment may be significantly oversized. Sealing these can greatly reduce the moisture drivers. Open windows and use ceiling fans to keep the air circulating in your home and avoid stuffiness.

If you raise the attic temperature the rh in both places would be the same. High humidity in an attic is usually caused by air leaks in the ceiling of the top floor of your house.