Attic Humidity Control

Proper ventilation can help circulate the air reduce the heat build up in the attic and keep down humidity levels.

Attic humidity control. Proper insulation but poor ventilation will lead to high temperatures and thus high humidity. Attic temperature depends on the outside temperature and it also depends if your house is insulated. Attic venting fans attic fans serve a different function removing the hot and moist air from the attic and leaving the space below the attic floor alone. We mean that literally by the way.

During winter months humidity from this escaping air can condense on cold attic surfaces leading to mold. You can test the temperature level using a couple of thermometers. Size the next feature you have to consider is the dehumidifier size. Cold outdoor temperatures especially below freezing can wear on your furnace.

Continuous draining dehumidifiers come with limited water tanks based on their size. The difference in the two spaces is the dry bulb temperature. So the first step is to seal the air leaks. If the problem is the result of water or moisture penetrating the foundation or floor slab there are many remedial actions which may help.

These can include installation of seamless gutters and downspouts. 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. How to manage humidity in your spray foamed attic attics with spray foam insulation are so cool. The best solution for controlling moisture is at its source.

So they equalize pretty quickly. Ideal attic temperature and humidity settings cold outdoor temperatures affect attics. Quelch the heat wave. Exhaust fans from cooking surfaces or the bathroom that are vented into your attic only redistribute humidity within your home.

The federal housing administration has recommendations for the amount of ventilation you will need based on the size of your home. For an attic to be properly ventilated it must also have a balanced system of intake and exhaust vents. Ventilation is another key factor. All such fans should be vented to the outside with the system checked for leakage.

This is based on the. A moist attic means moist insulation and moist insulation is less effective. When you insulate the top of your attic with spray foam you re bringing your attic into your home s envelope. High humidity in an attic is usually caused by air leaks in the ceiling of the top floor of your house.

Since you are going to install in. If you raise the attic temperature the rh in both places would be the same. Air sealing an attic. Here is a link to an article that describes the work.