Attic Humidity Control

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.

Attic humidity control. Air sealing an attic. This is based on the. How to manage humidity in your spray foamed attic attics with spray foam insulation are so cool. Here s a quick rundown of the top attic dehumidifier features you should consider.

The federal housing administration has recommendations for the amount of ventilation you will need based on the size of your home. These can include installation of seamless gutters and downspouts. If the problem is the result of water or moisture penetrating the foundation or floor slab there are many remedial actions which may help. If you raise the attic temperature the rh in both places would be the same.

Continuous draining dehumidifiers come with limited water tanks based on their size. These fans circulate the air within the. When you insulate the top of your attic with spray foam you re bringing your attic into your home s envelope. Ventilation is another key factor.

Cold outdoor temperatures especially below freezing can wear on your furnace. Here is a link to an article that describes the work. Attic temperature depends on the outside temperature and it also depends if your house is insulated. Hot summer weather poses the opposite problem for maintaining recommended attic temperatures.

A moist attic means moist insulation and moist insulation is less effective. For an attic to be properly ventilated it must also have a balanced system of intake and exhaust vents. During winter months humidity from this escaping air can condense on cold attic surfaces leading to mold. Ideal attic temperature and humidity settings cold outdoor temperatures affect attics.

Quelch the heat wave. 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. The difference in the two spaces is the dry bulb temperature. So they equalize pretty quickly.

The best solution for controlling moisture is at its source. We mean that literally by the way. All such fans should be vented to the outside with the system checked for leakage. Proper insulation but poor ventilation will lead to high temperatures and thus high humidity.

Proper ventilation can help circulate the air reduce the heat build up in the attic and keep down humidity levels. Size the next feature you have to consider is the dehumidifier size. You can test the temperature level using a couple of thermometers. Exhaust fans from cooking surfaces or the bathroom that are vented into your attic only redistribute humidity within your home.