Reducing Moisture In Attic
In the event of the attic not being properly ventilated this would condense on the underside of the roof.
Reducing moisture in attic. 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. To prevent moisture from building up in your attic you need to make sure your attic has enough ventilation and won t get too hot. The federal housing administration has recommendations for the amount of ventilation you will need based on the size of your home. When the cool air from your living space rises due to humidity in your home often from cooking bathing or drying clothes it comes in contact with the warm surface of the ceiling and.
So you suspect some moisture in the attic. Well you came to the right place. Attic moisture can cause mold and mildew as well as ice dams in the winter. 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.
That s a very effective way to go. In addition to reducing moisture adding these improvements will make your home more energy efficient year round. If you raise the attic temperature the rh in both places would be the same. After moisture penetration is controlled as best as possible the next approach to reducing attic moisture is by controlling air infiltration.
Condensation on your ceiling occurs when the attic space above is poorly ventilated and insulated. This traps heat in the attic which then warms the ceilings. The difference in the two spaces is the dry bulb temperature. Here are some diy solutions to this problem.
And that s a cycle that runs 24 7 365 so you re always sort of washing drier ambient air through that attic and pulling moisture out at the same time. May 13 2020 blog. Opening drapes and blinds in the winter allows warmth to reach the interior glass. Condensation will arise as a result of warm moist air penetrating up through the ceiling.
So they equalize pretty quickly. Pay attention to window treatments as well. Some condensation may occur but the improved circulation makes it less likely to accumulate. For an attic to be properly ventilated it must also have a balanced system of intake and exhaust.
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. It can be tricky for a lot of homeowners to properly identify the presence of moisture in the attic the issues it causes and how to deal with them.