Moisture buildup in attics is a major concern in humid, subtropical climates such as that of Asheville. The moisture can cause extensive damage to the home and to items stored in the attic. It also promotes mold and mildew growth and lowers the energy efficiency of your home.

Moisture buildup is caused by the warm air and steam that rises up into the attic from the main living area of the home. Problems occur when that moisture rises and then has no way to escape from the attic. The first step in preventing this from occurring is to seal the attic. Any cracks or holes in your drywall and plaster on the ceiling should be patched. Cracks around light fixtures and other items attached or routed through the ceiling should be sealed.

In addition to sealing the attic, vents should be installed on the ridge of the roof to allow the hot moist air to escape, and soffit vents on the sides to allow moist, outside air to enter the attic. This system keeps the humidity level low so that moisture does not build up and condensate on windows, wood and insulation. It also keeps humidity at a level low enough to inhibit the growth of mold and mildew.

When installing a ventilation system, it’s important that the correct size and number of vents are installed. Incorrectly installed systems can lead to higher energy costs and other problems in your home.

For more information about how to prevent moisture buildup inside your home and to lessen the moisture migrating to your attic, contact the HVAC professionals at Smoky Mountain Heating & Air. We’re dedicated to serving the Asheville area.

Our goal is to help educate our customers in Asheville, North Carolina and surrounding areas about energy and home comfort issues (specific to HVAC systems).

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