Exhaust Fans and Attic Insulation

Spray Foam Insulation Phoenix attic fan can prevent moisture-related problems such as mold and ice dams from developing on your roof. In addition, the fan can help keep your house cool by circulating air-conditioned indoor air throughout the home. However, an attic fan is not a complete solution to cooling problems and should only be installed in houses with sufficient attic insulation and properly-installed ventilation.

In poorly-insulated homes with blocked soffit vents at the attic eaves, an attic fan essentially pulls conditioned air from living spaces up into the attic and out of the attic through the gable or ridge vents. This forces your air conditioner to work harder to maintain a comfortable temperature and drives up energy bills.

Exhaust Fans and Attic Insulation: Do They Work Together or Against Each Other?

An effective attic ventilation system combines radiant barrier, soffit and gable vents with proper attic insulation. A radiant barrier stops the sun’s heat from warming up the attic ceiling to start with, reducing the load on your air conditioner. Gable and soffit vents allow the cooled air to escape the attic without causing a draft by pushing the hot attic air through the ceiling. Proper attic insulation reduces the amount of conditioned air that gets sucked into the attic from living spaces and helps maintain an even temperature between the first floor and upstairs.

Venting bathroom fans with insulated ducts and a damper-equipped roof cap helps prevent condensation buildup in the ducts and maintains the efficiency of your attic insulation. Moisture-free ducts also limit mold growth and other problems that damage walls, floors, and fixtures, and contribute to a healthier, safer home.

“Spray Foam Insulation Phoenix
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“Phoenix, AZ 85015
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(602)825-3298