In our central California climate, an attic fan is equally important in summer and winter — but for different reasons. In summer, heat accumulation in a poorly ventilated attic can send temperatures up to 150 degrees. All that heat baking the wooden structure of the attic and sub-roof can be damaging. Even worse, it migrates down into living spaces and makes your A/C work harder, raising utility costs. During winter, humid air infiltrating from rooms below condenses in the cold attic. This saturates attic insulation, destroying its heat-resistant properties. The wet environment also promotes mold and warps wooden structural components.
Donald P. Dick Air Conditioning Blog: Posts Tagged ‘attic fans’
Attic Fans — A Breath Of Fresh Air Does Wonders
Thursday, October 25th, 2012Don’t Ignore Mold In The Attic, Address It With Proper Ventilation
Thursday, May 3rd, 2012
It’s easy to ignore mold when it’s growing where you can’t see it. Mold in the attic may not seem like a big deal, but mold growth results from excessive moisture in the attic, which also can be highly damaging to structural elements and fixtures. Water intrusion may lead to rotted wood, bubbled paint on the home’s exterior, warped shingles, and ruined insulation in addition to mold growth. The best way to prevent these issues is to seal leaks in the attic while improving attic ventilation.