Attic Ventilation Summer

Roof and soffit vents reduce cooling costs in summer prevents ice dams in the winter extend the life of your shingles and prevent mildew and rot by reducing moisture buildup.

Attic ventilation summer.

In the winter warm moist air seeps into the attic from the living space below. This prevents hot air from seeping into your home and driving up the temperature in the living space which reduces the load on your air conditioner. In the summer good attic ventilation reduces heat buildup. Also moisture produced within the home may move into the attic if ceiling vapor barriers are not used.

Just like properly sizing your furnace and air conditioning unit you want precisely the right amount of attic ventilation for your home. Attic ventilation fans help cool air your attic by pushing out the stifling hot air from inside the attic and bringing in cool air from outside. Insufficient ventilation can lead to moisture problems during the winter and decreased energy efficiency during the summer but too much ventilation can be just as bad if not worse. During the summer excess heat that builds up in the attic during the day results in high energy costs for cooling.

And since hot air rises and is exactly what you want to vent out of your attic exhaust vents should always be installed at or near the top of the roof. The most common mistake homeowners make when installing insulation is to block the flow of air at the eaves. In the summer natural air flow in a well vented attic moves super heated air out of the attic protecting roof shingles and removing moisture. Ventilation of the home attic is important for two reasons.

Intake vents located at the lowest part of the roof under the eaves allow cool. The insulation will resist heat transfer into the house. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Good ventilation allows the heat and moisture to escape.

Effective attic ventilation systems reduce damaging heat and moisture in your attic promote energy efficiency by helping to reduce the load on your air conditioner in the summer and also reduce the risk of ice dam formation on your roof. By the diy experts of the family handyman magazine.