Attic Fans Impact

We think of ceiling fans in terms of evaporative cooling of the skin.

Attic fans impact. This type of system blows hot air out of the attic but it can have a negative effect. Fans can cause increased loss of conditioned air. It can affect your whole house. A whole house fan is usually installed on the attic floor near the center of your house.

As it turns out because the insulation slows heat from moving down into the living space homes with well insulated attics don t see a significant reduction in their cooling load when they add attic ventilation fans. Most fans cannot keep up. Depending on the type of insulation material you re using on your attic floor mold spores could potentially destroy your valuable insulation and create a health risk. However a ceiling fan in a room with attic exposure also acts to disrupt the air film reducing it s r value which brings ceiling temperature closer to room ambient.

The fans cool the attic equalizing the temperature between the attic and outside of the home. Cooler outdoor air enters through open windows lowering the indoor temperature. Solar star ventilation fans safeguard your attic from winter damage by. Avoiding leaks and structural decay from ice damming.

Using a thermal switch the fan will turn off when it gets cold and turn itself back on when the temperature gets hot in your attic. But the hot air that tends to get trapped in your attic doesn t just impact that space. You must have a tight seal between your living space and your attic to get an energy efficiency boost. Equalizing attic and exterior temperatures.

Mitigating weakened internal structures caused by mold and fungus growth. Add the thermal switch temperature controlled attic fans. During the day any cooler air brought in by the fan will be heated up immediately by the surrounding structure. In the late evening or early morning the fan is turned on to exhaust hot air from the house.

Even though an attic exhaust fan can incrementally lower the temperature of a very hot attic using a fan does not stop the source radiant heat. The thermal switch activates when temperatures reach approximately 85 f 29 c and deactivates when temperatures drop below 65 f 18 c. Maximize motor performance by adding temperature controlled thermal switch to any attic fan model. Eliminating damage to insulation and framing materials produced by moisture.

If the home is not properly insulated a ventilator fan can actually draw cool air out of the home resulting in an increased cooling load. There is one major caveat to the effectiveness of an attic fan. As such investing in an attic fan could make your entire home more.