Reduce Your Electricity Bill - Attic temperatures can exceed 160F during hot summer days. Using appropriate attic ventilation can reduce those temperatures by up to 50F. Regardless of how much insulation is in the attic, heat can still transfer into local living spaces. As solar attic fans expel heat, the work load of the air conditioning system is reduced, which conserves energy and increases your air conditioner's life span.
Prevent Moisture Build Up - Unwanted moisture can seep into the attic through ceiling light fixtures, bathroom exhaust fans, and other possible leaks and cracks in the ceiling. Moisture condensing on the framing members and the inside of the roof deck can cause mold, mildew and rot to grow in the roof deck and framing. Proper ventilation with a solar attic fan will reduce moisture build up and can help prevent these problems.
Increase the Lifetime of Your Roof- Although asphalt shingles are manufactured to endure abuse from the sun for several years, an overheated, under ventilated attic exposes them to preventable heat and damage. Your attic temperatures will be reduced with a solar attic fan thereby increasing the lifespan of your roof.
This is a great video about
solar attic fans and how to install
them.
Solar powered attic fans do their job better than
conventional, electrically powered fans. They use no extra energy; in
fact they use the same solar energy that heats the house to keep the
house cooler. Their electric motors are virtually silent and they need
no extra wiring, and no additional circuit breakers for installation.
Since they are not connected to your homes electric power system, a
licensed electrician is not needed for installation. There are no
hidden costs with installation or during operation.