Solar Powered Attic Fans
Most people forget about their attics, but ventilating the space is critical to keeping your roof in good shape. Solar powered attic fans are a green way to do so.
Solar Powered Attic Fans
It is important that you maintain ventilation in your attic as one of your routine home maintenance items. When you vent your attic, you are cooling your roof. This allows the roof to last much longer. It also reduces the amount of work your air conditioning system must do. In addition, you will reduce vapors that are released into your attic space from everyday activities such as cooking meals and running the shower. If too much moisture builds up in your attic, problems such as an excess growth of bacteria and rust might occur. This can cause respiratory problems, especially for children. In recent years, building codes have been changed in order to deal with this negative effect. However, these systems use natural air pressure to function. Because they are passive, the air in the attic does not circulate very well and moisture and heat can still build up. If you use a solar powered attic fan and exhaust system, you are likely to have much better results.
These solar powered attic fans are becoming more popular, and thus their availability is increasing. Solar powered fans allow you to use the sun’s energy which will reduce your electric consumption. They are run by a small solar panel. This panel provides energy to a DC motor during sunshine hours. The fan has intake vents which allows for a high powered ventilation system without increasing your electric bill. They typically will exhaust the air in the attic at around 800 to 1200 cubic feet every minute.
The vents for these systems are placed on the roof, usually high near the ridge. Most systems use additional vents which are located underneath the building or in the gable. This allows a more balanced airflow. You can also use a solar powered ventilator. Although you will have initial costs involved with the installation, after that your system will be free to run.
Solar powered attic fans are more affordable to operate than conventional fans. While they may cost more to purchase, they are free to operate. In addition, many municipalities offer rebates and purchase incentives to homeowners who install solar powered attic fans. Another way in which solar powered attic fans save money is by reducing the summertime cooling load.
Most models of solar powered attic fans are relatively easy to install, with some models claiming an installation time of less than 30 minutes. Because no wiring is needed, the installation can be done by an experienced do-it-yourselfer or handyperson. Solar powered attic fans work best when installed in full sunlight, with a Southern exposure. They should not be installed under overhanging trees or structures that cause shade.
