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Understanding the Process of Solar Attic Fans


One of the overlooked areas of a home when it comes to air circulation is typically the attic. Because it is directly beneath your roof, and usually lacks any direct source of air circulation, the temperatures in this space of the home can be noticeably higher than other areas. Elevated temperatures inside the attic can be a contributing factor to increased energy bills as well as unexpected damage to a home’s roofing system, especially during the hottest months of summer in Texas.

To tackle this problem, and mitigate the various concerns that come with elevated temperatures in this space without raising energy costs, solar-powered attic fans have been introduced. By providing a constant, steady flow of air throughout the attic, stale, warm air is moved out of the area so that fresher, cooler air can develop as part of a process known as air exchange.

The Disadvantages of an Overheated Attic

As a general rule of thumb, the space in an attic should never get hotter than 10 to 25 degrees above the actual air temperature outside the home. Higher temperatures in the attic can lead to increased energy costs on your utility bill as well as uncomfortable temperatures in other parts of the home along with the very real risk of causing unexpected damage to your roofing systems.

Keeping your attic space properly vented can go a long way towards improving the overall temperature stability of your home by keeping everything cooler during the summer, and warmer during the winter. Because standard building codes require every home to have some type of passive ventilation system, a solar attic fan can take advantage of the existing circulation systems to move air effectively through an attic space when placed correctly.

The Advantage of Solar Energy

One of the biggest reasons why more homes do not already have motorized ventilation systems inside the attic space is because of the potential for increased energy bills, combined with the prohibitive costs of installing new wiring into the attic. The solution to both of these concerns is solar energy. As a free, practically unlimited energy source, solar energy provides the perfect solution for powering a motorized ventilation system at precisely the times during which it is needed most.

Solar energy is most effective during hot, bright days, and this is exactly when additional ventilation is needed to circulate air inside attic spaces. By functioning as a free, constantly functioning source of ventilation, a solar-powered attic fan can also be an incredible way to not only extend the life expectancy of your roofing system but also reduce energy costs overall.

Where Should a Solar Powered Attic Fan Be Installed?

Because there are a variety of concerns and factors that can determine the optimal placement for any attic ventilation system, the ideal placement of a solar-powered attic fan is something best decided by a professional. In most cases, an experienced installation technician like the members of our team at Kosmos Solar can take the time to understand the positioning and angles of a roof while also studying the location of existing ventilation systems before deciding on an ideal placement position.

In general, the placement of an attic ventilation system should be in a location that will allow for maximized air circulation while taking advantage of the existing ventilation systems to promote proper airflow. Through effective temperature regulation in the attic, other areas of the home can benefit as well. This is especially true for residents of Texas who may be struggling to maintain comfortable temperatures in their homes during the hottest parts of the summer.

Breathe Easier with a Solar Powered Attic Fan

Another important benefit of a ventilation system in the attic is the reduction of moisture and mold growth that can occur, especially during the colder months of the year. When an attic is poorly ventilated, the collision of heated air inside with colder air outside can lead to condensation and moisture buildups in areas of the attic that cannot easily be seen. This will eventually lead to damaged structures in the roofing system along with an increased potential for mold growth once the temperatures begin to rise again in Spring.

As a ventilation system powered completely by the sun, a solar-powered attic fan is more than just a way to cool off your home. Through effective ventilation at no cost, you can enjoy many benefits including reduced energy bills, more comfortable temperatures, and even increased life expectancy for your roofing systems along with a reduced risk of water damage and mold growth in the attic.

To find out more about solar-powered attic fans, or to ask about having one installed in your home, be sure to contact our team right away!

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