Solar Attic Fans

Solar attic fans are a smart, cost-effective way to reduce your home’s air conditioning costs. They use a built-in solar panel to transform sunlight into electrical power for the fan’s motor.

They are simple to install and do not require wiring. Ultimate Radiant Barrier experts can typically have one installed in less than an hour.

attic fans


Solar attic fans are a cost-effective solution for ventilating the attic space. They run on solar energy to power a motor that moves air through the attic vents and removes heat and moisture from your home, saving you money on your electricity bill. They are also cheaper and easier to install than a full ventilation system.

A solar attic fan is a roof vent powered by a built-in photovoltaic panel that converts sunlight into electric power to run the motor and ventilate the attic. Depending on your home, you may need one or multiple solar attic fans to cool your house effectively. A skilled sales expert will be able to recommend the proper model for your home, taking into consideration the size and shape of the attic space as well as the type and pitch of your roof.

Solar attic fans work throughout the year to prevent heat and moisture from building up in your attic. During the summer, hot air in the attic rises and circulates through your home, making your air conditioner work harder to keep your house cool. The solar attic fan keeps the attic cool, lowering your energy costs and helping your AC to operate more efficiently.

Moisture can also cause costly damage to your home. Water vapor from showering and cooking migrates into the attic, where it can saturate insulation and encourage mold and mildew. It can also promote dry rot, which can threaten the integrity of your roof and attic structure. Solar attic fans prevent this moisture from causing expensive damage by allowing it to escape.

While it is possible to install a solar attic fan yourself, it is highly recommended that you have a professional do the job. This will ensure that the installation is done correctly and that your attic is properly insulated. A professional will also be able to determine the best placement for your solar attic fan and help you choose the correct solar panel for your home.

Energy Star-rated solar attic fans are eligible for a federal tax credit of up to 30 percent, which can greatly reduce the upfront investment required to install this product. For example, a study conducted found that installing two solar attic fans in a home with 1,000 square feet of air-conditioned living space saved homeowners about 460 kWh per year. That’s an annual savings of about $50!

Energy Efficiency

Solar attic fans make your home safer, save money and energy, protect stored items in the attic, and reduce mold, mildew, frost, and dry rot. A well-functioning attic fan constantly exchanges warm, wet air from your attic with cold, drier outside air, thereby minimizing the moisture buildup that can lead to these costly home maintenance problems.

The fan operates by using solar panels on the roof to collect the sun’s rays during the day to generate electricity and ventilate the attic space. These panels can be mounted in the curb, gable, or roof, and are available in various sizes to accommodate different roof pitches and attic square footage. Attic solar roof mount attic fans are powered by an industry-leading motor that does not require a battery or additional energy to operate and can last for years with minimal maintenance.

An attic fan is an effective cooling solution in hot months when the accumulated heat of your house’s living spaces rises into the ceiling plane and depressurizes the rooms. Air conditioners then struggle to keep up and consume more electricity, making them inefficient. Solar attic fans eliminate the accumulated heat, helping the air conditioners work more efficiently.

However, a solar attic fan only works as long as it receives sunlight and can be turned off when the attic is not in use or when the sun sets. It also requires a properly installed, air-sealed attic and insulated ductwork to prevent the fan from pulling conditioned, usable air into the attic and wasting energy in the process.

Although installing a solar attic fan does not require any extensive renovation, it is a major project that involves cutting holes in the roof. It is not recommended as a do-it-yourself project and should be performed by an experienced, professional HVAC contractor to ensure that the installation is done correctly. An improperly installed attic fan can compromise the integrity of your roof and could potentially damage living spaces below it, including your belongings. In addition, the holes in your roof will need to be repaired, adding to the cost of the installation.


In addition to lowering energy costs, solar attic fans also help homeowners save money by eliminating excess moisture. Moisture can cause damage to the roof shingles and insulation and can lead to mold, mildew, and rot. If left unaddressed, this moisture can weaken the structure of a home and put family members at risk of illness. A professional solar attic fan installation will prevent this from occurring by providing proper ventilation to the attic space.

The solar attic fan works by drawing in sunlight and turning it into electricity. It can run from sun up to sun down without requiring any additional power from your household. The energy from the sun helps to reduce cooling and heating bills and can extend the life of your roof and shingles. Using solar power also minimizes the need for expensive repairs caused by overheating or overworking the air conditioning system.

When choosing a solar attic fan, look for one that has a warranty. This will protect you from any damage to the system and give you peace of mind. It’s important to check the warranty length to make sure it matches your needs and budget. Also, make sure to choose a model that qualifies for federal tax credits.

To install a solar attic fan, first measure the attic space and decide on the location of the unit. The ideal spot for the unit is between studs in the gable area. After measuring, drive a screw into the location to mark it. Once the location is marked, loosen shingles or roofing materials around the hole and cut a small hole through the attic to mount the unit.

Once the attic fan is in place, seal any leaks and replace shingles as needed. You can also add a new attic vent to ensure the solar attic fan is properly ventilated. This will lower your utility bills and help to prevent ice dams in winter. While the installation process is simple, it’s best to have a professional do the job so that you don’t end up paying more in the long run.


Solar attic fans provide a cost-effective way to ventilate attics, garages workshop sheds, barns, and other structures. They are easy to install and require no electrical wiring, making them a safe alternative to traditional electric ventilation fans. They work in hot weather to lower attic temperatures and reduce air conditioning energy consumption. In addition, they help prevent the build-up of moisture in the attic space and help keep the roof materials dry and strong.

Solar-powered attic fans use photovoltaic cells to convert sunlight into electricity for the fan. These cells can last up to 25 years, making them a long-term investment. However, if the panels get damaged, the fan will not work properly, so it is important to check on them frequently. To avoid damaging the solar panel, always wipe it down with a damp cloth to remove dust and bird droppings. In addition, it is a good idea to trim any tree branches that might block the panel’s view.

Another common problem is when the attic fan turns on but does not move any air. This may occur because of a broken motor or a faulty thermostat. A professional can inspect the fan and determine the cause of the problem. They can then recommend a repair or replacement solution.

A solar attic fan’s most important function is to eliminate heat that accumulates in the attic during the day. This excess heat can cause a house to feel hot and uncomfortable, especially during the summer. In addition, the extra heat can also increase the cost of air conditioning bills. A solar attic fan helps to eliminate this heat, saving you money and providing comfort throughout the year.

If the attic fan is not operating, it may be a sign that the motor has stopped working. The first thing you should do is to check the breaker box and make sure that the power switch is on. If the switch is on, you may need to call an electrician to fix the problem.

Some solar attic fans have a switch that allows them to operate at night. This feature is not recommended because it can draw in ambient air from the outside, which is often more humid than attic air. This can lead to mold issues and deterioration of the attic insulation.

David Hernandez