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Attic venting is an important aspect in maintaining a healthy energ
y efficient home. Proper venting cools your roof extending the material life and reduces the load on your air conditioning system. Attic venting also increases fresh air circulation. Powered completely by free solar energy, this sleek and efficient vent is both compact and quiet. Fully operational right fromthe box,it installs easily,with no electricalwiring. And let’s not forget powerful! Operating up to 1250 cfm, a single 20 watt unit can fully vent up to 1800 square feet.
• Reduces cooling load on AC units
• Operates on free solar energy
• Thermal switch to turn fan on if temperature in the attic is over 80 degrees F
• Adjustable solar panel
• Powder coated aircraft grade aluminum
• Best warranty in the industry
The Solar Attic Fan is a simple and environmentally sensible solution that can save you money. Powered completely by free solar energy, this sleek and efficient vent is both compact and quiet. Fully operational right from the box, it installs easily, with no electrical wiring, no expensive electrician and city permits. And let's not forget powerful! A single 20 watt unit can fully vent up to 1,800 square feet, operating at up to 1250 cfms. Place it wherever you need improved circulation; attics, lofts, workshops, storage sheds, garages, even barns.
Attic venting is an important aspect in maintaining a healthy energy efficient home. Proper venting cools your roof extending the material life and reduces the load on your air conditioning system. Attic venting also increases fresh air circulation which reduces vapor build up generated by every day activities like showering and cooking.
Excess moisture trapped in your attic can cause a variety of problems from rust and rot to increased bacteria and mold counts which can have a direct impact on your respiratory health! Passive vents have been a part of building codes for years. Soffit vents, ridge vents and louvers rely on nature to provide sufficient air pressure and air movement. So the majority of the time your attic is stagnant and continues to build up heat and moisture
1. Lowers attic temperature which reduces the load on the HVAC System.
The most obvious reason for attic ventilation is to lower attic space temperature during the warmer months. Attic temperatures can exceed 160°F during hot summer days. Proper attic ventilation can reduce those temperatures by up to 50°F. No matter how much insulation is in the attic, heat can still transfer into adjacent living spaces. In fact, extra insulation can actually add to temperature increases because heat is trapped in the insulation. Proper ventilation evacuates this excess heat build-up. As the heat is exhausted, the work load of the air conditioning system is reduced, thereby saving energy and extending the life of the air conditioning system.
A thermal switch sets the fan in motion if the attic reaches over 80 degrees Fahrenheit and turns it off once the temperature goes below 70 F. This ensures that during the hot days the attic is sufficiently cooled while in the winter the fan stays off to capture the temperatur and help heat the house.
2. Extends the life of the roofing materials.
Though asphalt shingles are designed to take the abuse of the sun for many years, they are subjected to greater temperatures when the roof decking is allowed to overheat, which is just what happens in an under ventilated attic.
In the cooler months, moisture is the most serious concern. Even with the use of vapor barriers to keep moisture from entering the attic, there are air leaks around ceiling light fixtures, bathroom exhaust fans that allow unwanted moisture into the attic. Moisture condensing on the framing members and the inside of the roof deck can lead to the growth of mold, mildew and rot in the roof deck and framing. A good indicator of moisture problem is rusty roof nails sticking through the roof deck.
3. Asphalt shingle manufacturers warranties require proper attic ventilation.
Attic ventilation is required in cold environments - it evacuates the warm moist air that heat sources produce. Hot moist air lingering in the attic spaces can condense on the underside of the roof sheathing and rot it out and also causes mold to develop on the interior walls. Cold air in the attic space will not affect the temperature in the adjacent living spaces if properly insulated.
Good ventilation helps prevent ice dams, which begin to form when warm air in the attic melts the snow from beneath and creates runoff that refreezes on the colder eaves.
1) Does a solar attic fan qualify for a federal tax credit?
ANSWER: YES! Both the Purchase Price AND Installation Cost of a solar attic fan qualify for a 30% federal tax credit. The credit applies to equipment placed in service between January 1, 2009 and December 31, 2016. IRS Form # 5695 is needed to apply for this credit.
2) What size fan do I need?
ANSWER: A solar attic fan should be sized to provide 10 attic air volume changes per hour. To figure out what flow rate this works out to, figure out the volume of your attic in cubic feet. Multiply your attic volume x 10 air changes per hour to get the total flow required per hour. Since fans are sized in terms of their cfm (cubic feet/minute) output, divide your total flow per hour by 60 to get cubic feet per minute.
Required flow rate in cfm = (attic volume x 10) / 60
Now check the fan specifications to find the fan or combination of fans required to meet your ventilation needs. It is also very important to make sure there is enough air inlet area in your attic to allow fresh air to enter and replace the hot air being exhausted. A minimum of 1 square foot for every 360 cfm of exhaust is required. Typically soffit vents are used as inlets.
3) How long will a solar attic fan last?
ANSWER: Solar attic fans are designed to provide many years of trouble free operation. Natural Light Fans offer the longest warranty periods among all solar attic fans with 25 Year parts warranty
4) Can my attic have too much Ventilation?
ANSWER: The amount of ventilation an attic needs is determined by many factors, but in general the more the ventilation your attic has, the better off you will be. As attic air turnover is increased and fresh make-up air is brought into the attic, the attic temperature will begin to approach that of the ambient outside air temperature, which in turn minimizes heat transfer into your home. As long as your attic has plenty of fresh air make-up ventilation, more airflow through the attic will only increase the cooling performance of your solar attic fan.
5) Why would I want to cool off my attic?
ANSWER: During the summer, as the sun radiates heat onto your roof, your roof's shingles or tile becomes very hot. This heat is transferred through the roof and in turn heats up the air inside your attic. If the hot air stays inside your attic, the heat from this air will eventually enter your home.
While attic insulation slows this process, it does not eliminate the heat transfer process entirely. If your attic is not very well insulated, it will do very little to stop the heat from getting through. Additionally, a hot attic stays hot long after the sun goes down, so the process of heat transfer into your home never really ends.
By removing the hot air from your attic, the process of heat transfer into your home is minimized. The less attic heat that is transfer into your home, the less your air conditioner will need to work. If your air conditioner unit doesn't need to run as much to keep your home cool, you save energy and money.
6) What are the cost benefits of installing a solar attic fan?
ANSWER: How much money you will save is greatly dependent on the price of electricity in your area, the amount of attic space in your home, the efficiency of your attic insulation, and the amount of ventilation your solar attic vent is able to provide. In our experience, a typical installation will usually pay for itself in savings within 1-2 summers of use
7) How are ridge vents, or gable vents different from a solar attic vent?
ANSWER: Ridge vents, gables vents, and dormer vents work by passive (natural) draft air convection. This means that as hot air rises in your attic, it should flow out from these vents creating a natural draft through the attic. However, as you have probably noticed if you currently have any of these vents installed on your home, they are not very effective at reducing the temperature of your attic.
Solar attic vents operate on the principle of active (forced) draft air convection. Our vents create an air draft through your attic many times more powerful than that of natural draft air convection techniques. By inducing a greater air daft through the attic. these solar attic vents can effectively cool your entire attic and keep it cool throughout the day..
• Natural Light incorporates an angled throat within the flashing that provides a venturi effect, which increases airflow.
• Natural Light was designed from the ground up to minimize obstructions in the flashing and shroud.
• Natural Light designed a mounting bracket that houses the solar panel that allows for angling the panel.
• Natural Light offers an optional special order remote solar panel which is installed away from the attic fan housing. It is used in applications where there is limited sunshine where the unit is to be installed. The remote panel is installed in a sunny area, capturing maximum amount of sunlight and therefore achieving optimal attic fan performance.
• Natural Light powder coats the entire assembly, inside and out, in a neutral gray color thus ensuring that it does not act like a heat sink.
• The solar panel mounting bracket allows for an envelope of cool air to continually circulate around the entire solar panel.
• Natural Light is constructed of .080 (14 gauge) aluminum, the flashing and shroud are seamless ensuring weather tight installations.
• Stainless steel animal protection screen.
• Stainless steel hardware throughout.
• Powder coated to withstand any environment.
• Fifty year Neutral Cure silicone bonds the flashing to the roof.
Better by Design...Natural Light Solar Attic Fan is engineered to be the best, incorpoating the best features, the best materials and the best construction, making it the Natural Choice over our competition!
Adjustable Solar Panel
Our solar attic fan is designed with a mounting bracket that houses the solar panel allowing the panel to be angled for optimum performance. Many of our competitors offer a fixed solar panel which can hinder the units performance.
Thermal Switch
The thermal switch sets the fan in motion if the attic reaches over 80 degrees
Fahrenheit and turns it off once the temperature goes below 70 F. This ensures that during the hot days the attic is sufficiently cooled while in the winter the fan stays off to capture the temperatur and help heat the house.
Powder Coated Inside and Outside
Natural Light powder coats the entire assembly in a neutral gray color thus ensuring that it does not act like a heat sink. Many of our competitors either paint only the outside or do not paint the unit at all.
Aluminum Fan with 5 Blades
Natural Light offers a five-wing precision balanced aluminum blade for the highest cfm output. Many of our competition offer only 3 or 4 blades and many are made of plastic.
Aircraft Grade Aluminum Flashing
Natural Light solar attic fan flashings are manufactured from aircraft grade .080 gauge aluminum while many of our competitors flashings are manufactured from sheet metal or galvanized steel.
Aircraft Grade Aluminum Hood
Natural Light solar attic fan hoods are also manufactured from air-craft grade .080 gauge aluminum while many of our competitors offer either polypropylene (plastic), sheet metal or galvanized steel.
Best Product Warranty in the Industry
Natural Light offers a 25 year warranty on the housing, 15 year warranty on the solar panel and a 5 year warranty on the motor - the best warranty in the industry.
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