Is Attic Heat Destroying Your Home?
Attic venting is an important aspect in maintaining the functions of your home. Proper venting cools your roof, extending the material life and reducing the load on your air conditioning system. Attic venting also increases fresh air circulation, which recuces 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 direct impact on your respiratory health. Passive vents have been a part of building codes for years, but to really get the benefits of venting, soffit vents, ridges vents, and vouvers 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.

An Environmentally Friendly Solution
Natural Light's Solar Attic Fan (SAF) is a simple and environmentally sensible solution that can protect your home and 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 no permits. And let's not forget powerful! Operating at a whopping 850 cfm, a single unit can fully vent up to 1200 square feet . Place it wherever you need improved circulation: attics, lofts, workshops, storage sheds, garages- even barns.

Hot Weather - 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 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 of the air conditioning system is reduced thereby saving energy and extending the life of the air conditioning system.
 
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.  

Cold Weather
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. Good ventilation also 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.
 
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.

Natural Light, Your Natural Choice
When Investing in a product to improve your home and quality of life, you want assurance that it's performing efficiently and effectively. Our attention to detail, like the following critical factors, sets Natural Light apart as your Natural Choice.

Back Pressure of Exhausted Gasses
As the exhaust travels through a vent, it can build up pressure within, making it work less effectively. Natural Light's design minimizes obstructions in the flashing and shroud and incorporates an angled throat to facilitate a venturi effect, or suction effect, to increase air flow. This improvement increased cfm output and also reduced wear on the motor.

Sun Exposure on th Solar Panel
Other fans incorporate the solar panel into the fan housing, leaving you to compromise between optimal venting and optimal solar exposure. Natural Light's solar panel is fitted with an exclusive bracket, allowing you to mount the panel at the best collection angle and position, either on the fan housing or directly on the roof. With Natural Light, you can place your vent where you need it most and your panel where it will work the best.

Solar Collector Temperature
As a solar panel heats up, it becomes less efficient at converting light to energy. Natural Light reduces heat by mounting the solar panel in a raised bracket, promoting cooling air circulation. The solar panel mounting bracket allows for an envelope of cool air to continually circulate around the entire solar panel. The entire assembly is powder coated in a neutral gray color thus ensuring that it does not act like a heat sink.

Adaptable to any location, roof type, in any environment.
Natural Light is constructed of .080 (14gauge) 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.

Warranty
Thanks to the industry's leading manufacturers of solar panels (BP), low voltage DC motors (Pittman) and the use of high quality materials and precise construction techniques employed by Natural Light, this product is covered by an industry leading 25-year warranty on the housing, 10-year on the solar panel, and 5-year on the motor.

Installation Instructions (PDF)