Monday, July 2, 2012

The Whole Truth about Attic Ventilation

An effective attic ventilation system is a fundamental concern
every month of the year.
Most homeowners believe the principal purpose of attic ventilation is to remove heat from the attic in the summer.  That’s true.
But attic ventilation also removes damaging moisture in the winter. 
During the heat of the summer, ventilation helps keep attics cool.  During the cold winter months, constant airflow in the attic reduces potentially damaging moisture.  Properly ventilating attics is an essential precaution to protecting the long-term well-being and value of your home. 

The integrity of roofing and insulation performance is directly related to the effectiveness of attic ventilation:
When inadequate attic ventilation exists, insulation no longer can compensate effectively for temperature extremes.  Studies have shown that the dynamics of air movement throughout a house usually produces moisture in the attic, where it condenses on rafters and roof decking.  Left unchecked, this condensation can saturate the roof, attic floorboards, insulation, and even walls and ceilings. 
             A high-efficiency ventilation system helps solve attic moisture problems by allowing a uniform flow of air to sweep the underside of the roof sheathing.  In higher heat, this ventilation system will exhaust hot air from the attic reducing the temperature in the home’s living spaces.  In colder weather, it exchanges warm, moist air with cooler, drier air.  In both cases, the result is greater living comfort, less energy use and less structural damage.
Efficient insulation increases the need for effective ventilation.
Heavier insulation holds and absorbs more heat resulting in overwhelming attic heat buildup.    On hot days the upper rooms of a home are always warmer.   In most homes, the lack of adequate attic ventilation actually causes the downward flow of heat.  With an unventilated or inadequately ventilated attic, the longer the hot weather persists, the more uncomfortable (or unbearable) the home becomes because the heat loss overnight insufficiently compensates for the heat gained during the day.  Ultimately, this heat accumulation costs homeowners more to operate their air conditioning units and fans, a problem further magnified during these times of rising energy prices and black out periods.

Homeowners today have a variety of choices for ventilating their attic. The three most predominate systems are:
*      passive systems
*      electric-powered systems
*      solar-powered systems

Solar-powered systems are the most versatile and efficient ventilation system.  Solar-powered units do not need breezes, but do require locations that receive adequate sun exposure for peak operational performance.
Like traditional attic fans, solar attic fans remove hot, stagnant air from your attic which allows your air conditioner to more efficiently cool your house – cutting your energy costs up to 30% while extending the life of your HVAC. What makes solar attic fans even better is that they require no electricity. That means not only are your operational costs zero but installation is wire free and a breeze!
As the inventor of the original solar attic fan, SunRise Solar has proven to be an industry leader for over 10 years.

SunRise Solar attic fans are almost undetectable. With a sleek design for every rooftop, solar attic fans blend seamlessly into your roofline. And unlike an electric attic fan, they are extremely quiet. If it wasn’t for the energy savings, you might forget it’s there.

SunRise Solar's fans have been named "Best Product" by BUILDERnews Magazine and "Most Valuable Product" by Building Products Magazine two years in a row.
SunRise Solar attic fans are made out of UV stabilized ABS plastic - the same material used on car bumpers, kayaks, motorcycle helmets, playground equipment and much more. It's completely noncorrosive, heat and flame resistant and can withstand environmental abuse that metals cannot.
Call Naturalight Solar today for you free attic ventilation quote: 707-527-5330

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