Energy Efficiency and Therma Shield

• Therma Shield is a two sided reflective barrier of 99% pure aluminum foil, woven and reinforced with polyethylene fabric.
• Regular insulation contains air spaces that retard primary conductive heat flow. Installing Therma Shield will reflect up to 97% of incoming radiation, allowing very little thermal energy to pass down into your home. It works like your thermos bottle, which uses a reflective coating to keep beverages hot or cold all day.
• Improves the performance of mass insulation: Without this barrier, your roof radiates solar generated heat into the attic insulation, which is quickly absorbed and transferred to the ceiling. This will eventually heat up your ceiling…

Side-by-side test revealed 23-degree drop in attic temperatures; improved A/C efficiency

(WORLD-WIRE) DALLAS, July 15 /PRNewswire-FirstCall -- Centex Corporation (NYSE: CTX) and the Energy Center of Appalachian State University (ASU) today announced the results of a case study to measure the benefits of adding radiant barrier in home attics. Key findings of the study include:

• A 23-degree drop in the peak attic temperature occurred in a home outfitted with radiant heat barrier versus a similar home without the barrier;
• A 20 percent reduction in the run-time of the air conditioning unit during the seven hours of peak attic temperatures; and
• The radiant barrier improved the efficiency of cooled air delivered through the air ducts by 57 percent during this period.

"This particular study showed the installation of a radiant barrier in an attic can make it easier for your air conditioner to do its job in the summer heat," said Jeff Tiller, P.E., Appalachian State University. "That translates to lower electricity usage, which also impacts the carbon footprint of homes."

More information on the study can be found by going to the Environment News Service website: http://www.ens-newswire.com/index.asp

Solar Attic Fans

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.

A single 25 watt solar attic fan can move an incredible 1550 CFM of airflow, capable of adequately ventilating and attic space of 2300 square feet!  More ventilation capacity means better cooling performance and they come with a Lifetime Warranty