You're probably wondering what a Smart House Radiant Barrier is, let alone why it would be in your attic. It's the most cutting-edge version of home insulation, and using the technology -- along with other advanced home-building techniques -- can amount to a 50 percent increase in heating and cooling efficiency [source: Smart Houses].
In fact, the Smart House Program, a business venture started by Guaranteed Watt Saver Systems, Inc. and Smart House Consultants, often guarantees a ceiling on your energy usage each month.
The technology was first used to create an airtight Apollo spacecraft. Efficiency has much larger implications in space, where outside temperatures range from 400 degrees Fahrenheit (204.44 degrees Celsius) to 400 degrees below zero Fahrenheit (minus 240 Celsius) [source: Smart Houses]. The advanced seal kept the temperatures inside the vessel comfortable.
The main component of the technology, an aluminized heat shield, translates to highly efficient residential construction. The barrier keeps warm and cold air out -- along with water vapors -- and reflects 95 percent of the sun's radiant heat [source: NASA Benefits at Home].
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