In March of 2011 I installed a MasterShield radiant barrier in my attic.  On advice of Oak Ridge National Testing Laboratory I stapled it to the roof rafters inside my attic.  Pre-cutting the quilted aluminum lengths makes installation easier.  I also carried a ten inch x ten foot one-inch thick board to stand on.  Starting at one end, I wallpapered the joists leaving the top one foot open to allow air movement thru my continious ridge vent.  I made sure that the chutes above the soffit vents were open to allow air movement thru the attic.  The gabled end of the house was also wallpapered with radiant barrier.  I noticed as the ceiling got more and more covered the temperature inside the attic dropped.  On a very warm, sunny early spring morning the temperature fell from about 100 degrees to about 65 degrees or so.

The rest of the story is a great success.   My power bills in the horribly hot summer 2011 in Omaha, Nebraska was a virtual clone of the bills in a mild 2010. What happened?  The total $ spent per month went down by 50% with NO life style changes.  I was amazed.   Even  a walk down the 2nd story hall was cooler than I remembered.  The southwest bedrooms were finally comfortable even in late afternoon and evening in our scorching hot July. So I saved a bunch in cooling bills.  Winter heating charges were lighter, too.

Would I recommend MasterShield double-sided radiant barrier?  Yes!  Will I sell it to the general public?  Probably not.  Why?  There is too much liability. Picture an employee crawling around inside an attic.  The chance he may be injured is a little to much.  In addition, the ever present liability of a worker slipping off a roof rafter and popping a hole in John Q Public’s bedroom ceiling is a little too real.  I ordered some product for a good customer’s college-age son to install.   It saved a ton on their electric heating bill.  Even more was saved on their A/C this scorcher of a summer (2012).  They installed the barrier by rolling it out over the existing insulation with a slight overlap at the seams.

For more information go directly to the manufacturer:  www.mastershield.com.  And thanks for working to make life more energy efficient.