We installed Radiant Barrier heat shield by Greenhome Specialties in our attic and garage door and film on our windows this past October in Tooele.? I just wanted to provide you some feedback on how satisfied we are with the product. For the past three months, we have used 38% less natural gas to heat our house when compared to the same time period last year.? We also added 900 additional square feet to our home by finishing our basement in April 2012. Last year we were not heating our basement and we have kept our thermostats the same.? I’m quite sure our savings would be even more if we didn’t have the basement finished. I am also tracking electrical usage but I don’t expect to see any difference till summer when we are running the AC. Thanks again for providing such great products.