Answer
	The US Government sponsored a 3-year testing program to determine the benefits of reflective coatings in reducing Heat Flux into structures, and the effects of aging - dirt, air pollution, weathering, etc on the Effectiveness of the reflective coatings. The US Government's premiere lab Oakridge Ridge National. Laboratory conducted these test during a period expanding from 1997 to 2000. The 3-year term was chosen because, in extensive testing all over the USA, it was determined that roofing products loose initial reflectivity at first but at the end of 3 years reach a plateau where their reflectiviy remains constant until evetual failure of the coating. The results showed that after loss of reflectivity by all the products tested, Thermo-Shield®'s heat reduction was an incredible 66% - this was 30% better than the average of the other white coatings in the test.