Business World |
January 2015
176
reaches an end point such as the ground,
water, or structures and roads. When this
occurs, the radiation is absorbed by the ma-
terial, causing a rising heat level for the ma-
terial as well as the Earth's atmosphere. But
with stainless steel, the process is greatly re-
duced says Dr. McGuire. "The suns radiation
is partly absorbed by the atmosphere on the
way down, and that which isn't hits the stain-
less steel and is reflected back at the same
wave lengths that were able to penetrate the
atmosphere. The energy that hits the roof
