A Shield Products roofing system will do more than protect your building. It will also protect you budget from high energy costs. Our product reflects over 90% of the sun's energy, providing years of savings in cooling and heating costs. Even more savings are often available through local, state or federal government incentives for building owners who install energy-efficient roofing. Superior Shield with ceramic microspheres qualifies under these programs. See Energy Star for federal programs or visit DSIRE to see what your state offers.

RADIANT BARRIER vs INSULATION
Insulation:
There are many factors that come into play when using R values to compute heat loss for a particular wall. Manufacturer R values apply only to properly installed insulation. Packing two layers of R-19 into the thickness intended for one layer will increase but not double the R-value. Another important factor to consider is that studs and windows provide a parallel heat conduction path that is unaffected by the insulation's R value. The practical implication of this is that one could double the R value used to insulate a home and realize substantially less than a 50% reduction in heat loss. Even perfect wall insulation only eliminates conduction through the insulation but leaves unaffected the heat loss through such materials as glass windows and studs not to mention heat losses from air exchange.

RADIANT BARRIER
Superior Shield Radiant Barrier Insulation:
Evacuated microspheres, insulating materials constructed from such microspheres, and methods of manufacturing same provide insulation and reduce heat transfer through radiation, conduction and convection. Additionally, an infrared reflective coating is provided on a microsphere surface to reduce radiant heat transfer. A protective exterior coating is also provided to protect an exterior applied infrared reflective coating on such a microsphere. Furthermore, the spheroidal geometry of such microspheres restricts heat transfer to point-to-point conduction there
between. Finally, evacuated microspheres further reduce through-heat transfer within a shell. One embodiment utilizes such evacuated microspheres in constructing a Radiant Barrier roof coating which appreciably reduces cooling and air conditioning power costs for a building. An alternative embodiment utilizes such a Radiant Barrier coating in constructing an exterior paint for a building. A method of evacuating such microspheres involves in-permeation of selected gases within a microsphere which reacts under sufficiently high temperatures with
residual gases within the microsphere to produce by-product gases which out-permeate from within the sphere under sufficiently high temperatures. Furthermore, a method of constructing suitable glass microspheres which are suitable for evacuating via out-permeation is also described.

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