Heat Islands contribute to global warming and affect human health and although urban heat islands are
distinctly different from the phenomenon of climate change [1-3]. On the one hand, there are physical
characteristics of the actual households and the electric devices they handle, mainly the air
conditioning consumed. Mitigation of the heat island effect can be achieved by the use of cool
materials. Cool materials are new complex inorganic color pigments that exhibit dark color in the
visible spectrum and high reflectance in the near infrared portion of the electromagnetic spectrum. The
new pigments increase the near infrared reflectance of exterior paints, thereby dropping the surface
temperatures (reducing heat gain) of roofs and walls, which, in turn, reduce the cooling-energy
demand of the building. From the previous study, at present there are many researches and
development about the energy saving technology by coating the surface of materials or buildings with
the insulators. When the small building was coated by the heat insulated paint that has the ceramic
atom as a main composition [4], the building coating with this paint can save the energy consumption
ofair condition system because it can reduce the heat energy transferred through the building and the load of air conditioner. Moreover, the heat-insulated paint can reducethe heat absorption and can
reflect sunlight and infrared ray [5]. The temperature on the surface is quite low when comparing with
the materials coated with natural paints. Cool colored paint formulations produced significantly higher
NIR reflectance than conventional paints of similar colors, and that the surface temperatures were
more than 10oC lower than those of conventional paints when exposed to infrared radiation [6]. From
the study of previous researches, we found that if we use the materials with insulation property, has
1ow heat absorption, can reflect the sun light or infrared ray well and has the hollow shape as the
additive in the paint, we should have the paint that can distribute and reflect the heat well and if we
use it to paint on the roof and walls of the building, we expect that it can help reducing the transfer of
heat into the building and can reduce the energy loss in cooling the building. Therefore, the objective
of this research will focus on developing the optimal paint formula (Beger Cool Ultra Violet Shield)
with color pigments to reduce the heat transfers and minimize the cooling energy consumption of a
small building coated. The test result will show the different of heat performance and energy
consumption of two building, which are coated with conventional paints (colors), and coated with
High Solar Reflective Paint (Beger Cool Ultra Violet Shield).