Fig. 7(a-d) are surface temperature comparison of each wall of the buildings with the High Solar
Refleciive paint, conventional paint coaiing and uncoated. The High Solar Reflective Paint coated
building is a little less wall surface temperature than the conventional paint coated building.
Especia"lly, the roof surface temperature of the High Solar Reflective Paint coating building is less than
the conventional paint coating building 2-4'C. When compare with the uncoated building, the wall
surface temperature of the unioated is higher than the High Solar Reflective Paint coating building.
The highesi temperatures of the roof during 11 am to 2 pm are about 45-47 oC, more than the
temperiture of heat insulated coating building about 5-7 oC. At the eastern wall of building, the
highest temperature s are 42-43 oC in the morning, more than the temperature of heat insulated coating
tultaiog about 10 "C. This result is caused by the uncoated building has low sunlight reflect
perfo.riarrc", so, the almost heat energy from the sunlight can pass through the inside. The coating
with the higher values of solar reflectance demonstrated the lower surface temperature. We can
therefore conclude that the main factor affecting the thermal performance of samples Another reason, The Beger cool have mainly a composition of reflectivity and refractivity pigment
such as: Titanium dioxidi, IR reflective and microsphere ceramic. Thus, at building scale, the use of
cool colored coatings with increased solar reflectance and refractive can'impreve building comfort
and reduce cooling energy use, and at city city-scale it can contribute to the reduction of the air
temperature due to the heat-transfer phenomena and therefore improve outdoor thermal comfort and
reduce the heat-island effect.