Reflective coatings have been promoted for improved energy performance of buildings and are
considered in some building regulations such as the California Title 24 standard. This paper provides
an analysis of the energy impact of different internal and external surface coatings on heating and
cooling energy performance across a variety of climates, constructions and building types. The analysis
is undertaken with the ESP-r-integrated whole-building simulation program. The results are compared
with other studies and conclusions are drawn. The effect of the reflectivity and emissivity of roof
surfaces is shown to affect the energy performance of buildings and to vary with the context.