Influence of Solar Radiation of External Decorative Materials on Heat Consumption of Buildings

There are many types of external decorative materials of buildings, which have different properties in absorbing, reflecting and re-radiating the solar radiation because of their different color, texture and degree of roughness. Different external decorative materials for the buildings with same direction, the amount of solar radiation will be different. The correction of heat- transferring coefficient of envelope is related not only to the direction, but also to the selected external decorative materials of buildings. In this paper, the method is to establish thermal gain or loss model of architectural envelope, to analysis the influence of solar radiation of different external decorative materials on heat consumption of buildings. Aim to provide the reference for the selection of external decorative materials in architectural design, and to improve indoor thermal comfort and reduce architectural energy consumption.