Study on Attenuation of Color of Buildings Material in Cold Regions

With the surface materials of cold region buildings as the research object in this paper, a study on the changes in the color of surface materials in the cases of discoloration, fading and yellowing is made. The changes in the chroma, brightness and hue of visible colors in the case of the use of different building materials are analyzed. The results show: the brightness increases with an increase in the time of exposure, chroma decreases with an increase in time, chromaticness declines fastest and the changes and attenuation of hue are the slowest.