For the traditional exterior wall decoration materials, the problems are prevalent that due to the substrate degradation caused by water and cold penetration, thus indoor wall seepage etc. is generated. While the excellent structure of Tenghui siding itself and compact bump splicing groove catching type installation method between the plates, have avoided the structural damage caused by rain, snow, freezing, melting, dry and wet cycles, after the installation, it has eliminated the wall seepage worries, which has effectively avoided the phenomenon of indoor wall surface mould. Even in the cold regions, Tenghui siding with stable property has no worries about seepage and deformation, extending the service life of the construction.