It is bilayer structure exterior wall material, a kind of polymer based composite, which is made from vinyl compound and various kinds of additive. UV resistance and abrasion resistance are the effects of surface course. Enhancing the strength of the panel is the effect of the bottom course. PVC siding is a kind of new type building material.

PVC siding is an innovation of construction and decoration material, which is a substitution of exterior wall painting and ceramic tile. It is made of PVC which is treated in special technology. It is used widely in the projects of villa, multifloor housing, plant building and reforming of existing building, because of its eccelent weather resistance and compact mordern design with distinct grain. Decorated with decay and fire resistant PVC siding, the building looks beautiful and simple. The installation of the siding is very easy. The PVC siding is ideal decorative material, because it is recyclable and pollution free in both production and installation.