A. From heavyweight to lighter panels and structures (natural stone is 25mm thick, new materials are as thin as 1mm)
B. From fewer varieties to more diverse panel types and richer colors (nearly 60 types of panels are used for exterior walls, including stone, ceramic panels, microcrystalline glass, high-pressure laminate, cement fiberboard, glass, inorganic fiberglass, terracotta panels, and metal panels)
C. Higher safety performance
D. More flexible, convenient, and faster construction techniques
E. Improved waterproofing performance, extending the lifespan of curtain walls (from closed curtain walls to open curtain walls)
F. Environmental protection and energy saving (before 2013, the most commonly used panels in the European and American building markets were metal decorative insulation panels, composed of a colored painted aluminum-zinc alloy carved surface, a polyurethane insulation layer, and fiberglass cloth; combining decoration and energy-saving functions, the paint does not fade for 10-15 years, and the overall service life can reach 45 years).
