Polystyrene granule insulation slurry external wall insulation process waste polystyrene plastic into 0.5mm ~ 4mm particles, as a light aggregate to match the thermal insulation mortar. The technology includes an insulation layer, a crack resistant protective layer, and a barrier coating. Among them, ZL rubber powder polystyrene granule insulation material and technology was listed as a national-level construction method by the Ministry of Construction in 1998, and it is currently widely recognized as an external wall insulation technology.

The construction technology is relatively simple, which reduces the labor intensity and improves the work efficiency; it is not affected by the difference of structure and quality. When the defective wall is constructed, the wall does not need to be repaired and leveled, and the external wall insulation project is solved. Due to the poor use conditions, the interface layer is easy to debond and empty, and the surface layer is easy to crack. Compared with other external insulation, the building construction cost can be reduced when the same insulation effect is achieved. Compared with the polystyrene board outer insulation wall, it can be reduced by about 25 yuan per square meter.

In the energy-saving insulation wall technology, the wall is made into a sandwich layer, and materials such as perlite, wood chips, mineral wool, glass wool, polystyrene foam and polyurethane foam are filled into the interlayer to form an insulation layer.

Prospects for the development of metal exterior wall insulation panels Because the superiority of exterior wall insulation is increasingly recognized and accepted by all parties, my foreign wall insulation engineering is also rapidly increasing, and the energy-saving renovation of existing buildings is gradually On the agenda, external thermal insulation of the external wall must be a basic measure for building energy-saving renovation. As the future exterior insulation technology will be more diverse, different insulation materials, different structures and different processes will coexist, and China's economy is booming, the scale of the building is huge. The market for exterior insulation is likely to become the world's largest and most dynamic external insulation market.