3. Weather resistance: Weathering refers to the insulation system for the outside world the ability to adapt to climate change, refers to the different climatic conditions, the overall stability of the system, the insulation effect if there is a series of issues related to quality changes. Weather resistance is a very important indicator of the insulation system. The biggest difference between P board and fire board is not flame retardant, weighing slightly less: fire-retardant board more than 32 kilograms per square, Cape plate is only about 28-31 kilograms. "The price is very high Xinji extruded sheet, flame retardant panels cost therefore also increased significantly." The general board did not add flame retardant effect is not good, or even flame rate is zero. This board is relatively cheap price, 340 yuan per cubic meter; a variety of specifications, 2 cm to 10 cm and other models, the price is not the same. Retardant board points B1, B2 level, see GB8624-1997 (old standard) extruded board, fire board to produce technically demanding, good flame-retardant effect, can effectively protect the extruded sheet manufacturer of construction safety, reduce project risk and loss, therefore, the Ministry of Construction and the Ministry of Public Security jointly issued No. 46 prohibits non-fire-retardant wall panel, because the project cost will increase, many construction side to take the risk, which makes the project very serious security problem. Extrusion board company, Zibo Rui environment Building Materials Co., Ltd (online consultation), extruded sheet provided by Zibo Rui environment Building Materials Co., Ltd. Zibo Rui environment Building Materials Co., Ltd. (www.lcxps.com) Shandong Zibo, insulation, insulation materials, leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Zibo Rui environment Building Materials Co., Ltd. leadership with the staff warmly welcome all inquiries negotiations to create Zibo Rui environment Building Materials Co., a better future.