Fiber cement board is a kind of cement with the main raw materials, plus some natural fibers and auxiliary materials, after a certain production process molding, pressure, steam curing and other special technology processing. In foreign countries, the appearance of fiber cement board is relatively early, which is generally used for the external wall panel of commercial buildings and civil buildings. As a block style, fiber cement board can be used in attic floor, external wall, and fireproof inner partition board. According to the density, it can be divided into three levels: low density, medium density and high density. Then, the conditions for the use of fiber cement board with different density are also different. For example, the low-density fiber cement pressure plate is suitable for areas not exposed to the sun and directly affected by rain and snow, because the effect of low-density fiber cement board in fire prevention, heat insulation and waterproof is the lowest. The medium density fiber cement board manufacturers in Shanghai are suitable for the areas that may be directly affected by the sun or rain and snow, and their fire and water resistance properties are moderate. The high-density fiber cement board is suitable for any area, and the cutting trace on the edge is relatively neat, and its functions are also the best in all aspects. It can be used for the external wall to effectively heat insulation and fire prevention, and can not be affected by moisture and deformation in rainy and snowy weather. The strength is very high. If you want to achieve better effect, you can choose thicker thickness, and fiber cement board manufacturers can To be customized. No matter the size and thickness of the board, the density can meet the needs of the building.