function

(1) Soundproofing. The double-layer separated soundproof wall composed of thin plates and the double-layer soundproof wall composed of hollow strip boards have a sound insulation effect equivalent to a 24 centimeter thick brick wall, and the sound insulation index can reach 40-50decibel.

(2) Fire prevention. Gypsum board is a non combustible material with certain fire resistance, and some can be used as a fire protection layer for steel structures.

(3) Strength. When the lateral load on the wall is 250 Pa, the maximum lateral deformation of the wall shall not exceed 1/240 of the wall height.

（4）HumidificationWhen the humidity in the air is higher than its own moisture content, gypsum board can absorb the moisture in the air; On the contrary, gypsum board can release the moisture in the board and regulate the humidity in indoor air.