避免材料受潮:夏季空气湿度大,一些易吸收水分的材料如木材、板材、石膏板,在运送或存放的过程中处理不当,极易受潮。受潮的板材做成的木龙骨,木器,在空气中逐渐干燥,水分挥发后,极易开裂变形,还会影响其它材料。如用板材做龙骨的石膏吊顶开 To avoid moisture in the material: In the summer, the humidity of the air is high. Some moisture-absorbing materials such as wood, boards, and gypsum board are handled improperly during transportation or storage, and are easily exposed to moisture. The wooden keels and woodware made of damp plates are gradually dried in the air. After moisture evaporates, they are easily cracked and deformed, and can also affect other materials. For example, plaster ceilings with keels for keel