Will the gypsum ceiling be deformed?
Gypsum board to gypsum as the main material, adding fiber, adhesive, modifier, by mixing to suppress, dry from. With fire, noise, heat, light, high strength, low shrinkage and other characteristics and good stability, not aging, anti-moth, available nails, saws, planing, sticky and other methods of construction.
The main categories are: gypsum plaster board, decorative gypsum board, gypsum hollow slab, fiber gypsum board.
Decorative gypsum board: to build plaster as the main raw material, hue pattern realistic and innovative.
Gypsum hollow slab: the same building gypsum as the main raw material, is a light plate, the installation does not require keel, mainly used in the interior walls and partitions.
Fiber gypsum board: In addition to building gypsum as the main material, but also incorporates the right amount of fiber reinforced materials, the bending strength than the paper gypsum board can also be used in the interior walls and partitions, in addition to wood materials can also be made of furniture The
Gypsum board ceiling prone to the main problems are two:
The first case is about six months after the completion of the ceiling, paper gypsum board seams began to crack. When the solution is gypsum board ceiling, make sure that the gypsum board is fixed in a stressless state. Keel and fastening screw spacing to be strictly in accordance with the design requirements of the construction; the whole putty to pay attention to putty, putty do not scratch too thick.
The second case is the irregular ridge of the ceiling. The ceiling of the surrounding grille or four corners uneven, or the wood moisture content of the occurrence of shrinkage deformation, can cause unevenness of the crown; In addition, the keel joints are hard to bend, boom or hanging tendons between the boss keel deformation, ; Wood boom head splitting, with steel bars do not stretch when the boom, will lead to irregular wave deformation; larger ceiling works, it is best to use light steel keel.
To prevent the ceiling from the arch, ceiling wood should be selected high-quality soft wood, its moisture content should be controlled within 12%, keel should be straight, can not have cross-section through the section of the scar, ceiling construction should be in the walls of the spring line leveling, When the level of the four weeks.
