Gypsum board ceiling how to avoid the cracks? I know that can not be completely avoided, but how to do the best. Find detailed answers, as much as possible to explain!
Caulking material
?????? The caulked material includes a seam tape and a stopper. The seam has good self-adhesive ability and strength, and acts as a stiffener at the plate joint. Seal putty not only have a good strength, cohesive, but also have a certain toughness and good construction performance. If you fail to meet the above requirements, it is inevitable to produce cracks.
Gypsum board choice
?????? Gypsum board has a common type, waterproof and fire-resistant three, the design can be based on different requirements, different regions and construction season selection. Keel spacing and gypsum board thickness of the relationship between keel spacing should be reduced. When the requirements of high moisture resistance, such as spraying in the board, etc., should be added in the board waterproof layer, can be a layer of water-resistant putty or brush colorless waterproofing agent.
?????? Gypsum board is the surface material, is relying on high-strength tapping screws and light steel keel tightly fixed together, if the gypsum board and keel can not be firmly fixed between, when there is external force, gypsum board joints will produce shear Force, resulting in plate joints crack, so the strength of gypsum board and the shape of the edge is very important factor. Decorative market in the quality of gypsum board is not good, the company's experience in the project should be used in the production of large manufacturers of good quality gypsum board, high strength, good toughness, uniform foam, edge forming full, from the material Solve the crack problem.
Reasonable selection of light steel keel and accessories
?????? Ceiling skeleton with light steel keel composition, its strength, stiffness, flatness is a measure of skeleton quality indicators. If the keel straightness is not good, will make the skeleton is not flat, then the gypsum board installed in the keel, it will produce internal stress, the internal stress in the release process will inevitably lead to crack at the seam. Therefore, the design of the primary and secondary keel specifications at the same time, should be based on national standards, in the drawings on its stiffness and straightness requirements. Do not ignore the primary and secondary keel hanging parts, connectors and access to long pieces of reliable product specifications. To ensure that the installation of the skeleton in a stress-free state, effectively avoid the gypsum board joints crack.
