Light steel keel ceiling cracks how to deal with

Answer:

Light steel keel ceiling gypsum board joints cracks, there are many reasons. Keel fixed, crevice treatment may cause cracks. According to different circumstances to be dealt with separately: 1, first in the cracks at the hand support, care ceiling, to see if there is the rate of lift. If there is, it shows hanging off, the main vice keel has a small number of shedding or fixing screws. If there is a bigger hole, look into the head. If there is no large light hole, with self-tapping external reinforcement to see if it can work. The effect is not obvious, it is only open to increase the hanging or tightening keel;

There are many reasons for the cracking of the roof, and the repair of cracks caused by different causes is not the same. Therefore, after the cracks, the first should be how the cracks are generated, to identify the problem of pipe fittings, and then develop a rest plan, should not blindly construction. Otherwise it may fall into a crack, make up the vicious cycle of the process. There are three main reasons and treatment methods: 1, the surface of the paint surface cracking repair If only the ceiling film to generate linear, multi-angle or irregular cracks, then the problem is not very serious. The reason may be due to a brushing too thick or dry re-coated, the substrate is too loose or rough, primer and paint is not matched and so on. Repair measures: to eliminate the affected film; to ensure that the film is not a very thick construction; to ensure that the front paint dry after re-coating; if necessary, with the appropriate primer to seal the substrate; for roughness of the substrate, The use of good flexibility of the product; substrate temperature below 5 ℃, not construction latex paint; primer and finish to match. 2, the temperature changes caused by the ceiling cracking If it is due to temperature changes caused by cracking, generally appear in the surface, will not affect the safety of the ceiling, the surface can be processed about. 1, the gap is not: If the surface gap is not large, it is recommended in the gap posted a layer of kraft paper, and then brush the surface coating. 2, the gap is wide: If the surface gap is wide, then it is best to cut out a piece of gypsum board, polished into the appropriate shape, fill in the gap, and then brush the finish paint. 3, improper construction caused by the ceiling cracking if it is because the ceiling frame, gypsum board finishes, etc. ...

Another situation: the top of the hole inside the ventilation holes (into the wind), or bad joints, caused by a simple gypsum board joints cracks. At this point, peel off the zipper, open the seam (gap width in the 2-5mm). With capped gypsum blockade, until the basic dry and then paste the white latex adhesive tape (Note: must be in the zipper and then brush again white latex glue), until the white latex thoroughly dry and then putty, polished, Paint.