Yes, tell me how to repair the cracks on the edge of wooden ceiling.

1, it is best to use stainless steel drywall nails to fix the gypsum board, so that the nails will not rust and the gypsum board will be beautiful for a long time to come.

2. Nail holes in gypsum board are usually treated with rust-proof nail hole putty.

3. The gap between two gypsum boards should be handled well to avoid obvious cracks in the future. Ordinary workers will use 90 1 glue and gypsum powder to fill the joints.

4. After the gypsum powder fills the gap, it is best to stick it on the surface with anti-crack tape to prevent the top surface from cracking due to thermal expansion and contraction. Attention should be paid to the elimination of air bubbles, so that the adhesive tape and gypsum board can be completely and closely combined.

5. Post-treatment is very important for suspended ceilings with special shapes. Ceiling, such as round and wavy, needs to be repaired slowly.

The reason of ceiling cracking-paint surface cracking

If only linear, polygonal or uncertain cracks are produced on the paint film of the ceiling, the problem is not serious. This phenomenon may be the first time, because the coating is too thick or not dry repainted, the substrate is too loose or rough, and the primer and topcoat do not match.

Repair plan: remove the affected paint film; The paint film in one construction should not be too thick; Ensure that the previous paint film is dry before repainting; If necessary, seal the substrate with a suitable primer; For the substrate with large roughness, use products with good flexibility; When the base temperature is lower than 5℃, latex paint cannot be constructed; Primer and topcoat should match.

The reason of ceiling cracking-temperature change causes cracking

Cracking caused by temperature change is generally not a big problem, only affecting the surface, and will not involve the safety of chandeliers.

Repair plan: It is recommended to stick a layer of kraft paper after the gap is not big, and then brush the top coat; If the gap is too big, it is best to cut out a gypsum board, polish it into a suitable shape, fill it in the gap, and then brush it with decorative coatings.