Company News

In ceiling construction, when the distance on one side exceeds 12 meters, expansion joint treatment must be carried out. For double-layer gypsum board ceilings, it is necessary to reserve expansion joints of 10 to 20 millimeters, with a joint length controlled between 30 to 50 millimeters, while ensuring that the distance from the edge of the expansion joint to the hanging bar does not exceed 300 millimeters. If a single-layer gypsum board ceiling is used, it should be lined with particleboard (which needs to be fireproof treated) above and connected to the edge keel. A gap of 10 to 20 millimeters should also be reserved at the lower opening.
△ Ceiling expansion joint construction details
During the installation process of the ceiling, the surrounding areas are carefully designed with grooves (concave corner grooves) to ensure a smooth connection between the gypsum board and the wall. In order to further strengthen this connection, we have specially customized gypsum wire for finishing treatment, and reserved a 5mm gap at the finishing point for embedding the model gypsum, ensuring the stability and beauty of the ceiling.