Calcium silicate board why wet weather will appear scarred
Ceiling keel installation interval is too large: part of the keel of the mechanical properties did not meet the national standard indicators, the plate after the installation of a greater degree of deformation. Keel and plate when the connector is not staggered, it is difficult to avoid stress concentration. The whole plate is installed in different directions at the same time on the screw fixation, so that the sub-stress within the plate easy to crack.
Improper storage of the plate: the plate in the installation and construction of wet moisture, resulting in deformation, in the construction of natural dry conditions, resulting in contraction, cracks.
Wall junctions improperly handled: not in accordance with the requirements of the relevant nodes set construction, but in the calcium silicate board and the wall at the junction of the direct use of caulking putty full scraping, and some also use copper tape paste to strengthen, leaving no shrink space , Leading to cracking at the site.
Improper handling of deformation joints: in the deformation of calcium silicate board ceiling no seam, the whole piece of steel directly connected. Although some of the deformation of the seam, but the deformation of the practice is not right, only in the panel at the seam, and the keel is not broken, the deformation of the structure under the action, calcium silicate board is easy to crack.
