Since the installation of discharge line pressure plate roof and wall panels are prefabricated structure, so put lines Before installation of the post-installation quality assurance role to play, Caigangyanmian board, can not be ignored. Pre-installation deal with the mounting surface of the discharge line has finished building measure, fail to meet the installation requirements of section propose changes. A record of the construction deviations and propose appropriate measures for the installation error. The same also applies wallboard installation method similar pay-off, in addition: should be calibrated by the verticality of its supporting surface, Henan Caigangyanmian mill to ensure the formation of a vertical plane of the wall. After the roof and wall panels installed accessories installed as a secondary response actinomycetes, Anyang Caigangyanmian boards to ensure that the level cornice lines, roof lines, window, door and corner lines of straightness and squareness. Ignore this step, only the visual and empirical methods, is not up to the quality requirements of the installation.