Jinda quality waterproofing membrane manufacturers introduced underground works What are the requirements of underground works refers to industrial and civil engineering, protection engineering, tunnels and subways building (structure) building materials, waterproof design, waterproof construction and maintenance management and other engineering entities technical artifacts. (A) the quality of underground works shall comply with the following requirements. 1. Completion of the waterproof layer do not have leaks and flooding phenomenon. 2. All materials must meet the quality standards and design requirements. 3. waterproof layer paving method and membrane lap construction shall comply with the provisions of the order process, lap width should comply with the requirements of Schedule 1, must take joint cement, accurate, rigorous, filling them with the edge of the seam sealing. Cover batten must be firmly bonded gap filling them tightly sealed. Membrane surface smooth, closed head firmly. Synthetic polymer waterproof coating shall not be less than the total thickness of 2mm, waterproof layer surface should be smooth and no wrinkles. The detailed structure practices must meet the design requirements. 5. Each should have someone check the completion of a process, especially the hidden works to achieve conformity, before the next step after the acceptance. 6. underground works construction is completed, should be finishing all the technical information and do archiving. On underground water quality requirements of the project on the introduction to this, and for more information on the underground waterproofing membrane, please call the company hotline.