Aiming at the leakage problem of exterior wall and roof in housing building construction,this paper discusses the main causes of leakage problem in housing building,and analyzes the anti-leakage construction technology and key technical points of key parts of the housing building in detail from the aspects of optimizing concrete mixture proportion,designing roof drainage system,filling construction joints,anti-leakage construction quality evaluation and later maintenance,aiming at providing a comprehensive and efficient anti-leakage solution for housing building and improving the construction quality of housing building engineering.
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