According to years of experience,the paper analyzes the reasons of roof leakage by three aspects including construction team,building material and roof leak points,and proposals on the prophylactico-therapeutic measures are put foruard.

Building property management to prevent roof leakage;

The reasons of the roof leakage and some countermeasures;

Control measures for roof leakage;

The causes of roofing leakage in building engineering and its waterproof construction;

The causes of roofing leakage in southern pluvial region and its prevention and cure;

According to the engineering practice,the major problems of comprehensive treatment of roofing leakage are put forward to provide references.

Analysis on roofing seepage of waiting hall in one dirport and its control plan;

The paper analyses the causes of roofing seepage and proposes corresponding measures for avoiding seepage.