How to completely solve the problem of water leakage on the top floor

The selection of base treatment agent should be compatible with the material properties of polyester cloth, and the spraying should be uniform.

During the construction of polyester cloth, the construction environment temperature shall not be lower than 5℃, and it is strictly prohibited to construct under the conditions of rain, snow, fog, and wind of level 5 or above. The base must be solid and smooth, and there must be no unevenness or serious cracks. When inspected with 2M feet, the clearance shall not exceed 5mm, and the pit depth shall not exceed 3mm. All holes and cracks should be filled with mortar.

After standing for 3-4 hours, uncover the base layer and the polyester cloth without watermark. Before polyester cloth is laid, the base should be cleaned without floating ash. The selection of base treatment agent should be compatible with the material properties of polyester cloth, and the spraying should be uniform. Based on the principle of "bottom first, then division, first far and then near", make nodes and parts with concentrated drainage first. The paved polyester cloth should be straight, the lap size should be accurate and not distorted. The lap joint of polyester cloth shall be subject to the overflow of hot-melt modified asphalt, and then the joint shall be scraped.

Extended data:

The relevant requirements of roof waterproofing project stipulate that:

1. In order to establish the idea of "prevention first, active control" in enterprises, we always insist on scientific management according to procedures, specifications and contracts; Take the principle of "combining strict supervision with enthusiastic service" and actively coordinate and handle the relationship between supervision and all parties. So as to ensure the construction of roof waterproofing project, and gradually move towards scientific and standardized.

2. Separate waterproof engineering from civil engineering, undertake independent system contracting, and carry out secondary (detailed) design of waterproof engineering according to local conditions under the overall design principle, so as to ensure the quality of waterproof engineering.

3. Strictly check whether all technical data meet the standard requirements, attach importance to the collection of construction technical data, and make supervision logs, site records and acceptance records of concealed works. If the technical data is not perfect and the construction quality does not meet the standard requirements, the next working procedure shall not be carried out, and the method of setting an example shall be adopted to further improve the construction organization design (scheme) and achieve effective control.

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