How to do a good job in roofing waterproof construction steps

For friends who live on the top floor, roof leakage is the biggest problem. Every family wants a comfortable and dry environment. There are many hazards of roof leakage, which not only seriously affects the quality of walls, but also affects the living environment of families. So once there is roof leakage, it must be handled in time. At present, waterproof technology is advanced, and both materials and waterproof construction methods are mature. It is suggested to deal with the leaking roof in time.

Technical preparation before construction

Before the roof construction, the construction unit shall organize technical management personnel to jointly review the roof drawings, master the detailed structure and related technical requirements in the construction drawings, and prepare the roof construction scheme or technical measures according to the actual situation of the project. This can avoid the defects left after construction and cause rework. At the same time, the project will be carried out in a planned way according to the construction organization to prevent the omission, confusion and inversion of the work from affecting the project quality.

Base surface requirement

The surface of the base is clean, the moisture content is not more than 9%, it is smooth and dense, and the ends of each node are neat and complete, which meets the requirements.

work progress

Acceptance of leveling layer-cleaning base-preparing cement adhesive-making additional layer-base construction-protective layer-maintenance. Before the coiled material is laid and bonded, the roofing waterproof coiled material shall be pre-laid and aligned, then the two ends of the roofing waterproof coiled material shall be folded in half and rolled up, the prepared cement glue shall be poured into the base, leveled with a scraper, and then the roofing waterproof coiled material shall be pushed forward, and the residual air inside the roofing waterproof coiled material shall be eliminated with a scraper in time, and the excess glue shall be scraped off. The bonding rate between roofing waterproofing membrane and leveling layer is 85%.

Joint exercises between coils

The steam barrier, waterproof layer and additional layer are bonded by cement glue lap, and the width is 10cm. Additional seam and waterproof seam staggered more than 5cm. The lap width of roofing waterproofing membrane is 8- 10cm on the long side and 10- 15cm on the short side. Joints of adjacent short sides should be staggered by more than 100cm, and the included angle between the wall and the ground should be more than 30cm.

Waterproof protective layer

After the coil is laid, a 2cm thick 1: 2.5 cement mortar protective layer shall be applied on the waterproof layer, and plastering shall be done twice. The second layer of summer-planting must be staggered more than 20cm, and the protective layer should be leveled and watered for maintenance.

The quality of the roof is very important. For any building, roof leakage will seriously affect the quality of lower-level residential buildings, so it must be handled correctly. It is suggested that professional and experienced personnel should be found when looking for the construction team with leaking roof, so as to ensure the quality. At present, waterproof materials are various, and their service life and prices are also different. It is suggested that the most suitable one can be selected according to the actual situation, and it is best to pay attention to protection and make it waterproof for a long time.