Maintenance funds can be used for roof waterproofing, and the top floor roof belongs to the community. Once the roof leaks, the owner can apply for maintenance funds. Residential special maintenance funds refer to funds earmarked for the maintenance, renewal and transformation of residential parts and facilities after the expiration of the warranty period. Water leakage on the top floor is its scope of use, and it will cost too much for the owner of the top floor to solve the water leakage.

How is the roof waterproof?

1, to ensure the quality of waterproof materials.

First of all, choose a good waterproof material for the roof. Waterproof materials must have a quality guarantee and be certified by the designated quality inspection department to ensure that the quality meets the national standards.

2, pay attention to the roof drainage slope

Before construction, it is also necessary to pay attention to the roof drainage slope, which is generally around 2% ~ 3%. If the slope is less than 2%, materials should be used to find the slope, and if the slope is greater than 3%, structures should be used to find the slope.

3. Make all the preparations.

Secondly, we should carefully check the roof construction drawings and master the detailed structure in the construction drawings to avoid problems after construction and affect the project quality.

Step 4 prepare materials

Roof waterproofing generally adopts coiled material, which should be carried out after the installation of masonry and pipes is completed.

5, pay attention to the flat seam

Joint treatment is the most critical part of waterproof engineering, and poor joints will cause roof leakage in the future. Therefore, when waterproof, the leveling layer must leave frame joints and be filled with sealing material to ensure no water leakage after construction.

Introduction of roofing waterproof materials

1, HG203 waterproof sealing coating

Hg-203 waterproof sealing coating is a commonly used roofing waterproof coating, which introduces advanced high-tech technology from the United States. And imported raw materials are used, which is a very environmentally friendly waterproof coating, non-toxic, odorless and flame retardant.

2, modified asphalt waterproof

Modified asphalt waterproof material can also be used for roof waterproofing, which is characterized by high temperature resistance and can be used in the temperature range of -25 to+100℃. It has high elasticity and fatigue resistance, so it plays a great role in roof waterproofing.

3. Elastic cement

Elastic cement, also known as polymer cement, takes polymer emulsion composed of acrylate as the main base material, which is characterized by good film-forming, strong impermeability and strong water resistance, and can be constructed even on wet base surface, with good waterproof effect.