Why do balconies need to be waterproof?
Because exposed to the external environment, sunshine and rain, concrete is prone to cracks. At the same time, many owners also regard the balcony as a laundry site, which needs regular drainage. In order to prevent water leakage, waterproofing treatment is usually required.
Key parts of waterproofing
According to the structural characteristics of the balcony, the key parts of waterproofing are:
1. Waterproof of large surface of concrete structure，including ground and wall.
2. The position of each pipe orifice;
3. Gaps in the interface between the ground and the wall.
Waterproof treatment scheme
According to the analysis of the key parts of the balcony waterproofing, the waterproofing treatment is carried out.
1. Waterproof of large surface for the balcony
According to the local climate conditions and the site conditions of tile laying on the wall and floor, JS polymer cement-based waterproofing paint or polyurethane waterproofing paint should be properly selected for large-scale waterproofing treatment; balcony plane construction must turn around the wall (or fence) about 300 mm, and do a good job of sealing treatment.
2. The position of each orifice
Flexible and strong bonding polyurethane sealants are used for sealing treatment.
3. The junction of ground and wall
Cracks are easy to occur in the junction area, so waterproof reinforcement layer treatment is needed.
During construction, if waterproof foundation treatment has been done, the original waterproof layer should not be destroyed during secondary waterproofing.
Waterproofing materials must conform to the relevant national standards, and have the corresponding test reports, factory certificates and other information.
Professional construction schemes must be adopted during construction.
After the completion of the construction, the protection shall be carried out according to the requirements, and the waterproof and water closure test shall be carried out. The construction of the next working procedure shall be carried out only after the acceptance is qualified.