Waterproof construction may seem simple, but in order to truly achieve the best effect of waterproof materials, there are still some details that need special attention. Next, let’s discuss these details in detail.
The grassroots should be kept moist appropriately to avoid water accumulation
- Before construction, the base layer must be appropriately wetted, but there should be no visible water. If the base course is too dry, it will absorb the lotion component in the waterproof coating, resulting in pulverization, lack of strength, pinholes and other problems after the waterproof layer is dry and consolidated; If there is open water on the base course, the waterproof coating will be diluted, resulting in uneven distribution of lotion and affecting the waterproof effect. Therefore, the grassroots must be uniformly moist, but there should be no water accumulation.
Avoid one-time thick coating
2.If waterproof coating is applied too thick at once, the surface will dry and the internal coating will not be completely cured, and bubbles or even cracking may occur when water evaporates. Especially in the shaded area, it is more likely to cause the above-mentioned problems due to paint accumulation. So, multiple thin coatings are key.
Ensure that the first coat is dry before applying the second coat
The waterproof coating should follow the construction principle of “cross cross, thin coating multiple times”. Generally speaking, it is necessary to apply 2 to 3 coats of paint. Only when the first coat is completely dry and non sticky can the next coat be applied, otherwise it will damage the structure of the first layer, causing bubbles and cracking.
Wait for the waterproof layer to fully cure before conducting the closed water test
Conducting a closed water test before the waterproof layer is fully cured can damage the overall structure of the waterproof layer and may cause it to peel or detach. Therefore, the closed water test must be conducted after the waterproof layer is completely cured to ensure stable and reliable waterproof effect.
Detail nodes need to be strengthened in processing
The corners and pipe roots are weak points in waterproofing, which are prone to stress concentration and can cause cracking and water leakage. Using leak sealing materials for internal corner smoothing and adding waterproof additional layers can effectively seal the gaps in these critical positions and avoid leakage problems.
After construction, a waterproof protective layer should be added
If the waterproof coating is not protected after construction, it may be damaged during later cross construction, resulting in waterproof failure. Adding a protective layer can effectively protect the waterproof coating and maintain its good effect during long-term use.
The above are several important details in waterproofing construction. Paying attention to these key points can better ensure the quality and effectiveness of waterproofing projects.