How to waterproof the exterior wall? External wall waterproof construction technology
When building a building, it is very important to waterproof the exterior wall of the building. Do not neglect this, then how to waterproof the external wall? The following decoration home decoration network Xiaobian will bring you the exterior wall waterproof construction technology and related precautions, I hope to be helpful to everyone. External wall waterproof construction process: 1. Clean the base layer. The new and old surface layers must be cleaned up. No debris or dust should be allowed to avoid affecting the bond strength. The base layer should be dry when applying waterproof coating. Generally, it can be observed by experience and by the naked eye. It can also be covered with a 1m square cloth, and it can be exposed to sunlight for 1-3 hours. 2. After the completion of the grassroots cleaning process, the next step is to clean up the dead corners, which are so-called yin and yang angles, construction joints, expansion joints and other important parts for treatment. In particular, the drain holes should be strengthened and need to be painted 2- 3 times waterproof primer; 3. The coatings for waterproofing membranes, waterproof coatings, base coatings and bonding coils must be separated. In order to improve the adhesion between the waterproofing membrane and the base layer, the primers can be repeatedly painted, evenly coated and completely covered. Infiltrated into the concrete base layer to improve the bond strength and shear strength; 4, waterproof coatings must be proportioned according to the product instructions, according to the ratio of A: B = 2: 1; 5. Stirring time is about 3~5 minutes, and stir until the mixed liquid of the two parts of A and B is even; 6. The water-repellent coating with uniform mixing should be painted according to the area to be painted on the spot. The base layer should be painted more than the area of ​​the sticky coil, not more than 30 minutes; 7. Before painting the second coating, you must wait until the first coating is completely solidified before you can paint again. After the first coating is finished for about 4-8 hours, you can paint again for the second time and the second time. Three times of primer, the first coating thickness is 0.5mm, the second coating thickness is about 0.5mm, and the third coating thickness is about 0.5mm; 8. When bonding the coil, wait until the second coating is completely solidified before construction. Precautions for waterproofing of external walls: 1. Do not apply below 5 °C and in the rain, and do not work in wet or unventilated environment, which will affect film formation. 2. After the construction, all parts of the project should be carefully inspected, especially the weak links, which should be promptly checked and repaired in time. The above is how the exterior wall waterproofing brought to you by Xiaobian is how to construct it? The whole content of the exterior wall waterproof construction process, I believe that everyone has a basic understanding of the exterior wall waterproofing after reading this article, if you want to know more about the decoration consultation, please click to enter the decoration knowledge channel! More related reading: How to waterproof the exterior wall? External wall waterproof construction technology How to choose waterproof coating? According to different location selection methods Bathroom wall waterproofing practices and precautions Ningbo Wason Lighting Technology Co.,Ltd , https://www.wasonlight.com
