Roof waterproofing is a very important project. If the waterproofing project is not done well, it will directly affect the service life of the entire house. Therefore, the roof waterproofing work should be done well. So what are the construction steps and waterproofing precautions for roof waterproofing ? Just take a look with Xiaobian!
Construction steps for roof waterproofing
1. Clean up the base layer, clean the dust and debris on the surface of the base layer before construction, and then use the hot-melt modified asphalt coiled material to make an additional layer in the water drop, pipe root, yin-yang angle and other details before the construction of the waterproof layer .
2. When laying the coiled material, first of all, the thickness of the coiled material should meet the requirements. Cut the waterproof coiled material to the corresponding size. Use a flame spray gun to heat the junction between the base layer and the coiled material. Roll forward and paste. The coiled material connected to the flat surface and the vertical surface shall be carried out from the bottom to the top.
3. Hot-melt edge banding, use a spray gun to heat the overlap of the coiled material to make it adhere firmly, and then apply the first waterproof coating. Before the waterproof construction, ensure that the ground is clean and dry. The waterproof coating must be fully coated to ensure that there is no omission. It must be firmly combined with the base layer without cracks and bubbles. The thickness of the waterproof coating must meet the requirements of the product.
4. Wait for the second pass of the waterproof coating after the first pass of the waterproof paint is completely dry. If the first pass of the waterproof paint is not completely dry, then the second pass of the waterproof construction will greatly reduce the waterproof effect.
5. Lay a protective layer. After the waterproofing work is completed, lay a protective layer on the surface to prevent the subsequent construction from damaging the waterproof layer. The protective layer should be completely covered with the waterproof layer so that there is no omission and it is firmly combined with the base layer. Bubbles and shedding phenomena occur.
6. Closed water test, the height of the water should not be less than 2cm during the closed water test, and then observe for more than 24 hours to see if there is any leakage, if it is not qualified.
Precautions for roof waterproofing
1. Waterproof work and insulation construction cannot be carried out in rainy weather.
2. The quality of the waterproof layer of the coil must meet the requirements, and the degree of drying must reach a certain standard.
3. The corners of the roof, the gutters and the joints of the coiled material, the water drop, and other node parts should be paved firmly and conform to the technical specifications of the roof waterproof engineering.
4. When the waterproof membrane is laid, the exhaust between the base layer and the membrane should be sufficient to avoid excessive tension and wrinkles.
5. The waterproof rolls should be paved straight, and the construction should be carried out strictly according to the elastic marking line of the base.
6. Be sure to protect the waterproof layer when laying the insulation layer.
Xiaobian Summary: The above is done on the roof waterproof roof construction steps and precautions to make the content of waterproof, waterproof roof work can not be ignored, we must pay attention to the above matters in the construction, we want to help.
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