Method for preparing and constructing waterproof coating for steel structure roof

Abstract

The invention provides a method for preparing and constructing a waterproof coating for a steel structure roof, which includes: performing basic treatment on the roof of a light steel building to remove floating dust and oil stains on the roof surface, and the roof is spliced ​​by a plurality of plates Obtained: performing waterproof treatment on the leaky nodes of the roof; after the waterproof treatment is completed on the leaky nodes of the roof, spray rubber asphalt waterproof paint on the entire roof to form an overall seamless and continuous waterproof coating film.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a method for preparing and constructing a waterproof coating for steel structure roofs. Background technique [0002] The steel structure building system is widely used in various buildings due to its short construction period, high degree of prefabrication, flexible and diverse architectural and design styles, and the entire construction process is conducive to environmental protection. The steel structure is generally used as the internal skeleton, and there is a maintenance structure on the outside. The commonly used light steel maintenance materials are light plates, such as single-layer boards, double-layer boards, and composite boards. [0003] In the light steel building system, the places that may leak or seep, whether on the roof or the wall, are as follows: [0004] 1. The seams between the boards (walls and roofs) are due to the poor quality of the boards, or the po...

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Problems solved by technology

[0004] 1. The seams between the boards (walls and roofs) are due to the poor quality of the boards, or the poor joint between the boards during construction; there are also unreasonable board curling, or the use of cement , but the glue may not be dense and there are gaps; especially where the lighting board and the board overlap

[0005] 2. The ridge on the roof, the slope of the roof is small, the local wind and rain are strong, the ridge cover plate is not wide enough, the water retaining plate is not installed well, and some are not even installed with waterproof plugs; the plate protruding into the ridge is not rolled up; the cover The lap joints between the boards are not properly glued, which may cause roof leakage and water seepage

[0006] 3. The gutter in the roof is not deep enough or wide enough. When it encounters heavy wind and rain, its drainage speed is slow and the amount is too small, which will cause water to overflow and flow back into the building; some gutters are even blocked and cannot be drained. water

[0008] 5. Although there are not many nails on light steel roofs nowadays, if the nailing position is wrong, and the original nail holes are not blocked when the nails are re-drilled, water will leak

[0010] The existing common practice is to carry out roofing coils and conventional coatings, but both have different degrees of defects. First, whether the polymer coils are mechanically fixed or glued, there are lap joints, so there is a risk of water leakage In addition, there are many roof nodes and protrusions, and the coiled material is difficult to cover completely, resulting in frequent leaks, and the owner is miserable; in addition, although waterproof coatings on the market can be applied to special-shaped structures, they generally cure slowly , and it needs to be painted in several times, which wastes the construction period

The emergence of polyurea coatings has changed some of the status quo. However, due to the high price of polyurea, most of the semi-polyurea on the market has defective performance, poor flame retardancy, and strong brittleness. Therefore, it is also used in steel structure roofing. There is a bottleneck

[0011] Technologists are trying various efforts to improve the above shortcomings of the existing light steel building system, but there is still no suitable countermeasure so far. Therefore, this technical field is in urgent need of a new technology that can overcome the above problems or partially solve the above problems

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