During construction, the construction environment temperature should not be lower than 5℃, and construction is strictly prohibited in rain, snow, fog, level 5 wind and above.
The base must be solid and flat, with no unevenness or serious cracks. When inspected with a 2M ruler, the gaps must not exceed 5MM. The depth of the pits must not exceed 3MM. All holes and cracks must be filled and smoothed with mortar. , after letting it sit for 3 to 4 hours, open the base part and the polyester cloth and there will be no watermarks on it.
The choice of base treatment agent should be compatible with the material properties of the polyester cloth, and the spray should be even. Based on the principle of "first bottom and then away, first far and then close", nodes and drainage should be done first. relatively concentrated parts.
Extended information:
Roof waterproofing construction must ensure its quality, and pay more attention to starting from each structural layer of the roof. No matter what kind of waterproof material, the base surface is strictly required to be clean and dry. , suitable conditions for construction temperature.
The strength of the concrete meets the design requirements, the grouting joints are dense, and the air-insulating layer is evenly painted with no visible bottom; the insulation layer is laid according to the design requirements, and the thickness and slope are accurately controlled to ensure smooth drainage;
Before the construction of the leveling layer, the elevation reference point should be marked and supervised and checked. The surface of the base layer should be compacted, flattened, calendered twice, and fully maintained. There should be no looseness or sanding; the connection part with the protruding roof structure , make the corners into arcs with a radius of 100mm~150mm, leave 20mm wide grid joints according to specifications, and fill them with flexible waterproof materials.