Roof waterproof and thermal insulation integrated coating and its construction method

Abstract

The invention discloses a roof waterproof and heat-insulating integrated coating and belongs to the field of buildings. The roof waterproof and heat-insulating integrated coating comprises polyurethane foam and polyurea. The roof waterproof and heat-insulating integrated coating is characterized in that the polyuea is evenly sprayed on the polyurethane foam, or the polyurethane foam is evenly sprayed on the polyuea. Due to the rapid curing reaction of the polyuea, construction of a coating with the thickness of 1.5 mm-2.0 mm in an area of 1000 m<2> can be completed within six hours, and the coating can come into use after two to three hours. Due to the fact that construction between every two adjacent layers can be achieved within several minutes or a dozen of minutes, once construction of a coating is completed, construction of a next coating can be conducted, the final construction heights of the coatings are not limited, the construction height of each coating is controlled between 0.4 mm and 0.6 mm generally, the coating can be matched with a bottom material in shape quite well, and the phenomena of hollowing and delamination which can occur easily when traditional waterproof coiled materials are paved are eliminated. The polyuea and polyurethane are good in cohesiveness and compatibility.

Description

technical field [0001] The invention belongs to the field of building roofs, and in particular relates to a roof waterproof and thermal insulation integrated coating and a construction method thereof. Background technique [0002] Generally, conventional roofing waterproof materials use asphalt, SBS, APP, etc. These waterproof materials will crack after aging in the sun; even if the waterproof material itself does not crack, it will break due to cracking of the concrete; Seams are also likely to cause water leakage. [0003] The insulation material is usually polystyrene foam board (EPS). Both waterproof materials and thermal insulation materials have single performance and complex construction procedures, while roof construction consists of concrete roof panels, insulation layers, leveling layers, waterproof layers, and protective layers from bottom to top. The advantage of this situation is that the insulation layer is under the waterproof layer, and the insulation layer...

AI Technical Summary

Problems solved by technology

The disadvantage is that on the leveling layer on the thermal insulation layer during the construction of the thermal insulation cushion, since the thermal insulation layer is mostly a plate-shaped material, the leveling layer constructed on it is prone to cracking, resulting in damage to the waterproof layer and leakage

In addition, there are many processes, and the upper part is self-heavy, which is not good for cost control and structural safety.

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