Polyurethane Rigid Foam Roof Waterproof and Insulation Technology

Abstract

The invention relates to a polyurethane rigid foam roof waterproof and thermal insulation process, which belongs to the technical field of roof thermal insulation, and comprises the following steps: S1: coating a waterproof coating film on the roof base; S2: spraying a polyurethane rigid foam raw material mixture on the waterproof coating film, Forming the first polyurethane rigid foam layer; S3: On the upper part of the first polyurethane rigid foam layer, and on both sides opposite to the roof, a water guide ditch body is placed, and a water guide groove is opened on the upper part of the water guide ditch body, and the water guide ditch body The part abutting against the side wall of the roof is relatively high, and the gutter body is connected with a drain pipe, which gradually slopes downward from the bottom of the gutter body and protrudes from the side wall of the roof; S4: Repeat S2 to form a second hard polyurethane Foam layer; S5: After the hard polyurethane foam is molded and hardened, an insulating layer is laid on the surface of the hard polyurethane foam layer, and then a fine stone reinforced concrete layer is laid. The present invention has the effect of improving the waterproof effect.

Description

technical field [0001] The invention relates to the technical field of roof heat preservation, in particular to a polyurethane rigid foam roof waterproof heat preservation process. Background technique [0002] At present, as building energy conservation is paid more and more attention, building insulation technology is popular in the market, and leakage and insulation of building roofs have always been a difficult problem in building construction. [0003] The existing Chinese patent whose publication number can be referred to is CN101831994B discloses a double-layer waterproof double-layer drainage structure and its construction method for thermal insulation roof. , bottom waterproof layer, thermal insulation layer, surface cement mortar leveling layer and surface waterproof layer, and two sets of waterproof and drainage systems are set on the upper and lower sides of the thermal insulation roof. There are multiple horizontal and vertical exhaust ditches on the cement mor...

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Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: most of the rainwater flows to the edge of the surface layer waterproof layer, and then gradually flows away from the roof drain pipe, and the edge of the opposite surface layer waterproof layer is soaked more, making it easier for rainwater to be waterproofed from the surface layer The edge of the layer penetrates into the roof, making the waterproof effect poor

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