The construction method of the waterproof cover in the transition area of ​​ptfe membrane roof

Abstract

The invention relates to a PTFE (Polytetrafluoroethylene) film roof transitional region waterproof cover opening and a construction method thereof. The PTFE film roof transitional region waterproof cover opening is characterized by comprising a PTFE cover opening film, a film connecting plate, reinforcing ribs and a film cover opening supporting part, wherein the film connecting plate is vertically and fixedly arranged on a top surface of a roof beam; the plurality of reinforcing ribs are fixedly connected with two side surfaces of the film connecting plate; the film cover opening supporting part is arranged at the upper part of the film connecting plate; the PTFE cover opening film covers the top of the film cover opening supporting part; the construction method comprises the following steps of positioning a steel beam, welding the film connecting plate, welding the reinforcing ribs, mounting the film cover opening supporting part, laying a film cover opening, carrying out first-time thermal connection, and carrying out second-time thermal connection and third-time thermal connection. The PTFE film roof transitional region waterproof cover opening and the construction method, provided by the invention, have the advantages that a three-step laminated and thermal connection method is adopted, so that the thermal connection tightness can be effectively enhanced, the thermal connection strength is guaranteed, and cracking and falling of a connector under the action of dynamic load can also be avoided, and furthermore, water seepage hidden troubles are reduced; the construction and installation are simple and convenient, and cover opening film abrasion and seepage risks, caused by the fact that a PTFE film roof is suffered from a negative air pressure effect for a long period, can be effectively reduced, and the service life is greatly prolonged.

Description

technical field [0001] The invention belongs to the technical field of building roof engineering construction, in particular to a construction method for a waterproof cover in a transition area of ​​a PTFE membrane roof. Background technique [0002] PTFE membrane has been widely used as roof structure in modern building systems. The biggest feature of PTFE membrane is its high strength. The thickness of medium-strength PTFE membrane is only 0.8mm, but its tensile strength has reached the level of steel; and its elastic modulus Low temperature, which is conducive to the formation of complex curved surface modeling of the film; wide application temperature range, can be used in the temperature range of -70 ° C ~ 230 ° C; has unique optical properties, the incident light during the day becomes natural warm light to prevent glare, No shadows, the light is evenly distributed; almost no ultraviolet rays are transmitted, preventing the fading of interior decoration materials and e...

AI Technical Summary

Problems solved by technology

The joints of the roof of the above-mentioned membrane structure are hot-melt welding, medium paste, and pressure plate connection. The installation and construction are cumbersome, the forming effect is average, and the degree of matching with the overall shape needs to be improved.

Due to the simple treatment of the transitional area of ​​the roof of the membrane structure, there are hidden dangers of water accumulation, water leakage, and water seepage; and the roof membrane is a flexible material, and the cover membrane wears due to floating under the action of negative wind pressure, which requires high strength for the connection parts. Use is prone to quality hazards

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