Steel structure roof waterproof and heat preservation structure and construction method

Abstract

This invention relates to a waterproof and thermal insulation structure and construction method for steel structure roofs. The construction method includes: installing purlins on steel beams; installing concave fixed steel profiles on the steel beams according to the dimensions of the composite profiled sheet; laying and fixing wire mesh on the purlins; laying PE film on the wire mesh, and using fasteners to overlap and fix the longitudinal joints of the PE film into the grooves of the concave fixed steel profiles; installing aluminum foil-faced glass wool on the PE film, and using fasteners to overlap and fix the longitudinal joints of the aluminum foil-faced glass wool to the fasteners; installing a composite profiled sheet on the aluminum foil-faced glass wool, and overlapping and fixing the longitudinal joints of the composite profiled sheet to the concave fixed steel profiles. This invention provides a method for multiple layers of protection for steel structure roofs, ensuring the waterproof and thermal insulation effects of the steel structure roof.

Description

Technical Field

[0001] This invention relates to the field of building engineering, specifically to a steel structure roof waterproofing and insulation structure and its construction method. Background Technology

[0002] In steel structure construction, traditional roofing methods often result in partial or localized leaks in most roofs due to external environmental factors such as rainy seasons and extremely cold weather. Locating these leaks is difficult and severely impacts usability. Therefore, improving existing steel structure roofing construction methods is a prerequisite for ensuring the comfort, energy efficiency, and safety of steel structures. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a waterproof and thermal insulation structure for steel structure roofs and a construction method thereof. The method provided by this invention offers multiple layers of protection for steel structure roofs, ensuring effective waterproofing and thermal insulation with significant and reliable results.

[0004] The specific technical solution is as follows: The first aspect of the present invention is to provide a construction method for a waterproof and thermally insulated steel roof structure, comprising: Install purlins on the steel beams; Install concave fixed steel profiles on the steel beams according to the dimensions of the composite profiled sheet; Lay and fix the wire mesh on the purlin; then lay PE film on the wire mesh, and use fasteners to overlap and fix the longitudinal joints of the PE film in the groove of the concave fixed steel. Install aluminum foil-faced glass wool on PE film, and use fasteners to overlap and fix the longitudinal joints of the aluminum foil-faced glass wool to the fasteners; A composite profiled sheet is installed on the aluminum foil-faced glass wool, and the longitudinal joints of the composite profiled sheet are overlapped and fixed to the concave fixed steel.

[0005] Furthermore, the purlins are galvanized cold-formed steel purlins, which are welded to the steel beams.

[0006] Furthermore, the concave fixed steel section is a galvanized concave fixed steel section, which is welded to the steel beam.

[0007] Furthermore, the wire mesh is made of stainless steel and is welded to the steel beam.

[0008] Furthermore, the fasteners are hollow steel sections, and the longitudinal joints of the PE film are fixed in the grooves of the concave fixing steel sections through the hollow steel sections.

[0009] Furthermore, the hollow steel section is a galvanized hollow steel section.

[0010] Furthermore, the longitudinal overlap of the aluminum foil-faced glass wool is tightly overlapped with the galvanized hollow steel profile.

[0011] Furthermore, the longitudinal lap joint of the composite profiled sheet overlaps with the arc surface of the hollow steel, and the longitudinal lap joint of the composite profiled sheet is tightly fixed to the hollow steel with self-drilling screws.

[0012] Furthermore, the composite profiled sheet is a thermoplastic polyolefin roll metal composite profiled sheet.

[0013] A second aspect of the present invention is to provide a waterproof and thermally insulated steel roof structure.

[0014] The beneficial effects of the above scheme are: The method provided by this invention can provide multiple layers of protection for steel structure roofs, ensuring the waterproofing and thermal insulation effects of steel structure roofs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the waterproof and heat-insulating structure provided in an embodiment of the present invention; Figure 2 This is a detailed diagram of the overlapping treatment of various structures on the roof in an embodiment of the present invention; Figure 3 This is a schematic diagram of the hollow steel structure in an embodiment of the present invention.

[0016] In the attached diagram: 1. Steel beam; 2. Purlin; 3. Concave fixed steel profile; 4. Wire mesh; 5. PE film; 6. Aluminum foil-faced glass wool; 7. Composite profiled sheet; 8. Hollow steel profile; 9. Self-drilling screw; 10. Top; 11. Hollow insulation cavity; 12. Water diversion channel. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0020] like Figures 1 to 3 As shown, the construction method for a steel structure roof waterproofing and thermal insulation structure provided in the embodiments of the present invention includes: Galvanized cold-formed steel purlins 2 are welded onto steel beam 1; According to the dimensions of the thermoplastic polyolefin coil metal composite profiled sheet 7, a concave fixed steel 3 is welded between the galvanized cold-formed steel purlins 2 on the steel beam 1; Stainless steel wire mesh 4 is laid and welded on galvanized cold-formed steel 2 to support and fix the PE film; then PE film 5 is laid on stainless steel wire mesh 4 (to prevent indoor moisture from entering the roof structure layer and to provide secondary protection against outdoor moisture from entering the room), the longitudinal joints of PE film 5 are overlapped in concave fixed steel 3, and then galvanized hollow steel 8 is used to fix the longitudinal joints of PE film 5 in the groove of concave fixed steel 3 to prevent leakage; Install aluminum foil-faced glass wool 6 on PE film 5 (mainly for heat insulation, while the aluminum foil-faced glass wool reduces heat conduction and waterproofing, improving the energy-saving effect of the steel structure). Tightly overlap and fix the longitudinal joints of the aluminum foil-faced glass wool 6 to galvanized hollow steel 8. A thermoplastic polyolefin roll metal composite profiled sheet 7 (which plays a certain role in the insulation of the steel structure roof) is installed on the aluminum foil-faced glass wool 6. The longitudinal joint of the thermoplastic polyolefin roll metal composite profiled sheet 7 is overlapped on the arc surface of the galvanized hollow steel 8. Then, the longitudinal joint of the thermoplastic polyolefin roll metal composite profiled sheet 7 is fixed to the galvanized hollow steel 8 using self-drilling screws 9.

[0021] In this invention, the aluminum foil-faced glass wool 6 and the thermoplastic polyolefin roll-metal composite profiled sheet 7 constitute an insulation system; the PE film 5 and the thermoplastic polyolefin roll-metal composite profiled sheet 7 constitute a waterproof and moisture-proof system. In the above system, the thermoplastic polyolefin roll-metal composite profiled sheet 7 is laid on the top layer of the roof, directly in contact with the environment. The overlap is directly fixed to the galvanized hollow steel 8 with self-drilling screws 9, so that the top and bottom layers of the roof form an effective closed space, effectively isolating indoor moisture and environmental rainwater from entering the roof.

[0022] In this invention, the top 10 of the galvanized hollow steel section 8 is arc-shaped, serving as a support surface for the longitudinal overlapping and fixing of the thermoplastic polyolefin coil metal composite profiled sheet 7, while also collecting and draining minor water seepage. The galvanized hollow steel section 8 has a hollow insulation cavity 11, which, together with the outer aluminum foil-faced glass wool 6, provides thermal insulation. Simultaneously, the hollow insulation cavity 11 contains a drainage channel 12 to collect and drain small amounts of seepage at the drill screw installation location, ensuring seepage prevention and preventing water accumulation and corrosion within the steel section. Fixed pressure plates 1 are installed on both side walls of the galvanized hollow steel section 8. 3. A rubber strip 14 is installed. The rubber strip 14 is mainly to prevent damage to the PE film 5 during reinforcement. At the same time, it forms a rough friction surface with the PE film 5 to enhance the reinforcement effect. The fixing plate 13 can reinforce the overlap of the PE film 5. At the same time, the corner can timely guide and drain the water seepage at the overlap of the waterproof layer. The fixing plate can also fix the outer aluminum foil-faced glass wool 6 on the side close to the galvanized hollow steel 8. At the same time, the fixing plate 13 is a certain distance from the fixing plate 15 below, so that the PE film 5 can move appropriately within a certain range to prevent damage to the film due to thermal expansion and contraction.

[0023] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A construction method for waterproof and thermally insulated steel roof structures, characterized in that, include: Install purlins on the steel beams; Install concave fixed steel profiles on the steel beams according to the dimensions of the composite profiled sheet; The wire mesh is laid and fixed on the purlins; Then, a PE film is laid on the wire mesh, and the longitudinal joints of the PE film are overlapped and fixed in the groove of the concave fixed steel using fasteners. An aluminum foil-faced glass wool is installed on the PE film, and the longitudinal joints of the aluminum foil-faced glass wool are overlapped and fixed to the fasteners. A composite profiled plate is installed on the aluminum foil-faced glass wool, and the longitudinal joints of the composite profiled plate are overlapped and fixed to the fasteners.

2. The construction method for a steel structure roof waterproofing and thermal insulation structure according to claim 1, characterized in that, The purlin is a galvanized cold-formed steel purlin, which is welded to the steel beam.

3. The construction method for a steel structure roof waterproofing and thermal insulation structure according to claim 1, characterized in that, The concave fixed steel section is a galvanized concave fixed steel section, and the concave fixed steel section is welded to the steel beam.

4. The construction method for a steel structure roof waterproofing and thermal insulation structure according to claim 1, characterized in that, The wire mesh is made of stainless steel and is welded to the steel beam.

5. The construction method for a steel structure roof waterproofing and thermal insulation structure according to claim 1, characterized in that, The fastener is a hollow steel section, and the longitudinal joint of the PE film is fixed in the groove of the concave fixing steel section through the hollow steel section.

6. The construction method for a steel structure roof waterproofing and thermal insulation structure according to claim 5, characterized in that, The hollow steel section is a galvanized hollow steel section.

7. The construction method for a steel structure roof waterproofing and thermal insulation structure according to claim 5, characterized in that, The longitudinal overlap of the aluminum foil-faced glass wool is tightly overlapped with the galvanized hollow steel.

8. The construction method for a steel structure roof waterproofing and thermal insulation structure according to claim 5, characterized in that, The longitudinal lap joint of the composite profiled sheet overlaps with the arc surface of the hollow steel, and the longitudinal lap joint of the composite profiled sheet is tightly fixed to the hollow steel with self-drilling screws.

9. The construction method for a steel structure roof waterproofing and thermal insulation structure according to claim 8, characterized in that, The composite profiled sheet is a thermoplastic polyolefin roll metal composite profiled sheet.

10. A steel structure roof waterproofing and thermal insulation structure, characterized in that, Obtained by construction method according to any one of claims 1-9.

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