Waterproof steel structure roof

Abstract

The utility model discloses a waterproof steel structure roof which comprises a top film, a pressing strip, an upper coiled material, a heat preservation plate, a vapor barrier layer, a lower coiled material, a PVC film layer, a contour plate and purlines, the top film is fixedly connected to the upper surface of the upper coiled material, the lower coiled material and the PVC film layer are arranged between the contour plate and the vapor barrier layer, the top of the lower coiled material is fixedly connected with the lower surface of the vapor barrier layer, and the purlines are fixedly connected with the top film. And a cavity is formed between the PVC film layer and the contour plate. The top film and the upper coiled material are fixedly connected to form a closed space, so that rainwater is effectively prevented from seeping into the insulation board; the vapor-proof layer is additionally arranged below the heat preservation plate, indoor vapor is effectively prevented from entering the heat preservation plate, the lower coiled material layer and the PVC film layer are additionally arranged below the vapor-proof layer, the vapor-proof effect is good, and the durability of the waterproof structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and particularly relates to a waterproof steel structure roof. Background Art

[0002] The roof is a load-bearing and enclosing component at the top of a building, generally composed of a roofing surface, a thermal insulation board and a load-bearing structure. The roof is also known as the "fifth elevation" of a building, which has a great influence on the shape and elevation image of the building. The form of the roof will directly affect the overall image of the building. Among them, there is a steel structure roof. The so-called steel structure roof is a roof formed by splicing steel plates together. However, in the existing steel structure waterproof roof, water leakage often occurs at the splicing points after splicing. Therefore, there is a particular need for a steel structure waterproof roof.

[0003] Chinese Patent with the authorization announcement number CN205000522U discloses a new type of waterproof steel structure roof, including steel beams, purlins, thermal insulation boards and profiled steel sheets used as roofing surfaces. Purlins are arranged on the steel beams, thermal insulation boards are arranged on the purlins, and mutually obliquely intersecting roofing profiled steel sheets are arranged on the thermal insulation boards. Flashing plates for sealing and waterproofing are arranged on the profiled steel sheets at the intersection of the two roofing surfaces. Flanging edges facing the profiled steel sheets are arranged at both ends of the flashing plates. A sealing rubber strip is arranged between the flashing plate and the profiled steel sheet. The flashing plate and the sealing rubber strip are fixedly connected by rivets. The lower end surface of the sealing rubber strip is connected to the profiled steel sheet through an adhesive. A water collecting trough is arranged on the sealing rubber strip. The water collecting trough is in contact with the profiled steel sheet through a water flow slope plate.

[0004] In the above related technology, there are the following technical defects: The flashing plate and the sealing rubber strip are fixedly connected by rivets, and rainwater is likely to penetrate into the thermal insulation board from the rivet connection, resulting in the thermal insulation board being easily damaged by moisture. In addition, a vapor barrier is not provided below the thermal insulation board, and indoor water vapor is likely to penetrate into the thermal insulation board, affecting the thermal insulation effect and easily causing the coil to bulge and deform. The durability of this waterproof structure is poor. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a waterproof steel structure roof.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A waterproof steel structure roof of the utility model includes a top film, a pressing strip, an upper coil, a thermal insulation board, a vapor barrier, a lower coil, a PVC film layer, a profiled steel sheet and a purlin. The edge of the top film is fixedly connected to the upper surface of the upper coil. A lower coil and a PVC film layer are fixedly connected between the profiled steel sheet and the vapor barrier. The middle part of the lower coil is recessed inward to wrap the PVC film layer inside. A cavity is formed between the PVC film layer and the profiled steel sheet.

[0008] As a preferred technical solution of the present utility model, the pressing strips are evenly distributed on the upper surface of the upper coil, and the body of the pressing strip is completely covered by the top film.

[0009] As a preferred technical solution of the present utility model, the pressing strips connect the upper coil, the thermal insulation board and the lower coil to the profiled sheet.

[0010] As a preferred technical solution of the present utility model, the edge of the lower coil is fixedly connected to the upper surface of the profiled sheet.

[0011] As a preferred technical solution of the present utility model, the materials of the upper coil and the lower coil are polyvinyl chloride.

[0012] As a preferred technical solution of the present utility model, the material of the vapor barrier layer is polyethylene.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. A sealed space is formed by the fixed connection between the top film and the upper coil, preventing rainwater from seeping into the thermal insulation board, and the maintenance is convenient and the cost is low;

[0015] 2. A vapor barrier layer is added below the thermal insulation board to prevent the water vapor in the room from entering the thermal insulation board, and the vapor barrier effect is good. The vapor barrier layer uses polyethylene material, which has good durability and airtightness;

[0016] 3. A cavity for accommodating water vapor is formed between the profiled sheet and the lower coil, further blocking the water vapor in the room from entering the thermal insulation board and improving the waterproof effect. In addition, the lower coil uses polyvinyl chloride material, which has good low-temperature flexibility and excellent aging resistance. Description of the Drawings

[0017] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0018] Figure 1 is the structural schematic diagram of the present utility model;

[0019] Figure 2 is the partial enlarged view A of the present utility model;

[0020] Figure 3 is the partial enlarged view B of the present utility model;

[0021] In the figure: 1. Top film; 2. Pressing strip; 3. Upper coil; 4. Thermal insulation board; 5. Vapor barrier layer; 6. Lower coil; 7. PVC film layer; 8. Profiled sheet; 9. Purlin. Detailed Embodiments

[0022] The preferred embodiments of the present utility model will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model.

[0023] Among them, the same reference numerals in the drawings all refer to the same components.

[0024] As Figures 1-3 shown, the present utility model provides a waterproof steel structure roof, which sequentially includes a top film 1, a pressing strip 2, an upper coiled material 3, a thermal insulation board 4, a vapor barrier layer 5, a lower coiled material 6, a PVC film layer 7, a profiled sheet 8 and a purlin 9 from top to bottom. The edge of the top film 1 is fixedly connected to the upper surface of the upper coiled material 3. Preferably, the top film 1 and the upper coiled material 3 are fixedly connected by hot air welding to form a sealed space, which has good airtightness and a good function of preventing rainwater from seeping in. The vapor barrier layer 5 for isolating water vapor is fixedly connected to the lower part of the thermal insulation board 4 by an adhesive. The lower coiled material 6 and the PVC film layer 7 are fixedly connected between the profiled sheet 8 and the vapor barrier layer 5. The middle part of the lower coiled material 6 is recessed inward to wrap the PVC film layer 7 inside. A cavity for accommodating water vapor is formed between the PVC film layer 7 and the profiled sheet 8, further blocking the indoor water vapor from entering the thermal insulation board. The profiled sheet 8 is fixedly connected to the purlin 9.

[0025] Furthermore, the pressing strips 2 are evenly distributed on the upper surface of the upper coiled material 3, and the body of the pressing strip 2 is completely wrapped by the top film 1, preventing rainwater from seeping into the thermal insulation board and facilitating maintenance.

[0026] Furthermore, the pressing strip 2 connects the upper coiled material 3, the thermal insulation board 4 and the lower coiled material 6 to the profiled sheet 8. Preferably, the entire waterproof structure is fixedly connected into a whole from top to bottom by a pressing strip fixing member. The upper end of the fixing member is on the pressing strip 2, and the lower end of the fixing member is in the cavity formed by the PVC film layer 7 and the profiled sheet 8, increasing the strength of the waterproof structure and preventing water vapor from penetrating into the thermal insulation board.

[0027] Furthermore, the edge of the lower coiled material 6 is fixedly connected to the upper surface of the profiled sheet 8. Preferably, the two are connected together by a waterproof adhesive to form a sealed whole at the edge, which has good plasticity and is suitable for detailed treatment.

[0028] Furthermore, the materials of the upper coiled material 3 and the lower coiled material 6 are polyvinyl chloride, which has excellent anti-aging performance and good low-temperature flexibility.

[0029] Furthermore, the material of the vapor barrier layer 5 is polyethylene, which has good durability and airtightness.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A waterproof steel structure roof, characterized in that: The invention comprises a top film (1), a pressure strip (2), an upper coil (3), an insulation board (4), a vapor barrier layer (5), a lower coil (6), a PVC film layer (7), a profiled plate (8) and a purlin (9), wherein the edge of the top film (1) is fixedly connected to the upper surface of the upper coil (3), the lower coil (6) and the PVC film layer (7) are fixedly connected between the profiled plate (8) and the vapor barrier layer (5), the middle part of the lower coil (6) is concave inwardly to cover the PVC film layer (7) on the inner side, and a cavity is formed between the PVC film layer (7) and the profiled plate (8).

2. A waterproof steel structure roof according to claim 1, characterized in that: The layering strips (2) are distributed at equal intervals on the upper surface of the upper coil (3), and the main body of the layering strips (2) is completely covered by the top film (1).

3. A waterproof steel structure roof according to claim 1, characterized in that: The pressure strip (2) connects the upper coil (3), the insulation board (4) and the lower coil (6) to the corrugated board (8).

4. A waterproof steel structure roof according to claim 1, characterized in that: The edge of the lower coil (6) is fixedly connected to the upper surface of the profiled plate (8).

5. A waterproof steel structure roof according to claim 1, characterized in that: The upper coil (3) and the lower coil (6) are made of polyvinyl chloride.

6. A waterproof steel structure roof according to claim 1, characterized in that: The material of the vapor barrier layer (5) is polyethylene.

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