An impermeable roofing structure

By setting up internal and external sloping surfaces and a combined drainage system on the building roof, the problems of rainwater accumulation and infiltration in the existing roof structure are solved, achieving effective rainwater drainage and corrosion prevention.

CN224452055UActive Publication Date: 2026-07-03ZHEJIANG ZHENGJIANG CONSTR ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG ZHENGJIANG CONSTR ENG CO LTD
Filing Date
2025-06-12
Publication Date
2026-07-03

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    Figure CN224452055U_ABST
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Abstract

The utility model discloses an anti -permeation roof structure, including roof main part and the parapet wall of roof main part upper end side fixed, roof main part includes concrete bottom layer and concrete top layer, and the waterproof board and the anticorrosive layer are sequentially equipped between concrete bottom layer and concrete top layer from top to bottom, the parapet wall upper end is fixed with square top board, the inside and outside two sides of square top board are respectively surrounded and are equipped with inner inclined plane and outer inclined plane, the sealing board is fixed in roof main part and parapet wall side, the both sides embedding of concrete top layer are equipped with half arc water pipe, be equipped with the flow guide layer on concrete top layer, both ends of flow guide layer all are equipped with inclined plane no.
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Description

Technical Field

[0001] This utility model relates to the field of building roof structure technology, and more specifically to a waterproof roof structure. Background Technology

[0002] The roof refers to the surface of a building's roof. The roof serves to protect the top of the building. However, long-term exposure to rainwater can cause the roof to corrode due to rainwater, oxygen, or various microorganisms, leading to damage and rendering it unusable.

[0003] The existing technology, disclosed in CN216865741U, describes a building anti-corrosion and seepage-resistant thermal insulation roof. The waterproofing board serves to prevent water from seeping into the concrete substructure during heavy rain, thus reducing corrosion. The second and third anti-corrosion boards further protect the underside of the concrete top layer, further minimizing corrosion. However, this roof structure has an inadequate drainage path. Rainwater is only channeled through drainage pipes on both sides, and after flowing along the inclined surfaces, it cannot all reach the pipe openings, resulting in water accumulation on both sides. Furthermore, the gap between the sealing board and the concrete top layer is exposed at the top, allowing rainwater to accumulate and seep in. Therefore, this application proposes a seepage-resistant roof structure. Summary of the Invention

[0004] The purpose of this utility model is to provide a waterproof roof structure with a complete drainage path, which prevents rainwater from accumulating and seeping into the inner side of the roof.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A waterproof roof structure includes a main roof structure and a parapet wall fixed to the upper side of the main roof structure. The main roof structure includes a concrete base layer and a concrete top layer. A waterproof membrane and an anti-corrosion layer are sequentially arranged between the concrete base layer and the concrete top layer from top to bottom. A square top plate is fixed to the upper part of the parapet wall. The inner and outer sides of the square top plate are respectively surrounded by an inner inclined surface and an outer inclined surface. A sealing plate is fixed to the main roof structure and the parapet wall side. The upper end of the sealing plate abuts against the lower end of the outer inclined surface. Semi-circular water pipes are embedded on both sides of the concrete top layer. A flow guiding layer is provided on the concrete top layer. Both ends of the flow guiding layer are provided with inclined surfaces II, which communicate with the semi-circular water pipes. A drain pipe is fixed to the outside of the sealing plate corresponding to the semi-circular water pipes. The drain pipe is connected to the semi-circular water pipes through an inclined connecting pipe I.

[0007] By adopting the above technical solution, this utility model has the following advantages:

[0008] The inner and outer inclined surfaces of the square roof panel of this utility model enable bidirectional drainage of rainwater. The upper end of the sealing plate abuts against the lower end of the outer inclined surface, preventing the gap between the sealing plate and the parapet wall and the main roof structure from being exposed, effectively preventing rainwater infiltration. The arrangement of the guide layer, semi-circular water pipe, inclined connecting pipe 1, and drainage pipe allows rainwater to flow through the guide layer to the semi-circular water pipe, then through the inclined connecting pipe 1, and finally through the drainage pipe, resulting in a complete drainage path and preventing rainwater accumulation.

[0009] Furthermore, the inner inclined surface and the outer inclined surface are higher on the side closer to the square top plate than on the side farther away.

[0010] By adopting the above technical solution, this utility model has the following advantages:

[0011] The design of this utility model, where the inner and outer inclined surfaces are positioned higher on the side closest to the square top plate than the far end, allows some rainwater to be discharged through the outer inclined surface and some rainwater to flow through the guide layer via the inner inclined surface for drainage.

[0012] Furthermore, the upper end of the sealing plate is provided with an inclined surface, which matches the corresponding outer inclined surface.

[0013] By adopting the above technical solution, this utility model has the following advantages:

[0014] The inclined surface of this utility model effectively prevents rainwater from seeping in through the gap between the sealing plate and the inclined surface, and further seals the gap between the sealing plate and the parapet wall and the main roof structure.

[0015] Furthermore, the semi-circular water pipe is provided with a V-shaped inclined surface, and the inclined connecting pipe is connected to the center of the V-shaped inclined surface.

[0016] By adopting the above technical solution, this utility model has the following advantages:

[0017] The V-shaped inclined surface of this utility model allows rainwater in the semi-circular water pipe to converge at the center and be discharged through the inclined connecting pipe, preventing rainwater from accumulating in the semi-circular water pipe.

[0018] Furthermore, the connection between the sealing plate and the parapet wall is filled with waterproof sealant.

[0019] By adopting the above technical solution, this utility model has the following advantages:

[0020] The waterproof sealant in this invention can further enhance the sealing strength of the gap at the connection between the sealing plate and the parapet wall. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the cross-sectional structure at the center of the front view of this utility model;

[0023] Figure 2 This is a schematic diagram of the cross-sectional structure of the semi-arc water pipe at the center of the right view.

[0024] Figure 3 This is a schematic diagram of the square top plate structure of this utility model.

[0025] Attached reference numerals: 1. Concrete base layer; 2. Concrete top layer; 3. Diversion layer; 301. Inclined surface two; 4. Waterproof membrane; 5. Square top slab; 501. Outer inclined surface; 502. Inner inclined surface; 6. Sealing plate; 601. Inclined surface one; 7. Semi-circular water pipe; 701. V-shaped inclined surface; 8. Inclined connecting pipe one; 9. Drainage pipe; 10. Parapet wall; 11. Anti-corrosion layer. Detailed Implementation

[0026] like Figure 1 and Figure 3 As shown in this specific embodiment, a waterproof roof structure includes a roof body and a parapet wall 10 fixed to the upper side of the roof body. The roof body includes a concrete base layer 1 and a concrete top layer 2. A waterproof membrane 4 and an anti-corrosion layer 11 are arranged sequentially from top to bottom between the concrete base layer 1 and the concrete top layer 2. A square top plate 5 is fixed to the upper end of the parapet wall 10. An inner inclined surface 502 and an outer inclined surface 501 are respectively arranged around the inner and outer sides of the square top plate 5. A sealing plate 6 is fixed to the roof body and the side of the parapet wall 10. The upper end of the sealing plate 6 abuts against the lower end of the outer inclined surface 501. Semi-arc water pipes 7 are embedded on both sides of the concrete top layer 2. A flow guiding layer 3 is provided on the concrete top layer 2. An inclined surface 301 is provided at both ends of the flow guiding layer 3. The inclined surface 301 communicates with the semi-arc water pipes 7. A drain pipe 9 is fixed to the outside of the sealing plate 6 corresponding to the semi-arc water pipes 7. The drain pipe 9 is connected to the semi-arc water pipes 7 through an inclined connecting pipe 8.

[0027] Through the above configuration, the inner inclined surface 502 and outer inclined surface 501 of the square top plate 5 of this utility model can achieve bidirectional diversion of rainwater; the upper end of the sealing plate 6 of this utility model abuts against the lower end of the outer inclined surface 501, which can prevent the gap between the sealing plate 6 and the parapet wall 10 and the main roof from being exposed, effectively preventing rainwater from seeping in; the configuration of the flow guiding layer 3, the semi-circular water pipe 7, the inclined connecting pipe 8 and the drainage pipe 9 of this utility model allows rainwater to flow through the flow guiding layer 3 to the semi-circular water pipe 7, and then through the inclined connecting pipe 8 and finally through the drainage pipe 9, with a perfect drainage path, so that rainwater will not accumulate.

[0028] like Figures 1 to 3As shown, the inner inclined surface 502 and the outer inclined surface 501 are higher than the far end on the side near the square top plate 5; the upper end of the sealing plate 6 is provided with an inclined surface 601, which matches the corresponding outer inclined surface 501; the semi-circular water pipe 7 is provided with a V-shaped inclined surface 701, and the inclined connecting pipe 8 is connected to the center of the V-shaped inclined surface 701; the connection between the sealing plate 6 and the parapet wall 10 is filled with waterproof sealant.

[0029] With the above configuration, the inner inclined surface 502 and the outer inclined surface 501 of this utility model are positioned so that the side closer to the square top plate 5 is higher than the side furthest away. This allows some rainwater to be discharged through the outer inclined surface 501, while some rainwater can flow through the inner inclined surface 502 to the guide layer 3 for drainage. The inclined surface 601 of this utility model effectively prevents rainwater from seeping in through the gap between the sealing plate 6 and the inclined surface 601, further sealing the gap between the sealing plate 6 and the parapet wall 10 and the main roof structure. The V-shaped inclined surface 701 of this utility model allows rainwater in the semi-circular water pipe 7 to converge at the center and be discharged through the inclined connecting pipe 8, preventing rainwater from accumulating in the semi-circular water pipe 7. The waterproof sealant of this utility model further strengthens the sealing strength of the gap at the connection between the sealing plate 6 and the parapet wall 10.

[0030] Working principle: Rainwater can be diverted through the square roof plate 5. Some rainwater flows directly to the outside of the building through the outer inclined surface 501. Since the upper end of the sealing plate 6 abuts against the lower end of the outer inclined surface 501, rainwater is effectively prevented from contacting the gaps at the upper end of the sealing plate 6. Some rainwater flows into the inner side of the roof through the inner inclined surface 502 and falls directly into the surface of the diversion layer 3. Rainwater that does not fall on the square roof plate 5 can fall directly into the surface of the diversion layer 3. The rainwater flows on the surface of the diversion layer 3 and merges into the semi-circular water pipes 7 on both sides along the inclined surface 501. After entering the semi-circular water pipes 7, the rainwater can flow along the internal V-shaped... The inclined surface 701 converges towards the center and finally drains into the drainage pipe 9 through the inclined connecting pipe 8 and out of the roof. This utility model also has a protective structure. The inner waterproof plate 4 can form a barrier to prevent rainwater from seeping in and damaging the concrete base layer 1 after long-term use. The anti-corrosion layer is an asphalt-based anti-corrosion coating with good flexibility, which can resist the cracking of concrete due to thermal expansion and contraction, and effectively play a role in corrosion prevention. The materials of the semi-arc water pipe 7, inclined connecting pipe 8, drainage pipe 9, waterproof plate 4, and protective layer, as well as their installation and construction methods, are all disclosed in the prior art. Therefore, this application will not elaborate further.

[0031] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A water-repellent roofing structure comprising a roofing body and a parapet wall (10) fixed to a side edge of an upper end of the roofing body, characterized in that, The roof structure includes a concrete base layer (1) and a concrete top layer (2). A waterproof membrane (4) and an anti-corrosion layer (11) are sequentially arranged between the concrete base layer (1) and the concrete top layer (2) from top to bottom. A square top plate (5) is fixedly installed at the upper end of the parapet wall (10). The square top plate (5) has an inner inclined surface (502) and an outer inclined surface (501) surrounding its inner and outer sides, respectively. A sealing plate (6) is fixed to the roof structure and the side of the parapet wall (10). The upper end of the sealing plate (6) is connected to the outer side of the parapet wall (10). The lower ends of the inclined surfaces (501) abut each other. Semi-arc water pipes (7) are embedded on both sides of the concrete top layer (2). A flow guide layer (3) is provided on the concrete top layer (2). Inclined surfaces (2) (301) are provided at both ends of the flow guide layer (3). The inclined surfaces (2) (301) are connected to the semi-arc water pipes (7). A drain pipe (9) is fixed outside the sealing plate (6) corresponding to the semi-arc water pipes (7). The drain pipe (9) is connected to the semi-arc water pipes (7) through an inclined connecting pipe (8).

2. A drainage roofing structure according to claim 1, wherein The inner inclined surface (502) and the outer inclined surface (501) are higher than the far end on the side near the square top plate (5).

3. A drainage roofing structure according to claim 2, wherein The upper end of the sealing plate (6) is provided with an inclined surface (601), which matches the corresponding outer inclined surface (501).

4. A drainage roofing structure according to claim 1, wherein The semi-circular water pipe (7) has a V-shaped inclined surface (701) inside, and the inclined connecting pipe (8) is connected to the center of the V-shaped inclined surface (701).

5. The waterproof roof structure according to claim 1, characterized in that, The connection between the sealing plate (6) and the parapet wall (10) is filled with waterproof sealant.