Roof anti-seepage structure

By installing a sloping concrete protective layer and drainage system on the roof, combined with a waterproof coating and a flexible protective layer, the problem of poor drainage in traditional roof waterproofing structures is solved, achieving rapid and effective rainwater discharge and improved waterproofing.

CN223991522UActive Publication Date: 2026-03-13SHAANXI JIANGONG YICHENG CONSTRUCTION ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Traditional roof waterproofing structures have poor drainage, and rainwater tends to remain on the parapet wall and roof surface, reducing the waterproofing effect.

Method used

The system employs a combination of inclined concrete protective layers, drainage pipes, drainage holes, drainage channels, and water guide channels, along with waterproof coatings, waterproof membranes, and flexible protective layers, to form an effective drainage system that prevents rainwater leakage.

Benefits of technology

It improves the drainage efficiency of the roof, prevents rainwater leakage, extends the service life of waterproof materials, and enhances the waterproof performance of the roof.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223991522U_ABST
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Abstract

The utility model relates to the technical field of roof leakage prevention, in particular to a roof leakage prevention structure which comprises a roof body, and a concrete protection layer is arranged on the outer side wall of the roof body. The drainage mechanism is arranged on the outer side wall of the roof main body; the roof can be protected through the concrete protection layer, the two sides of the concrete protection layer are inclined, rainwater on the roof can be guided and drained, the drainage pipe in the concrete protection layer is matched with the drainage hole, the drainage effect of the concrete protection layer can be improved, water flow can be guided, and the situation that rainwater leaks from the roof is prevented; the problems that according to a traditional roof anti-seepage structure, the rainwater drainage effect of a roof is poor, rainwater easily stays on a parapet wall and the roof, rainwater cannot be conveniently and effectively drained, and the anti-seepage effect of the roof is reduced are solved.
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Description

Technical Field

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

[0002] The roof, as the core area of ​​a building's roof, encompasses the functional structure from the ridge to the eaves. It typically consists of a cast-in-place concrete floor, leveling layer, insulation layer, waterproofing layer, protective layer, drainage system, and parapet wall. Its core function is to prevent rainwater penetration, and the waterproofing structure directly affects the building's lifespan. In traditional designs, the rigid connection between the waterproofing layer and the parapet wall is prone to cracking due to thermal expansion and contraction, and design flaws in the drainage system (such as downpipe inlets being higher than the waterproofing layer surface) can easily lead to water accumulation and penetration, accelerating the aging of the waterproofing layer.

[0003] To address the aforementioned issues, a roof waterproofing structure for building construction is disclosed in utility model patent CN217734617U. This structure features a gap between the sidewall of the waterproofing layer and the inner wall of the parapet wall. A drainage ditch is constructed within this gap, allowing rainwater falling on the surface of the waterproofing layer to enter the drainage ditch and then drain out through a downpipe. This design differs from existing technologies where the bottom wall of the downpipe is higher than the surface of the waterproofing layer, reducing the probability of the waterproofing layer being soaked by rainwater and thus shortening its lifespan. However, this structure results in poor rainwater drainage on the roof, with rainwater tending to accumulate on the parapet wall and roof surface, hindering effective drainage and reducing the roof's waterproofing performance.

[0004] In view of this, the present invention proposes a roof waterproofing structure to solve the problems existing in the prior art. Utility Model Content

[0005] In view of this, the main purpose of this utility model is to provide a roof waterproofing structure to solve the problems of poor drainage effect of traditional roof waterproofing structures, rainwater tends to stay on the parapet wall and roof, making it inconvenient to effectively drain rainwater and reducing the waterproofing effect of the roof.

[0006] To achieve the above objectives, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A roof waterproofing structure, comprising:

[0008] The main body of the roof has a concrete protective layer on its outer side wall;

[0009] A drainage system, installed on the outer wall of the main roof structure, includes:

[0010] Several drainage pipes are evenly arranged and installed on both sides of the inner wall of the concrete protective layer;

[0011] Drainage holes are located on both sides of the top of the concrete protective layer and are connected to drainage pipes;

[0012] Drainage channels are set on both sides of the concrete protective layer and connected to drainage pipes.

[0013] In a preferred embodiment, both sides of the concrete protective layer are inclined.

[0014] In a preferred embodiment, the drainage mechanism further includes parapet walls disposed on both sides of the outer wall of the main roof structure. The parapet walls are disposed at the top of the concrete protective layer, and sealant is disposed on both sides of the outer wall of the concrete protective layer to match the parapet walls.

[0015] In a preferred embodiment, water guide channels are provided on both sides of the roof structure and the concrete protective layer, and the water guide channels are connected to the drainage channels.

[0016] In a preferred embodiment, two water guide channels are provided, both of which are connected to the drainage channel.

[0017] In a preferred embodiment, interceptor plates are provided on both sides of the concrete protective layer, and the interceptor plates are positioned above the drainage channel.

[0018] In a preferred embodiment, a waterproof coating is also provided between the roof structure and the concrete protective layer.

[0019] In a preferred embodiment, a waterproof membrane is provided at the top of the waterproof coating.

[0020] In a preferred embodiment, the top of the waterproof membrane is provided with a flexible protective layer.

[0021] In a preferred embodiment, the flexible protective layer is disposed below the concrete protective layer.

[0022] Compared with the prior art, this utility model provides a roof waterproofing structure with the following advantages:

[0023] 1. Through the installation of the drainage mechanism, the concrete protective layer at the top of the main roof structure can protect the roof and improve its strength. The two sides of the concrete protective layer are inclined to guide and discharge rainwater on the roof. The drainage pipes and drainage holes inside the concrete protective layer can improve the drainage effect of the concrete protective layer and guide the water flow. The two ends of the drainage channel are inclined and work with the water guide channel to discharge rainwater on the roof. The interception plate can filter impurities and prevent the drainage channel from being blocked. The parapet wall can be installed on both sides of the roof with sealant. The top of the parapet wall is arc-shaped to guide rainwater and reduce roof seepage. It can quickly and effectively drain the roof and prevent rainwater leakage.

[0024] 2. By using a waterproof coating, waterproof membrane, and flexible protective layer, the roof is coated with a polyurethane waterproof coating at the top, and then covered with a PVC waterproof membrane. This improves the roof's waterproofing effect and reduces water seepage. The flexible protective layer of extruded polystyrene board on the waterproof membrane provides thermal insulation, extends the service life of the waterproofing material, and enhances the roof's waterproofing performance. This solves the problem of poor rainwater drainage in traditional roof waterproofing structures, where rainwater tends to accumulate on the parapet walls and roof, hindering effective drainage and reducing the roof's impermeability. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the roof waterproofing structure of this utility model;

[0027] Figure 2 This is an exploded view of the parapet wall installation location of this utility model;

[0028] Figure 3 This is an exploded view of the roof waterproofing structure of this utility model;

[0029] Figure 4 This is a schematic diagram of the structure at the end of the concrete protective layer of this utility model;

[0030] Figure 5 This utility model Figure 2 A magnified view of a section at point A in the middle;

[0031] Figure 6 This utility model Figure 3 A magnified view of a section at point B in the middle.

[0032] [Explanation of Key Component Symbols]

[0033] 1. Roof structure; 2. Concrete protective layer; 3. Drainage system; 31. Drainage pipe; 32. Drainage hole; 33. Drainage channel; 34. Parapet wall; 35. Sealant; 36. Water guide channel; 37. Interception plate; 38. Waterproof coating; 39. Waterproof membrane; 310. Flexible protective layer. Detailed Implementation

[0034] The structure of this roof waterproofing structure will be further described in detail below with reference to the accompanying drawings and embodiments of this utility model.

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments as described in this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0037] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0038] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0039] The following is combined with Figures 1 to 6 This invention describes the structure of the roof waterproofing structure.

[0040] A roof waterproofing structure includes a roof body 1 and a drainage mechanism 3 for discharging rainwater from the roof and preventing rainwater leakage; wherein:

[0041] A concrete protective layer 2 is provided on the outer wall of the roof body 1. Both sides of the concrete protective layer 2 are inclined to guide rainwater into the drainage channels 33 on both sides.

[0042] The drainage mechanism 3 is installed on the outer wall of the roof body 1, including several drainage pipes 31 evenly arranged and installed on both sides of the inner wall of the concrete protective layer 2. Several evenly arranged drainage holes 32 are opened on both sides of the top of the concrete protective layer 2. The drainage holes 32 are connected to the drainage pipes 31. Drainage grooves 33 are opened on both sides of the concrete protective layer 2. One side of the drainage pipe 31 is connected to the drainage groove 33.

[0043] In the above description, the concrete protective layer 2 is inclined to guide rainwater, allowing it to fall and be collected in the drainage channels 33 on both sides. The drainage pipes 31 and drainage holes 32 are installed to guide and collect rainwater that seeps into and falls under the concrete protective layer 2, effectively preventing roof leakage.

[0044] In a preferred embodiment, such as Figure 2 , Figure 3 and Figure 5As shown, the drainage mechanism 3 also includes parapet walls 34 installed on both sides of the outer wall of the roof body 1. The parapet walls 34 are set at the top of the concrete protective layer 2, and sealant 35 is installed on both sides of the inner wall of the concrete protective layer 2. One side of the top of the parapet wall 34 is in contact with the sealant 35. In use, the sealant 35 can be used to achieve a sealing effect after the parapet wall 34 is assembled, so as to play a role in preventing roof leakage when it rains.

[0045] In a preferred embodiment, such as Figure 3 , Figure 4 and Figure 6 As shown, two water guide channels 36 are provided on both sides of the main roof 1 and the concrete protective layer 2. The water guide channels 36 are connected to the drainage channels 33. An interception plate 37 is installed on both sides of the concrete protective layer 2. The interception plate 37 is located above the drainage channels 33.

[0046] In the above description, when draining the roof, the inclined surface of the concrete protective layer 2 can guide the water flow, and then the rainwater is guided into the drainage channel 33 through the drainage hole 32 and the drainage pipe 31 inclined to one side. The drainage channel 33 then guides the rainwater into the water guide channel 36 through the inclined surfaces at both ends for discharge. The intercepting plate 37 intercepts impurities on the roof body 1 to prevent the drainage channel 33 from being blocked. The parapet wall 34 installed on both sides of the roof body 1 can prevent rainwater leakage and also prevent rainwater from washing to the wall base, which can effectively drain the roof and prevent rainwater leakage.

[0047] In a preferred embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, a waterproof coating 38 is provided between the main roof structure 1 and the concrete protective layer 2. A waterproof membrane 39 is provided at the top of the waterproof coating 38, and a flexible protective layer 310 is provided at the top of the waterproof membrane 39. The flexible protective layer 310 is located below the concrete protective layer 2. The waterproof coating 38 is applied to the main roof structure 1 and repeatedly applied 2-3 times to achieve a thickness of 1.5 mm to 2 mm to ensure the anti-leakage effect of the waterproof coating 38. The waterproof coating 38, in conjunction with the waterproof membrane 39, can improve the waterproof performance of the roof. The flexible protective layer 310 is laid on the waterproof membrane 39 for heat insulation. The concrete protective layer 2 is placed on the flexible protective layer 310, which can improve the waterproof effect of the roof.

[0048] During construction of the roof waterproofing structure described in this utility model: a waterproof coating 38 is applied to the roof body 1. After the waterproof coating 38 dries, a waterproof membrane 39 is laid on the waterproof coating 38, and a flexible protective layer 310 is laid on the waterproof membrane 39. The prepared concrete is poured onto the flexible protective layer 310, and then the prepared concrete protective layer 2 is placed on the concrete and installed on the roof. The parapet wall 34 is installed on both sides of the roof body 1 with sealant 35. When the roof is being drained, rainwater flows along the inclined surfaces on both sides of the concrete protective layer 2 into the drainage channel 33. The concrete protective layer 2, through the drainage holes 32 and the drainage pipes 31, can improve the drainage effect of the roof, allowing rainwater to flow into the drainage channel 33 and be discharged through the water guide channels 36 reserved on both sides of the roof body 1.

[0049] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A waterproofing structure for a roof, characterized by, The utility model relates to a roof main body (1), be provided with concrete protective layer (2) on the outer side wall of roof main body (1); Drainage mechanism (3) is arranged on the outer side wall of roof main body (1), and it includes: Several drain pipes (31) are evenly arranged and are arranged on the inner wall of concrete protective layer (2) both sides; Drainage hole (32) is arranged on the top of concrete protective layer (2) both sides, and is communicated with drain pipe (31); Drainage groove (33) is opened in concrete protective layer (2) both sides, and is communicated with drain pipe (31). Both sides of the concrete protective layer (2) are arranged in an inclined manner.

2. A waterproofing structure for a roof as claimed in claim 1, wherein The drainage mechanism (3) further includes a parapet wall (34) arranged on both sides of the outer wall of the roof main body (1), the parapet wall (34) is arranged at the top end of the concrete protective layer (2), and a sealing adhesive (35) is arranged on both sides of the outer wall of the concrete protective layer (2) to match the parapet wall (34).

3. A waterproofing structure for a roof as defined in claim 1, wherein Both sides of the roof main body (1) and the concrete protective layer (2) are provided with water guide grooves (36), and the water guide grooves (36) are communicated with the drainage grooves (33).

4. A waterproofing structure for a roof as defined in claim 1, wherein The water guide grooves (36) are arranged on both sides of the roof main body (1) and the concrete protective layer (2).

5. A waterproofing structure for a roof as defined in claim 4, wherein Both sides of the concrete protective layer (2) are provided with intercepting plates (37), and the intercepting plates (37) are arranged above the drainage grooves (33).

6. A waterproofing structure for a roof as defined in claim 1, wherein The roof main body (1) and the concrete protective layer (2) are further provided with a waterproof coating (38).

7. A waterproofing structure according to claim 1, wherein The top end of the waterproof coating (38) is provided with a waterproof roll material (39).

8. A waterproofing structure for a roof as defined in claim 7, wherein The top end of the waterproof roll material (39) is provided with a flexible protective layer (310).

9. A waterproofing structure according to claim 8, wherein The flexible protective layer (310) is arranged below the concrete protective layer (2).

10. A waterproofing structure for a roof as claimed in claim 9, wherein ​

Citation Information

Patent Citations

  • Roof anti-seepage structure for house building project

    CN217734617U