Waterproof structure of building flat roof
By using bentonite material in combination with other layers on the building roof, the problem of water seepage caused by the inability of waterproof membrane to bond tightly was solved, achieving a long-lasting waterproof effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN YILONG LANDSCAPE DECORATION ENG CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-15
AI Technical Summary
Existing roof waterproofing membranes cannot bond tightly to the substrate, leading to water seepage and indoor leaks.
Bentonite is used as the waterproof layer, combined with a waterproof structure consisting of a cement perlite slope layer, a polystyrene board insulation layer, and a fiberglass grid, to achieve an overall waterproof effect.
It achieves a tight bond between the waterproof material and the roof structure, completely solving the problem of roof leakage, and the waterproof lifespan can reach several hundred years.
Smart Images
Figure CN224244253U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building waterproofing technology, and in particular to a waterproofing structure for a flat roof. Background Technology
[0002] Currently, most building roofs use waterproof membrane rolls for waterproofing. However, this method cannot bond tightly to the substrate, easily leading to roof seepage and indoor leaks. According to a 2013 survey by the Waterproofing Society, over 80% of building roofs are leaking, seriously affecting people's lives.
[0003] In view of the problems existing in the above-mentioned existing technologies, it is necessary to study and design a new type of waterproof structure for flat roofs of buildings, so as to overcome the problems existing in the existing technologies. Summary of the Invention
[0004] The existing technology for roof waterproofing using waterproof membranes suffers from the problem that these membranes cannot bond tightly to the roof substrate, easily leading to roof seepage and indoor leaks. This invention addresses this issue by providing a waterproofing structure for flat roofs. This utility model primarily utilizes a bentonite roof waterproofing structure to achieve the waterproofing function of the bentonite material, realizing the overall waterproofing effect of the material and structure, thereby achieving a permanent waterproofing effect on the building roof.
[0005] The technical means adopted in this utility model are as follows:
[0006] A waterproof structure for a flat roof of a building, including a roof structure top slab;
[0007] Furthermore, the upper part of the roof structure top slab is provided with, from bottom to top, a cement perlite slope layer, a 20mm thick cement mortar leveling layer, a polystyrene board insulation layer, a 30mm thick cement mortar leveling layer, a bentonite waterproof layer, a fiberglass grid, a 30mm thick cement mortar protective layer, a steel wire mesh C20 concrete layer, and a roof tile installation layer.
[0008] Furthermore, the thickness of the bentonite waterproofing layer is 20-30mm.
[0009] Furthermore, the thickness of the C20 concrete wire mesh is 60mm.
[0010] Furthermore, a 20mm thick cement mortar leveling layer and vapor barrier are installed between the roof structure slab and the cement perlite slope layer.
[0011] Furthermore, the bentonite waterproofing layer contains several stiffening ribs.
[0012] Furthermore, the spacing between the stiffening ribs is 900 x 900 mm.
[0013] Compared with the prior art, the present invention has the following advantages:
[0014] The waterproof structure for flat roofs provided by this utility model utilizes the characteristics and advantages of bentonite material to construct a waterproof structure that adapts to the material, achieving a waterproof effect where the waterproof material (bentonite) and the roof structure form an integrated water-repellent mechanism. This completely solves the current problems of roof leakage and waterproof durability, and the waterproof lifespan can reach several hundred years or more.
[0015] In summary, the technical solution of this utility model solves the problem in the prior art of using waterproof membranes for roof waterproofing, where the waterproof membranes cannot bond tightly to the roof substrate, easily leading to roof seepage and indoor leaks. Attached Figure Description
[0016] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model.
[0018] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this utility model.
[0019] In the diagram: 1. Roof structure top slab; 2. Cement perlite slope layer; 3. 20mm thick cement mortar leveling layer; 4. Polystyrene board insulation layer; 5. 30mm thick cement mortar leveling layer; 6. Bentonite waterproof layer; 7. Fiberglass grid; 8. 30mm thick cement mortar protective layer; 9. Steel wire mesh C20 concrete; 10. Roof tile installation layer; 11. Vapor barrier layer; 12. Stiffening ribs. Detailed Implementation
[0020] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0022] 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 according to the present invention. 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.
[0023] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0024] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0025] For ease of description, spatial relative terms such as "above," "over," "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 besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" 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.
[0026] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0027] Example 1
[0028] like Figure 1 As shown, this utility model provides a waterproof structure for a flat roof, including a roof structure slab 1; the upper part of the roof structure slab 1 is provided with, from bottom to top, a cement perlite slope-finding layer 2, a 20mm thick cement mortar leveling layer 3, a polystyrene board insulation layer 4, a 30mm thick cement mortar leveling layer 5, a bentonite waterproof layer 6, a fiberglass grid 7, a 30mm thick cement mortar protective layer 8, a steel wire mesh C20 concrete 9, and a roof tile installation layer 10.
[0029] The thickness of the bentonite waterproof layer 6 is 20-30mm.
[0030] The thickness of the C20 concrete wire mesh is 60mm.
[0031] The structure described in this embodiment is suitable for roof waterproofing structures in southern regions.
[0032] Example 2
[0033] like Figure 2 As shown, (based on Embodiment 1) this utility model also provides a waterproof structure for a flat roof of a building; a 20mm thick cement mortar leveling layer 3 and a vapor barrier layer 11 are also provided between the roof structure top plate 1 and the cement perlite slope layer 2.
[0034] Several stiffening ribs 12 are provided in the bentonite waterproof layer 6.
[0035] The spacing of the stiffening ribs 12 is 900 x 900 mm.
[0036] The structure described in this embodiment is suitable for roof waterproofing in cold northern regions.
[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A waterproof structure for a flat roof, comprising a roof structure top slab (1); characterized in that: The roof structure top plate (1) is provided with the following layers from bottom to top: cement perlite slope layer (2), 20mm thick cement mortar leveling layer (3), polystyrene board insulation layer (4), 30mm thick cement mortar leveling layer (5), bentonite waterproof layer (6), fiberglass grid (7), 30mm thick cement mortar protective layer (8), steel wire mesh C20 concrete (9), and roof tile installation layer (10).
2. The waterproof structure for a flat roof as described in claim 1, characterized in that: The thickness of the bentonite waterproof layer (6) is 20-30 mm.
3. The waterproof structure for a flat roof as described in claim 1, characterized in that: The thickness of the steel wire mesh C20 concrete (9) is 60mm.
4. The waterproof structure for a flat roof as described in claim 1, characterized in that: A 20mm thick cement mortar leveling layer (3) and a vapor barrier layer (11) are also provided between the roof structure top plate (1) and the cement perlite slope layer (2).
5. The waterproof structure for a flat roof as described in claim 1, characterized in that: The bentonite waterproof layer (6) is provided with several stiffening ribs (12).
6. The waterproof structure for a flat roof as described in claim 5, characterized in that: The spacing of the stiffening ribs (12) is 900 x 900 mm.