Combined waterproofing construction for inverted roof and planted roof

CN224605890UActive Publication Date: 2026-08-07CHINA UNITED ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA UNITED ENG
Filing Date
2025-07-31
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0004]在当代建筑工程中的设计与施工中,该两种屋面类型的交接处理方式未有明确规范指引,若处理不当,容易造成排水不畅、屋面渗漏、保温性能受影响等问题,对屋面的坚固性、耐久性和室内空间使用都有较大的消极影响

Benefits of technology

[0016] This invention achieves a smooth transition between the waterproofing and insulation layers of inverted roofs and green roofs through brick masonry edge turning. This invention achieves a seamless transition between the structural layers of inverted roofs and green roofs while reducing thermal bridging and preventing leakage, ensuring the continuity of waterproofing in the combined roof structure, enhancing the integrity of the entire roof project, thus guaranteeing the effectiveness of various roof performance aspects, meeting the requirements of building aesthetics and usability, improving the feasibility of green roofs, and facilitating their promotion; it also enhances the durability of green roofs and represents a practical method for integrated roof design.

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Abstract

The utility model provides a kind of inverted roof and the combined waterproof structure of planting roof, the main problem solved is inverted roof and planting roof exist in the case of same roof simultaneously, the interface problem between different practice and construction level, while guiding construction, and improve the convenience of construction, to solve the practical problem of roof waterproof interface in heavy rainfall area.Inverted roof and planting roof are provided on reinforced concrete floor, inverted roof is provided with waterproof layer and thermal insulation layer from bottom to top;Planting roof is provided with thermal insulation layer and waterproof roll goods from bottom to top;Its characterized in that:the interface between the reinforced concrete floor and inverted roof and planting roof is fixed with brick masonry turnup;The waterproof layer of inverted roof extends to brick masonry turnup, and after laying along brick masonry turnup, it extends to planting roof again, and is laid between thermal insulation layer and waterproof roll goods on planting roof.
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Description

Technical Field

[0001] This utility model relates to a combined waterproof structure of an inverted roof and a green roof. Background Technology

[0002] In southern my country, where rainfall is abundant, an inverted roofing method is often used to achieve better waterproofing. This method places the waterproofing layer below the insulation layer, allowing the insulation to protect the waterproofing. However, commonly used green roofs require the installation of root-penetration resistant waterproofing membranes, necessitating a top-mounted waterproofing layer – a standard method. Therefore, when inverted and standard roofing methods are implemented on the same roof, the issue of waterproofing layer overlap arises.

[0003] In today's architectural design field, building functions and forms are becoming increasingly complex, and single building methods can no longer meet the needs of diverse uses. Against the backdrop of high-quality development in the construction industry, green roofs play a vital role in water retention, heat insulation and cooling, mitigating urban heat island effects, beautifying the living environment, and enhancing spatial comfort. Incorporating green roofs into various types of buildings, including cultural, residential, educational, and office buildings, is an important and universal measure for achieving green building technology and creating artificial natural environments. Therefore, in actual projects, the challenge of integrating green roofs with landscape design on accessible roofs is frequently encountered.

[0004] In contemporary architectural engineering design and construction, there are no clear standardized guidelines for the junction treatment of these two roof types. Improper handling can easily lead to problems such as poor drainage, roof leaks, and compromised insulation performance, significantly negatively impacting the roof's structural integrity, durability, and the usability of interior spaces. This is especially true in the Yangtze River Delta region, which is frequently affected by severe weather such as heavy rainfall and typhoons, making the weak points at the junction of these two roof types pose significant challenges to the actual use of completed projects. Therefore, a waterproofing method is needed to solve the junction problem between inverted roofs and green roofs. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned shortcomings in the existing technology and provide a combined waterproof structure of inverted roof and green roof with reasonable structural design. The main problem to be solved is the junction problem between different construction methods and structural layers when inverted roof and green roof exist on the same roof. At the same time, it guides construction and improves the convenience of construction, so as to solve the practical problem of roof waterproof junction in areas with heavy rainfall.

[0006] The technical solution adopted by this utility model to solve the above problems is: a combined waterproof structure of inverted roof and green roof, wherein an inverted roof and a green roof are provided on a reinforced concrete floor slab, the inverted roof is provided with a waterproof layer and an insulation layer from bottom to top; the green roof is provided with an insulation layer and a waterproof membrane from bottom to top; the characteristic is that: a brick masonry flange is fixed at the junction of the reinforced concrete floor slab and the inverted roof; the waterproof layer of the inverted roof extends to the brick masonry flange, and is laid along the brick masonry flange before extending to the green roof, and is laid between the insulation layer and the waterproof membrane of the green roof.

[0007] The waterproof membrane of the green roof described in this utility model extends above the waterproof layer on the top edge of the brick masonry and is bonded and fixed to the waterproof layer.

[0008] This utility model has a capping material installed above the waterproof membrane on the edge of the brick masonry.

[0009] The insulation layer of the inverted roof of this utility model extends to the side of the brick masonry flange near the inverted roof, and the insulation layer of the green roof extends to the side of the brick masonry flange near the green roof.

[0010] The green roof described in this invention has an additional waterproof membrane installed under the insulation layer.

[0011] The waterproof membrane described in this utility model is a root-penetration resistant waterproof membrane.

[0012] The inverted roof of this invention has a protective layer above the insulation layer.

[0013] The waterproof membrane of the green roof described in this utility model has a protective layer, a drainage layer, a filter layer and a soil covering layer arranged sequentially from bottom to top.

[0014] This invention incorporates a filter layer at the weakest point of the soil cover layer.

[0015] Compared with the prior art, this utility model has the following advantages and effects:

[0016] This invention achieves a smooth transition between the waterproofing and insulation layers of inverted roofs and green roofs through brick masonry edge turning. This invention achieves a seamless transition between the structural layers of inverted roofs and green roofs while reducing thermal bridging and preventing leakage, ensuring the continuity of waterproofing in the combined roof structure, enhancing the integrity of the entire roof project, thus guaranteeing the effectiveness of various roof performance aspects, meeting the requirements of building aesthetics and usability, improving the feasibility of green roofs, and facilitating their promotion; it also enhances the durability of green roofs and represents a practical method for integrated roof design. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0018] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0020] In this embodiment of the utility model, an inverted roof and a green roof are provided on a reinforced concrete floor slab 1.

[0021] The inverted roof is constructed from bottom to top with a waterproof layer 2, an insulation layer 3, and a protective layer 4; the green roof is constructed from bottom to top with an insulation layer 3, a waterproof membrane 5, a protective layer 4, a drainage layer 6, a filter layer 7, and a soil covering layer 8. A filter layer 9 is laid at the weak corners of the soil covering layer 8.

[0022] A brickwork flange 11 is fixed at the junction of the inverted roof and the green roof in the reinforced concrete floor slab 1. The waterproof layer 2 of the inverted roof extends to the brickwork flange 11, and is laid along the brickwork flange 11 before extending to the green roof. It is laid between the insulation layer 3 and the waterproof membrane 5, forming two layers of waterproofing together with the waterproof membrane 5, ensuring the continuity of the waterproof layer and achieving continuous waterproofing of the roof. This design not only retains the advantages of the waterproof performance of the inverted roof, but also meets the needs of the green roof area, ensuring the continuity of the roof waterproof layer and preventing leakage.

[0023] The waterproof membrane 5 of the green roof extends above the top waterproof layer 2 of the brick masonry flange 11 and is bonded and fixed to the waterproof layer 2. A capping 10 is installed above the waterproof membrane 5 to protect the structure.

[0024] The insulation layer 3 of the inverted roof extends to the side facade of the brickwork flange 11 near the inverted roof, and the insulation layer 3 of the green roof extends to the side facade of the brickwork flange 11 near the green roof to reduce thermal bridging.

[0025] An additional waterproof membrane is installed under the insulation layer 3 of the green roof. The waterproof membrane 5 is a root-penetration resistant waterproof membrane.

[0026] Furthermore, it should be noted that the specific embodiments described in this specification may differ in the shape and name of their components. The above description is merely illustrative of the structure of this utility model. All equivalent or simple variations made based on the structure, features, and principles described in this utility model patent concept are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in these claims, all of which should fall within the protection scope of this utility model.

Claims

1. A combined waterproof structure of inverted roof and green roof, wherein an inverted roof and a green roof are installed on a reinforced concrete floor slab; the inverted roof has a waterproof layer and an insulation layer installed from bottom to top; the green roof has an insulation layer and a waterproof membrane installed from bottom to top; characterized in that: The reinforced concrete floor slab is fixed with a brick masonry flange at the junction between the inverted roof and the green roof; the waterproof layer of the inverted roof extends to the brick masonry flange, and is laid along the brick masonry flange before extending to the green roof, and is laid between the insulation layer and the waterproof membrane of the green roof.

2. The combined waterproof structure of inverted roof and green roof according to claim 1, characterized in that: The waterproof membrane of the green roof extends above the waterproof layer on the top edge of the brickwork and is bonded and fixed to the waterproof layer.

3. The combined waterproof structure of inverted roof and green roof according to claim 2, characterized in that: A capping is installed above the waterproof membrane on the edge of the brick masonry.

4. The combined waterproof structure of inverted roof and green roof according to claim 1, characterized in that: The insulation layer of the inverted roof extends to the side of the brickwork flange near the inverted roof, and the insulation layer of the green roof extends to the side of the brickwork flange near the green roof.

5. The combined waterproof structure of inverted roof and green roof according to claim 1, characterized in that: An additional waterproof membrane is installed under the insulation layer of the green roof.

6. The combined waterproof structure of inverted roof and green roof according to claim 1, characterized in that: The waterproof membrane mentioned above is a root-penetration resistant waterproof membrane.

7. The combined waterproof structure of inverted roof and green roof according to claim 1, characterized in that: A protective layer is installed above the insulation layer of the inverted roof.

8. The combined waterproof structure of inverted roof and green roof according to claim 1, characterized in that: The waterproof membrane of the green roof is provided with a protective layer, a drainage layer, a filter layer and a soil covering layer from bottom to top.

9. The combined waterproof structure of inverted roof and green roof according to claim 8, characterized in that: A filter layer was laid at the weakest point of the soil cover.