Green building roof weather-proof layer structure
By using a combination of lightweight expanded clay concrete, waterproof membrane, polyurea coating, aluminum foil composite reflective layer and water guide frame on the roof of green buildings, the problems of insufficient weather resistance and bonding strength of traditional roof structures are solved, achieving efficient waterproofing, heat preservation and energy saving, and extending the service life of buildings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 福建诚铄建设工程有限公司
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-19
AI Technical Summary
Existing green building roof weathering layer structures have shortcomings in terms of weather resistance, bonding strength and durability. Traditional waterproof membranes are prone to failure due to climate, composite protective layers are prone to falling off, and vegetation roof systems have high maintenance costs and limited applicability.
Lightweight expanded clay concrete is used as the foundation support, combined with a waterproof layer, a thermal insulation layer and a reflective layer. The waterproof layer consists of waterproof membrane and polyurea coating. The thermal insulation layer has grooves and fixing components. The reflective layer uses aluminum foil composite material and is coated with nano titanium dioxide. The water guide frame ensures smooth drainage. The layers work together to improve durability and energy efficiency.
It achieves the stability of the waterproof layer and the thermal insulation performance of the insulation layer under extreme climatic conditions, reduces building energy consumption and maintenance costs, and extends the service life of the roof structure.
Smart Images

Figure CN224259732U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of green building technology, and in particular to a green building roof weathering layer structure. Background Technology
[0002] Green buildings are structures that, throughout their entire lifespan, maximize resource conservation (energy saving, land saving, water saving, and material saving), protect the environment, reduce pollution, and provide people with healthy, suitable, and efficient living spaces, coexisting harmoniously with nature. In coastal areas, strong winds and rainwater brought by typhoons can cause significant impacts on roofs, accelerating material damage. In such cases, the weather-resistant roof structure of green buildings, with its excellent weather resistance, anti-aging properties, and high strength, can effectively resist the erosion of harsh weather, extend the roof's service life, reduce later maintenance costs, maintain the roof's waterproof and heat insulation properties, and ensure the normal use of the building.
[0003] Green building roof weathering layers effectively resist the impact of natural elements such as sunlight, rain, wind, snow, and hail. Strong ultraviolet radiation accelerates the aging and embrittlement of ordinary building materials, while the special materials used in weathering layers possess excellent UV resistance, slowing down the aging process. In rainy areas, its dense structure and superior waterproofing prevent rainwater penetration, protecting the roof's waterproofing and structural layers from moisture damage, and avoiding problems such as reduced roof structural strength and damage to interior finishes caused by water seepage. Facing the impact of wind, snow, and hail, its high strength allows it to withstand external forces, protecting the integrity of the overall roof structure.
[0004] In existing technologies, some green building roof weathering layers use traditional waterproof membranes such as SBS modified bitumen membranes, which, while possessing good waterproofing performance, are prone to softening at high temperatures and cracking at low temperatures, resulting in poor weather resistance. Sprayed polyurethane waterproofing layers, although convenient to apply, will powder upon prolonged exposure to ultraviolet light, making durability difficult to guarantee. Composite protective layers, such as the combination of aluminum foil reflective layers and insulation layers, can effectively reflect solar radiation, but the aluminum foil is prone to oxidation and has low adhesion strength to the substrate, making it easy to detach. Vegetated roof systems rely on plant cover to reduce roof temperature, but require regular maintenance and place high demands on the building's load-bearing capacity. Therefore, to address these issues, a green building roof weathering layer structure is proposed. Utility Model Content
[0005] The purpose of this application is to provide a weather-resistant roofing layer structure for green buildings, aiming to improve upon the shortcomings of existing technologies such as insufficient weather resistance of traditional waterproof membranes and sprayed polyurethane waterproofing layers, which are prone to failure due to climate effects; poor bonding strength and durability of composite protective layers, which are prone to delamination and peeling after long-term use; and high maintenance costs and limited applicability of vegetation roofing systems.
[0006] This application provides a green building roof weathering layer structure using the following technical solution:
[0007] A green building roof weathering layer structure includes a roof wall, with lightweight expanded clay concrete fixedly connected to the bottom inner wall of the roof wall, a waterproof layer installed on top of the lightweight expanded clay concrete, an insulation layer installed on top of the waterproof layer, a groove opened inside the insulation layer, multiple fixing components detachably connected inside the insulation layer, an adhesive second coating on top of the insulation layer, a reflective layer installed on top of the adhesive second, and water guide frames installed on both the left and right sides inside the roof wall.
[0008] The waterproof layer includes a waterproof membrane, the bottom of which is installed on top of the lightweight ceramsite concrete, a polyurea coating is installed on top of the waterproof membrane, and an adhesive is applied to the top of the polyurea coating.
[0009] Through the above technical solutions: lightweight expanded clay concrete provides basic support and assists drainage, the waterproof layer isolates rainwater and protects the internal structure, the thermal insulation layer achieves efficient heat insulation, the reflective layer reduces heat absorption, and the water guide frame ensures smooth drainage. The various layers work together to improve the building's energy efficiency and durability.
[0010] Preferably, the fixing component includes a fixing frame, the outside of which is installed inside the roof wall, and bolts one are installed on both the left and right sides inside the fixing frame, and bolt two is threadedly connected inside the insulation layer;
[0011] The above technical solution achieves a stable installation of the insulation layer in the roof wall. The fixing frame is fixed to the roof wall by bolt one, and bolt two penetrates the insulation layer, which firmly locks the insulation layer and prevents it from shifting under the influence of the external environment, ensuring that the insulation layer can continuously and stably perform its heat insulation function.
[0012] Preferably, the bottom of the water guide frame is installed on the top of the insulation layer, and the left and right sides of the reflective layer are fixedly connected to the adjacent sides of the two water guide frames;
[0013] Through the above technical solution, the water guide can quickly drain rainwater from the roof, preventing water accumulation and seepage. At the same time, it is connected to the reflective layer to prevent rainwater from intruding into the insulation layer during the drainage process, thus protecting the performance of the insulation layer in all aspects and extending the service life of the roof structure.
[0014] Preferably, the external thread of the second bolt is connected to the interior of the reflective layer, and the bottom of the second bolt contacts the top of the fixing frame;
[0015] Through the above technical solution, bolt 2 penetrates the reflective layer and the insulation layer and contacts the fixing frame, which not only fixes the insulation layer, but also firmly fixes the reflective layer, ensuring that the reflective layer can stably perform its function of reflecting heat. At the same time, the insulation layer and the reflective layer work together to improve the roof insulation effect.
[0016] Preferably, the external thread of the first bolt is connected to the interior of the roof wall, and the top inner wall of the second bolt contacts the top of the water guide frame;
[0017] Through the above technical solution: Bolt 1 firmly fixes the fixing frame to the roof wall, and Bolt 2 contacts the water guide frame, so that the fixing components, roof wall, insulation layer and water guide frame are interconnected, which enhances the stability of the entire roof structure, ensures that the components work together under stress, and improves the reliability of the roof structure.
[0018] Preferably, the bottom of the insulation layer is installed on top of the first adhesive, and the left and right sides of the waterproof membrane are fixedly connected to the inner wall of the roof wall;
[0019] The above technical solution involves: adhesive firmly bonding the insulation layer and waterproof layer to prevent separation and ensure that heat cannot be lost through the gaps between the layers; and waterproof membrane fixing the roof wall to form a closed waterproof structure to prevent rainwater from penetrating into the insulation layer and to create a good working environment for the insulation layer.
[0020] Preferably, the left and right sides of the polyurea coating are fixedly connected to the inner wall of the roof wall, and the outside of the groove is engaged with the inner wall of the fixing frame;
[0021] The above technical solution involves fixing the urea coating to the roof wall, filling the gaps in the waterproof membrane, and enhancing the waterproof effect; the groove engages with the fixing frame to achieve precise positioning and installation of the insulation layer, preventing the insulation layer from shaking and affecting its thermal insulation performance, while also facilitating the disassembly and maintenance of the insulation layer.
[0022] Preferably, the reflective layer is made of aluminum foil composite material, and the surface of the reflective layer is provided with a nano titanium dioxide coating.
[0023] Through the above technical solutions: the high reflectivity of aluminum foil composite material can reflect a large amount of solar radiation heat, and the nano titanium dioxide coating further enhances the reflectivity and oxidation resistance, reduces the transfer of heat to the insulation layer, lowers the roof temperature, reduces building air conditioning energy consumption, and at the same time extends the service life of the reflective layer and reduces maintenance costs.
[0024] In summary, this application includes the following beneficial technical effects:
[0025] In this invention, the waterproof membrane can block most rainwater penetration, while the polyurea coating can effectively fill the tiny gaps at the joints of the membrane, avoiding the risk of leakage. Compared with traditional single waterproof membranes, even in heavy rain or long-term immersion in rainwater, it can ensure that the interior of the building remains dry, prevent the roof structure from being damaged by water seepage, and extend the service life of the building. The polyurea coating is not only waterproof but also has high and low temperature resistance, overcoming the defects of traditional SBS modified bitumen membranes that soften at high temperatures and crack at low temperatures. It can still maintain stable physical properties in extreme temperature environments. The nano-aluminum foil composite film reflective layer has strong anti-oxidation ability and is not easily oxidized compared to ordinary aluminum foil, further enhancing the weather resistance of the roof structure and reducing maintenance frequency and cost. The insulation layer can effectively block heat transfer, reducing heat entering the room in summer and reducing air conditioning energy consumption; and preventing heat loss in winter, improving building energy efficiency. The reflective layer nano-aluminum foil composite film can efficiently reflect solar radiation heat, reducing the heat absorbed by the roof. Compared with a single reflective layer or insulation layer, it significantly improves the thermal performance of the roof and reduces energy consumption during building operation, achieving energy conservation and emission reduction. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of a weather-resistant roof structure for green buildings proposed in this utility model;
[0027] Figure 2 This is a schematic diagram of the insulation layer structure of a weather-resistant roof structure for green buildings proposed in this utility model;
[0028] Figure 3 for Figure 2 Enlarged view of point A in the image;
[0029] Figure 4 This is a schematic diagram of a water guide frame structure for a green building roof weathering layer structure proposed in this utility model;
[0030] Figure 5 for Figure 4 Enlarged view of point B in the image;
[0031] Explanation of reference numerals in the attached drawings: 1. Roof wall; 2. Lightweight expanded clay concrete; 3. Waterproof layer; 31. Waterproof membrane; 32. Polyurea coating; 33. Adhesive one; 4. Insulation layer; 5. Groove; 6. Adhesive two; 7. Reflective layer; 8. Fixing components; 81. Fixing bracket; 82. Bolt one; 83. Bolt two; 9. Water guide. Detailed Implementation
[0032] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.
[0033] Example: A weather-resistant roofing structure for green buildings, referring to... Figure 1 , Figure 3 and Figure 4 The structure includes a roof wall 1, with lightweight expanded clay concrete 2 fixedly connected to the bottom inner wall of the roof wall 1. The lightweight expanded clay concrete 2 is laid on the bottom inner wall of the roof wall 1 with a slope of 2 degrees. On the one hand, its lightweight properties reduce the overall weight of the roof and reduce the building's load-bearing pressure; on the other hand, the 2-degree slope, combined with the waterproof layer 3, can effectively guide rainwater to both sides and accelerate the drainage process. The top of the lightweight expanded clay concrete 2 is equipped with the waterproof layer 3, and the top of the waterproof layer 3 is equipped with the thermal insulation layer 4. The thermal insulation layer 4 can block external heat from entering the room, reducing air conditioning energy consumption; in winter, it prevents indoor heat loss, improves building energy efficiency, and effectively maintains stable indoor temperature.
[0034] Specifically, the roof wall 1 serves as the basic frame to support and protect the internal structure. The lightweight ceramsite concrete 2, with a 2-degree slope, works in conjunction with the waterproof layer 3 to quickly guide rainwater out, while its lightweight properties reduce the building's load. The waterproof membrane 31 and polyurea coating 32 of the waterproof layer 3 form a double waterproof barrier, preventing rainwater infiltration and creating a dry environment for the insulation layer 4. The insulation layer 4 uses the nanoporous structure of the aerogel board for efficient heat insulation, blocking external heat from entering in summer and reducing air conditioning use, and preventing indoor heat loss in winter, significantly improving building energy efficiency. The three elements work together to achieve efficient waterproofing, lightweight load-bearing capacity, and excellent thermal insulation performance of the green building roof structure, effectively reducing building energy consumption and maintenance costs, and extending the building's service life.
[0035] The insulation layer 4 has a groove 5 inside, which enables precise positioning and installation of the insulation layer 4 in the roof wall 1, ensuring the aerogel board is installed firmly and avoiding the impact of displacement or shaking on the insulation effect. At the same time, it facilitates the disassembly and maintenance of the insulation layer 4. The insulation layer 4 has multiple detachable fixing components 8 inside. The top of the insulation layer 4 is coated with adhesive 6. The adhesive 6 is applied to the top of the insulation layer 4. Its adhesive properties can tightly adhere to the reflective layer 7 to form a firm connection. While ensuring the stable installation of the reflective layer 7, it can also fill the small gaps between the two to prevent air from entering and avoid heat transfer caused by air flow, thereby enhancing the overall insulation and heat insulation effect. The reflective layer 7 is installed on the top of the adhesive 6. Water guide racks 9 are installed on both the left and right sides inside the roof wall 1.
[0036] Specifically, the groove 5 inside the insulation layer 4 cooperates with the fixing bracket 81 in the fixing component 8 to achieve precise positioning and stable installation, preventing the aerogel board from shifting and affecting the insulation effect, while also facilitating later disassembly and maintenance; the adhesive 6 tightly adheres to the reflective layer 7, filling gaps and blocking heat transfer from airflow, thus enhancing the thermal insulation performance; the reflective layer 7, with its high reflectivity, reduces heat transfer to the insulation layer 4; and the water guide 9 inside the roof wall 1 guides rainwater out in a timely manner, preventing water accumulation from damaging the insulation layer 4. These structures work together to achieve efficient thermal insulation, convenient maintenance, and reliable waterproofing of the roof weathering layer structure, effectively improving building energy efficiency and service life.
[0037] The reflective layer 7 is made of aluminum foil composite material, and the surface of the reflective layer 7 is coated with nano titanium dioxide. The aluminum foil composite material has high reflectivity, which can reflect a large amount of solar radiation heat. The nano titanium dioxide coating further improves the reflective performance and anti-oxidation ability, making it more durable than ordinary aluminum foil. It can effectively reduce the transfer of heat to the insulation layer 4, reduce the heat absorption of the roof, and reduce the frequency of building air conditioning use and energy consumption. The bottom of the water guide 9 is installed on the top of the insulation layer 4. The left and right sides of the reflective layer 7 are fixedly connected to the adjacent side of the two water guides 9. During rainfall, the water guide 9 can quickly guide rainwater to drain from the roof along the set path, avoiding rainwater accumulation and seepage on the roof. Its connection with the reflective layer 7 not only ensures smooth drainage, but also prevents rainwater from intruding into the insulation layer 4, thus protecting the performance of the aerogel board from being affected in all aspects.
[0038] Specifically, the reflective layer 7, with its high reflectivity of aluminum foil composite material, reflects a large amount of solar radiation heat away. The nano-titanium dioxide coating on the surface further enhances the reflectivity and anti-oxidation capabilities, significantly reducing heat transfer to the insulation layer 4, reducing roof heat absorption, and lowering the frequency of air conditioning use and energy consumption. The bottom of the water guide 9 is connected to the top of the insulation layer 4 and fixed to the side of the reflective layer 7. During rainfall, it can quickly guide rainwater out and prevent water seepage. The combination of the two is not only highly efficient in heat insulation and energy saving, but also ensures that the aerogel board is not eroded by rainwater.
[0039] Reference Figure 2 and Figure 3The waterproof layer 3 includes a waterproof membrane 31. As the first layer of the waterproof layer 3, the waterproof membrane 31 directly contacts the top of the lightweight ceramsite concrete 2. It has good flexibility and waterproof properties, and can tightly adhere to the base surface to form a continuous waterproof membrane. The bottom of the waterproof membrane 31 is installed on top of the lightweight ceramsite concrete 2, and a polyurea coating 32 is installed on top of the waterproof membrane 31. The waterproof layer 3 consists of the waterproof membrane 31 and the polyurea coating 32. The waterproof membrane 31 is directly laid on top of the lightweight ceramsite concrete 2, which can block most rainwater penetration, forming the first waterproof barrier. The polyurea coating 32 covers the waterproof membrane 31, effectively filling the tiny gaps at the membrane joints and avoiding the risk of leakage. Both are fixed to the inner wall of the roof wall 1 on the left and right sides, forming a fully enclosed waterproof structure. The polyurea coating 32 covers the top of the waterproof membrane 31 and has high strength and high elasticity, which not only fills the gaps at the waterproof membrane 31 but also... 1. The tiny gaps at the joints eliminate the risk of leakage and also have excellent high and low temperature resistance, overcoming the defects of traditional SBS modified bitumen rolls that soften at high temperatures and crack at low temperatures. It can still maintain stable physical properties in extreme temperature environments, enhancing the overall durability of the waterproof layer 3. The top of the polyurea coating 32 is coated with adhesive 33, and the bottom of the insulation layer 4 is installed on the top of the adhesive 33. The adhesive 33 is applied to the top of the polyurea coating 32, and its main function is to firmly bond the insulation layer 4 to the waterproof layer 3, providing stable adhesion and ensuring that the insulation layer 4 and the waterproof layer 3 are tightly bonded, preventing the two from separating due to external forces. At the same time, it plays a certain sealing role, reducing heat loss through the gaps between the layers and improving the overall thermal insulation and waterproof effect of the roof. The left and right sides of the waterproof roll 31 are fixedly connected to the inner wall of the roof wall 1, and the left and right sides of the polyurea coating 32 are fixedly connected to the inner wall of the roof wall 1.
[0040] Specifically, the waterproof membrane 31, with its excellent flexibility, tightly adheres to the lightweight ceramsite concrete 2, forming a continuous waterproof membrane that blocks most rainwater penetration. The polyurea coating 32 covers it, filling the seams of the membrane and eliminating potential leakage. Its high strength, high elasticity, and resistance to high and low temperatures ensure stable waterproofing performance in extreme environments. The two are fixed to the inner walls of the roof wall 1, forming a fully enclosed waterproof system. The adhesive 33 firmly bonds the insulation layer 4 to the polyurea coating 32, which not only enhances the stability of the interlayer connection but also reduces heat loss through sealing. Ultimately, this achieves a synergistic improvement in waterproofing and insulation performance, effectively protecting the internal structure of the roof and extending the building's service life.
[0041] Reference Figures 3 to 5The fixing component 8 includes a fixing frame 81. The fixing frame 81 is externally installed inside the roof wall 1. Bolt 82 is installed on both the left and right sides inside the fixing frame 81. Bolt 83 is threadedly connected to the insulation layer 4. The fixing component 8 includes a fixing frame 81, bolt 82 and bolt 83. The fixing frame 81 is externally installed inside the roof wall 1 and fixed by bolt 82 threaded connection inside the roof wall 1. Bolt 83 is threadedly connected to the insulation layer 4 and the reflective layer 7 and contacts the top of the fixing frame 81. They work together to firmly fix the insulation layer 4 inside the roof wall 1, preventing it from shifting under the action of the external environment and ensuring that the insulation layer 4 can stably perform its heat insulation function. The external thread of bolt 83 is connected to the inside of the reflective layer 7. The bottom of bolt 83 contacts the top of the fixing frame 81. The external thread of bolt 82 is connected to the inside of the roof wall 1. The top inner wall of bolt 83 contacts the top of the water guide frame 9. The outside of the groove 5 is engaged with the inner wall of the fixing frame 81.
[0042] Specifically, the groove 5 inside the insulation layer 4 is tightly engaged with the inner wall of the fixing frame 81 to achieve precise positioning; the bolt 83 passes through the reflective layer 7 and the insulation layer 4 in sequence, with its bottom abutting against the top of the fixing frame 81 and its top contacting the top of the water guide frame 9, forming a tight fastening that not only firmly locks the insulation layer 4 to prevent it from shifting due to external factors such as wind and temperature changes, but also ensures that the reflective layer 7 stably reflects heat and the water guide frame 9 efficiently drains water through linkage with the reflective layer 7 and the water guide frame 9.
[0043] Working principle: The aerogel board, acting as the insulation layer 4, restricts the heat conduction of gas molecules and blocks the path of heat transfer through air convection, achieving efficient heat insulation. The slope of the lightweight expanded clay concrete 2 at the bottom of the roof wall 1 is 2 degrees. The waterproof layer 3 consists of a waterproof membrane 31 and a polyurea coating 32, which tightly covers the top of the lightweight expanded clay concrete 2, isolating rainwater and ensuring that the aerogel board is in a dry environment, maintaining stable thermal insulation performance.
[0044] The top of the insulation layer 4 is coated with adhesive 6 to fix the reflective layer 7. The reflective layer 7 is made of aluminum foil composite material and has a nano titanium dioxide coating, which can efficiently reflect solar radiation heat and reduce the heat transfer to the aerogel board. The fixing bracket 81 in the fixing component 8, together with the internal groove 5 of the insulation layer 4, firmly installs the aerogel board in the roof wall 1 to prevent displacement from affecting the insulation effect.
[0045] The water guide racks 9 on the left and right sides inside the roof wall 1 are installed at the bottom of the insulation layer 4 and connected to the side of the reflective layer 7 to guide rainwater out and prevent water from accumulating and disturbing the aerogel board.
[0046] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.
Claims
1. A green building roof weathering layer structure, comprising roof walls (1), characterized in that: The bottom inner wall of the roof wall (1) is fixedly connected to a lightweight ceramsite concrete (2), a waterproof layer (3) is installed on the top of the lightweight ceramsite concrete (2), a heat insulation layer (4) is installed on the top of the waterproof layer (3), a groove (5) is opened inside the heat insulation layer (4), a number of fixing components (8) are detachably connected inside the heat insulation layer (4), an adhesive second (6) is coated on the top of the heat insulation layer (4), a reflective layer (7) is installed on the top of the adhesive second (6), and water guide frames (9) are installed on both the left and right sides inside the roof wall (1). The waterproof layer (3) includes a waterproof membrane (31), the bottom of which is installed on top of the lightweight ceramsite concrete (2), and a polyurea coating (32) is installed on top of the waterproof membrane (31), and an adhesive (33) is applied to the top of the polyurea coating (32).
2. The weather-resistant roof structure for green buildings according to claim 1, characterized in that: The fixing component (8) includes a fixing frame (81), the outside of which is installed inside the roof wall (1), and bolts (82) are installed on both the left and right sides inside the fixing frame (81), and bolts (83) are threadedly connected inside the insulation layer (4).
3. The weather-resistant roof structure for green buildings according to claim 1, characterized in that: The bottom of the water guide frame (9) is installed on the top of the insulation layer (4), and the left and right sides of the reflective layer (7) are fixedly connected to the adjacent sides of the two water guide frames (9).
4. The weather-resistant roof structure for green buildings according to claim 2, characterized in that: The external thread of the second bolt (83) is connected to the interior of the reflective layer (7), and the bottom of the second bolt (83) is in contact with the top of the fixing frame (81).
5. The weather-resistant roof structure for green buildings according to claim 2, characterized in that: The external thread of the first bolt (82) is connected to the interior of the roof wall (1), and the top inner wall of the second bolt (83) is in contact with the top of the water guide (9).
6. The weather-resistant roof structure for green buildings according to claim 1, characterized in that: The bottom of the insulation layer (4) is installed on the top of the adhesive (33), and the left and right sides of the waterproof membrane (31) are fixedly connected to the inner wall of the roof wall (1).
7. The weather-resistant roof structure for green buildings according to claim 2, characterized in that: The left and right sides of the polyurea coating (32) are fixedly connected to the inner wall of the roof wall (1), and the outside of the groove (5) is engaged with the inner wall of the fixing frame (81).
8. The weather-resistant roofing structure for green buildings according to claim 1, characterized in that: The reflective layer (7) is made of aluminum foil composite material, and the surface of the reflective layer (7) is coated with nano titanium dioxide.