Roof heat-preservation waterproof board and roof structure

Abstract

The utility model belongs to the technical field of building construction materials, and discloses a roof heat preservation waterproof plate and a roof structure. The roof heat preservation waterproof plate comprises a roof structure main body layer and an aerogel heat preservation layer, the aerogel heat preservation layer and the roof structure main body layer are compounded into an integrated structure plate, and the integrated structure plate comprises a plurality of profiling parts which extend in the first direction and are spaced through connecting parts in the second direction; the first surface of the integrated structural plate protrudes towards the second surface to form the profiling part; the clamping connection area comprises lap joint parts located on the two sides of the main body area in the first direction and / or the second direction. The aerogel layer is arranged on one side of the roof structure main body layer and is compounded with the roof structure main body layer to form an integral plate, so that the roof heat-preservation waterproof plate has waterproof and heat-preservation functions.

Description

Technical Field

[0001] The present invention relates to building construction materials, and more particularly to a roof insulation and waterproofing board and a roof structure. Background Art

[0002] The bottom surface of traditional waterproof boards or composite boards is usually covered with PE film, or the steel board is not covered with a covering layer, which does not have a heat preservation effect. However, existing waterproof boards or composite boards do not have heat preservation function. If heat preservation function is required, a layer of glass wool needs to be added underneath to meet the heat preservation requirements. The glass wool also needs a steel mesh to support it, as well as a PE film covering the bottom of the waterproof board or composite board, so the cost of the roofing material is high, and the gradual installation of each structural layer will also lead to low installation efficiency. Summary of the invention

[0003] The embodiment of the present application provides a roof thermal insulation and waterproofing board, which has a simple structure, is easy to install, disassemble and repair, and has the functions of thermal insulation and waterproofing.

[0004] In a first aspect, the present application provides a roof thermal insulation and waterproof board, comprising a main body area and a snap-fit ​​connection area distributed along the circumference of the main body area; the roof thermal insulation and waterproof board comprises: a roof structure main body layer, an aerogel insulation layer, the aerogel insulation layer and the roof structure main body layer are composited into an integrated structural board; the integrated structural board comprises a plurality of profiled portions extending along a first direction and spaced apart by connecting portions in a second direction, the profiled portions protruding from the first surface of the roof thermal insulation and waterproof board toward the second surface; the snap-fit ​​connection area comprises overlapping portions located on both sides of the main body area along the first direction and / or the second direction.

[0005] According to an embodiment of one aspect of the present application, the snap-fit ​​connection area includes a first overlap portion and a second overlap portion located on both sides of the main area along the second direction, wherein at least the second overlap portion includes an overlap portion and a flexible overlap edge extending from the overlap portion away from the main area in the second direction.

[0006] According to an embodiment of one aspect of the present application, the snap-fit ​​connection area includes a first overlap portion and a second overlap portion located on both sides of the main area along the first direction, wherein at least the second overlap portion includes an overlap portion and a flexible overlap edge extending from the overlap portion away from the main area in the first direction.

[0007] According to an embodiment of one aspect of the present application, the overlapping portion is formed by the first surface of the roof insulation waterproof board protruding toward the second surface.

[0008] According to an embodiment of one aspect of the present application, the main layer of the roof structure includes a metal substrate and a polymer material layer stacked in sequence.

[0009] According to an embodiment of one aspect of the present application, the aerogel insulation layer is bonded to a side of the metal substrate away from the polymer material layer.

[0010] According to an embodiment of one aspect of the present application, a snap-fitting portion is formed by protruding from the first surface of the roof thermal insulation and waterproofing board toward the second surface.

[0011] According to an embodiment of one aspect of the present application, the distance that the locking portion protrudes from the first surface to the second surface of the roof insulation waterproof board is smaller than the distance that the profiled portion protrudes from the first surface to the second surface of the roof insulation waterproof board.

[0012] In the second aspect, the present application provides a roof structure, including: the above-mentioned roof insulation and waterproof panels, the roof insulation and waterproof panels are distributed in an array along the first direction and along the second direction; the flexible overlapping edge of one of two adjacent roof insulation and waterproof panels is flexibly and sealedly connected to the overlapping portion of the other.

[0013] According to an embodiment of one aspect of the present application, the roof structure also includes a support member, which is arranged at the lower part of the roof insulation and waterproofing board.

[0014] According to another embodiment of the present application, the profiled portion of the roof thermal insulation and waterproofing board is arranged at an angle with the support member along its own extension direction.

[0015] The roof thermal insulation and waterproof board of the embodiment of the present application is provided with an aerogel layer on the first side of the main layer of the roof structure, which is composited with the main layer of the roof structure to form an integral board, and is used as the roof thermal insulation and waterproof board, so that the roof thermal insulation and waterproof board has the functions of waterproofing and heat preservation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 It is a structural schematic diagram of a roof insulation and waterproofing board provided by an embodiment of the present application;

[0018] Figure 2 It is an enlarged view of a local structure A of a roof thermal insulation and waterproofing board provided in an embodiment of the present application;

[0019] Figure 3 It is a structural schematic diagram of a roof thermal insulation and waterproofing board provided by another embodiment of the present application;

[0020] Figure 4 It is a structural schematic diagram of a roof insulation and waterproofing board provided by another embodiment of the present application;

[0021] Figure 5 It is a structural schematic diagram of a roof insulation and waterproofing board provided in yet another embodiment of the present application.

[0022] Description of reference numerals:

[0023] 1. Main layer of roof structure; 10. Metal substrate; 11. Polymer material layer; 12. Hot-melt pressure-sensitive adhesive layer; 2. Aerogel insulation layer; 3. Overlapping part; 31. First overlapping part; 32. Second overlapping part; 4. Flexible overlapping edge; 5. Profiled part; 6. Connecting part; 7. Clamping part; 8. Support member; X1. First direction; X2. Second direction. DETAILED DESCRIPTION

[0024] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0026] As pointed out in the background technology section, the existing waterproof boards or roof panels require many types of materials and have complex structures during production, resulting in long construction periods and high costs.

[0027] In order to solve the problems of the prior art, the embodiments of the present application provide a roof insulation and waterproofing board and a roof structure.

[0028] The following first introduces the roof insulation and waterproofing board provided in the embodiment of the present application. Figure 1 A schematic structural diagram of a roof thermal insulation and waterproofing board provided in one embodiment of the present application is shown.

[0029] like Figure 1As shown, an embodiment of the present application provides a roof thermal insulation and waterproof board, including a main body area and a snap-fit ​​connection area distributed along the circumference of the main body area, the roof thermal insulation and waterproof board includes: a roof structure main layer 1, an aerogel insulation layer 2, the aerogel insulation layer 2 and the roof structure main layer 1 are composited into an integrated structural board; the integrated structural board includes a plurality of corrugated portions 5 extending along a first direction X1 and spaced by connecting portions 6 in a second direction X2, the corrugated portions 5 are formed by protruding from the first surface toward the second surface of the integrated structural board; wherein the snap-fit ​​connection area includes overlapping portions 3 located on both sides of the main body area along the first direction and / or the second direction.

[0030] The roof thermal insulation and waterproof board of the embodiment of the present application is provided with a layer of aerogel insulation layer on one side of the main layer of the roof structure, which is composited with the main layer of the roof structure to form an integrated structural board, and is used as a roof thermal insulation and waterproof board, so that the roof thermal insulation and waterproof board can have the functions of waterproofing and heat preservation.

[0031] In some embodiments of the present application, reference Figure 4 As shown, the snap-fit ​​connection area includes a first overlap portion 31 and a second overlap portion 32 located on both sides of the main body area along the first direction X1, wherein the second overlap portion 32 includes an overlap portion 3 and a flexible overlap edge 4 extending from the overlap portion 3 away from the main body area in the first direction X1. The first overlap portion 31 only includes the overlap portion 3. It is understandable that the first overlap portion 31 can also be provided with an overlap portion 3 and a flexible overlap edge 4 extending from the overlap portion 3 away from the main body area in the first direction X1. In these embodiments, the main body area is the area formed by the pressing portion 5 and the connecting portion 6 extending along the first direction X1.

[0032] In some embodiments of the present application, Figure 3 As shown, the snap-fit ​​connection area includes a first overlap portion 31 and a second overlap portion 32 located on both sides of the main body area along the second direction X2, wherein the second overlap portion 32 includes an overlap portion 3 and a flexible overlap edge 4 extending from the overlap portion 3 away from the main body area in the second direction X2. The first overlap portion 31 only includes the overlap portion 3. It is understandable that the first overlap portion 31 can also be provided with an overlap portion 3 and a flexible overlap edge 4 extending from the overlap portion 3 away from the main body area in the second direction X2. In these embodiments, the main body area, i.e., the area formed by the press-formed portion 5 and the connecting portion 6 extending along the first direction X1.

[0033] In some embodiments of the present application, Figure 4As shown, the snap-fit ​​connection area includes a first overlap portion 31 and a second overlap portion 32 located on both sides of the main body area along the first direction X1 and the second direction X2, respectively. Among them, the second overlap portion 32 includes an overlap portion 3 and a flexible overlap edge 4 extending from the overlap portion 3 away from the main body area in the first direction X1, and the second overlap portion 32 also includes the overlap portion 3 and the flexible overlap edge 4 extending from the overlap portion 3 away from the main body area in the second direction X2. The first overlap portion 31 only includes the overlap portion 3. It can be understood that the first overlap portion 31 can also be provided with an overlap portion 3 and a flexible overlap edge 4 extending from the overlap portion 3 away from the main body area in the first direction X1, and the first overlap portion 31 can also be provided with an overlap portion 3 and a flexible overlap edge 4 extending from the overlap portion 3 away from the main body area in the second direction X2. In these embodiments, the snap-fit ​​connection area is an area distributed along the peripheral side of the main body area.

[0034] The roof insulation waterproof board of the embodiment of the present application is also provided with a flexible overlap edge extending from the overlap portion away from the main area at the overlap portion on one side of the first direction or the second direction, so that after the two adjacent roof insulation waterproof boards are overlapped, the flexible overlap edge of one roof insulation waterproof board is sealed and connected with the overlap portion of the other roof insulation waterproof board, so as to realize the waterproof and sealed connection of the roof insulation waterproof board and enhance the sealing performance of the roof insulation waterproof board. In the embodiment of the present application, the roof insulation waterproof board uses an aerogel insulation layer as the insulation layer, and is flexibly connected with the adjacent roof insulation waterproof board through the flexible overlap edge, so as to have strong sealing performance and better insulation effect. The aerogel insulation layer 2 is compounded with the main layer 1 of the roof structure into an integrated structural board, and serves as the insulation layer of the roof insulation waterproof board. It is not necessary to separately set and install the steel mesh and glass wool as the insulation board in the prior art, which can further save costs. Moreover, the roof insulation and waterproof board of the embodiment of the present application uses fewer types of materials and has a simple structure, which can facilitate construction workers to carry out construction quickly, thereby effectively shortening the construction period and reducing the cost of the roof insulation and waterproof board from two aspects: the structural material of the roof insulation and waterproof board and the convenience of construction.

[0035] In the embodiments of the present application, the provision of the flexible overlapping edges enables the roof thermal insulation waterproof board to not only improve the sealing and waterproof performance of the roof thermal insulation waterproof board by welding the flexible overlapping edges into an integrally sealed waterproof structure covering the entire roof, but also enables two adjacent roof thermal insulation waterproof boards to be flexibly connected, thereby ensuring that the roof thermal insulation waterproof board will not expand or contract due to temperature changes in the environment, resulting in poor sealing performance.

[0036] In some embodiments of the present application, the flexible overlapping edge 4 can also be arranged on the upper side of the overlapping portion 3 .

[0037] In some embodiments of the present application, the integral board formed by the main roof structure layer 1 and the aerogel insulation layer 2 is a roof insulation and waterproof board with a layered flat plate structure.

[0038] In an embodiment of the present application, a roof thermal insulation and waterproof board having a plurality of corrugated portions 5 has an uneven structure. While enhancing the structural strength of the roof thermal insulation and waterproof board, the recessed portion formed between the protruding corrugated portion and the connecting portion also forms a drainage channel, which is beneficial for the collection and discharge of rainwater from the roof.

[0039] In some embodiments of the present application, the overlap portion 3 is formed by the first surface of the roof insulation waterproof board protruding toward the second surface. Figure 1 As shown, the profiled portions 5 relatively arranged on both sides of the main area of ​​the roof thermal insulation waterproof board along the second direction X2 serve as the overlapping portions 3, so that the two roof thermal insulation waterproof boards overlapped along the second direction are connected by engaging the overlapping portion 3 of one of the roof thermal insulation waterproof boards with the overlapping portion 3 of the other roof thermal insulation waterproof board.

[0040] In the embodiments of the present application, the first surface refers to the surface of the aerogel insulation layer 2 facing away from the main layer 1 of the roof structure, and the second surface refers to the surface of the main layer 1 of the roof structure facing away from the aerogel insulation layer 2.

[0041] In some embodiments of the present application, Figure 1 and Figure 2 As shown, the main layer 1 of the roof structure includes a metal substrate 10 and a polymer material layer 11 which are stacked in sequence. Among them, the metal substrate can be made of a steel plate, a stainless steel plate or an aluminum plate or an aluminum alloy plate. The polymer material layer 11 can be made of a polymer material with good corrosion resistance, good weather resistance and flexibility. Exemplarily, the polymer material layer 11 can be made of a thermoplastic polyolefin TPO waterproof membrane to form the main layer 1 of the roof structure in combination with the metal substrate. It is understandable that the polymer material layer 11 can be made of a polymer material obtained through commercial channels that meets the above-mentioned performance requirements.

[0042] In some embodiments of the present application, reference Figure 4 As shown, the polymer material layer 11 extends from the overlapping portion 3 along the first direction X1 away from the main body area to form a flexible overlapping edge 4. Figure 3 As shown, the polymer material layer 11 extends from the overlap portion 3 along the second direction X2 away from the main body area to form a flexible overlap edge 4. That is, after the polymer material layer 11 covers the metal substrate, the overlap portion on one side of the two opposite sides along the first direction X1 or the second direction X2 extends away from the main body area to form a flexible overlap edge 4. Or as Figure 4 As shown, the overlapping portion on one side along the first direction X1 and the second direction X2 extends away from the main body area to form flexible overlapping edges in two directions.

[0043] In some embodiments of the present application, the aerogel insulation layer 2 is bonded to the side of the metal substrate 10 away from the polymer material layer 11. That is, the aerogel insulation layer 2 is bonded to the main layer of the roof structure.

[0044] In some embodiments of the present application, Figure 1 and 2 As shown, the aerogel insulation layer 2 is arranged on the first side of the main layer 1 of the roof structure, and the first side is the side where the metal substrate 10 and the aerogel insulation layer 2 are connected in the main layer 1 of the roof structure.

[0045] In some embodiments of the present application, the aerogel insulation layer 2 is bonded to the side of the metal substrate 10 away from the polymer material layer 11 using a hot melt pressure sensitive adhesive, and is composited with the main layer of the roof structure containing the polymer material layer. The hot melt pressure sensitive adhesive forms a hot melt pressure sensitive adhesive layer 12. It can be understood that the aerogel insulation layer 2 can be mixed with the hot melt pressure sensitive adhesive and coated on the first side of the main layer 1 of the roof structure, and directly bonded to the metal substrate 10, without the need to set a separate hot melt pressure sensitive adhesive layer.

[0046] The roof thermal insulation waterproof board of the embodiment of the present application integrates the aerogel with the waterproof board in the form of a coating, and the thermal insulation performance of the entire roof thermal insulation waterproof board is more uniform and comprehensive. Figure 1 and 2 As shown, the aerogel insulation layer 2 is arranged on the lower layer of the main layer 1 of the roof structure, so that the roof insulation waterproof board can be insulated indoors. The aerogel coating can be a commercially available aerogel coating with a thermal insulation effect. For example, the aerogel coating with the product model YTAC-001-A can be selected.

[0047] In the embodiment of the present application, the aerogel coating is formed by compounding aerogel powder and an inorganic binder system, and the viscosity is adjusted to 90Pa·s to 160Pa·s, and is bonded to the main layer of the roof structure in the factory to form a whole, so as to serve as a roof thermal insulation and waterproof board. Alternatively, the roof thermal insulation and waterproof board is pressed into a roof thermal insulation and waterproof board having a single or simultaneous press part, an overlap part, and a clamping part by a tile press.

[0048] In some embodiments of the present application, the first surface of the roof insulation waterproof board protrudes toward the second surface to form a snap-fit ​​portion 7, and the snap-fit ​​portion 7 is adapted to the shape of the support member of the installation structure, so as to be connected with the support member 8 supporting and installing the roof insulation waterproof board through the snap-fit ​​portion 7, so as to facilitate installation. Figure 5 As shown, the engaging portion 7 is extended along the second direction X2 and arranged on the roof thermal insulation and waterproofing board, and can be arranged at intervals along the first direction X1.

[0049] In some embodiments of the present application, the distance that the snap-fitting portion 7 protrudes from the first surface to the second surface of the roof insulation waterproof board is smaller than the distance that the profiled portion 5 protrudes from the first surface to the second surface of the roof insulation waterproof board, so that the roof insulation waterproof board can be quickly connected to the support member 8 through the snap-fitting portion 7 without affecting the structural strength of the roof insulation waterproof board to the profiled portion 5.

[0050] The thermal insulation and waterproofing board of the embodiment of the present application only needs to compound the main layer of the roof structure and the aerogel insulation layer into an integral board and then form it, install the thermal insulation and waterproofing board on the support, overlap the overlapping parts of the thermal insulation and waterproofing board to form a roof structure, and then weld the flexible overlapping edge and the polymer material layer of the thermal insulation and waterproofing board into an integrated waterproofing layer structure to improve the sealing and waterproofing performance, and at the same time have the function of steam isolation, saving installation steps, shortening the construction period, saving installation costs, and making the installation speed of the thermal insulation and waterproofing board faster. There is no need to install the wire mesh and insulation layer separately layer by layer, nor is there a need to set an anti-corrosion film on the plastic steel tiles formed on the main layer of the roof structure.

[0051] In the second aspect, the present application provides a roof structure, comprising: more than two roof insulation and waterproof boards, the roof insulation and waterproof boards are arranged in an array along the first direction X1 and along the second direction X2; the flexible overlap edge 4 of one of the two adjacent roof insulation and waterproof boards is flexibly and sealedly connected to the overlap portion 3 of the other. That is, the flexible overlap edge 4 overlaps the upper part of the overlap portion 3 and is integrated with the polymer material layer 11 on the overlap portion 3 by hot melt welding.

[0052] In some embodiments of the present application, Figure 2 As shown, the roof structure also includes a support member 8 arranged at the lower part of the roof insulation and waterproofing board.

[0053] In some embodiments of the present application, the profiled portion of the roof insulation waterproofing board is arranged at an angle with the support member along its own extension direction. The profiled portion 5 can form an angle of 45°, 60°, 75°, or 90° with the support member 8. For example, Figure 5 As shown, the profiled portion 5 is parallel to the connecting portion 6, the profiled portion 5 and the engaging portion 7 are perpendicular to each other, and the support member 8 can be engaged in the engaging portion 7 to support the roof thermal insulation and waterproof board. Then, a 90° angle is formed between the profiled portion 5 and the support member 8 arranged at the lower part of the engaging portion 7, so as to utilize the angle structure between the profiled portion and the support member of the roof thermal insulation and waterproof board to enhance the connection strength of the roof panel.

[0054] In the embodiments of the present application, the locations where screws are used when installing the roof insulation waterproof board, or the locations where the roof insulation waterproof board is not tightly sealed, can be repaired and welded using waterproof membranes of the same material as the polymer material layer or that can be tightly bonded, so as to enhance the sealing of the entire roof structure.

[0055] Example

[0056] A roof insulation waterproof board, comprising a main body area and a snap-fit ​​connection area distributed along the periphery of the main body area, the roof insulation waterproof board comprises: a main layer 1 of a roof structure, such as Figure 3 As shown, the main layer 1 of the roof structure includes a metal substrate 10 and a polymer material layer 11 which are stacked in sequence. The metal substrate 10 is a stainless steel plate, and the polymer material layer 11 is a thermoplastic polyolefin TPO waterproof membrane.

[0057] The roof insulation and waterproof board also includes an aerogel insulation layer 2, which is bonded to the side of the metal substrate 10 away from the polymer material layer 11 by hot-melt pressure-sensitive adhesive, and is composited with the main layer 1 of the roof structure containing the polymer material layer to form an integrated structural board. The integrated structural board includes a plurality of profiled parts 5 extending along the first direction X1 and spaced by the connecting part 6 in the second direction X2, and the profiled parts 5 are formed by the first surface of the integrated structural board protruding toward the second surface. Among them, the main area is the area formed by the profiled part 5 and the connecting part extending along the first direction X1, and the snap-fit ​​connection area includes a first overlap part 31 and a second overlap part 32 located on both sides of the main area along the second direction X2, and the second overlap part 32 includes the overlap part 3 and a flexible overlap edge 4 extending from the overlap part 3 away from the main area in the second direction X2, and the first overlap part 31 only includes the overlap part 3, and the overlap part 3 is formed by the first surface of the roof insulation and waterproof board protruding toward the second surface. The first surface refers to the surface of the aerogel insulation layer 2 on the side away from the main layer 1 of the roof structure, and the second surface refers to the surface of the main layer 1 of the roof structure on the side away from the aerogel insulation layer 2.

[0058] The roof insulation and waterproof panels described in the multiple embodiments are distributed in an array along the first direction X1 and the second direction X2. Among the two adjacent roof insulation and waterproof panels along the second direction X2, the overlapping portion 3 of one is engaged in the overlapping portion 3 of the other along the second direction X2, and is flexibly sealed and connected to the polymer material layer 11 of the overlapping portion 3 of the other roof insulation and waterproof panel through a flexible overlapping edge 4 formed by the overlapping portion 3 extending away from the main area along the second direction X2 to form an integral waterproof structural layer, so that the two roof insulation and waterproof structural panels are sealed and connected.

[0059] The above is only a specific implementation method of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application.

Claims

1. A roof insulation waterproof board, characterized in that: The thermal insulation and waterproof roofing board comprises a main body area and a snap-fit ​​connection area distributed along the periphery of the main body area. Main layer of roof structure (1), an aerogel thermal insulation layer (2), the aerogel thermal insulation layer (2) and the main layer (1) of the roof structure being combined into an integrated structural plate, the integrated structural plate comprising a plurality of profiled portions (5) extending in a first direction and spaced apart by connecting portions (6) in a second direction, the profiled portions (5) being formed by protruding from a first surface of the integrated structural plate toward a second surface; Wherein, the snap-fit ​​connection area comprises overlapping portions (3) located on both sides of the main body area along the first direction and / or the second direction.

2. The roof insulation waterproofing board according to claim 1, characterized in that: The snap-fit ​​connection area comprises a first overlapping portion (31) and a second overlapping portion (32) located on both sides of the main body area along the second direction, wherein at least the second overlapping portion (32) comprises the overlapping portion (3) and a flexible overlapping edge (4) extending from the overlapping portion (3) away from the main body area in the second direction.

3. The roof insulation waterproof board according to claim 1, characterized in that: The snap-fit ​​connection area comprises a first overlapping portion (31) and a second overlapping portion (32) located on both sides of the main body area along a first direction, wherein at least the second overlapping portion (32) comprises the overlapping portion (3) and a flexible overlapping edge (4) extending from the overlapping portion (3) away from the main body area in the first direction.

4. The roof insulation waterproofing board according to claim 1, characterized in that: The overlapping portion (3) is formed by protruding from the first surface of the roof thermal insulation and waterproof board toward the second surface.

5. The roof insulation waterproofing board according to claim 1, characterized in that: The roof structure main body layer (1) comprises a metal substrate (10) and a polymer material layer (11) which are stacked in sequence.

6. The roof insulation waterproofing board according to claim 5, characterized in that: The aerogel thermal insulation layer (2) is arranged on a side of the metal substrate (10) facing away from the polymer material layer (11).

7. The roof insulation waterproofing board according to any one of claims 1 to 6, characterized in that: The first surface of the roof thermal insulation and waterproof board protrudes toward the second surface to form a clamping portion (7).

8. The roof insulation waterproofing board according to claim 7, characterized in that: The distance that the engaging portion (7) protrudes from the first surface to the second surface of the roof thermal insulation waterproof board is smaller than the distance that the profiled portion (5) protrudes from the first surface to the second surface of the roof thermal insulation waterproof board.

9. A roof structure, characterized in that: include: Two or more roof thermal insulation and waterproof panels as described in any one of claims 1 to 8, wherein the roof thermal insulation and waterproof panels are distributed in an array along a first direction and along a second direction; the flexible overlapping edge (4) of one of the two adjacent roof thermal insulation and waterproof panels is flexibly and sealedly connected to the overlapping portion (3) of the other.

10. The roof structure according to claim 9, characterized in that: Also includes: Support members (8) are arranged at intervals at the lower part of the roof thermal insulation and waterproofing board.

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