Roof assembly

Abstract

The embodiment of the utility model provides a roof assembly, and the roof assembly comprises a roof purline which extends along a first direction; the wall surface purline is arranged on the wall column of the parapet wall and is parallel to the roof purline, and the wall column of the parapet wall extends in the second direction perpendicular to the first direction; one side, in the third direction, of the gutter piece is connected with the roof purline, and the other side, in the third direction, of the gutter piece is connected with the wall purline; wherein the gutter piece is formed by bending a composite plate, the composite plate comprises a first metal plate and a first waterproof layer which are arranged in a stacked mode, and the third direction is perpendicular to the first direction and the second direction; the roof panel is connected to the top flange of the roof purline, and the roof panel is in sealed connection with the first waterproof layer. According to the technical scheme, the sealing performance between the roof panel and the gutter piece can be guaranteed, gaps between the gutter piece and the roof panel are avoided, and therefore rainwater can be prevented from flowing into a room through the gaps between the gutter piece and the roof panel.

Description

Technical Field

[0001] The present application relates to the field of building technology, and in particular to a roofing assembly. Background Art

[0002] Gutters are a very important part of building roofs. In roofs with organized drainage, gutters are used to collect rainwater from the roof and collect it to the downspouts, and finally drain the rainwater from the roof through the downspouts and downpipes. In related technologies, there is a gap between the gutter and the roof panel. Once the gutter is full of water, rainwater will flow into the room through the gap between the gutter and the roof panel. Utility Model Content

[0003] The embodiments of the present application provide a roofing assembly to solve or alleviate one or more technical problems in the prior art.

[0004] As one aspect of an embodiment of the present application, an embodiment of the present application provides a roof assembly, including: a roof purlin, extending along a first direction; a wall purlin, arranged on a wall column of a parapet and parallel to the roof purlin, the wall column of the parapet extending along a second direction perpendicular to the first direction; a gutter member, the gutter member is connected to the roof purlin on one side in a third direction, and the gutter member is connected to the wall purlin on the other side in the third direction; wherein the gutter member is formed by bending a composite plate, the composite plate includes a first metal plate and a first waterproof layer that are stacked, and the third direction is perpendicular to the first direction and to the second direction; a roof panel, connected to the upper flange of the roof purlin, and the roof panel is sealed to the first waterproof layer.

[0005] In one embodiment, the roof panel includes a second metal plate and a second waterproof layer, the second waterproof layer is located on a side of the second metal plate away from the roof purlin, and the second waterproof layer is sealed and connected to the first waterproof layer.

[0006] In one embodiment, the gutter members are multiple and spaced apart in the first direction; wherein the first waterproof layers of two adjacent gutter members are sealed and connected.

[0007] In one embodiment, the roof assembly further includes: a sealing connection layer connected to the first waterproof layers of two adjacent gutter members so that the first waterproof layers of the two adjacent gutter members are sealed and connected, and the sealing connection layer covers the gap between the two adjacent gutter members.

[0008] In one embodiment, the thickness of the first metal plate is 1.2 mm to 3 mm, and the thickness of the first waterproof layer is 0.2 mm to 2.0 mm.

[0009] In one embodiment, the gutter member includes a gutter body, a first overlapping portion and a second overlapping portion, the gutter body defines a groove, and two edges of the gutter body arranged opposite to each other in a third direction are respectively a first edge and a second edge, the first overlapping portion is connected to the first edge and connected to the roof purlin, and the second overlapping portion is connected to the second edge and connected to the wall purlin; the roof assembly also includes a main structure, and the bottom surface of the gutter body overlaps the main structure.

[0010] In one embodiment, the main structure includes a metal beam and a leveling support, the leveling support is fixedly connected to the metal beam, the top surface of the leveling support is parallel to the horizontal plane, and the bottom surface of the gutter body overlaps the leveling support.

[0011] In one embodiment, a dimension of an overlapping area between the gutter body and the leveling support in the first direction is greater than or equal to 100 mm.

[0012] In one embodiment, the gutter body is connected to the leveling support through a first fastener; the roof assembly further includes a sealing connection layer, which is connected to the first waterproof layers of two adjacent gutter members, and the sealing connection layer covers the first fastener.

[0013] In one embodiment, the gutter member is connected to the roof purlin through a plurality of second fasteners, and the plurality of second fasteners are divided into a plurality of first fastening groups arranged at intervals along a first direction; the gutter member is connected to the wall purlin through a plurality of third fasteners, and the plurality of third fasteners are divided into a plurality of second fastening groups arranged at intervals along the first direction; wherein the distance between two adjacent first fastening groups and the distance between two adjacent second fastening groups are both 500 mm to 2000 mm.

[0014] The embodiment of the present application adopts the above technical solution to ensure the sealing performance between the roof panel and the gutter member, avoid the existence of gaps between the gutter member and the roof panel, and thus prevent rainwater from flowing into the room through the gap between the gutter member and the roof panel.

[0015] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0017] Figure 1A schematic diagram showing a three-dimensional structure of a roof assembly according to an embodiment of the present application is shown;

[0018] Figure 2 A front view of a roofing assembly according to an embodiment of the present application is shown;

[0019] Figure 3 A cross-sectional schematic diagram showing a gutter member of a roof assembly according to an embodiment of the present application;

[0020] Figure 4 A top view of a roofing assembly according to an embodiment of the present application is shown.

[0021] Description of reference numerals:

[0022] 10: roof assembly; 100: roof purlin; 200: wall purlin; 300: gutter member; 310: gutter body; 311: groove; 320: first overlap; 330: second overlap; 340: first metal plate; 350: first waterproof layer; 400: wall column; 500: sealing connection layer; 600: roof panel; 700: main structure; 710: metal beam; 720: leveling support; 800: first fastener. DETAILED DESCRIPTION

[0023] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0024] Roof drainage is divided into organized drainage and unorganized drainage (free drainage). Organized drainage refers to collecting rainwater into gutters and then discharging it through downpipes. Among them, gutters refer to grooves used to collect rainwater, which can be divided into internal gutters and external gutters. Internal gutters refer to gutters located inside the exterior wall of the building, usually protected by parapets. External gutters refer to gutters that protrude from the exterior wall of the building, generally without the protection of parapets. Unorganized drainage (free drainage) means that rainwater flows directly from the roof without passing through gutters and downpipes. This drainage method is suitable for buildings without gutters or downpipes, or in specific circumstances, such as small roofs, low rainfall areas, etc.

[0025] At present, gutters are usually made of 1.2mm to 2.0mm thick stainless steel, which has a high material cost. The construction process of gutters is complicated, including the installation of gutter brackets, gutter placement, gutter welding, expansion joint production, etc., with high construction costs and difficult maintenance. In addition, the gap between the gutter and the roof panel has become a major hidden danger of water leakage. When the gutter is full of water, rainwater will flow into the room through the gap.

[0026] In order to solve the above problems, the present application provides a roofing assembly. Figure 1-Figure 4 A roofing assembly according to an embodiment of the present application is described.

[0027] Figure 1 A schematic diagram showing a three-dimensional structure of a roof assembly according to an embodiment of the present application is shown; Figure 2 A front view of a roofing assembly according to an embodiment of the present application is shown; Figure 3 FIG. 2 is a cross-sectional schematic diagram of a gutter member of a roof assembly according to an embodiment of the present application. Figure 1-Figure 3 As shown, the roof assembly 10 includes a roof purlin 100, a wall purlin 200, a gutter member 300 and a roof panel 600. The gutter member 300 may be an inner gutter.

[0028] Specifically, the roof purlin 100 extends along a first direction. The wall purlin 200 is arranged on the wall column 400 of the parapet, and the wall purlin 200 is parallel to the roof purlin 100, and the wall column 400 of the parapet extends along a second direction perpendicular to the first direction. The gutter member 300 is connected to the roof purlin 100 on one side in the third direction, and the gutter member 300 is connected to the wall purlin 200 on the other side in the third direction; wherein the gutter member 300 is formed by bending a composite plate, and the composite plate includes a first metal plate 340 and a first waterproof layer 350 stacked, and the third direction is perpendicular to the first direction and perpendicular to the second direction. The roof panel 600 is connected to the upper flange of the roof purlin 100, and the roof panel 600 is sealed and connected to the first waterproof layer 350.

[0029] It should be noted that "sealed connection" can be understood as a connection that can achieve a sealing effect. Exemplarily, the sealed connection can be a rubber seal, a welding seal, a fusion seal, and an adhesive seal. Among them, the rubber seal refers to the use of materials such as rubber strips or rubber sealants to form a sealing layer between the roof panel 600 and the first waterproof layer 350. Welding sealing refers to melting and thermally fusing the surfaces of the roof panel 600 and the first waterproof layer 350 to form an integrated connection between the roof panel 600 and the first waterproof layer 350, thereby achieving a sealing effect. Welding sealing refers to melting the surfaces of the roof panel 600 and the first waterproof layer 350, and making the surfaces of the roof panel 600 and the first waterproof layer 350 contact each other in a molten state, and forming an integrated connection after cooling to achieve a sealing effect. Adhesive sealing refers to using an adhesive or glue to bond the roof panel 600 and the first waterproof layer 350 together.

[0030] Exemplarily, the second direction is Figure 2 The up and down directions in the third direction are Figure 2The gutter member 300 can be formed into a "U" shaped structure. The extension direction of the gutter member 300 can be the same as the extension direction of the roof purlin 100. Among them, the composite plate used to form the gutter member 300 can be pre-processed in the factory, which can reduce the material consumption of the gutter member 300. For example, during processing, the first metal plate 340 and the first waterproof layer 350 can be compounded by a film at a preset temperature and a preset pressure to ensure the bonding quality of the first metal plate 340 and the first waterproof layer 350. Since the first metal plate 340 has an effective anti-corrosion performance and the first waterproof layer 350 has an effective waterproof performance, the composite plate can achieve anti-corrosion and waterproof integration. The composite plate can be processed by a bending device or a rolling device to form the gutter member 300.

[0031] Exemplarily, the first metal plate 340 can be a galvanized steel plate, and the first waterproof layer 350 can be a thermoplastic polyolefin waterproof membrane, for example, it can be a new type of waterproof membrane made of a thermoplastic polyolefin (TPO) synthetic resin that uses polymerization technology to combine ethylene propylene rubber and polypropylene as the base material, with the addition of antioxidants, anti-aging agents, and softeners. Polyester fiber mesh cloth can be used as the internal reinforcement material to make an enhanced waterproof membrane, which is a synthetic polymer waterproof membrane waterproof product.

[0032] According to the roofing assembly 10 of the embodiment of the present application, the gutter member 300 is formed by bending a composite plate, and the composite plate includes a first metal plate 340 and a first waterproof layer 350 which are stacked, and the roof panel 600 is sealed and connected to the first waterproof layer 350. This ensures the sealing performance between the roof panel 600 and the gutter member 300, avoids the presence of a gap between the gutter member 300 and the roof panel 600, and prevents rainwater from flowing into the room through the gap between the gutter member 300 and the roof panel 600.

[0033] In one embodiment, the roof panel 600 may include a second metal plate and a second waterproof layer. The second waterproof layer is located on a side of the second metal plate away from the roof purlin 100 , and the second waterproof layer is sealed and connected to the first waterproof layer 350 .

[0034] Exemplarily, the roof panel 600 may include a plurality of spliced ​​roofing composite panels. During processing, the second metal plate and the second waterproof layer may be composited by a film at a preset temperature and a preset pressure. Since the second metal plate has effective anti-corrosion performance and the second waterproof layer has effective waterproof performance, the roofing composite panel may achieve anti-corrosion and waterproof integration. The material of the second metal plate may be the same as that of the first metal plate 340, for example, a galvanized steel plate, and the material of the second waterproof layer may be the same as that of the first waterproof layer 350, for example, a thermoplastic polyolefin waterproofing membrane.

[0035] Exemplarily, the second waterproof layer and the first waterproof layer 350 can be sealed and connected by hot air welding, that is, by blowing hot air or hot wind into the welding area, the second waterproof layer and the first waterproof layer 350 are heated and softened, and the second waterproof layer and the first waterproof layer 350 are connected together under appropriate pressure.

[0036] In this embodiment, by making the roof panel 600 include a second metal plate and a second waterproof layer and making the second waterproof layer sealed and connected to the first waterproof layer 350, the first waterproof layer 350 and the second waterproof layer can be integrated while achieving the anti-corrosion and waterproof properties of the roof panel 600, further avoiding the presence of a gap between the gutter member 300 and the roof panel 600, thereby avoiding the risk of water leakage, and easy to repair. When a leak occurs between the first waterproof layer 350 and the first waterproof layer 350, the leak can be sealed by welding.

[0037] In one embodiment, in combination Figure 1 , the gutter members 300 are arranged in a plurality of intervals in the first direction; wherein the first waterproof layers 350 of two adjacent gutter members 300 are sealed and connected. For example, the first waterproof layers 350 of two adjacent gutter members 300 can be hot-air welded. Thus, since the first waterproof layer 350 is a flexible layer, by sealing and connecting the first waterproof layers 350 of two adjacent gutter members 300, the first waterproof layer 350 can absorb the expansion and contraction deformation of the gutter members 300, and there is no need to set an expansion joint, thereby avoiding water leakage at the expansion joint position, and further improving the waterproof performance of the roofing assembly 10.

[0038] Figure 4 FIG. 1 shows a top view of a roofing assembly 10 according to an embodiment of the present application. In one embodiment, as shown in FIG. Figure 1 and Figure 4 As shown, the roofing assembly 10 may further include a sealing connection layer 500, which is connected to the first waterproof layer 350 of two adjacent gutter members 300 so that the first waterproof layer 350 of the two adjacent gutter members 300 are sealed and connected. The sealing connection layer 500 covers the gap between the two adjacent gutter members 300, effectively preventing water leakage in the gap between the two adjacent gutter members 300.

[0039] Exemplarily, the material of the sealing connection layer 500 can be the same as that of the first waterproof layer 350, for example, it can be a thermoplastic polyolefin waterproof roll. The sealing connection layer 500 can include a first part, a second part and a third part. The first part is sealed and connected to the first waterproof layer 350 of one of the two adjacent gutter members 300, the second part is sealed and connected to the first waterproof layer 350 of the other of the two adjacent gutter members 300, and the third part is connected between the first part and the second part, and covers the gap between the two adjacent gutter members 300.

[0040] Optionally, the dimension of the sealing connection layer 500 in the first direction may be 230 mm to 270 mm (including the endpoint values), such as 250 mm; the width of the gap A between two adjacent gutter members 300 may be 5 mm to 30 mm (including the endpoint values), such as 15 mm, but is not limited thereto.

[0041] In one embodiment, the thickness of the first metal plate 340 may be 1.2 mm to 3 mm (inclusive), and the thickness of the first waterproof layer 350 may be 0.2 mm to 2.0 mm (inclusive). For example, the thickness of the first metal plate 340 may be 2.5 mm, and the thickness of the second metal plate may be 1.8 mm.

[0042] In this embodiment, the first metal plate 340 is relatively thick and has sufficient rigidity and strength to bear and support its own weight. Compared with the prior art, there is no need to install a gutter bracket, which can simplify the construction process, reduce construction costs, increase construction speed, shorten construction period, and the structural force transmission of the gutter member 300 is clear and the force is more reasonable.

[0043] In one embodiment, in combination Figure 1 and Figure 2 The gutter member 300 may include a gutter body 310, a first overlap portion 320 and a second overlap portion 330. The gutter body 310 defines a groove 311. Two edges of the gutter body 310 that are arranged opposite to each other in the third direction are respectively a first edge and a second edge. The first overlap portion 320 is connected to the first edge and connected to the roof purlin 100. The second overlap portion 330 is connected to the second edge and connected to the wall purlin 200. The roof assembly 10 also includes a main structure 700. The bottom surface of the gutter body 310 overlaps the main structure 700.

[0044] Exemplarily, the gutter body 310 may include a bottom plate and a first side plate and a second side plate arranged opposite to each other. The bottom surface of the bottom plate is overlapped with the main structure 700, and the bottom plate is parallel to the horizontal plane. The first side plate and the second side plate are respectively connected to the two side edges of the bottom plate in the third direction, and each of the first side plate and the second side plate is perpendicular to the bottom plate. The edge of the first side plate away from the bottom plate is the first edge, and the edge of the second side plate away from the bottom plate is the second edge.

[0045] In this embodiment, by overlapping the bottom surface of the gutter body 310 with the main structure 700, the main structure 700 can provide support for the gutter member 300, thereby making the structure of the gutter member 300 more stable.

[0046] In one embodiment, Figure 2As shown, the main structure 700 may include a metal beam 710 and a leveling support 720, the leveling support 720 is fixedly connected to the metal beam 710, the top surface of the leveling support 720 is parallel to the horizontal plane, and the bottom surface of the gutter body 310 is overlapped with the leveling support 720, so that the leveling support 720 can provide a plane support for the gutter member 300. Exemplarily, the leveling support 720 can be processed and completed at the same time as the metal beam 710 in the factory, and welded to the metal beam 710. Among them, the metal beam 710 can be a steel beam. An anti-cold bridge gasket can be set between the gutter member 300 and the leveling support 720 as needed. Exemplarily, the center spacing of adjacent metal beams 710 is the sum of the length of each gutter member 300 and the gap width between two adjacent gutter members 300. Each gutter member 300 is hoisted as a whole, and the installation method is similar to the roof purlin 100. The gutter members 300 can be connected by butt jointing, with a 15 mm gap reserved at the butt joint position to adjust for deviations during material processing and installation.

[0047] In one embodiment, the dimension of the overlapped area between the gutter body 310 and the leveling support 720 in the first direction is greater than or equal to 100 mm. In this way, the dimension of the overlapped area between the gutter body 310 and the leveling support 720 in the first direction is large, which helps to improve the stability of the entire roof assembly 10, and improves the overall durability and weather resistance of the roof assembly 10.

[0048] In one embodiment, Figure 1 and Figure 4 As shown, the gutter body 310 is connected to the leveling support 720 through the first fastener 800. The roof assembly 10 may further include a sealing connection layer 500, which is connected to the first waterproof layer 350 of two adjacent gutter members 300, and the sealing connection layer 500 covers the first fastener 800. Exemplarily, the first fastener 800 may be a self-tapping screw.

[0049] In this embodiment, the gutter body 310 is connected to the leveling support 720 through the first fastener 800, without welding, and the installation method is simple, and the first fastener 800 can be used to bear the horizontal load of the gutter member 300, thereby improving the wind resistance of the roof assembly 10. In addition, by covering the first fastener 800 with the sealing connection layer 500, water leakage due to rust of the first fastener 800 can be avoided, and at the same time, it can play an effective dustproof role.

[0050] In one embodiment, the gutter member 300 is connected to the roof purlin 100 through a plurality of second fasteners, and the plurality of second fasteners are divided into a plurality of first fastening groups spaced apart along a first direction; the gutter member 300 is connected to the wall purlin 200 through a plurality of third fasteners, and the plurality of third fasteners are divided into a plurality of second fastening groups spaced apart along a first direction; wherein the distance between two adjacent first fastening groups and the distance between two adjacent second fastening groups are both 500 mm to 2000 mm (including the end point values). In the description of this application, "plurality" means two or more.

[0051] Each first fastening group includes at least one second fastener (such as two), and each second fastening group includes at least one third fastener (such as two). Exemplarily, the distance between two adjacent first fastening groups may be 1000 mm; the distance between two adjacent second fastening groups may be 1000 mm.

[0052] It should be noted that the distance between two adjacent first fastening groups and the distance between two adjacent second fastening groups can be the same or different, as long as the distance between two adjacent first fastening groups and the distance between two adjacent second fastening groups are 500 mm to 2000 mm.

[0053] In this embodiment, the gutter member 300 and the roof purlin 100 can be connected once at a distance of 500mm to 2000mm, and the gutter member 300 and the wall purlin 200 can be connected once at a distance of 500mm to 2000mm, which can effectively improve the stress stability of the roof purlin 100, the wall purlin 200 and the gutter member 300.

[0054] The other components of the roofing assembly 10 of the above embodiment may adopt various technical solutions known to ordinary technicians in the field now and in the future, and will not be described in detail here.

[0055] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0056] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0057] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0058] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0059] The disclosure above provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numerals and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0060] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A roofing assembly, characterized in that: include: a roof purlin extending along a first direction; A wall purlin is arranged on a wall column of the parapet wall and is parallel to the roof purlin, and the wall column of the parapet wall extends along a second direction perpendicular to the first direction; A gutter member, wherein one side of the gutter member in the third direction is connected to the roof purlin, and the other side of the gutter member in the third direction is connected to the wall purlin; wherein the gutter member is formed by bending a composite plate, and the composite plate includes a first metal plate and a first waterproof layer which are stacked, and the third direction is perpendicular to the first direction and perpendicular to the second direction; A roof panel is connected to the upper flange of the roof purlin, and the roof panel is sealed and connected to the first waterproof layer.

2. The roofing assembly according to claim 1, characterized in that The roof panel includes a second metal plate and a second waterproof layer, wherein the second waterproof layer is located on a side of the second metal plate away from the roof purlin, and the second waterproof layer is sealed and connected to the first waterproof layer.

3. The roofing assembly according to claim 1, characterized in that The gutter members are multiple and spaced apart in the first direction; wherein the first waterproof layers of two adjacent gutter members are sealed and connected.

4. The roofing assembly according to claim 3, characterized in that Also includes: The sealing connection layer is connected to the first waterproof layers of two adjacent gutter members so that the first waterproof layers of the two adjacent gutter members are sealed and connected, and the sealing connection layer covers the gap between the two adjacent gutter members.

5. The roofing assembly according to claim 1, characterized in that The thickness of the first metal plate is 1.2 mm to 3 mm, and the thickness of the first waterproof layer is 0.2 mm to 2.0 mm.

6. The roofing assembly according to claim 1, characterized in that The gutter member comprises a gutter body, a first overlapping portion and a second overlapping portion, the gutter body defines a groove, two edges of the gutter body arranged opposite to each other in the third direction are respectively a first edge and a second edge, the first overlapping portion is connected to the first edge and connected to the roof purlin, and the second overlapping portion is connected to the second edge and connected to the wall purlin; The roof assembly also includes a main structure, and the bottom surface of the gutter body is overlapped with the main structure.

7. The roofing assembly according to claim 6, characterized in that The main structure comprises a metal beam and a leveling support, wherein the leveling support is fixedly connected to the metal beam, the top surface of the leveling support is parallel to the horizontal plane, and the bottom surface of the gutter body is overlapped with the leveling support.

8. The roofing assembly according to claim 7, characterized in that The dimension of the overlapping area between the gutter body and the leveling support in the first direction is greater than or equal to 100 mm.

9. The roofing assembly according to claim 7, characterized in that The gutter body is connected to the leveling support through a first fastener; the roof assembly also includes a sealing connection layer, which is connected to the first waterproof layers of two adjacent gutter components, and the sealing connection layer covers the first fastener.

10. The roofing assembly according to any one of claims 1 to 9, characterized in that: The gutter member is connected to the roof purlin via a plurality of second fasteners, and the plurality of second fasteners are divided into a plurality of first fastening groups arranged at intervals along the first direction; The gutter member is connected to the wall purlin via a plurality of third fasteners, and the plurality of third fasteners are divided into a plurality of second fastening groups spaced apart along the first direction; wherein the distance between two adjacent first fastening groups and the distance between two adjacent second fastening groups are both 500 mm to 2000 mm.

Images