Waterproof connecting structure of metal roof

Abstract

The utility model discloses a waterproof connecting structure for a metal roof, and relates to the technical field of constructional engineering. Comprising roof purlines; the roof purline is sequentially provided with a lower layer metal roof inner plate, a vapor barrier film, a connecting support, a heat preservation rock wool plate, a waterproof roll, a sliding support and an upper layer metal roof outer plate in the height direction. The connecting support is provided with a first end used for being connected with the upper surface of the vapor barrier film and a second end used for being connected with the upper surface of the heat preservation rock wool board. A purline structure nail penetrates through the first end of the connecting support to connect the vapor-proof film and the lower-layer metal roof inner plate to the roof purline; the sliding support is provided with a fixed end connected with the second end of the connecting support and a connecting end extending in the vertical direction. A support structure nail penetrates through the fixed end of the sliding support to connect the waterproof roll to the position above the second end of the connecting support; the connecting ends can be connected between every two adjacent upper-layer metal roof outer plates to form a lock seam so that the upper-layer metal roof outer plates can be connected to the upper portion of the waterproof roll.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, and specifically relates to a waterproof connection structure for metal roofs. Background Technology

[0002] Currently, there are two common implementation methods for the connection structure of double-layer metal roof panels in buildings. The first method is to lay the outer roof panel and the inner roof panel on the upper and lower sides of the roof purlins. The second method is to lay the outer roof panel and the inner roof panel on the upper and lower sides of the layer purlins on the roof, respectively.

[0003] The first implementation method requires continuous use of a lifting frame, increasing installation difficulty during construction. The second implementation method requires double-layer roof purlins, which not only increases space requirements but also reduces the thickness of the insulation layer due to the height limitation of the secondary purlins. This is detrimental to the safety performance and overall insulation performance of the double-layer metal roof panels, and in severe cases, can easily lead to thermal bridging in the roof system. Moreover, in the actual installation process of both implementation methods, the insulation rock wool boards need to be spliced. In the existing methods, the insulation rock wool boards are connected by connectors during the splicing process. The connectors need to be inserted inside the insulation rock wool boards. Therefore, the installers need to cut holes in the insulation rock wool boards on-site to install the connectors. This makes it impossible to accurately position the connectors in the correct position on the insulation rock wool boards for quick cutting, resulting in decreased work efficiency. In addition, manual on-site cutting can also lead to inaccurate dimensions, making it impossible for the connectors to fit tightly with the insulation rock wool boards. Utility Model Content

[0004] This utility model provides a waterproof connection structure for metal roofs to solve the problems of existing double-layer metal roof panel connection structures, which require the installation of double-layer roof purlins, resulting in limited insulation layer height. Furthermore, existing double-layer metal roof panel connection structures require on-site cutting of the insulation rock wool board during splicing to install connectors. This cutting process is time-consuming and often results in inaccurate cutting positions and dimensions, leading to reduced work efficiency and installation accuracy.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A waterproof connection structure for a metal roof includes roof purlins; the roof purlins are provided with a lower metal roof inner panel, a vapor barrier, a connecting support, a thermal insulation rock wool board, a waterproof membrane, a sliding support, and an upper metal roof outer panel in sequence along the height direction;

[0007] Multiple connecting supports connect two spliced ​​thermal insulation rock wool boards. Each connecting support has a first end for connecting the upper surface of the vapor barrier membrane and a second end for connecting the upper surface of the thermal insulation rock wool board. The vapor barrier membrane is connected to the lower metal roof inner panel to the roof purlin by purlin structural nails passing through the first end of the connecting supports.

[0008] The sliding support has a fixed end that connects to the second end of the connecting support and a connecting end that extends in a vertical direction; the waterproof membrane is connected to the second end of the connecting support by means of a support structure nail passing through the fixed end of the sliding support; the connecting end can be connected between two adjacent upper metal roof panels to form a lock joint to connect the upper metal roof panels to the waterproof membrane.

[0009] The double-layer metal roofing structure of this utility model also has the following additional technical features:

[0010] The connecting support has a Z-shaped structure and includes an upper limb side, a standing side, and a lower limb side. The upper limb side is connected to the upper part of the standing side to form the second end of the connecting support, and the lower limb side is connected to the lower part of the standing side to form the first end of the connecting support. The upper limb side and the lower limb side are arranged parallel to each other.

[0011] The length of the vertical edge is at least 10mm greater than the thickness of the thermal insulation rock wool board, so that the second end of the connecting support can protrude from the upper surface of the thermal insulation rock wool board, so that when the waterproof membrane is spliced ​​and laid on top of the thermal insulation rock wool board, the splice position can avoid the connecting support.

[0012] The connecting support is made of galvanized steel plate with a yield strength ≥350MPa and a thickness ≥1.8mm; the width of the upper limb side is ≥48mm and the width of the lower limb side is ≥24mm; the lower limb side has multiple pre-punched holes with a diameter of 5-7mm.

[0013] The lower metal roof inner panel has a corrugated structure, so that the lower metal roof inner panel has crests and troughs spaced apart along the length direction, and the first end of the connecting support is placed in the trough surface; a plurality of the connecting supports are arranged along at least seven crests spaced apart from the lower metal roof inner panel.

[0014] The upper metal roof panel is made of steel plate with a thickness of ≥0.53mm and a strength of ≥350Mpa; or, it is made of base color steel plate with hot-dip aluminum zinc plating; or it is made of steel plate with aluminum zinc AZ150 and coated with a high-durability polyester HDP colored coating.

[0015] The lower metal roof inner panel is made of steel plate with a thickness ≥0.4mm and a strength greater than 550MPa; or a base color steel plate with hot-dip galvanized Z120 surface; or a steel plate with aluminum zinc AZ70 and coated with polyester PE color coating.

[0016] The waterproof membrane is made of TPO or PVC material; the thickness of the waterproof membrane is ≥1.2mm.

[0017] The thermal insulation rock wool board has a density ≥120K / m³ 3 .

[0018] The vapor barrier membrane is made of PE material with a thickness of ≥0.3mm.

[0019] Due to the adoption of the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0020] This application discloses a waterproof connection structure for metal roofs, including roof purlins. Along the height direction, the roof purlins are sequentially arranged a lower metal roof inner panel, a vapor barrier, connecting supports, an insulating rock wool board, a waterproof membrane, sliding supports, and an upper metal roof outer panel. This eliminates the upper purlin required in typical double-layer roof systems, saving on steel consumption and labor costs associated with on-site installation of the secondary purlins.

[0021] A lower layer of metal roofing inner panel is installed above the roof purlins. A vapor barrier membrane is laid above this inner panel. Connecting supports are installed above the vapor barrier membrane, and an insulating rock wool board is placed above the connecting supports. A waterproof membrane is laid above the rock wool board, and a sliding support is installed above the waterproof membrane, connecting the upper layer of metal roofing outer panel to the waterproof membrane. The first end of the connecting support is located above the vapor barrier membrane, and the second end is located above the insulating rock wool board. This design avoids the traditional method where the connecting support is located inside the insulating rock wool board. Therefore, when laying the insulating rock wool board, it is only necessary to embed the board between two adjacent connecting supports, eliminating the need to cut the rock wool during on-site installation and greatly accelerating the construction speed. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0023] Figure 1 This is a cross-sectional view of the upper metal roof outer panel of a metal roof waterproof connection structure according to one embodiment of the present utility model;

[0024] Figure 2This is a cross-sectional view of the lower metal roof inner panel of a metal roof waterproof connection structure according to one embodiment of the present utility model;

[0025] Figure 3 This is an isometric view of a connecting support for a waterproof connection structure for a metal roof, according to one embodiment of the present invention.

[0026] Figure 4 This is an installation diagram of a metal roof waterproof connection structure according to one embodiment of the present invention;

[0027] Figure 5 This is a cross-sectional view of a metal roof waterproof connection structure after installation, according to one embodiment of the present invention.

[0028] Figure 6 This is an isometric view of a metal roof waterproof connection structure after installation, according to one embodiment of the present invention.

[0029] In the picture,

[0030] 1. Upper metal roof outer panel; 2. Lower metal roof inner panel; 3. Connecting support; 4. Purlin structural nail; 5. Sliding support; 6. Support structural nail; 7. Waterproof membrane; 8. Thermal insulation rock wool board; 9. Vapor barrier membrane; 10. Roof purlin; 11. Upper edge; 12. Vertical edge; 13. Lower edge; 14. Corrugated surface; 15. Corrugated surface; 16. Female rib; 17. Male rib; 18. Main body; 19. Pre-punched hole. Detailed Implementation

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0032] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0036] This application relates to a waterproof connection structure for metal roofs, such as... Figure 1-6 As shown, it includes roof purlins 10; the roof purlins 10 are provided with a lower metal roof inner panel 2, a vapor barrier 9, a connecting support 3, a thermal insulation rock wool board 8, a waterproof membrane 7, a sliding support and an upper metal roof outer panel 1 in sequence along the height direction.

[0037] like Figure 5 As shown, this application features roof purlins 10, eliminating the upper purlin required in typical double-layer roofing systems, thus saving on structural steel consumption and labor costs associated with on-site installation of secondary purlins. A lower metal roof inner panel 2 is installed above the roof purlins 10. A vapor barrier membrane 9 is laid above the lower metal roof inner panel 2. A connecting support 3 is installed above the vapor barrier membrane 9. An insulating rock wool board 8 is installed above the connecting support 3. A waterproof membrane 7 is laid above the insulating rock wool board 8. A sliding support is installed above the waterproof membrane 7, allowing the upper metal roof outer panel 1 to be connected to the waterproof membrane 7 via the sliding support.

[0038] like Figure 1As shown, the upper metal roof panel 1 includes a female rib 16, a male rib 17, and a straight main body 18 located between the female rib 16 and the male rib 17. The stiffness values ​​of the female rib 16 and the male rib 17 need to be greater than the longitudinal stiffness of the upper metal roof panel 1, so as to enhance the connection strength between two adjacent upper metal roof panels 1. Because the male rib 17 and the female rib 16 are designed with hooks, in two adjacent upper metal roof panels 1, the male rib 17 of one upper metal roof panel 1 can be hooked and connected to the female rib 16 of the other upper metal roof panel 1. Then, the connected female rib 16 and male rib 17 are bent at a preset angle, thereby realizing the locking connection between two adjacent upper metal roof panels 1.

[0039] Specifically, multiple connecting supports 3 connect two spliced ​​insulating rock wool boards 8. Each connecting support 3 has a first end for connecting the upper surface of the vapor barrier membrane 9 and a second end for connecting the upper surface of the insulating rock wool board 8. In use, the first end of the connecting support 3 is located below the second end, and the first end of the connecting support 3 is positioned above the vapor barrier membrane 9. Since the lower layer of the metal roofing inner panel 2 is connected between the lower part of the vapor barrier membrane 9 and the roof purlin 10, the vapor barrier membrane 9 and the lower layer of the metal roofing inner panel 2 can be connected to the roof purlin 10 by passing the purlin structural nail 4 through the first end of the connecting support 3.

[0040] Insulating rock wool boards 8 are respectively installed on both sides of the connecting support 3. The bottom surface of the first end of the connecting support 3 is located above the vapor barrier membrane 9, and the top surface of the first end is located at the bottom of one of the two adjacent insulating rock wool boards 8. The bottom surface of the second end of the connecting support 3 is located at the top of the other insulating rock wool board 8, so the two adjacent insulating rock wool boards 8 can be assembled. The second end of the connecting support 3 can be connected to a sliding support. The sliding support has a fixed end that connects to the second end of the connecting support 3 and a connecting end that extends vertically. In use, when the connecting support 3 is installed above the vapor barrier membrane 9 and the insulating rock wool board 8 is laid, and the waterproof membrane 7 is laid on top of the insulating rock wool board 8, the connection is made by the support... The structural nail 6 passes through the fixed end of the sliding support to connect the waterproof membrane 7 to the upper part of the second end of the connecting support 3; the connecting end protrudes above the waterproof membrane 7 and can be connected to two adjacent upper metal roof panels 1. The connecting end is located between the female rib 16 of one upper metal roof panel 1 and the male rib 17 of the other upper metal roof panel 1. The female rib 16 and the male rib 17 can cooperate to form a hook state. The connecting end can be located between the female rib 16 and the male rib 17 to form a hook connection. Then, by simultaneously bending the female rib 16, the male rib 17 and the connecting end to form a locking connection, the connecting end can be connected between two adjacent upper metal roof panels 1 to form a lock seam to connect the upper metal roof panel 1 to the upper part of the waterproof membrane 7.

[0041] In application, the installation of the upper metal roof panel 1 must first involve securing the first metal roof panel to the upper edge 11 of the protruding connecting support 3 on the upper surface of the waterproof membrane 7, in conjunction with the sliding support 5 and the support structure nails 6. Then, the sliding support 5 is fixed to the upper edge 11 of the connecting support 3 by passing two support structure nails 6 through the protruding upper surface of the waterproof membrane 7. Finally, the edge hook of the female rib 16 of the second metal roof panel is hooked onto the male rib 17 of the first roof panel. At this point, the male and female ribs 16 of the second and first metal roof panels also complete a self-locking process, maintaining the original appearance of the upper metal roof panel 1. The effective width of the upper metal roof panel 1 is 600mm.

[0042] It should be noted that the lower metal roofing inner panel 2 is laid on the upper flange of the main roof purlin, ensuring that the longitudinal length of the lower metal roofing inner panel 2 is perpendicular to the length of the roof purlin 10. The length of the lower metal roofing inner panel 2 can overlap the upper flange of the roof purlin 10, with an overlap length of 100mm. A vapor barrier 9 is installed on the upper surface of the lower metal roofing inner panel 2. The vapor barrier 9 should be laid perpendicular to the direction of the roof purlin 10, with an overlap width of 50mm.

[0043] In a preferred embodiment, the connecting support 3 has a Z-shaped structure and includes an upper limb side 11, a vertical side 12, and a lower limb side 13. The upper limb side 11 is connected to the upper part of the vertical side 12 to form the second end of the connecting support 3, and the lower limb side 13 is connected to the lower part of the vertical side 12 to form the first end of the connecting support 3. The upper limb side 11 and the lower limb side 13 are arranged in parallel.

[0044] The lower metal roof inner panel 2 and the vapor barrier 9 are set above the roof purlins 10. The first end of the connecting support 3 is located above the vapor barrier 9. The purlin structural nail 4 is connected to the first end of the connecting support 3. The purlin structural nail 4 penetrates the vapor barrier 9 and the lower metal roof inner panel 2 and connects to the upper flange of the main roof purlin. The thermal insulation rock wool board 8 is set above the vapor barrier 9. The second end of the connecting support 3 is located on the top of the thermal insulation rock wool board 8. The sliding support 5 is connected above the second end of the connecting support 3. The support structural nail 6 penetrates the sliding support and the waterproof membrane 7 and connects to the second end of the connecting support 3. In order to ensure that the upper edge 11 and the lower edge 13 can fit with the thermal insulation rock wool board 8, the upper edge 11 and the lower edge 13 need to be set parallel to each other.

[0045] The connecting support 3 has a Z-shaped structure design. The first end of the connecting support 3 is located above the vapor barrier membrane 9, and the second end of the connecting support 3 is located above the thermal insulation rock wool board 8. This avoids the traditional situation where the connecting support 3 is located inside the thermal insulation rock wool board 8. Therefore, when laying the thermal insulation rock wool board 8, it is only necessary to embed the thermal insulation rock wool board 8 between two adjacent connecting supports 3. This avoids the need to cut the rock wool when installing the thermal insulation rock wool board 8 on site, which can greatly speed up the construction.

[0046] To further enhance the connection strength between the connecting support 3 and the thermal insulation rock wool board 8, the width of the upper side 11 of the connecting support 3 is made greater than the width of the vertical side 12.

[0047] The upper limb side 11 can be rectangular, circular, semi-circular or arc-shaped, depending on the construction requirements.

[0048] Furthermore, the upper edge 11 of the connecting support 3 has a wave-shaped structure, with crests and troughs, which increases the contact area between the connecting support 3 and the insulation rock wool board 8, making the connection tighter.

[0049] Furthermore, the length of the vertical edge 12 is at least 10 mm greater than the thickness of the thermal insulation rock wool board 8, so that the second end of the connecting support 3 can protrude from the upper surface of the thermal insulation rock wool board 8, so that when the waterproof membrane 7 is spliced ​​and laid on top of the thermal insulation rock wool board 8, the splice position can avoid the connecting support 3.

[0050] The height of the connecting support 3 can be adjusted according to the thickness of the insulation rock wool board 8, and the length of the vertical edge 12 can be adjusted accordingly to ensure that the height of the connecting support 3 is 10mm greater than the thickness of the insulation rock wool board 8. Since the second end of the connecting support 3 is 10mm higher than the upper surface of the insulation rock wool board 8, after the waterproof membrane 7 is laid on top of the insulation rock wool board 8, the waterproof membrane 7 will be raised at the position of the connecting support 3. This makes it easier for the waterproof membrane 7 to avoid the connecting support 3 during the splicing process, and the overlap between the waterproof membranes 7 will avoid the connecting support 3. This makes it easier for the sliding support 5 to be accurately positioned at the second end of the raised connecting support 3 when the upper metal roof panel 1 is installed later.

[0051] In another embodiment, the connecting support 3 includes an upper support, a vertical support, and a lower support. The upper support is connected above the vertical support and includes a first upper support and a second upper support. The first and second upper supports are planar and are vertically and symmetrically connected to both sides of the vertical support. The lower support is vertically connected to one side of the vertical support and is located below the first upper support or below the second upper support. The purpose of the lower support is to connect to the bottom of one of the two adjacent thermal insulation rock wool boards 8. The purpose of the first upper support is to connect to the top of one of the two adjacent thermal insulation rock wool boards 8. The purpose of the second upper support is to connect to the top of the other of the two adjacent thermal insulation rock wool boards 8. The purpose of setting the first upper support, the second upper support, and the lower support is to position and connect the two adjacent thermal insulation rock wool boards 8.

[0052] Furthermore, the lower support includes a first lower support and a second lower support, wherein the first lower support is arranged parallel to and below the first upper support, and the second lower support is arranged parallel to and below the second upper support. The first and second lower supports are symmetrically connected to both sides of the upright, and the connection between the first and second lower supports forms a planar structure. The purpose of the first lower support is to make contact with the bottom of one of the two adjacent thermal insulation rock wool boards 8, and the purpose of the second lower support is to make contact with the bottom of the other of the two adjacent thermal insulation rock wool boards 8.

[0053] Furthermore, the connecting support 3 is made of galvanized steel plate with a yield strength ≥350MPa and a thickness ≥1.8mm; the width of the upper limb side 11 is ≥48mm, and the width of the lower limb side 13 is ≥24mm; the lower limb side 13 is provided with multiple pre-punched holes 19, and the diameter of the pre-punched holes 19 is 5~7mm.

[0054] Multiple pre-punched holes 19 are made on the lower limb edge 13 of the connecting support 3 for inserting purlin structural nails 4, so that the purlin structural nails 4 can penetrate the vapor barrier 9 and the lower metal roof inner panel 2 at the same time, and fix the connecting support 3 to the upper flange of the roof purlin 10.

[0055] In a preferred embodiment, the lower metal roof inner panel 2 has a corrugated structure, such that the lower metal roof inner panel 2 has corrugated crest surfaces 14 and corrugated trough surfaces 15 spaced apart along the length direction, and the first end of the connecting support 3 is placed in the corrugated trough surface 15; a plurality of connecting supports 3 are arranged along at least seven corrugated crest surfaces 14 spaced apart from the lower metal roof inner panel 2.

[0056] Preferably, the first end of the connecting support 3 is placed within the trough surface 15, and the spacing is arranged according to the modular requirement of the upper metal roof outer panel 1 width of 600mm, that is, one is set every seven crest surfaces 14, which is the same as the effective width of the lower metal roof inner panel. In addition to connecting the purlin structural nail 4 to the first end of the connecting support 3, a purlin structural nail 4 is added to the trough surface 15 where two adjacent lower metal roof inner panels 2 overlap, and the lower metal roof inner panel is connected to the roof purlin 10 by the purlin structural nail 4, thereby strengthening the connection between the lower metal roof inner panel 2 and the roof purlin 10.

[0057] The laying of the thermal insulation rock wool board 8 must ensure that the joints are tight to avoid cold bridging due to the temperature difference between indoors and outdoors; at the same time, the above-mentioned connecting supports 3 are arranged on the inner panel 2 of the lower metal roof at intervals of 600mm, which is the same as the 600mm width of the thermal insulation rock wool board 8.

[0058] As a preferred embodiment, the upper metal roof panel 1 is made of steel plate with a thickness ≥ 0.53 mm and a strength greater than 350 MPa; or, it is made of base color steel plate with hot-dip aluminum zinc plating; or it is made of steel plate with aluminum zinc AZ150 and coated with a high-durability polyester HDP colored coating.

[0059] As a preferred embodiment, the lower metal roof inner panel 2 is made of steel plate with a thickness ≥0.4mm and a strength greater than 550MPa; or it is made of base color steel plate with hot-dip galvanized Z120 surface; or it is made of steel plate with aluminum zinc AZ70 and coated with polyester PE color coating.

[0060] As a preferred embodiment, the waterproof membrane 7 is made of TPO or PVC material; the thickness of the waterproof membrane 7 is ≥1.2mm.

[0061] Waterproof membrane 7 is laid on the upper surface of the thermal insulation rock wool board 8 in a direction perpendicular to the roof purlin 10. The width of the waterproof membrane 7 is 1880mm. It is overlapped with each other on site by hot air welding, with an overlap length of 80mm.

[0062] As a preferred embodiment, the density of the thermal insulation rock wool board 8 is ≥120K / m³. 3 .

[0063] As a preferred embodiment, the vapor barrier membrane 9 is made of PE material with a thickness ≥0.3mm.

[0064] This application eliminates the upper purlin in typical double-layer roofing systems. Combined with adjustable-height connecting supports 3 and matching insulation rock wool boards 8 of varying thicknesses, the entire roofing system achieves excellent thermal insulation performance. Simultaneously, adding a waterproof membrane 7 to the insulation rock wool board 8 meets the Class I waterproofing requirements for metal roofing projects. Furthermore, the gap between the upper surface of the waterproof membrane 7 and the upper metal roof panel allows for better circulation of hot air and condensation under the roof panels. Additionally, the modular design of the effective widths of the upper metal roof panel 1 and the lower metal roof panel 2, along with the modular 600mm spacing of the connecting supports 3 and the standard 600mm width of the insulation rock wool board 8, effectively avoids the need to cut the rock wool during on-site installation, significantly accelerating construction speed while ensuring the installation accuracy of the upper metal roof panel 1.

[0065] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0066] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0067] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A waterproof connection structure for metal roofs, characterized in that, It includes roof purlins; the roof purlins are arranged in sequence along the height direction as a lower metal roof inner panel, vapor barrier, connecting support, thermal insulation rock wool board, waterproof membrane, sliding support and upper metal roof outer panel; Multiple connecting supports connect two spliced ​​thermal insulation rock wool boards. Each connecting support has a first end for connecting the upper surface of the vapor barrier membrane and a second end for connecting the upper surface of the thermal insulation rock wool board. The vapor barrier membrane is connected to the lower metal roof inner panel to the roof purlin by purlin structural nails passing through the first end of the connecting supports. The sliding support has a fixed end that connects to the second end of the connecting support and a connecting end that extends in a vertical direction. The waterproof membrane is connected to the upper part of the second end of the connecting support by passing the support structure nail through the fixed end of the sliding support; the connecting end can be connected between two adjacent upper metal roof panels to form a lock joint to connect the upper metal roof panels to the upper part of the waterproof membrane.

2. The waterproof connection structure for a metal roof as described in claim 1, characterized in that, The connecting support has a Z-shaped structure and includes an upper limb side, a standing side, and a lower limb side. The upper limb side is connected to the upper part of the standing side to form the second end of the connecting support, and the lower limb side is connected to the lower part of the standing side to form the first end of the connecting support. The upper limb side and the lower limb side are arranged parallel to each other.

3. The waterproof connection structure for a metal roof as described in claim 2, characterized in that, The length of the vertical edge is at least 10mm greater than the thickness of the thermal insulation rock wool board, so that the second end of the connecting support can protrude from the upper surface of the thermal insulation rock wool board, so that when the waterproof membrane is spliced ​​and laid on top of the thermal insulation rock wool board, the splice position can avoid the connecting support.

4. The waterproof connection structure for a metal roof as described in claim 2, characterized in that, The connecting support is made of galvanized steel plate with a yield strength ≥350MPa and a thickness ≥1.8mm; the width of the upper limb side is ≥48mm and the width of the lower limb side is ≥24mm; the lower limb side has multiple pre-punched holes with a diameter of 5-7mm.

5. The waterproof connection structure for a metal roof as described in claim 1, characterized in that, The lower metal roof inner panel has a corrugated structure, so that the lower metal roof inner panel has crests and troughs spaced apart along the length direction, and the first end of the connecting support is placed in the trough surface; a plurality of the connecting supports are arranged along at least seven crests spaced apart from the lower metal roof inner panel.

6. The waterproof connection structure for a metal roof as described in claim 1, characterized in that, The upper metal roof panel is made of steel plate with a thickness of ≥0.53mm and a strength of ≥350Mpa; or, it is made of base color steel plate with hot-dip aluminum zinc plating; or it is made of steel plate with aluminum zinc AZ150 and coated with a high-durability polyester HDP colored coating.

7. The waterproof connection structure for a metal roof as described in claim 1, characterized in that, The lower metal roof inner panel is made of steel plate with a thickness ≥0.4mm and a strength greater than 550MPa; or a base color steel plate with hot-dip galvanized Z120 surface; or a steel plate with aluminum zinc AZ70 and coated with polyester PE color coating.

8. The waterproof connection structure for a metal roof as described in claim 1, characterized in that, The waterproof membrane is made of TPO or PVC material; the thickness of the waterproof membrane is ≥1.2mm.

9. A waterproof connection structure for metal roofs as described in claim 1, characterized in that, The thermal insulation rock wool board has a density ≥120K / m³ 3 .

10. A waterproof connection structure for metal roofs as described in claim 1, characterized in that, The vapor barrier membrane is made of PE material with a thickness of ≥0.3mm.

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