High-altitude large-area metal roof installation method

Abstract

This invention discloses a method for installing large-area metal roofs at high altitudes, relating to the field of metal roofing technology. It solves the problems of low waterproofing of the bottom profiled metal sheet layer in metal roofs, and the cumbersome operation, high cost, and low overall stability when assembling multi-layer metal roofs. A large-area metal roof at high altitudes includes a bottom frame. The fully sealed, combined bottom profiled steel sheet layer of this invention eliminates the leakage risks associated with traditional bolt-fixed through-holes, preventing rainwater from seeping into the building through the bolt holes. Simultaneously, the integrated, fixed multi-layer metal roof allows for the integrated and modular installation of the vapor barrier layer, changing the cumbersome process of traditional multi-layer metal roofs requiring individual installation of fixing brackets, simplifying the construction process, and improving the overall structural stability of the roof.

Description

Technical Field

[0001] This invention relates to the field of metal roofing technology, specifically a method for installing large-area metal roofs at high altitudes. Background Technology

[0002] Metal roofing refers to protective facilities that use metal sheets as the main material for waterproofing and enclosure, and are constructed by means of profiled metal sheets, metal sandwich panels, glass wool, single-layer waterproof membrane metal roofing or metal sheet composite waterproof membrane, etc., to cover the top of a building. The high-altitude large-area metal roofing installation method refers to a comprehensive construction approach for metal sheet roofs with a building height exceeding 2 meters or more above the fall height reference plane, a large continuous length of a single slope, and a wide overall coverage area. This approach encompasses construction preparation, surveying and setting out, purlin and support system installation, metal roofing panel processing and transportation, high-altitude conveying and positioning, mechanical fixing or interlocking edge connection, detailed node treatment, quality inspection, and safety protection.

[0003] However, the existing profiled metal sheet layer at the bottom of the metal roof is assembled from multiple corrugated panels. During assembly, bolt fixing holes need to be drilled on the outer surface of the corrugated panels according to the frame position. Because it is fixed with bolts, rainwater may seep into the building through the bolt fixing holes over a long period of use. This existing profiled metal sheet layer has low waterproofing. Furthermore, when assembling a multi-layer metal roof, it is necessary to lay metal sandwich panels, single-layer waterproof membrane metal roofing, or metal-panel composite waterproof membrane on top of the profiled metal sheet layer. When multiple different layers need to be installed, multiple fixing brackets need to be installed on the top surface of each installed panel, and these multi-layer fixing brackets are independent of each other. This fixing method is not only cumbersome and costly, but also results in low overall roof stability because each bracket functions independently. Therefore, it does not meet the current requirements. To address this, we propose a high-altitude, large-area metal roof installation method. Summary of the Invention

[0004] The purpose of this invention is to provide a method for installing large-area metal roofs at high altitudes, addressing the problems mentioned in the background art. In existing metal roofs, the bottom layer is composed of multiple corrugated metal panels assembled from various corrugated sheets. During assembly, bolt holes need to be drilled on the outer surface of the corrugated sheets according to the frame position. Because of this bolt-fixing method, rainwater may seep into the building through the bolt holes over time. This existing corrugated metal panel layer has low waterproofing. Furthermore, when assembling a multi-layer metal roof, additional metal sandwich panels, single-layer waterproof membrane metal roofing, or metal-panel composite waterproof membrane need to be laid on the upper surface of the corrugated metal panel layer. When multiple different panels need to be installed, multiple fixing brackets need to be installed on the upper surface of each installed panel, and these multi-layer fixing brackets are independent of each other. This fixing method is not only cumbersome and costly, but also results in low overall roof stability because each bracket functions independently.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-altitude large-area metal roof, comprising a metal roof bottom frame, wherein a fully sealed combined bottom profiled steel plate layer is fixed to the upper end face of the metal roof bottom frame, the fully sealed combined bottom profiled steel plate layer comprises multiple I-shaped mounting frames, each of which has a strip-shaped fixing block fixed on both sides of its upper end face, a second wavy line assembled steel plate is provided above the multiple strip-shaped fixing blocks, a first wavy line assembled steel plate is provided above the second wavy line assembled steel plate, and strip-shaped fixing through holes are provided on the outer surfaces of the second wavy line assembled steel plate and the first wavy line assembled steel plate at positions corresponding to the strip-shaped fixing blocks; A sealing and fixing pressure plate cover is provided on both sides above the first wavy line assembly steel plate. The lower end face of the sealing and fixing pressure plate cover is provided with a slot corresponding to the strip-shaped fixing block. A sealing ring is provided on the outer side of the slot and slidably installed on the lower side of the outer surface of the sealing and fixing pressure plate cover. An annular groove is provided on the inner side of the sealing ring and located on the lower end face of the sealing and fixing pressure plate cover. A bolt fixing groove is provided on the inner wall of the annular groove corresponding to the strip-shaped fixing block. A bolt fixing connecting groove is provided on the outer surface of the strip-shaped fixing block corresponding to the bolt fixing groove. A fixing bolt is provided between the bolt fixing groove and the bolt fixing connecting groove. A hot melt adhesive strip is provided inside the annular groove to contact the sealing ring and the fixing bolt. The upper surface of the fully sealed combined bottom profiled steel sheet layer is connected to an integrated fixed multi-layer metal roof. The integrated fixed multi-layer metal roof includes multiple vapor barrier fixing columns and an integrated fixing mechanism whose number corresponds to the number of vapor barrier fixing columns. A waterproof and breathable layer fixing column is fixed to the upper surface of the vapor barrier fixing column, and a roof panel fixing column is fixed to the upper surface of the waterproof and breathable layer fixing column. A vapor barrier plate is provided above the vapor barrier fixing column, a waterproof and breathable plate is provided above the vapor barrier plate, and a roof panel is provided above the waterproof and breathable plate. The integrated fixing mechanism can fix the vapor barrier plate, the waterproof and breathable plate and the roof panel to the outside of multiple vapor barrier fixing columns, waterproof and breathable plate fixing columns and roof panel fixing columns respectively.

[0006] Preferably, the integrated fixing mechanism includes an external threaded head, a fixing cover is provided above the external threaded head, and a push column is provided below the fixing cover, which is movably inserted into the external threaded head, the roof panel fixing column, the waterproof and breathable layer fixing column, and the vapor barrier fixing column.

[0007] Preferably, a push sleeve is fixedly fitted on the outer surface of the push column at positions corresponding to the roof panel fixing column, the waterproof and breathable layer fixing column, and the vapor barrier fixing column. The lower end face of the push sleeve is an inclined surface. Below the inclined surface inside the roof panel fixing column, an L-shaped fixing bracket is provided, which is slidably installed inside the roof panel fixing column. Below the inclined surface inside the waterproof and breathable layer fixing column, an L-shaped fixing bracket is provided, which is slidably installed inside the waterproof and breathable layer fixing column. Below the inclined surface inside the vapor barrier fixing column, an L-shaped fixing bracket is provided, which is slidably installed inside the vapor barrier fixing column.

[0008] Preferably, a spring connecting groove is provided on one side of the outer surface of the top end of the L-shaped fixing bracket, and a spring is provided on the inner side of the spring connecting groove.

[0009] Preferably, the outer surface of the roof panel is provided with a first fixing ring at a position corresponding to the roof panel fixing post, the inner wall diameter of which matches the outer surface diameter of the roof panel fixing post; the outer surface of the waterproof and breathable layer is provided with a second fixing ring at a position corresponding to the waterproof and breathable layer fixing post, the inner wall diameter of which matches the outer surface diameter of the waterproof and breathable layer fixing post; the outer surface of the vapor barrier is provided with a third fixing ring at a position corresponding to the vapor barrier fixing post, the inner wall diameter of which matches the outer surface diameter of the vapor barrier fixing post; and the inner walls of the first, second, and third fixing rings are provided with annular fixing grooves at positions corresponding to the L-shaped fixing bracket.

[0010] Preferably, the cross-sectional diameter of the vapor barrier fixing column is larger than that of the waterproof and breathable layer fixing column, the cross-sectional diameter of the waterproof and breathable layer fixing column is larger than that of the roof panel fixing column, and the vapor barrier fixing column, the waterproof and breathable layer fixing column, the roof panel fixing column, and the external thread head are integrated into one unit.

[0011] Preferably, a sealing ring is fixed to the outer side of the lower end face of the fixed cover, and an annular encryption groove is provided below the sealing ring on the upper end face of the roof panel, and the shape of the sealing ring corresponds to the inner wall shape of the annular encryption groove.

[0012] Preferably, the outer surface of the hot melt adhesive strip is in contact with the inner wall of the annular groove and the inner wall of the sealing ring, and the hot melt adhesive strip is formed entirely by hot melt adhesive.

[0013] Preferably, the sealing and fixing pressure plate cover has multiple strip-shaped glass wool filling on both sides, and a strip-shaped sealing glass wool is provided on the top of the sealing and fixing pressure plate cover. The outer surface of the strip-shaped sealing glass wool is provided with a circular through hole at the position corresponding to the vapor barrier fixing column.

[0014] Preferably, a method for installing a large-area metal roof at high altitude includes the following steps; Step A: First, use conventional bolt fixing methods to fix multiple I-shaped mounting brackets to the upper end face of the bottom frame of the metal roof. After the multiple I-shaped mounting brackets are fixed, pick up the second wavy line assembly steel plate and align the strip-shaped fixing through hole on the outer surface of the second wavy line assembly steel plate with the strip-shaped fixing block fixed to the upper end face of the I-shaped mounting bracket. Then, lay multiple second wavy line assembly steel plates on the outer surface of multiple I-shaped mounting brackets. During the process of laying the second wavy line assembly steel plates, the strip-shaped fixing block will pass through the strip-shaped fixing through hole on the outer surface of the second wavy line assembly steel plate and be exposed on the outside of the second wavy line assembly steel plate. Step B: After the second wavy line assembly steel plate is laid, pick up the first wavy line assembly steel plate, align the strip-shaped fixing through hole on the outer surface of the first wavy line assembly steel plate with the strip-shaped fixing block passing through the second wavy line assembly steel plate, and lay multiple first wavy line assembly steel plates on the outer surface of the second wavy line assembly steel plate. After multiple second wavy line assembly steel plates are laid, align the slot on the lower end face of the sealing and fixing pressure plate cover with the strip-shaped fixing block passing through the outer surface of the first wavy line assembly steel plate, and then install the sealing and fixing... The pressure plate cover is laid directly on the upper end of the first wavy line assembled steel plate. After the sealing and fixing pressure plate cover is laid, the sealing and fixing pressure plate cover and the strip fixing block are fixed together by using fixing bolts through the bolt fixing groove on the inner wall of the annular groove on the lower side of the outer surface of the sealing and fixing pressure plate cover and the bolt fixing connecting groove on the outer surface of the strip fixing block. After the sealing and fixing pressure plate cover and the strip fixing block are fixed together, hot melt adhesive is filled into the annular groove. After it solidifies, the sealing ring is pushed down to block the hot melt adhesive strip and isolate it from the outside world. Step C: After the first wavy line assembly steel plate, the second wavy line assembly steel plate, and the sealing and fixing pressure plate cover are fixed, the vapor barrier plate, the waterproof and breathable layer plate, and the roof panel are respectively placed on the outside of the vapor barrier fixing column, the waterproof and breathable layer fixing column, and the roof panel fixing column, and the vapor barrier plate, the waterproof and breathable layer plate, and the roof panel are simultaneously fixed by the integrated fixing mechanism.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses a fully sealed combined bottom profiled steel plate layer to completely seal the fixing bolts used for fixing operations inside the annular groove, and uses hot melt adhesive strips to completely fill the internal space of the annular groove, thereby completely separating the fixing bolts from the outside. This technical solution eliminates the leakage risks caused by traditional bolt fixing through holes, and avoids the risk of rainwater seeping into the house through the bolt holes, thereby improving the overall waterproof performance and durability of the metal roofing system. At the same time, this sealing structure can isolate the fixing bolts from direct contact with the outside atmosphere, moisture and corrosive media, prevent the connection failure caused by the corrosion of the fixing bolts, extend the service life of the fixing system, and reduce the later maintenance costs. 2. This invention, through an integrated fixed multi-layer metal roof, uniformly fixes the vapor barrier, waterproof and breathable layer, and roof panel to the outer surface of the integrated vapor barrier fixing columns, waterproof and breathable layer fixing columns, and roof panel fixing columns. This technical solution achieves integrated and modular installation of the multi-layer roof structure, changing the cumbersome process of traditional multi-layer metal roofs that required separate installation of fixing brackets for each layer. It simplifies the construction process, reduces high-altitude work time and labor input, and lowers construction costs. Furthermore, because the vapor barrier fixing columns, waterproof and breathable layer fixing columns, and roof panel fixing columns are designed for integrated production, the fixing structures of each layer form a rigid overall connection rather than independent discrete supports. This enhances the overall collaborative performance of the multi-layer roof system, allowing the roof to deform as a whole and share the load when subjected to wind loads, snow loads, and temperature stresses. It avoids the stress concentration and connection failure problems caused by the lack of coordination between layers in traditional independent supports, thus improving the overall structural stability, wind uplift resistance, and long-term reliability of the roof. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged view of the structure at point A in the middle; Figure 3 This is a front view of the structure when the entire invention is assembled. Figure 4 For the present invention Figure 3 Enlarged view of the structure at point B; Figure 5 For the present invention Figure 4 Enlarged view of the structure at point D; Figure 6 For the present invention Figure 4 Enlarged view of the structure at point C.

[0017] In the diagram: 1. Metal roof bottom frame; 2. Fully sealed combined bottom profiled steel sheet layer; 201. I-shaped mounting bracket; 202. Strip fixing block; 203. First wavy line assembled steel plate; 204. Second wavy line assembled steel plate; 205. Strip fixing through hole; 206. Sealing fixing pressure plate cover; 207. Sealing ring; 208. Annular groove; 209. Hot melt adhesive strip; 210. Bolt fixing groove; 211. Bolt fixing connection groove; 212. Fixing bolt; 213. Slot; 3. Fixing cover; 4. Vapor barrier. 5. Waterproof and breathable layer fixing column; 6. Roof panel fixing column; 7. External threaded head; 8. Vapor barrier board; 9. Waterproof and breathable layer board; 10. Roof panel; 11. First fixing ring; 12. Annular fixing groove; 13. Pushing column; 14. Pushing sleeve; 15. Inclined surface; 16. L-shaped fixing bracket; 17. Spring; 18. Second fixing ring; 19. Third fixing ring; 20. Strip filling glass wool; 21. Strip sealing glass wool; 22. Circular through hole; 23. Sealing ring; 24. Annular reinforcement groove. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] Please see Figures 1 to 6 An embodiment of the present invention provides a high-altitude large-area metal roof, including a metal roof bottom frame 1. A fully sealed combined bottom profiled steel plate layer 2 is fixed to the upper end of the metal roof bottom frame 1. The fully sealed combined bottom profiled steel plate layer 2 includes multiple I-shaped mounting brackets 201. A strip-shaped fixing block 202 is fixed to both sides of the upper end of the I-shaped mounting bracket 201. A second wavy line assembled steel plate 204 is provided above the multiple strip-shaped fixing blocks 202. A first wavy line assembled steel plate 203 is provided above the second wavy line assembled steel plate 204. Strip-shaped fixing through holes 205 are provided on the outer surfaces of the second wavy line assembled steel plate 204 and the first wavy line assembled steel plate 203 at positions corresponding to the strip-shaped fixing blocks 202. On both sides of the steel plate 203 assembled with the first wave line, there is a sealing and fixing pressure plate cover 206. The lower end face of the sealing and fixing pressure plate cover 206 is provided with a groove 213 corresponding to the strip-shaped fixing block 202. A sealing ring 207 is provided on the outer side of the groove 213 and is slidably installed on the lower side of the outer surface of the sealing and fixing pressure plate cover 206. The inner side of the sealing ring 207 is provided with an annular groove 208 located on the lower end face of the sealing and fixing pressure plate cover 206. The inner wall of the annular groove 208 is provided with a bolt fixing groove 210 corresponding to the strip-shaped fixing block 202. The outer surface of the strip-shaped fixing block 202 is provided with a bolt fixing connecting groove 211 corresponding to the bolt fixing groove 210. A fixing bolt 212 is provided between the bolt fixing groove 210 and the bolt fixing connecting groove 211. The interior of the annular groove 208 is provided with a connection to the sealing ring 207. Hot melt adhesive strip 209 in contact with fixing bolt 212; When it is necessary to assemble a large area of ​​metal roof at high altitude, first use conventional bolt fixing method to fix multiple I-shaped mounting brackets 201 to the upper end face of the bottom frame 1 of the metal roof. After the multiple I-shaped mounting brackets 201 are fixed, pick up the second wavy line assembly steel plate 204 and align the strip-shaped fixing through hole 205 on the outer surface of the second wavy line assembly steel plate 204 with the strip-shaped fixing block 202 fixed to the upper end face of the I-shaped mounting bracket 201. Then lay multiple second wavy line assembly steel plates 204 on the outer surface of multiple I-shaped mounting brackets 201. During the process of laying the second wavy line assembly steel plate 204, the strip-shaped fixing block 202 will pass through the strip-shaped fixing through hole 205 on the outer surface of the second wavy line assembly steel plate 204 and be exposed on the outside of the second wavy line assembly steel plate 204. After the second wavy line assembly steel plate 204 is laid, pick up the first wavy line assembly steel plate 203, align the strip-shaped fixing through hole 205 on the outer surface of the first wavy line assembly steel plate 203 with the strip-shaped fixing block 202 passing through the second wavy line assembly steel plate 204, and lay multiple first wavy line assembly steel plates 203 on the outer surface of the second wavy line assembly steel plate 204. After the multiple second wavy line assembly steel plates 204 are laid, align the slot 213 on the lower end face of the sealing and fixing pressure plate cover 206 with the strip-shaped fixing block 202 passing through the outer surface of the first wavy line assembly steel plate 203, and lay the sealing and fixing pressure plate cover 206 directly on the first wavy line assembly steel plate 204. After the sealing and fixing pressure plate cover 206 is laid, pick up the fixing bolt 212 and insert it into the bolt fixing groove 210 inside the inner wall of the annular groove 208. Use an electric torque wrench to rotate the fixing bolt 212 so that it passes through the bolt fixing groove 210 and enters the bolt fixing connection groove 211 located on the outer surface of the strip fixing block 202. In this way, the sealing and fixing pressure plate cover 206 is fixed to the upper end face of the first wavy line assembly steel plate 203. Apply downward pressure to the first wavy line assembly steel plate 203 to fix the sealing and fixing pressure plate cover 206, the first wavy line assembly steel plate 203, the second wavy line assembly steel plate 204 and the I-shaped mounting bracket 201 together. The outer surface of the hot melt adhesive strip 209 is in contact with the inner wall of the annular groove 208 and the inner wall of the sealing ring 207, and the hot melt adhesive strip 209 is formed by the hot melt adhesive. After the fixing bolt 212 is used to fix it, the inside of the annular groove 208 is filled with hot melt adhesive. After it solidifies to form the hot melt adhesive strip 209, the sealing ring 207, which is slidably installed on the outer surface of the sealing fixing pressure plate cover 206, is pushed down until the lower end face of the sealing ring 207 is in contact with the first wavy line assembly steel plate 203, so as to completely cover the hot melt adhesive strip 209 and completely isolate the hot melt adhesive strip 209 and the fixing bolt 212 from the outside. The above technical solution eliminates the leakage risks associated with traditional bolt-fixed through-holes, preventing external rainwater from seeping into the building through the bolt holes. This improves the overall waterproof performance and durability of the metal roofing system. Simultaneously, the sealing structure isolates the fixing bolts 212 from direct contact with the external atmosphere, moisture, and corrosive media, preventing connection failure caused by bolt corrosion, extending the service life of the fixing system, and reducing subsequent maintenance costs. Furthermore, the slot design of the strip-shaped fixing block 202 and the strip-shaped fixing through-hole 205 allows the assembly of the profiled steel sheet layer to no longer be limited by precise drilling at the frame position, improving construction efficiency and installation accuracy, enhancing the airtightness and watertightness of the roof structure, and ensuring that the metal roof maintains stable enclosure function and reliability during long-term use.

[0020] The upper end of the fully sealed combined bottom profiled steel sheet layer 2 is connected to an integrated fixed multi-layer metal roof. The integrated fixed multi-layer metal roof includes multiple vapor barrier fixing columns 4 and an integrated fixing mechanism whose number corresponds to the number of vapor barrier fixing columns 4. A waterproof and breathable layer fixing column 5 is fixed to the upper end of the vapor barrier fixing column 4, and a roof panel fixing column 6 is fixed to the upper end of the waterproof and breathable layer fixing column 5. The cross-sectional diameter of the vapor barrier fixing column 4 is larger than that of the waterproof and breathable layer fixing column 5, and the cross-sectional diameter of the waterproof and breathable layer fixing column 5 is larger than that of the roof panel fixing column 6. The vapor barrier fixing column 4, the waterproof and breathable layer fixing column 5, the roof panel fixing column 6, and the external threaded head 7 are integrated into one unit. Multiple strip-shaped glass wool 20s are provided on both sides of the sealing and fixing pressure plate cover 206, and a strip-shaped sealing glass wool 21 is provided directly above the sealing and fixing pressure plate cover 206. The outer surface of the strip-shaped sealing glass wool 21 is fixed to the vapor barrier. A circular through hole 22 is provided at the corresponding position of column 4; after the fully sealed combined bottom profiled steel plate layer 2 is assembled, the integrated vapor barrier fixing column 4, waterproof and breathable layer fixing column 5, roof panel fixing column 6 and external thread head 7 are respectively fixed to the upper end face of the sealing fixing pressure plate cover 206. Pick up the strip sealing glass wool 21, align the circular through hole 22 located on the upper end face of the strip sealing glass wool 21 with the vapor barrier fixing column 4, and cover the upper end face of the strip sealing glass wool 21 with the overall bracket of the strip sealing glass wool 21. After the strip sealing glass wool 21 is installed, strip filling glass wool 20 is laid on both sides of the sealing and fixing pressure plate cover 206. After the strip filling glass wool 20 is laid, a glass wool protective layer can be formed by the strip filling glass wool 20 and the strip sealing glass wool 21 located on the upper surface of the sealing and fixing pressure plate cover 206.

[0021] A first fixing ring 11, whose inner wall diameter matches the outer surface diameter of the roof panel 10, is provided on the outer surface of the roof panel fixing column 6 at a position corresponding to the outer surface diameter of the roof panel fixing column 6. A second fixing ring 18, whose inner wall diameter matches the outer surface diameter of the waterproof and breathable layer fixing column 5, is provided on the outer surface of the waterproof and breathable layer board 9 at a position corresponding to the outer surface diameter of the waterproof and breathable layer fixing column 5. A third fixing ring 19, whose inner wall diameter matches the outer surface diameter of the vapor barrier board 8, is provided on the outer surface of the vapor barrier fixing column 4 at a position corresponding to the outer surface diameter of the vapor barrier fixing column 4. The inner walls of the first fixing ring 11, the second fixing ring 18, and the third fixing ring 19 are provided with annular fixing grooves 12 at positions corresponding to the L-shaped fixing bracket 16. After the glass wool protective layer is laid, the vapor barrier board 8, the waterproof and breathable layer board 9, and the roof panel 10 are respectively fitted onto the outside of the multiple vapor barrier fixing columns 4, waterproof and breathable layer fixing columns 5, and roof panel fixing columns 6 by fixing the third fixing ring 19, the second fixing ring 18, and the first fixing ring 11 to the outer surface of the vapor barrier board 8, the waterproof and breathable layer board 9, and the roof panel 10.

[0022] The integrated fixing mechanism includes an external threaded head 7, a fixing cover 3 above the external threaded head 7, and a pusher 13 below the fixing cover 3 that is movably inserted into the external threaded head 7, the roof panel fixing post 6, the waterproof and breathable layer fixing post 5, and the vapor barrier fixing post 4. A pusher sleeve 14 is fixedly fitted onto the outer surface of the pusher 13 at positions corresponding to the roof panel fixing post 6, the waterproof and breathable layer fixing post 5, and the vapor barrier fixing post 4. The lower end face of the pusher sleeve 14 is an inclined surface 15, and a sliding mounting ring is provided below the inclined surface 15 inside the roof panel fixing post 6. An L-shaped fixing bracket 16 is located inside the roof panel fixing column 6. A ring of L-shaped fixing brackets 16 is slidably installed inside the waterproof and breathable layer fixing column 5 below the inclined surface 15 inside the waterproof and breathable layer fixing column 5. A ring of L-shaped fixing brackets 16 is also located inside the vapor barrier fixing column 4 below the inclined surface 15 inside the vapor barrier fixing column 4. A spring connecting groove is provided on one side of the outer surface of the top end of the L-shaped fixing bracket 16, and a spring 17 is provided inside the spring connecting groove. When the vapor barrier board 8, the waterproof and breathable layer board 9, and the roof panel 1... After the cover is placed on the outside of the multiple vapor barrier fixing columns 4, waterproof and breathable layer fixing columns 5, and roof panel fixing columns 6, the fixing cover 3 is installed on the outer surface of the external thread head 7 through the threaded structure. During the installation of the fixing cover 3, the inner wall of the fixing cover 3 will contact the push column 13 and push the push column 13 downward. As the push column 13 descends, the push sleeve 14 fixed to the outer surface of the push column 13 will move downward together. As the push sleeve 14 descends, the inclined surface 15 located on the lower end face of the push sleeve 14 will contact the L-shaped fixing bracket. 16. Push the L-shaped fixing bracket 16 outward. When the L-shaped fixing bracket 16 is pushed outward, the L-shaped fixing bracket 16 located inside the vapor barrier fixing column 4, the waterproof and breathable layer fixing column 5, and the roof panel fixing column 6 will respectively be inserted into the annular fixing groove 12 located on the inner wall of the third fixing ring 19, the second fixing ring 18, and the first fixing ring 11, so as to fix the vapor barrier plate 8, the waterproof and breathable layer plate 9, and the roof panel 10 to the outer surface of the integrated vapor barrier fixing column 4, the waterproof and breathable layer fixing column 5, and the roof panel fixing column 6. The above technical solution realizes the integrated and modular installation of multi-layer roof structures, changing the cumbersome process of traditional multi-layer metal roofs that require the independent installation of fixed supports one by one. It simplifies the construction process, reduces high-altitude operation time and labor input, and reduces construction costs. At the same time, since the vapor barrier fixing column 4, waterproof and breathable layer fixing column 5 and roof panel fixing column 6 adopt an integrated production design, the fixing structures of each layer form a rigid overall connection rather than independent discrete supports. This enhances the overall collaborative performance of the multi-layer roof system, enabling the roof to deform as a whole and share the load when subjected to wind load, snow load and temperature stress. It avoids the stress concentration and connection failure problems caused by the lack of coordination between inter-layer displacement of traditional independent supports, and improves the overall structural stability, wind uplift resistance and long-term reliability of the roof. The spring force applied by the spring 17 connected to the L-shaped fixing bracket 16 prevents the L-shaped fixing bracket 16 from always remaining in a contracted state when installing the vapor barrier 8, the waterproof and breathable layer 9, and the roof panel 10. This prevents the L-shaped fixing bracket 16 from contacting the third fixing ring 19, the second fixing ring 18, or the first fixing ring 11, thereby preventing damage such as scratches, coating damage, or structural deformation.

[0023] A sealing ring 23 is fixed to the outer side of the lower end face of the fixed cover 3. Below the sealing ring 23, there is an annular encryption groove 24 located on the upper end face of the roof panel 10, and the shape of the sealing ring 23 corresponds to the inner wall shape of the annular encryption groove 24. When the fixed cover 3 is installed, the sealing ring 23 located on the lower end face of the fixed cover 3 will gradually approach the annular encryption groove 24 located on the upper end face of the roof panel 10. When the lower end face of the fixed cover 3 contacts the roof panel 10, the sealing ring 23 will completely enter the interior of the annular encryption groove 24. The sealing ring 23 and the vapor barrier fixing column 4 in the above technical solution can improve the sealing between the roof panel fixing column 6 and the roof panel 10, thereby preventing rainwater from flowing into the interior of the metal roof through the gap between the roof panel 10 and the roof panel fixing column 6.

[0024] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-altitude, large-area metal roof, comprising a metal roof bottom frame (1), characterized in that: The upper end face of the metal roof bottom frame (1) is fixed with a fully sealed combined bottom profiled steel plate layer (2). The fully sealed combined bottom profiled steel plate layer (2) includes multiple I-shaped mounting brackets (201). Both sides of the upper end face of the I-shaped mounting brackets (201) are fixed with strip-shaped fixing blocks (202). A second wavy line assembled steel plate (204) is provided above the multiple strip-shaped fixing blocks (202). A first wavy line assembled steel plate (203) is provided above the second wavy line assembled steel plate (204). The outer surfaces of the second wavy line assembled steel plate (204) and the first wavy line assembled steel plate (203) are provided with strip-shaped fixing through holes (205) at positions corresponding to the strip-shaped fixing blocks (202). A sealing and fixing pressure plate cover (206) is provided on both sides above the first wavy line assembly steel plate (203). The lower end face of the sealing and fixing pressure plate cover (206) is provided with a slot (213) corresponding to the strip fixing block (202). A sealing ring (207) is provided on the outer side of the slot (213) and is slidably installed on the lower side of the outer surface of the sealing and fixing pressure plate cover (206). The inner side of the sealing ring (207) is provided with an annular groove (208) located on the lower end face of the sealing and fixing pressure plate cover (206). The inner wall of the annular groove (208) is... A bolt fixing groove (210) is provided at a position corresponding to the strip fixing block (202). A bolt fixing connecting groove (211) is provided at a position corresponding to the bolt fixing groove (210) on the outer surface of the strip fixing block (202). A fixing bolt (212) is provided between the bolt fixing groove (210) and the bolt fixing connecting groove (211) at the corresponding positions. A hot melt adhesive strip (209) is provided inside the annular groove (208) to contact the sealing ring (207) and the fixing bolt (212). The upper surface of the fully sealed combined bottom profiled steel plate layer (2) is connected to an integrated fixed multi-layer metal roof. The integrated fixed multi-layer metal roof includes multiple vapor barrier fixing columns (4) and an integrated fixing mechanism whose number corresponds to the number of vapor barrier fixing columns (4). A waterproof and breathable layer fixing column (5) is fixed to the upper surface of the vapor barrier fixing column (4), and a roof panel fixing column (6) is fixed to the upper surface of the waterproof and breathable layer fixing column (5). A vapor barrier plate (8) is provided above the vapor barrier fixing column (4), a waterproof and breathable plate (9) is provided above the vapor barrier plate (8), and a roof panel (10) is provided above the waterproof and breathable plate (9). The integrated fixing mechanism can fix the vapor barrier plate (8), the waterproof and breathable plate (9) and the roof panel (10) to the outside of multiple vapor barrier fixing columns (4), waterproof and breathable plate fixing columns (5) and roof panel fixing columns (6), respectively.

2. The high-altitude, large-area metal roof according to claim 1, characterized in that: The integrated fixing mechanism includes an external threaded head (7), a fixing cover (3) is provided above the external threaded head (7), and a pusher (13) is provided below the fixing cover (3) and is movably inserted into the external threaded head (7), the roof panel fixing column (6), the waterproof and breathable layer fixing column (5) and the vapor barrier fixing column (4).

3. A high-altitude, large-area metal roof according to claim 2, characterized in that: A push sleeve (14) is fixedly fitted on the outer surface of the push column (13) at the corresponding positions of the roof panel fixing column (6), the waterproof and breathable layer fixing column (5), and the vapor barrier fixing column (4). The lower end face of the push sleeve (14) is an inclined surface (15). An L-shaped fixing bracket (16) is provided below the inclined surface (15) inside the roof panel fixing column (6). An L-shaped fixing bracket (16) is provided below the inclined surface (15) inside the waterproof and breathable layer fixing column (5). An L-shaped fixing bracket (16) is provided below the inclined surface (15) inside the vapor barrier fixing column (4).

4. A high-altitude, large-area metal roof according to claim 3, characterized in that: The L-shaped fixing bracket (16) has a spring connecting groove on one side of the outer surface of the top end, and a spring (17) is provided on the inner side of the spring connecting groove.

5. A high-altitude, large-area metal roof according to claim 4, characterized in that: The outer surface of the roof panel (10) is provided with a first fixing ring (11) whose inner wall diameter matches the outer surface diameter of the roof panel fixing column (6) at the position corresponding to the roof panel fixing column (6). The outer surface of the waterproof and breathable layer board (9) is provided with a second fixing ring (18) whose inner wall diameter matches the outer surface diameter of the waterproof and breathable layer fixing column (5) at the position corresponding to the waterproof and breathable layer fixing column (5). The outer surface of the vapor barrier board (8) is provided with a third fixing ring (19) whose inner wall diameter matches the outer surface diameter of the vapor barrier fixing column (4) at the position corresponding to the vapor barrier fixing column (4). The inner walls of the first fixing ring (11), the second fixing ring (18) and the third fixing ring (19) are provided with annular fixing grooves (12) at the position corresponding to the L-shaped fixing bracket (16).

6. A high-altitude, large-area metal roof according to claim 5, characterized in that: The cross-sectional diameter of the vapor barrier fixing column (4) is larger than that of the waterproof and breathable layer fixing column (5), and the cross-sectional diameter of the waterproof and breathable layer fixing column (5) is larger than that of the roof panel fixing column (6). The vapor barrier fixing column (4), the waterproof and breathable layer fixing column (5), the roof panel fixing column (6), and the external thread head (7) are integrated into one unit.

7. A high-altitude, large-area metal roof according to claim 6, characterized in that: A sealing ring (23) is fixed on the outer side of the lower end face of the fixed cover (3). Below the sealing ring (23) is an annular encryption groove (24) located on the upper end face of the roof panel (10), and the shape of the sealing ring (23) corresponds to the inner wall shape of the annular encryption groove (24).

8. A high-altitude, large-area metal roof according to claim 7, characterized in that: The outer surface of the hot melt adhesive strip (209) is in contact with the inner wall of the annular groove (208) and the inner wall of the sealing ring (207), and the hot melt adhesive strip (209) is formed by the hot melt adhesive.

9. A high-altitude, large-area metal roof according to claim 8, characterized in that: The sealing and fixing pressure plate cover (206) has multiple strip-shaped filling glass wool (20) on both sides, and a strip-shaped sealing glass wool (21) is provided directly above the sealing and fixing pressure plate cover (206). The outer surface of the strip-shaped sealing glass wool (21) is provided with a circular through hole (22) at the position corresponding to the vapor barrier fixing column (4).

10. An installation method for a large-area high-altitude metal roof as described in claim 9, characterized in that: The installation method includes the following steps; Step A: First, use conventional bolt fixing to fix multiple I-shaped mounting brackets (201) to the upper end face of the metal roof bottom frame (1). After the multiple I-shaped mounting brackets (201) are fixed, pick up the second wavy line assembly steel plate (204) and align the strip-shaped fixing through hole (205) on the outer surface of the second wavy line assembly steel plate (204) with the strip-shaped fixing block (202) fixed to the upper end face of the I-shaped mounting bracket (201). Then, lay multiple second wavy line assembly steel plates (204) on the outer surface of multiple I-shaped mounting brackets (201). During the process of laying the second wavy line assembly steel plates (204), the strip-shaped fixing block (202) will pass through the strip-shaped fixing through hole (205) on the outer surface of the second wavy line assembly steel plate (204) and be exposed on the outside of the second wavy line assembly steel plate (204). Step B: After the second wavy line assembly steel plate (204) is laid, pick up the first wavy line assembly steel plate (203), align the strip-shaped fixing through hole (205) on the outer surface of the first wavy line assembly steel plate (203) with the strip-shaped fixing block (202) passing through the second wavy line assembly steel plate (204), and lay multiple first wavy line assembly steel plates (203) on the outer surface of the second wavy line assembly steel plate (204). After the multiple second wavy line assembly steel plates (204) are laid, align the slot (213) on the lower end face of the sealing and fixing pressure plate cover (206) with the strip-shaped fixing block (202) passing through the outer surface of the first wavy line assembly steel plate (203), and lay the sealing and fixing pressure plate cover (206) on the outer surface of the second wavy line assembly steel plate (204). 06) Lay directly on the upper surface of the first wave-line assembled steel plate (203). After the sealing and fixing pressure plate cover (206) is laid, use fixing bolts (212) to fix the sealing and fixing pressure plate cover (206) and the strip fixing block (202) through the bolt fixing groove (210) on the inner wall of the annular groove (208) located on the lower side of the outer surface of the sealing and fixing pressure plate cover (206) and the bolt fixing connecting groove (211) on the outer surface of the strip fixing block (202). After the sealing and fixing pressure plate cover (206) and the strip fixing block (202) are fixed, fill the inside of the annular groove (208) with hot melt adhesive. After it solidifies, push the sealing ring (207) down to cover the hot melt adhesive strip (209) and isolate it from the outside world. Step C: After the first wavy line assembly steel plate (203), the second wavy line assembly steel plate (204) and the sealing and fixing pressure plate cover (206) are fixed, the vapor barrier plate (8), the waterproof and breathable plate (9) and the roof panel (10) are respectively placed on the outside of the vapor barrier fixing column (4), the waterproof and breathable plate fixing column (5) and the roof panel fixing column (6), and the vapor barrier plate (8), the waterproof and breathable plate (9) and the roof panel (10) are fixed simultaneously through the integrated fixing mechanism.

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