Unitized tpo roofing structure

Abstract

The application provides a unit type TPO roof structure, comprising: a unit block, comprising a structural frame and a functional layer filled in the structural frame, and at least two composite metal fusion TPO roof panels horizontally laid on the upper part of the functional layer, and the composite metal fusion TPO roof panels are connected through welding; and a connecting assembly, comprising a transverse connecting piece and a longitudinal connecting piece, the transverse connecting piece is used for transverse splicing of adjacent unit blocks, and the longitudinal connecting piece is used for longitudinal splicing of adjacent unit blocks. The structural frame, the functional layer and the at least two composite metal fusion TPO roof panels are compounded into a prefabricated unit block, and adjacent unit blocks are connected through the transverse connecting piece and the longitudinal connecting piece. The unit block is convenient for later local maintenance, when a unit block has a problem, only the unit block needs to be removed and replaced, without large-area excavation, the replacement time of the unit block only needs 2-3 hours, the maintenance cost is reduced by 80% compared with the traditional roof, and the normal use of the building is not affected.

Description

Technical Field

[0001] This application relates to the field of building roofing technology, and more particularly to unitized TPO roofing structures. Background Technology

[0002] Traditional roofing construction requires multiple steps to be completed on-site, including leveling, insulation, waterproofing membrane installation, and finishing. Each step requires waiting for the previous one to cure or dry, resulting in a long construction period and significant weather-related impacts. This is especially true for large-span buildings where on-site work areas are dispersed, leading to high labor costs and difficulty in controlling construction progress. Traditional metal roofing construction requires the installation of an outer profiled metal sheet, support structure, waterproofing layer, adhesive substrate, thermal insulation layer, vapor barrier, profiled steel sheet support plate, and purlins.

[0003] Waterproof membranes laid on-site require splicing via hot-melt or adhesive methods. Joints are prone to cracking and detachment due to improper construction, substrate deformation, or temperature changes, leading to roof leaks. Statistics show that approximately 60% of roof leaks originate from improper treatment of membrane joints. When leaks or insulation failure occur, extensive excavation and inspection of the roof system are necessary, resulting in high repair costs, disruption to normal building use, and difficulties in future maintenance. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a unitized TPO roof structure to solve the problem of difficult maintenance of existing TPO roof structures.

[0005] In a first aspect, this application provides a unitized TPO roof structure, comprising: a unit panel, including a structural frame and a functional layer filled within the structural frame, wherein at least two composite metal fused TPO roof panels are horizontally laid on the upper part of the functional layer, and the composite metal fused TPO roof panels are connected by welding. The connecting component includes a horizontal connector and a vertical connector. The horizontal connector is used for horizontal splicing of adjacent unit panels, and the vertical connector is used for vertical splicing of adjacent unit panels.

[0006] In some embodiments, the composite metal-fused TPO roofing panel comprises, in sequence, a profiled metal sheet, a first rock wool layer, and a zinc-aluminum-magnesium sheet and a TPO roll fusion layer; and / or The structural frame is provided with several horizontal bars for supporting the functional layers; and / or The functional layer includes, from bottom to top, a base plate, a vapor barrier, a sound-absorbing cotton layer, and a waterproof and breathable membrane, with at least two composite metal fused TPO roof panels disposed on the upper part of the waterproof and breathable membrane.

[0007] In some embodiments, each of the composite metal fused TPO roofing panels has a snap-fit ​​member on at least one side, the snap-fit ​​member including a first extension connected to the profiled metal sheet, the first extension being a U-shaped profiled metal sheet; and a second extension connected to the zinc-aluminum-magnesium sheet and the TPO roll fusion layer, the second extension being a first TPO roll; and / or Weld a threaded base onto the crossbar.

[0008] In some embodiments, the first extension is connected to the structural frame via a first screw; after the adjacent composite metal fused TPO roof panel is spliced ​​with the snap-fit ​​member, the adjacent composite metal fused TPO roof panel is connected to the structural frame via a second screw; and / or It also includes a roof support, wherein the threaded base corresponding to the composite metal fused TPO roof panel is provided with an opening, the roof support includes a lower round pipe flange, the lower round pipe flange is passed through the opening and tightened to the corresponding threaded base, and an upper round pipe flange is fixed to the lower round pipe flange with M8 bolts; it also includes a sixth TPO roll sealing element, the sixth TPO roll sealing element is fitted over the upper round pipe flange, the top is tightened with a buckle and sealed with weather-resistant sealant, and the lower part of the sixth TPO roll sealing element is welded; a pipe top cover is installed on the top of the upper round pipe flange; an adapter is installed on the top of the pipe top cover and fixed with bolts.

[0009] In some embodiments, the second extension on one side of the second screw is hot-air welded to the adjacent composite metal fused TPO roof panel.

[0010] In some embodiments, adjacent unit panels are connected by a longitudinal connector along the width direction of the unit panel. The longitudinal connector includes a second rock wool layer between the ends of adjacent unit panels, the second rock wool layer extending above the unit panel, and a second TPO roll material located above the second rock wool layer and extending to the upper part of the adjacent unit panel. The second TPO roll materials on both sides of the second rock wool layer are hot-air welded to the corresponding unit panels.

[0011] In some embodiments, the longitudinal connector further includes a third TPO roll located above the second TPO roll, the third TPO roll extending beyond the sides of the second TPO roll on both sides, and the third TPO roll extending beyond the sides of the second TPO roll being hot-air welded to the corresponding unit plate; and / or A waterproof butyl tape is provided between the second rock wool layer and the second TPO roll material.

[0012] In some embodiments, adjacent unit panels are connected by a transverse connector along the length of the unit panel. One of the unit panels is provided with the snap-fit ​​member. The transverse connector includes a third rock wool layer located within the snap-fit ​​member and a composite metal fused TPO roof panel located between the third rock wool layer and another unit panel. The composite metal fused TPO roof panel is connected to the corresponding structural frame by a third screw and a fourth screw, respectively.

[0013] In some embodiments, a fourth TPO roll is disposed on the upper part of the composite metal fused TPO roofing panel located between the third rock wool layer and another unit panel. One side of the fourth TPO roll extends to the upper part of the third rock wool layer, and the other side extends to the upper part of the other unit panel. A fifth screw is disposed between the fourth TPO roll and the third rock wool layer, extending to the structural frame at the lower part of the snap-fit ​​member. The first extension of the snap-fit ​​member is connected to the corresponding structural frame via a sixth screw. A second extension of the snap-fit ​​member overlaps the fifth screw and the upper part of the fourth TPO roll, and the second extension is hot-air welded to the fourth TPO roll. The fourth TPO roll extends to the upper part of the other unit panel, and the fourth TPO roll is hot-air welded to the upper part of the other unit panel; and / or Each unit panel has a concave supporting aluminum plate around the bottom of the structural frame. Adjacent concave supporting aluminum plates of adjacent unit panels are connected by an inverted concave supporting aluminum plate. A fourth rock wool layer is provided between the inverted concave supporting aluminum plate and the corresponding composite metal fused TPO roof panel above it.

[0014] In some embodiments, a fifth TPO roll is disposed on the upper part of the fourth TPO roll, and the two ends of the fifth TPO roll extend to the upper part of one of the unit plates and the upper part of the other unit plate, respectively. The fifth TPO roll is hot-air welded to the upper part of one of the unit plates and the upper part of the other unit plate, respectively. Beneficial effects

[0015] This application integrates a structural frame, functional layers, and at least two composite metal fused TPO roof panels into prefabricated unit panels. Adjacent unit panels are connected by horizontal and vertical connectors. The unit panels of this application facilitate localized maintenance in the later stages. When a unit panel has a problem, it can be removed and replaced without large-scale excavation. The replacement time for a unit panel is only 2-3 hours, reducing maintenance costs by 80% compared to traditional roofs, without affecting the normal use of the building. This solves the problem of difficult maintenance of existing TPO roof structures.

[0016] The prefabricated unit modules of this application, after being manufactured in the factory, only require assembly and welding on-site via connecting components, reducing construction steps by more than 60%. Taking a 1000㎡ roof as an example, traditional construction takes 20-30 days, while this invention can complete the project in only 5-7 days, shortening the construction cycle by 70%, and is unaffected by rain, low temperatures, or other severe weather. Factory prefabrication reduces on-site construction waste by more than 90%, and each functional layer of the entire unitized TPO roof structure can be separated and recycled, achieving a material recycling rate of over 85%, which aligns with the trend of green building development.

[0017] The prefabricated unit panels in this application have strong overall structural stability, avoiding problems such as hollowing and slippage between layers during on-site construction.

[0018] Both the horizontal and vertical connectors in this application use the same TPO roll material as the top waterproofing layer of the unitized TPO roof structure. Hot air welding achieves seamless connection between the unit panels, making the entire unitized TPO roof structure a continuous whole and completely solving the technical problem of easy leakage at traditional roll joints. Furthermore, the horizontal and vertical connectors are designed with tongue-and-groove and slot-type structures respectively, facilitating rapid on-site positioning and assembly. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this application and are not intended to limit this application, wherein: Figure 1 This is a structural frame plan view of this application; Figure 2 This is a cross-sectional view of the unit plate in this application; Figure 3 This is a cross-sectional view of the composite metal fused TPO roofing panel of this application; Figure 4 This is a structural diagram of the snap-fit ​​connector at the connection point of adjacent composite metal fused TPO roof panels in this application; Figure 5 This is a structural diagram of the lateral connector of this application; Figure 6 This is a structural diagram of the longitudinal connector of this application; Figure 7 This is a connection diagram of the roof support and the composite metal fused TPO roof panel in this application.

[0020] The attached diagram lists the components represented by each number as follows: 1-Structural frame; 2-Crossbar; 3-Base plate; 4-Vacuum barrier membrane; 5-Sound-absorbing cotton layer; 6-Waterproof and breathable membrane; 7-Composite metal fused TPO roofing panel; 8-Metal profiled steel sheet; 9-First rock wool layer; 10-Zinc-aluminum-magnesium board and TPO roll fused layer; 11-Unit panel; 12-First extension; 13-Second extension; 14-First screw; 15-Second screw; 16-Threaded base; 17-Lower round pipe flange; 18-Upper round pipe flange; 19-M 8 Bolts; 20 - Sixth TPO roll sealant; 21 - Fourth rock wool layer; 22 - Adapter; 23 - Second rock wool layer; 24 - Second TPO roll; 25 - Third TPO roll; 26 - Waterproof butyl tape; 27 - Third rock wool layer; 28 - Third screw; 29 - Fourth screw; 30 - Fourth TPO roll; 31 - Fifth screw; 32 - Sixth screw; 33 - Fifth TPO roll; 34 - Concave support aluminum plate; 35 - Inverted concave support aluminum plate. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In the description of this application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a unique orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] In this application, the term "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles disclosed in this application.

[0024] Please see Figure 1 and Figure 2 In a first aspect, embodiments of this application provide a unitized TPO roof structure, comprising: The unit module includes a structural frame 1 and a functional layer filled within the structural frame 1. At least two composite metal fused TPO roof panels 7 are horizontally laid on the upper part of the functional layer, and the composite metal fused TPO roof panels 7 are connected by welding. The connecting component includes a horizontal connector and a vertical connector. The horizontal connector is used for horizontal splicing of adjacent unit panels, and the vertical connector is used for vertical splicing of adjacent unit panels.

[0025] It is understood that at least two composite metal fused TPO roof panels 7 are horizontally laid on the upper part of the functional layer.

[0026] Please see Figure 3 In some embodiments, the composite metal fused TPO roofing panel 7 includes a metal profiled steel sheet 8, a first rock wool layer 9, and a zinc-aluminum-magnesium board and TPO roll fused layer 10 stacked sequentially.

[0027] For example, from bottom to top, the layers are a 0.8mm thick profiled metal sheet 8, a 100mm thick first rock wool layer 9, and a 0.6mm thick zinc-aluminum-magnesium sheet and a 1.8mm thick TPO roll fusion layer 10; the density of the rock wool in the first rock wool layer 9 is 120Kg / m³. 3 .

[0028] It is understandable that the zinc-aluminum-magnesium sheet and TPO roll fusion layer 10 is that the first TPO roll is laid on the top of the zinc-aluminum-magnesium sheet, and the two are bonded together by neoprene adhesive.

[0029] It is understandable that the zinc-aluminum-magnesium sheet and TPO roll fusion layer 10 are commercially available.

[0030] Please see Figure 4Furthermore, each of the composite metal fused TPO roof panels 7 is provided with a snap-fit ​​member on at least one side. The snap-fit ​​member includes a first extension 12 connected to the metal profiled steel sheet 8, the first extension 12 being a U-shaped metal profiled steel sheet; and a second extension 13 connected to the zinc-aluminum-magnesium sheet and the TPO roll fusion layer 10, the second extension 13 being a first TPO roll.

[0031] Furthermore, the first extension 12 is connected to the structural frame 1 by a first screw 14; after the adjacent composite metal fused TPO roof panel 7 is spliced ​​with the snap-fit ​​component, the adjacent composite metal fused TPO roof panel 7 is connected to the structural frame 1 by a second screw 15.

[0032] Furthermore, the second extension 13 on one side of the second screw 15 is hot-air welded to the adjacent composite metal fused TPO roof panel 7.

[0033] It is understandable that, in use, the first screw 14 is fixed first, then the adjacent composite metal fused TPO roof panels 7 are spliced ​​into the snap-fit ​​parts, the second extension 13 is flipped open, the second screw 15 is installed, and then hot air welding is performed. It is also understandable that the hot air welding is performed between the adjacent first TPO rolls.

[0034] For example, the first screw 14 is an internal Torx self-drilling screw M5.5*25@1330 times purlin; the second screw 15 is an internal Torx self-drilling screw M6.3*90mm@1330 times purlin that matches the sleeve.

[0035] In some embodiments, the structural frame 1 is provided with a plurality of crossbars 2 for supporting the functional layer.

[0036] For example, the structural frame 1 and the crossbar 2 are H-beams. It can be understood that the density of H-beams is only that of traditional concrete leveling layers. Compared with traditional roof square tube purlins, it can reduce the amount of steel used, and while ensuring the support strength, it can significantly reduce the roof load.

[0037] Furthermore, a threaded base 16 is welded onto the crossbar 2.

[0038] For example, three threaded bases 16 are evenly provided on the spaced crossbars 2, and three threaded bases 16 are provided on both sides of the crossbars 2.

[0039] Furthermore, the functional layer includes a base plate 3, a vapor barrier membrane 4, a sound-absorbing cotton layer 5, and a waterproof and breathable membrane 6 arranged sequentially from bottom to top, and at least two composite metal fused TPO roof panels 7 are arranged on the upper part of the waterproof and breathable membrane 6.

[0040] Furthermore, the base plate 3 is a profiled aluminum plate.

[0041] Furthermore, the vapor barrier 4 includes a polyethylene film or a polypropylene film.

[0042] It is understandable that the material of the sound-absorbing cotton layer 5 is commercially available sound-absorbing cotton or glass wool felt.

[0043] Furthermore, the waterproof and breathable membrane 6 is made of polyethylene or polypropylene.

[0044] For example, the functional layer includes, from bottom to top, a 1mm profiled aluminum plate, a 3mm vapor barrier membrane 4, a 230mm sound-absorbing cotton layer 5, and a 0.49mm waterproof and breathable membrane 6.

[0045] Both the vapor barrier membrane 4 and the waterproof and breathable membrane 6 of this application are provided with micro-perforated vapor-permeable structures, which can effectively block the water vapor in the base layer from penetrating into the sound-absorbing cotton layer 5, and can also timely discharge the small amount of water vapor generated in the sound-absorbing cotton layer 5, so as to avoid the sound-absorbing cotton layer 5 from becoming damp and failing, and improve the durability of the unitized TPO roof structure.

[0046] The composite metal fused TPO roof panel 7 of this application is provided with a first rock wool layer 9 and a sound-absorbing cotton layer 5 is provided in the structural frame to further reduce the cold bridge effect and meet the energy-saving requirements of extremely cold regions.

[0047] Furthermore, the composite metal fused TPO roof panel 7 is fixed to the structural frame 1 by fasteners.

[0048] Please see Figure 7 Furthermore, it also includes a roof support, wherein the threaded base 16 corresponding to the composite metal fused TPO roof panel 7 is provided with an opening, the roof support includes a lower round pipe flange 17, the lower round pipe flange 17 is passed through the opening and tightened to the corresponding threaded base 16, and also includes an upper round pipe flange 18, which is fixed to the lower round pipe flange 17 with M8 bolts 19; it also includes a sixth TPO roll sealing element 20, which is fitted over the upper round pipe flange 18, tightened at the top with a snap fastener, and sealed with weather-resistant sealant, and the lower part of the sixth TPO roll sealing element 20 is welded; a pipe top cover is installed on the top of the upper round pipe flange 18; an adapter 22 is installed above the pipe top cover and fixed with bolts.

[0049] It is understandable that a nylon gasket needs to be fitted before the lower round pipe flange 17 is installed, the gasket is sealed with glue around its perimeter, and the lower round pipe cavity of the lower round pipe flange 17 is filled with polyurethane foam.

[0050] It is understandable that the adapter 22 can be connected to the photovoltaic module and the decorative panel aluminum alloy frame combination structure system.

[0051] Please see Figure 6In some embodiments, adjacent unit boards 11 are connected by longitudinal connectors along the width direction of the unit board 11. The longitudinal connectors include a second rock wool layer 23 between the ends of adjacent unit boards 11, the second rock wool layer 23 extending above the unit board 11, and a second TPO roll 24 located on the upper part of the second rock wool layer 23 and extending to the upper part of the adjacent unit board 11. The second TPO rolls 24 on both sides of the second rock wool layer 23 are hot-air welded to the corresponding unit boards 11.

[0052] Furthermore, the longitudinal connector also includes a third TPO roll 25 located above the second TPO roll 24. Both sides of the third TPO roll 25 extend beyond the sides of the second TPO roll 24, and the third TPO roll 25 extending beyond the sides of the second TPO roll 24 is hot-air welded to the corresponding unit plate 11.

[0053] Furthermore, a waterproof butyl tape 26 is provided between the second rock wool layer 23 and the second TPO roll 24.

[0054] It is understandable that the longitudinal connector has a slot-type structure.

[0055] Please see Figure 5 Furthermore, along the length of the unit panel 11, adjacent unit panels 11 are connected by a transverse connector. One of the unit panels 11 is provided with a snap-fit ​​component. The transverse connector includes a third rock wool layer 27 located within the snap-fit ​​component, and a composite metal fused TPO roof panel 7 located between the third rock wool layer 27 and another unit panel 11. The composite metal fused TPO roof panel 7 is connected to the corresponding structural frame 1 by a third screw 28 and a fourth screw 29, respectively.

[0056] Furthermore, a fourth TPO roll 30 is provided on the upper part of the composite metal fused TPO roofing panel 7 located between the third rock wool layer 27 and another unit panel 11. One side of the fourth TPO roll 30 extends to the upper part of the third rock wool layer 27, and the other side extends to the upper part of the other unit panel 11. A fifth screw 31 is provided between the fourth TPO roll 30 and the third rock wool layer 27. The fifth screw 31 extends to the structural frame 1 at the lower part of the snap-fit ​​member. The first extension 12 of the snap-fit ​​member is connected to the corresponding structural frame 1 by a sixth screw 32. The second extension 13 of the snap-fit ​​member overlaps the fifth screw 31 and the upper part of the fourth TPO roll 30. The second extension 13 and the fourth TPO roll 30 are connected by hot air welding. The fourth TPO roll 30 extends to the upper part of the other unit panel 11. The fourth TPO roll 30 and the upper part of the other unit panel 11 are connected by hot air welding.

[0057] Furthermore, a fifth TPO roll 33 is provided on the upper part of the fourth TPO roll 30. The two ends of the fifth TPO roll 33 extend to the upper part of one of the unit plates 11 and the upper part of the other unit plate 11, respectively. The fifth TPO roll 33 is hot-air welded to the upper part of one of the unit plates 11 and the upper part of the other unit plate 11, respectively.

[0058] It is understood that one of the unit panels 11, the other unit panel 11, and the composite metal fused TPO roofing panel 7 between them, i.e., the three composite metal fused TPO roofing panels 7, are integrally formed by welding two layers of TPO. After completion, there are three layers of TPO roll material from top to bottom.

[0059] It is understood that one of the unit plates 11 is provided with the snap-fit ​​component, and the other unit plate 11 adjacent to it has a flat side.

[0060] Furthermore, each of the unit panels 11 has a concave support aluminum plate 34 around the bottom of the structural frame 1, and an inverted concave support aluminum plate 35 is overlapped between adjacent concave support aluminum plates 34 between adjacent unit panels 11. A fourth rock wool layer 21 is provided between the inverted concave support aluminum plate 35 and the corresponding composite metal fused TPO roof panel 7 above it.

[0061] It is understandable that the concave support aluminum plate 35 provides support for the fourth rock wool layer 21.

[0062] It is understandable that the horizontal connector has a tongue-and-groove structure.

[0063] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0064] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

Claims

1. A unitized TPO roofing structure, characterized in that, include: The unit module includes a structural frame (1) and a functional layer filled in the structural frame (1). At least two composite metal fused TPO roof panels (7) are horizontally laid on the upper part of the functional layer and are connected by welding. A connecting component, comprising a horizontal connector and a vertical connector, wherein the horizontal connector is used for horizontal splicing of adjacent unit panels, and the vertical connector is used for vertical splicing of adjacent unit panels; The composite metal fused TPO roof panel (7) includes a metal profiled steel sheet (8), a first rock wool layer (9), and a zinc-aluminum-magnesium board and TPO roll fused layer (10) stacked in sequence. The structural frame (1) is provided with several crossbars (2) for supporting the functional layer. The functional layer includes a base plate (3), a vapor barrier (4), a sound-absorbing cotton layer (5), and a waterproof and breathable membrane (6) arranged sequentially from bottom to top. At least two composite metal fused TPO roof panels (7) are provided on the upper part of the waterproof and breathable membrane (6). Each of the composite metal fused TPO roof panels (7) is provided with a snap-fit ​​member on at least one side. The snap-fit ​​member includes a first extension (12) connected to the metal profiled steel sheet (8), the first extension (12) being a U-shaped metal profiled steel sheet, and a second extension (13) connected to the zinc-aluminum-magnesium sheet and the TPO roll fusion layer (10), the second extension (13) being a first TPO roll. Along the length of the unit panel (11), adjacent unit panels (11) are connected by a transverse connector. One of the unit panels (11) is provided with the snap-fit ​​component. The transverse connector includes a third rock wool layer (27) located within the snap-fit ​​component, and a composite metal fused TPO roof panel (7) located between the third rock wool layer (27) and another unit panel (11). The composite metal fused TPO roof panel (7) is connected to the corresponding structural frame (1) by a third screw (28) and a fourth screw (29). A fourth TPO roll (30) is provided on the upper part of the composite metal fused TPO roof panel (7) located between the third rock wool layer (27) and another unit panel (11). One side of the fourth TPO roll (30) extends to the upper part of the third rock wool layer (27), and the other side of the fourth TPO roll (30) extends to the upper part of another unit panel (11). A fifth screw (31) is provided between the fourth TPO roll (30) and the third rock wool layer (27). The fifth screw (31) extends to the structural frame (1) below the snap-fit ​​component. Above, the first extension (12) of the snap-fit ​​member is connected to the corresponding structural frame (1) by the sixth screw (32); the second extension (13) of the snap-fit ​​member overlaps the upper part of the fifth screw (31) and the fourth TPO roll (30), and the second extension (13) and the fourth TPO roll (30) are hot-air welded together; the fourth TPO roll (30) extends to the upper part of another unit plate (11), and the fourth TPO roll (30) and the upper part of the other unit plate (11) are hot-air welded together.

2. The unitized TPO roof structure according to claim 1, characterized in that, Weld a threaded base (16) onto the crossbar (2).

3. The unitized TPO roof structure according to claim 2, characterized in that, The first extension (12) is connected to the structural frame (1) by a first screw (14); after the adjacent composite metal fused TPO roof panel (7) is spliced ​​with the snap-fit, the adjacent composite metal fused TPO roof panel (7) is connected to the structural frame (1) by a second screw (15); and / or It also includes a roof support, and the threaded base (16) corresponding to the composite metal fused TPO roof panel (7) is provided with an opening. The roof support includes a lower round pipe flange (17), through which the lower round pipe flange (17) is passed and tightened to the corresponding threaded base (16). It also includes an upper round pipe flange (18), which is fixed to the lower round pipe flange (17) with M8 bolts (19). It also includes a sixth TPO roll seal (20), which is fitted onto the upper round pipe flange (18), tightened at the top with a snap fastener, and sealed with weather-resistant sealant. The lower part of the sixth TPO roll seal (20) is welded. A pipe top cover is installed on the top of the upper round pipe flange (18). An adapter (22) is installed above the pipe top cover and fixed with bolts.

4. The unitized TPO roof structure according to claim 3, characterized in that, The second extension (13) on one side of the second screw (15) is hot-air welded to the adjacent composite metal fused TPO roof panel (7).

5. The unitized TPO roof structure according to claim 1, characterized in that, Along the width direction of the unit plate (11), adjacent unit plates (11) are connected by a longitudinal connector. The longitudinal connector includes a second rock wool layer (23) between the ends of adjacent unit plates (11), the second rock wool layer (23) extending above the unit plate (11), and also includes a second TPO roll (24) located above the second rock wool layer (23) and extending to the upper part of the adjacent unit plate (11). The second TPO roll (24) on both sides of the second rock wool layer (23) is hot-air welded to the corresponding unit plate (11).

6. The unitized TPO roof structure according to claim 5, characterized in that, The longitudinal connector also includes a third TPO roll (25) located above the second TPO roll (24), the third TPO roll (25) extending on both sides beyond the sides of the second TPO roll (24), and the third TPO roll (25) beyond the sides of the second TPO roll (24) being hot-air welded to the corresponding unit plate (11); and / or A waterproof butyl tape (26) is provided between the second rock wool layer (23) and the second TPO roll (24).

7. The unitized TPO roof structure according to claim 1, characterized in that, Each unit panel (11) has a concave support aluminum plate (34) around the bottom of the structural frame (1). The concave support aluminum plates (34) of adjacent unit panels (11) are overlapped by an inverted concave support aluminum plate (35). A fourth rock wool layer (21) is provided between the inverted concave support aluminum plate (35) and the corresponding composite metal fused TPO roof panel (7) above it.

8. The unitized TPO roof structure according to claim 1, characterized in that, The upper part of the fourth TPO roll (30) is provided with a fifth TPO roll (33), and the two ends of the fifth TPO roll (33) extend to the upper part of one of the unit plates (11) and the upper part of the other unit plate (11), respectively. The fifth TPO roll (33) is hot-air welded to the upper part of one of the unit plates (11) and the upper part of the other unit plate (11), respectively.

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