A windproof perforated aluminum veneer metal roofing system and construction method thereof

Abstract

The invention discloses a windproof perforated aluminum veneer metal roof system and a construction method thereof. The main purlin of the lower layer of the roof of the windproof perforated aluminum veneer metal roof system is a square steel connected to a grid support stool, and the lower layer steel plate is integrally welded to the main steel structure; the secondary purlin support is connected to the lower layer steel main purlin of the roof by welding; the lower layer steel secondary purlin of the roof is connected to the secondary purlin support by bolts; the top support is a roof perforated aluminum veneer keel support and is rooted in the lower layer steel of the roof The upper surface of the secondary purlin; the corrugated steel plate is connected to the angle steel by rivets; the air-tight and moisture-proof membrane is laid on the corrugated steel plate; the thermal insulation rock wool board is laid on the air-tight and moisture-proof membrane; the waterproof membrane is laid on the air-tight and moisture-proof membrane; the upper main purlin of the roof is connected to the upper main purlin of the roof by welding; the upper purlin of the roof is connected to the secondary purlin support by bolts; the perforated aluminum single plate is overlapped with the top support by a bolt assembly.

Description

Technical Field

[0001] The invention relates to the technical field of public buildings in construction engineering, in particular to a windproof perforated aluminum single plate metal roofing system, and also to a construction method of the windproof perforated aluminum single plate metal roofing system. Background Art

[0002] A public building uses bionics to achieve a beautiful curved structure with the shape of blue waves and silver shells. It is designed as a metal roof system with light material and beautiful shape. It is a building roof system that uses perforated aluminum veneer as the main surface material and is connected to the main structure through supporting structural members. It has the specified bearing capacity, deformation capacity and ability to adapt to the displacement of the main structure, and meets the corresponding building function requirements.

[0003] The characteristics of perforated aluminum veneer metal roofing system are:

[0004] 1. Easy installation and simple structure;

[0005] 2. The roof is light in weight and has low requirements on the bearing capacity of the lower structure;

[0006] 3. The roof shape has strong plasticity;

[0007] 4. The force transmission path is simple and direct. Summary of the invention

[0008] To this end, the present invention provides a windproof perforated aluminum single plate metal roofing system to solve the above-mentioned problems in the prior art.

[0009] In order to achieve the above object, the present invention provides the following technical solutions:

[0010] According to a first aspect of the present invention, a windproof perforated aluminum veneer metal roof system comprises a lower steel main purlin of the roof, a lower steel plate, a secondary purlin support, a lower steel secondary purlin of the roof, a top support, a corrugated steel plate, a vapor barrier and moisture-proof membrane, an insulating rock wool board, a waterproof coil, an upper main purlin of the roof, an upper purlin of the roof, and a perforated aluminum veneer;

[0011] The main purlin of the lower layer of the roof is a square steel connected to the grid support stool, and the lower layer steel plate is integrally welded to the main steel structure; the secondary purlin support is connected to the lower layer steel main purlin of the roof by welding; the lower layer steel secondary purlin of the roof is connected to the secondary purlin support by bolts;

[0012] The top support is supported by the perforated aluminum veneer keel of the roof and is rooted on the upper surface of the steel secondary purlin of the lower layer of the roof; the corrugated steel plate is connected to the angle steel by rivets; the air-proof and moisture-proof membrane is laid on the corrugated steel plate; the thermal insulation rock wool board is laid on the air-proof and moisture-proof membrane; the waterproof coiled material is laid on the air-proof and moisture-proof membrane;

[0013] The upper main purlin of the roof is a square steel connected to the grid support stool; the upper purlin of the roof is connected to the upper main purlin of the roof by welding; the upper purlin of the roof is connected to the secondary purlin support by bolts; the perforated aluminum single plate is overlapped with the top support by a bolt assembly.

[0014] According to a second aspect of the present invention, a construction method of a windproof perforated aluminum veneer metal roofing system comprises the following steps:

[0015] Step S100, processing purlins and steel rectangular tubes;

[0016] Step S200, installing the lower main purlin and secondary purlin;

[0017] Step S300, installing the bottom plate corrugated steel plate;

[0018] Step S400, installing the air barrier membrane;

[0019] Step S500, installing thermal insulation rock wool;

[0020] Step S600, laying the waterproof membrane;

[0021] Step S700, installing the stainless steel clamp;

[0022] Step S800, installing steel plates and channel steel conversion parts;

[0023] Step S900, installing the upper main purlins and secondary purlins;

[0024] Step S1000: installing the perforated aluminum veneer.

[0025] Furthermore, step S100 specifically includes: according to the design deepening drawing, the main purlins are segmentedly produced according to the connection between the main purlin support and the ball node support of the grid frame, and the arc area is bent according to the purlin cutting size and the curvature of the arc by a stretch bending machine using electric energy through a hydraulic system to form an arc purlin.

[0026] Furthermore, step S200 specifically includes: error control of the main purlin and the secondary purlin, adjusting the height difference of the main purlin to ensure the smoothness of the curved surface, opening vertical long holes in the main purlin support plate, and opening vertical long holes in the secondary purlin support plate to ensure that the main purlin and the secondary purlin can be adjusted in error in the horizontal and vertical directions.

[0027] Furthermore, step S300 specifically includes: cutting the bottom plate corrugated steel plate to size according to the main purlin spacing of the design detailed drawing, the corrugated steel plate is installed on the angle steel of the purlin, the length of the corrugated steel plate is to span a purlin, and the overlap method of pressing up and down is adopted along the slope direction. The overlap length along the rib direction of the corrugated plate should not be less than 250mm, and the overlap connection is made in the plate width direction, and then fixed with carbon steel self-tapping screws.

[0028] Furthermore, step S400 specifically includes: laying the vapor barrier film along the crests and troughs of the corrugated board, the overlapping length of the material in the longitudinal and transverse directions should not be less than 100 mm, and the overlapping parts of the vapor barrier film are stapled with a stapler.

[0029] Furthermore, step S500 specifically includes: embedding rock wool under the secondary purlin surface, laying two layers with staggered seams to meet the air tightness of the system; and assembling tightly along the main purlin direction.

[0030] Furthermore, step S600 specifically includes: pre-laying, arranging the naturally loose coiled material on the base layer according to the contour so that it is flat and straight without distortion.

[0031] Further, step S700 specifically includes: a stainless steel clamp is installed at the end of the waterproof membrane, the end is sealed with weather-resistant glue, an aluminum-zinc-coated steel plate is laid on the upper layer, and the waterproof membrane is closed by the stainless steel clamp to divert rainwater.

[0032] Further, step S800 specifically includes: cutting the steel plate size according to the design deepening drawing, installing the steel plate on the stainless steel hoop, adopting the overlapping method of pressing up and down, the overlapping length along the rib direction of the corrugated plate should be not less than 250mm, overlapping connection in the plate width direction, and then fixing with carbon steel self-tapping screws;

[0033] Further, step S900 specifically includes: error control of primary and secondary purlins, adjusting the height difference of the primary purlins to ensure the smoothness of the curved surface, opening vertical long holes in the primary purlin support plate, and opening vertical long holes in the secondary purlin support plate, to ensure that the primary purlins and secondary purlins can be adjusted for errors in the horizontal and vertical directions;

[0034] Furthermore, step S1000 specifically includes: laying the metal panels in a sequence against the prevailing wind direction, not damaging the roof panels when laying the panels, overlapping the perforated aluminum panels through an aluminum alloy keel frame and a stainless steel hexagon socket bolt assembly, each pressure plate is fixed by two bolts, the lower layer is laid with an aluminum alloy pressure plate, the upper keel support is rooted in the upper surface of the lower purlin, and then the perforated aluminum panel aluminum alloy transverse and longitudinal primary and secondary keels are laid, and finally the perforated aluminum panel is overlapped on the keel.

[0035] The present invention has the following advantages:

[0036] 1. Compared with traditional metal roofing, this roofing system has fewer structural layers, a lighter roof, and lower requirements on the bearing capacity of the lower main steel structure.

[0037] 2. Compared with the traditional metal roof, the structure of the present invention adds a hollow perforated aluminum veneer as a decorative layer, which increases the aesthetics of the roof. At the same time, the change of the hollow height also improves the plasticity of the roof system shape change.

[0038] 3. The perforated aluminum veneer surface layer of the roof system is separated from other structural layers of the roof. The vibration of the perforated aluminum veneer surface layer is relatively independent under the action of wind load. The hollow design will greatly reduce the impact of wind load on the lower structural layer.

[0039] 4. The perforated aluminum veneer surface layer is first transferred to the secondary purlin and then to the main purlin by the purlin support, and the paving layer is directly transferred to the main purlin through the corrugated steel plate. The force transmission path is simple and direct. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the drawings required for the implementation methods or the prior art descriptions are briefly introduced below. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0041] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0042] Figure 1 A top view of the structure of a windproof perforated aluminum veneer metal roofing system provided in some embodiments of the present invention.

[0043] Figure 2 A three-dimensional axonometric schematic diagram of a standard structure of a windproof perforated aluminum veneer metal roofing system provided for some embodiments of the present invention.

[0044] Figure 3 A diagram of the steps for laying the lower steel main purlin and the lower steel secondary purlin of the roof in a construction method of a windproof perforated aluminum single plate metal roofing system provided in some embodiments of the present invention.

[0045] Figure 4 A diagram of the steps for laying secondary purlins in a construction method for a windproof perforated aluminum veneer metal roofing system provided in some embodiments of the present invention.

[0046] Figure 5 A diagram of the steps for laying a lower steel plate, a corrugated steel plate, a vapor-proof and moisture-proof membrane, an insulating rock wool board, and a waterproof membrane in a construction method of a windproof perforated aluminum veneer metal roofing system provided in some embodiments of the present invention.

[0047] Figure 6A diagram of the laying steps of the upper main purlin and the upper layer purlin of the roof in a construction method of a windproof perforated aluminum single plate metal roofing system provided in some embodiments of the present invention.

[0048] Figure 7 A diagram of the laying steps of perforated aluminum veneers in a construction method of a windproof perforated aluminum veneer metal roofing system provided in some embodiments of the present invention.

[0049] Figure 8 A flow chart of a construction method of a windproof perforated aluminum veneer metal roofing system provided for some embodiments of the present invention.

[0050] In the figure: 1. Perforated aluminum veneer, 2. Upper main purlin of the roof, 3. Waterproof membrane, 4. Thermal insulation rock wool board, 5. Vapor-proof and moisture-proof membrane, 6. Corrugated steel plate, 7. Skylight, 8. Internal gutter, 9. External gutter, 10. Aluminum roof. DETAILED DESCRIPTION

[0051] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] Example 1

[0053] like Figures 1 to 7As shown, a windproof perforated aluminum veneer 1 metal roofing system in an embodiment of the first aspect of the present invention includes, from bottom to top, a lower steel main purlin of the roof, a lower steel plate, a secondary purlin support, a lower steel secondary purlin of the roof, bolts, a top support, a corrugated steel plate 6, rivets, a vapor-proof and moisture-proof membrane 5, an insulating rock wool board 4, a waterproof membrane 3, a steel plate, a channel steel conversion part, an upper main purlin of the roof 2, an upper purlin of the roof, bolts, a fixed support, a pressing part, and a perforated aluminum veneer 1; the lower main purlin of the roof is square steel connected to the grid support stool; the lower steel plate has a specification of 300×300×10 and is integrally welded to the main steel structure; the secondary purlin support is made of steel and is processed from square steel plates and is connected to the lower steel main purlin of the roof by welding; the lower steel secondary purlin of the roof is square steel, which is connected to the secondary purlin support by bolts; the bolts are finished bolts used for The secondary purlin is connected to the secondary purlin support; the top support is the keel support of the perforated aluminum veneer 1 of the roof, rooted in the upper surface of the steel secondary purlin of the lower layer of the roof; the corrugated steel plate 6 is a punched corrugated steel plate 6, connected to the angle steel by rivets; the rivets are finished rivets used to connect the corrugated steel plate 6 with the angle steel; the air-proof and moisture-proof membrane is a finished product, laid on the corrugated steel plate 6; the thermal insulation rock wool board 4 is a finished product, laid on the air-proof and moisture-proof membrane 5; the waterproof membrane 3 is a TPO waterproof membrane laid on the air-proof and moisture-proof membrane 5, and closed by a stainless steel clamp; the upper main purlin 2 of the roof is square steel connected to the grid support stool; the upper purlin support of the roof is made of steel and processed from square steel plates, and is connected to the upper main purlin 2 of the roof by welding; the upper purlin of the roof is square steel, connected to the secondary purlin support by bolts; the perforated aluminum veneer 1 is overlapped with the top support by a bolt assembly.

[0054] The force transmission path of the metal roof is compressed from the original "stainless steel metal roof → flat steel plate → corrugated steel plate → '-shaped' lining purlin support → secondary purlin → main purlin" to "stainless steel metal roof → flat steel plate → secondary purlin → main purlin". The pavement layer is directly transmitted to the main purlin through the corrugated steel plate, and the force transmission is more direct and the force distribution is clearer. Purlin and steel rectangular tube processing → installation of lower main purlin and secondary purlin → installation of bottom plate corrugated steel plate → installation of vapor barrier membrane → thermal insulation rock wool board → waterproof membrane → installation of stainless steel hoop → installation of steel plate and channel steel conversion parts → installation of upper main and secondary purlins → installation of perforated aluminum veneer.

[0055] Figure 2 The standard structure of a windproof perforated aluminum single plate metal roof system is shown in a three-dimensional axial schematic diagram, including a skylight 7, an inner gutter 8, an outer gutter 9, and an aluminum plate roof 10.

[0056] The effects of the above embodiments are as follows: the perforated aluminum single sheet metal roofing system embeds the thicker metal roofing pavement layer that is not subject to stress between the main and secondary purlins, wherein the waterproof membrane is closed by a stainless steel clamp to ensure that the waterproof function of the roofing system is more complete; the perforated aluminum single sheet metal roofing system compresses the unnecessary links in the traditional stainless steel metal roofing system, making the structural system more compact.

[0057] Example 2

[0058] like Figures 3 to 8 As shown, a construction method of a windproof perforated aluminum veneer metal roofing system comprises the following steps:

[0059] Step S100, processing purlins and steel rectangular tubes; according to the design deepening drawing, the main purlins are segmented and manufactured according to the connection between the main purlin support and the truss ball node support stool. The arc area is bent by a bending machine using electric energy through a hydraulic system according to the purlin blanking size and arc curvature to form an arc purlin.

[0060] Step S200, installing the lower main purlin and secondary purlin; main purlin and secondary purlin error control, taking the main purlin height difference to ensure the smoothness of the curved surface, the main purlin support plate has a vertical long hole, the hole length is 35mm, and the adjustable range is ±16mm. The secondary purlin support plate also has a vertical long hole to ensure that the main purlin and secondary purlin can be adjusted in the horizontal and vertical directions.

[0061] Step S300, install the bottom plate corrugated steel plate; cut the bottom plate corrugated steel plate to size according to the main purlin spacing in the design deepening drawing, install the corrugated steel plate on the angle steel of the purlin, the length of the corrugated steel plate is to span one purlin, and the overlap method of pressing up and pressing down is adopted along the slope direction. The overlap length along the rib direction of the corrugated plate should be not less than 250mm, overlap in the plate width direction, and then fix with carbon steel self-tapping screws.

[0062] Step S400, install the vapor barrier membrane; the vapor barrier membrane is laid along the crests and troughs of the corrugated board, and the overlapping length of the material in the vertical and horizontal directions should not be less than 100 mm. The overlapping parts of the vapor barrier membrane are stapled with a stapler to ensure that the vapor barrier membrane is tightly overlapped to ensure the dust-proof effect of the vapor barrier membrane. After laying, the surface should be flat and tight without distortion.

[0063] Step S500, installing thermal insulation rock wool; the rock wool is embedded under the secondary purlin surface, and two layers are laid with staggered seams to ensure the air tightness of the system; the laying direction is along the main purlin direction, and the assembly is tight.

[0064] Step S600, laying of waterproofing membrane (TPO, thermoplastic polyolefin waterproofing membrane) TPO waterproofing membrane is first pre-laid, and the naturally loose membrane is arranged on the base layer according to the contour, flat and straight without distortion. The overlap width of the long and short sides of the membrane should be 120mm, the hot air welding width should be at least 40mm, and adjacent joints should be staggered 30cm.

[0065] Step S700, install the stainless steel clamp; the stainless steel clamp is manufactured by a professional roofing manufacturer and installed at the end of the 1.5mm thick TPO waterproof membrane. The end is sealed with weather-resistant glue. The upper layer is laid with a 300×300×10 aluminum-zinc-coated steel plate. The waterproof membrane is closed by the stainless steel clamp to divert rainwater, thereby achieving a waterproof effect.

[0066] Step S800, install the steel plate and channel steel conversion parts; cut the steel plate to size according to the design deepening drawing, install the steel plate on the stainless steel clamp, the steel plate size is 300×300×10, adopt the upper pressing and lower overlapping method, the overlapping length along the corrugated plate rib direction should be not less than 250mm, overlap in the plate width direction, and then fix with carbon steel self-tapping screws.

[0067] Step S900, install the upper main purlin and secondary purlin; the error control of the main and secondary purlins mainly adopts the adjustment of the height difference of the main purlin to ensure the smoothness of the curved surface. The main purlin support plate has a vertical long hole with a length of 35mm and an adjustable range of ±16mm. The secondary purlin support plate also has a vertical long hole to ensure that the main purlin and the secondary purlin can be adjusted in the horizontal and vertical directions.

[0068] Step S1000, install the perforated aluminum veneer; the metal panel paving sequence should be against the dominant wind direction, and the roof panel should not be damaged when paving. The perforated aluminum veneer is overlapped by the aluminum alloy keel frame and the stainless steel hexagon socket bolt assembly. Each pressing plate is fixed by two bolts, and the lower layer is laid with an aluminum alloy pressing plate with a diameter of 350mm. The upper keel support is rooted on the upper surface of the lower purlin, with a horizontal spacing of ≤4m and a vertical spacing of ≤3m. Then, the perforated aluminum veneer aluminum alloy horizontal and vertical primary and secondary keels are laid. Finally, 5mm perforated aluminum veneer is overlapped on the keel.

[0069] The technical effects achieved by the above embodiments are:

[0070] 1. Compared with traditional metal roofing, this roofing system has fewer structural layers, a lighter roof, and lower requirements on the bearing capacity of the lower main steel structure.

[0071] 2. Compared with the traditional metal roof, the structure of the present invention adds a hollow perforated aluminum veneer as a decorative layer, which increases the aesthetics of the roof. At the same time, the change of the hollow height also improves the plasticity of the roof system shape change.

[0072] 3. The perforated aluminum veneer surface layer of the roof system is separated from other structural layers of the roof. The vibration of the perforated aluminum veneer surface layer is relatively independent under the action of wind load. The hollow design will greatly reduce the impact of wind load on the lower structural layer.

[0073] 4. The perforated aluminum veneer surface layer is first transferred to the secondary purlin and then to the main purlin by the purlin support, and the paving layer is directly transferred to the main purlin through the corrugated steel plate. The force transmission path is simple and direct.

[0074] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

[0075] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as within the scope of implementation of the present invention without substantially changing the technical content.

Claims

1. A windproof perforated aluminum veneer metal roofing system, characterized in that: Including the lower steel main purlin of the roof, the lower steel plate, the secondary purlin support, the lower steel secondary purlin of the roof, bolts, top supports, corrugated steel plates, rivets, vapor and moisture barrier membranes, thermal insulation rock wool boards, waterproof membranes, steel plates, channel steel conversion parts, the upper main purlin of the roof, the upper purlin of the roof, fixed supports, pressed parts and perforated aluminum veneers; The lower steel main purlin of the roof is a square steel connected to the grid support stool, and the lower steel plate is integrally welded to the main steel structure; the secondary purlin support is connected to the lower steel main purlin of the roof by welding; the lower steel secondary purlin of the roof is connected to the secondary purlin support by bolts; The top support is supported by the perforated aluminum veneer keel of the roof and is rooted on the upper surface of the lower steel purlin of the roof; the corrugated steel plate is connected to the angle steel by rivets; the vapor-proof and moisture-proof membrane is laid on the corrugated steel plate; the thermal insulation rock wool board is laid on the vapor-proof and moisture-proof membrane; the waterproof coiled material is laid on the vapor-proof and moisture-proof membrane; The upper main purlin of the roof is a square steel connected to the grid support stool; the upper purlin of the roof is connected to the upper main purlin of the roof by welding; the upper purlin of the roof is connected to the secondary purlin support by bolts; the perforated aluminum single plate is overlapped with the top support by a bolt assembly.

2. A construction method for a windproof perforated aluminum veneer metal roofing system, characterized in that: The following steps are involved: Step S100, processing purlins and steel rectangular tubes; according to the design deepening drawing, the main purlins are segmented and manufactured at the connection points of the main purlin support of the grid ball node support stool, and the arc area is bent by a bending machine using electric energy through a hydraulic system according to the purlin blanking size and arc curvature to form an arc purlin; Step S200, installing the lower main purlin and secondary purlin; controlling the error of the main purlin and secondary purlin, adjusting the height difference of the main purlin to ensure the smoothness of the curved surface, opening vertical long holes on the main purlin support plate, and opening vertical long holes on the secondary purlin support plate, to ensure that the error of the main purlin and secondary purlin can be adjusted in the horizontal and vertical directions; Step S300, installing the bottom plate corrugated steel plate; cutting the bottom plate corrugated steel plate according to the main purlin spacing of the design deepening drawing, installing the corrugated steel plate on the angle steel of the purlin, the length of the corrugated steel plate is to span a purlin, and the overlap method of pressing up and down is adopted along the slope direction. The overlap length along the rib direction of the corrugated plate should be not less than 250mm, and the plate width direction is overlapped and connected, and then fixed with carbon steel self-tapping screws; Step S400, installing the vapor barrier and moisture-proof membrane; the vapor barrier membrane is laid along the crests and troughs of the corrugated board, the overlapping length of the material in the longitudinal and transverse directions should not be less than 100 mm, and the overlapping parts of the vapor barrier membrane are stapled; Step S500, installing thermal insulation rock wool; the rock wool is embedded under the secondary purlin surface, and two layers are laid with staggered seams to ensure the air tightness of the system; the laying direction is along the main purlin direction and assembled tightly; Step S600, laying the waterproofing coiled material; pre-laying, arranging the naturally loose coiled material on the base layer according to the contour, making it flat and straight without distortion; Step S700, installing a stainless steel clamp; the stainless steel clamp is installed at the end of the waterproof coil, the end is sealed with weather-resistant glue, and the upper layer is paved with aluminum-zinc-plated steel plate. The waterproof coil is closed by the stainless steel clamp to divert rainwater; Step S800, install the steel plate and channel steel conversion parts; cut the steel plate size according to the design deepening drawing, install the steel plate on the stainless steel hoop, adopt the upper pressing and lower overlapping method, the overlapping length along the rib direction of the corrugated plate should be not less than 250mm, overlap in the plate width direction, and then fix with carbon steel self-tapping screws; Step S900, installing the upper main purlin and secondary purlin; controlling the error of the main and secondary purlins, adjusting the height difference of the main purlin to ensure the smoothness of the curved surface, opening vertical long holes on the main purlin support plate, and opening vertical long holes on the secondary purlin support plate, to ensure that the main purlin and secondary purlin can be adjusted in error in the horizontal and vertical directions; Step S1000, install the perforated aluminum veneer; the metal panels are laid in the order of laying against the prevailing wind direction, and the roof panels should not be damaged when laying the panels. The perforated aluminum veneer is overlapped by an aluminum alloy keel frame and a stainless steel hexagon socket bolt assembly. Each pressure plate is fixed by two bolts. The lower layer is laid with an aluminum alloy pressure plate, and the upper keel support is rooted in the upper surface of the lower purlin. Then, the perforated aluminum veneer aluminum alloy transverse and longitudinal primary and secondary keels are laid, and finally the perforated aluminum veneer is overlapped on the keel.

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