Profiled steel sheet installation and construction process

Abstract

The invention discloses a profiled steel sheet installation construction technology, and relates to the field of profiled steel sheet installation, the profiled steel sheet installation construction technology comprises a profiled steel sheet, a roof support and a wall panel, the profiled steel sheet can form a roof panel after being pressed, the roof panel is laid on the top of the roof support, and heat preservation cotton and a PVC film are arranged between the roof panel and the roof support; the PVC film covers the top of the heat preservation cotton, the roof support comprises cornice purlines and a plurality of purlines, and a steel wire mesh is arranged between the heat preservation cotton and the purlines. The profiled steel sheet installation construction technology comprises the steps of early-stage material preparation, machining equipment arrangement, reinforcing material laying, heat preservation and waterproof material laying and roof panel laying, in the subsequent implementation process, through sequential laying and connection of a roof support and a roof panel, the structural condition for releasing thermal expansion and cold contraction internal stress can be fully provided, and the construction efficiency is improved. And compared with a traditional general roof system, the wind resistance is high, and the weather resistance is excellent.

Description

Technical Field

[0001] This invention relates to the field of profiled steel sheet installation, and in particular to a profiled steel sheet installation construction process. Background Technology

[0002] Existing metal roofing systems are building envelope structures using lightweight, high-strength profiled metal sheets such as titanium-zinc, copper, and aluminum alloys as the surface material. Common materials include aluminum-magnesium-manganese alloy sheets and aluminum-zinc coated profiled steel sheets. The system is classified into types such as standing edge interlocking, standing seam locking, and flat interlocking according to its structure. The overall structure consists of purlins, base plate, waterproof layer, insulation layer, and panels, and adopts a structural waterproof design. The standing edge interlocking system achieves overall waterproofing through mechanical interlocking and is suitable for typhoon-prone areas.

[0003] However, existing metal roofing systems still have some shortcomings in the construction process, particularly regarding the installation methods and assembly of roof panels formed by pressing profiled steel sheets. For example, when laying insulation cotton on the roof frame, there is often an overemphasis on the horizontal and upright position of the insulation cotton, which reduces the amount of non-flowing air within the insulation cotton, lowers the insulation effect, and exceeds the tensile strength of the insulation cotton, causing the surface to crack. Secondly, the connection strength between the insulation surface and the roof frame lacks enhancement, resulting in poor adhesion. Furthermore, the waterproofing effect between the roof panels and existing wall panels after installation often relies on a single sealing structure, which not only provides a poor seal but is also prone to leakage due to structural fatigue, requiring further improvement. Summary of the Invention

[0004] This application proposes a construction process for installing profiled steel sheets, which solves the technical problems mentioned in the background.

[0005] To achieve the above objectives, this application adopts the following technical solution: a profiled steel sheet, comprising a profiled steel sheet, a roof support, and a wall panel. The profiled steel sheet is pressed to form a roof panel. The roof panel is laid on top of the roof support, and insulation cotton and PVC film are provided between the roof panel and the roof support. The PVC film covers the top of the insulation cotton. The roof support includes eaves purlins and several purlins. A wire mesh is provided between the insulation cotton and the purlins. The several purlins are arranged at equal intervals along the surface of the eaves purlins, and the purlin closest to the side of the eaves purlin is designated as the eaves purlin. An eaves pad is provided between the top of the eaves purlin and the wall panel. The eaves pad is installed to the corresponding side of the roof panel by fasteners, and an eaves trim is provided between the outer surface of the wall panel and the corresponding side of the eaves pad.

[0006] The eaves trim and eaves pad provided by this invention can significantly improve the connection strength between the roof panel and the purlin while ensuring the sealing effect of the roof structure and extending the service life of the roof structure during the installation of roof panels made of profiled steel sheets and pressed on site.

[0007] Preferably, the eaves pad is provided with screw holes, and the fasteners include pressure strips and positioning screws. When assembling the roof panel and the eaves pad, the pressure strip is placed on the top of the corresponding side of the roof panel, and one end of the positioning screw passes through the pressure strip and the corresponding side of the roof panel and is then threadedly connected to the screw hole in the eaves pad.

[0008] Preferably, the eaves pad is fitted with a plurality of eaves end caps, and the positioning space for the roof panel is formed between two adjacent eaves end caps.

[0009] Preferably, the top of the eaves purlin is provided with a gable starting Z-shaped steel, and the gable starting Z-shaped steel can be fitted and positioned with the mother rib inside the first roof panel when the first roof panel is laid.

[0010] Preferably, the assembly formed by the thermal insulation cotton and the PVC film has a positioning step hole, and a positioning component extending to the top of the corresponding purlin is fitted inside the positioning step hole. The gap between the positioning component and the positioning step hole is filled with a waterproof adhesive layer for sealing.

[0011] Preferably, the positioning assembly includes a positioning sleeve, a screw rod, a sealing washer ring, and an internally threaded sleeve. One end of the top of the screw rod is fitted inside the middle of the positioning sleeve, and the internally threaded sleeve is threaded onto the surface of the top end of the screw rod and limits and locks the fitting of the positioning sleeve and the screw rod. One end of the bottom of the screw rod is threaded onto the top inside of the purlin, and the sealing washer ring is fixed to the top of the positioning sleeve and tightly adheres to the surface of the PVC film.

[0012] Preferably, the waterproof adhesive layer is specifically filled in the fitting gap between the positioning sleeve and the positioning step hole, and the fitting gap between the screw rod and the positioning step hole, and the bottom surface of the sealing gasket ring and the top surface of the PVC film are integrally connected by hot air welding.

[0013] Preferably, the top of the screw rod has an internal hexagonal groove, and buffer components are fitted inside both sides of the positioning sleeve, with clearance space between the buffer components and one end of the top of the screw rod.

[0014] Preferably, the buffer assembly is composed of a composite buffer structure, which includes a curved support plate. The bottom of the curved support plate is fitted inside the positioning sleeve via a pin, and a torsion spring is fitted outside the end of the pin. The two ends of the torsion spring are respectively fixed to the surface of the bottom of the curved support plate and the inner wall of the positioning sleeve. A damping ring is fitted inside the top of the curved support plate via a pin, and the damping ring can roll and rub against the roof panel covering the top of the PVC film.

[0015] Preferably, the installation process for the profiled steel sheet includes the following steps:

[0016] The first step is to prepare materials and arrange processing equipment.

[0017] The preliminary material preparation and equipment arrangement specifically include positioning the steel coils, roof pressing machine and lifting equipment, and hoisting the insulation cotton and PVC film onto the roof. The roof panels are specifically made by high-altitude forming, that is, the roof panels are made on the roof to be laid using the roof pressing machine and lifting equipment.

[0018] The second step is to lay the reinforcing material;

[0019] The reinforcement material specifically includes laying a wire mesh on top of several purlins before laying the insulation cotton, and the surface of the wire mesh is coated with a corrosion-resistant coating.

[0020] The third step is to lay insulation and waterproofing materials;

[0021] The laying sequence of the insulation and waterproofing materials is as follows: first, lay the insulation cotton on the wire mesh, and the laying should follow the principle of flatness and natural and even hanging. The PVC film is laid between the insulation cotton and the roof panel formed by the profiled steel sheet.

[0022] The fourth step is to lay the roof panels;

[0023] The installation of roof panels specifically includes roof panel preparation, fastener fixing, roof panel fixing, roof panel seam locking, ridge cap installation, and debris removal. The roof panel installation tools include calipers, manual seam locking machine for eaves, seam locking machine, and lateral overlap plates. The lateral overlap plates ensure the firmness of the lateral overlap of the roof panels, and the lateral overlap plates are fastened to the corresponding purlins in the vertical joints created during subsequent installation using self-drilling screws.

[0024] In summary, the present invention has the following beneficial effects:

[0025] 1. The profiled steel sheet installation process provided by this invention includes preliminary material preparation and arrangement of processing equipment, laying of reinforcing materials, laying of thermal insulation and waterproofing materials, and laying of roof panels. In subsequent implementation, the roof supports and roof panels are laid and connected in sequence, which can fully provide structural conditions for releasing thermal expansion and contraction internal stress. Compared with traditional general roofing systems, it has high wind resistance and excellent weather resistance.

[0026] 2. The eaves trim, eaves pad, eaves inner end cap, gable starting Z-shaped steel, and pressure strip of this invention form a multi-functional installation structure. In the subsequent process of laying roof panels using profiled steel sheets as raw materials and pressing them on site, it can fully improve the connection strength between the roof panels and purlins while ensuring the sealing effect of the roof structure and extending the service life of the roof structure.

[0027] 3. The positioning component of this invention can strengthen and seal the connection between the insulation cotton and the PVC film before the roof panel is laid. After the roof panel is laid and used, the damping ring in the positioning component, supported by the corresponding curved support plate and the corresponding pin, dampes and buffers the roof panel and dissipates rolling friction energy, thus fully optimizing the performance of the roof panel. Attached Figure Description

[0028] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0029] Figure 2 This is a three-dimensional schematic diagram of the thermal insulation cotton in this invention;

[0030] Figure 3 This is a schematic diagram of the laying of profiled steel sheets in this invention;

[0031] Figure 4 This is a schematic diagram of the installation of the end cap block in this invention;

[0032] Figure 5 This is a flowchart illustrating the installation and construction process of the present invention;

[0033] Figure 6 This is a schematic diagram of the installation of the end cap block in this invention;

[0034] Figure 7 This is a flowchart illustrating the installation and construction process of this invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Corrugated steel sheet; 2. Eaves purlin; 3. Thermal insulation cotton; 4. PVC film; 5. Purlin; 6. Eaves pad; 7. Eaves inner end cap; 8. Gable wall starting Z-shaped steel; 9. Pressure strip; 10. Wall panel; 11. Eaves trim; 12. Positioning sleeve; 13. Waterproof adhesive layer; 14. Screw rod; 15. Sealing gasket ring; 16. Composite buffer structure; 161. Curved support plate; 162. Torsion spring; 163. Damping ring; 17. Internal threaded sleeve. Detailed Implementation

[0037] like Figures 1-4 A profiled steel sheet includes a profiled steel sheet 1, a roof support, and a wall panel 10. The profiled steel sheet 1 can be formed into a roof panel after being pressed. The roof panel is laid on top of the roof support, and insulation cotton 3 and PVC film 4 are provided between the roof panel and the roof support. The PVC film 4 covers the top of the insulation cotton 3. The roof support includes eaves purlins 2 and several purlins 5. A wire mesh is provided between the insulation cotton 3 and the purlins 5. Several purlins 5 are arranged at equal intervals along the surface of the eaves purlins 2, and the purlin 5 closest to the side of the eaves purlins 2 is designated as the eaves purlin. An eaves pad 6 is provided between the top of the eaves purlin and the wall panel 10. The eaves pad 6 is installed with the corresponding side of the roof panel by fasteners, and an eaves trim 11 is provided between the outer surface of the wall panel 10 and the corresponding side of the eaves pad 6.

[0038] The eaves pad 6 is provided with screw holes, which provides convenient assembly conditions for the spiral connection of subsequent related structures. The fasteners include pressure strip 9 and positioning screws. When assembling the roof panel and the eaves pad 6, the pressure strip 9 is covered on the top of the corresponding side of the roof panel and one end of the positioning screw passes through the pressure strip 9 and the corresponding side of the roof panel and is then threaded into the screw hole in the eaves pad 6. This provides convenient and pressure-limiting positioning for the eaves pad 6 and the roof panel, thereby fully ensuring the structural stability and reliability of the subsequent arrangement and laying of multiple roof panels on the eaves pad 6.

[0039] The eaves pad 6 has several eaves end caps 7 inside, and the two adjacent eaves end caps 7 form a positioning space for the roof panel. This plays an important role in controlling the width of the roof panel. Secondly, the multiple and equidistant eaves end caps 7 can also play a positioning assistance role in the laying of multiple roof panels on the roof support, thereby further optimizing the installation and construction process of multiple roof panels and optimizing the use effect of the structure.

[0040] The top of the eaves purlin 2 is provided with a gable starting Z-shaped steel 8, which can be fitted and positioned with the mother rib inside the first roof panel when the first roof panel is laid. This ensures the smooth installation of the starting node in the process of laying multiple roof panels. Secondly, it can also serve as a reinforcing structure to further enhance the connection strength between the eaves purlin 2 and the roof panel, thereby further optimizing the structural performance of the overall metal roofing system.

[0041] In use, the pressure strip 9 and the corresponding multiple screws can ensure a high-strength connection between the roof panel and the purlin 5, which serves as the eaves purlin. The multiple pre-embedded eaves end caps 7 can serve as positioning conditions to ensure the accuracy of subsequent roof panel laying. The further set gable wall starting Z-shaped steel 8 can be fitted and positioned with the mother rib inside the first roof panel when the first roof panel is laid, thereby ensuring the smooth installation of the starting node in the installation process of multiple roof panels.

[0042] like Figures 6-7 The assembly formed by the thermal insulation cotton 3 and the PVC film 4 has a positioning step hole, and a positioning component extending to the top of the corresponding purlin 5 is installed in the positioning step hole. The gap between the positioning component and the positioning step hole is filled with a waterproof adhesive layer 13 for sealing, thereby improving the connection strength between the thermal insulation cotton 3 and the PVC film 4 while ensuring the sealing effect of the connection between the related structure and the thermal insulation cotton 3 and the PVC film 4.

[0043] The positioning assembly includes a positioning sleeve 12, a screw rod 14, a sealing gasket ring 15, and an internally threaded sleeve 17. One end of the top of the screw rod 14 is fitted inside the middle of the positioning sleeve 12, and the internally threaded sleeve 17 is threaded to the surface of the top end of the screw rod 14 and limits and locks the fitting of the positioning sleeve 12 and the screw rod 14. One end of the bottom of the screw rod 14 is threaded to the top inside of the purlin 5. The sealing gasket ring 15 is fixed to the top of the positioning sleeve 12 and is tightly attached to the surface of the PVC film 4. Thus, the multiple locking method fully ensures the connection strength between the insulation cotton 3 and the purlin 5, and the connection strength between the insulation cotton 3 and the PVC film 4.

[0044] The waterproof adhesive layer 13 is specifically filled in the fitting gap between the positioning sleeve 12 and the positioning step hole, and the fitting gap between the screw rod 14 and the positioning step hole. The bottom surface of the sealing gasket ring 15 and the top surface of the PVC film 4 are integrally connected by hot air welding, which further improves the sealing effect of the structural connection between the two.

[0045] The top of the screw rod 14 has an internal hexagonal groove to provide clearance for subsequent tightening, and the inside of both sides of the positioning sleeve 12 is fitted with a buffer assembly, and there is clearance between the buffer assembly and one end of the top of the screw rod 14.

[0046] The buffer assembly consists of a composite buffer structure 16, which includes a curved support plate 161. The bottom of the curved support plate 161 is fitted inside the positioning sleeve 12 via a pin, and a torsion spring 162 is fitted outside the end of the pin. The two ends of the torsion spring 162 are respectively fixed to the bottom surface of the curved support plate 161 and the inner wall of the positioning sleeve 12. A damping ring 163 is fitted inside the top of the curved support plate 161 via a pin, and the damping ring 163 can roll and rub against the roof panel covering the top of the PVC film 4. Thus, after the subsequent roof panel is laid, it can provide friction energy dissipation and damping buffer protection against the vibrations suffered by the subsequent roof panel during use.

[0047] In use, after the insulation cotton 3 and PVC film 4 are laid and the positioning step hole is completed, a waterproof adhesive layer 13 is applied to the inner wall of the positioning step hole. Then, the assembly formed by the positioning sleeve 12, screw rod 14, and purlin 5 is randomly fitted into the positioning step hole, with one end of the screw rod 14 threaded into the corresponding pre-set screw hole of the purlin 5. Next, the internal thread sleeve 17 is screwed to lock the internal thread sleeve 17 with the top end of the screw rod 14. The positioning sleeve 12 and the waterproof adhesive layer 13 are then pressed down to ensure that the sealing gasket 15 and PVC film 4 are properly aligned. The C-membrane 4 is bonded together, and then integrated by hot air welding to further improve the sealing effect of the connection between the two structures. This improves the connection strength between the insulation cotton 3 and the PVC membrane 4 while maintaining the sealing effect of the combination of the insulation cotton 3 and the PVC membrane 4. After the roof panel is laid and used, the damping ring 163 will dampen and buffer the roof panel and dissipate rolling friction energy under the support of the curved support plate 161 and the corresponding pin, so as to fully optimize the use effect of the roof panel.

[0048] like Figure 5 The installation process for this profiled steel sheet includes the following steps:

[0049] The first step is to prepare materials and arrange processing equipment.

[0050] The preliminary material preparation and equipment arrangement specifically include positioning the steel coils, roof pressing machine and lifting equipment, and hoisting the insulation cotton 3 and PVC film 4 onto the completed roof. The roof panels are specifically made using a high-altitude forming method. The profiled steel sheet 1 used as the raw material for the roof panels is made of 0.6mm thick 350MPa aluminized zinc-magnesium steel sheet, which has excellent weather resistance. The roof panels are made on the roof to be laid using the roof pressing machine and lifting equipment, thereby achieving a modular assembly operation effect. This further improves the work efficiency and also allows for the timely detection and replacement of unqualified roof panels during the actual processing, thereby reducing subsequent maintenance losses.

[0051] The second step is to lay the reinforcing material;

[0052] The reinforcement material installation specifically includes laying wire mesh on top of several purlins 5 before laying the insulation cotton 3. The surface of the wire mesh is coated with a corrosion-resistant coating, which can further extend the service life of the wire mesh and thus indirectly reduce the cost of use.

[0053] Before laying the thermal insulation cotton 3, steel wire mesh is first laid on the top surface between the roof layers. After the subsequent structural layers are assembled, the steel wire mesh connects the expansion and contraction differences of different materials such as concrete and masonry blocks, making the roof panel and the base layer form a whole. This reduces the risk of cracks caused by thermal expansion and contraction, enhances adhesion, and, as a skeleton, increases the bond between cement mortar and the base layer, preventing mortar layer detachment or hollowing, improving the durability of the roof panel. In earthquakes and other disasters, the steel wire mesh can reduce the risk of separation between the roof panel and the base layer, and reduce secondary injuries caused by mortar layer detachment.

[0054] The third step is to lay insulation and waterproofing materials;

[0055] The order of laying the insulation and waterproofing materials is as follows: first, lay the insulation cotton 3 on the wire mesh, and follow the principle of flat, natural and even hanging when laying. Then, lay the PVC film 4 between the insulation cotton 3 and the roof panel formed by the profiled steel sheet 1.

[0056] More specifically, after the wire mesh is laid, the insulation cotton 3 will be laid on top of the wire mesh to provide insulation for the roof support. During the specific laying process of the insulation cotton 3, the principle of flatness and natural and even drooping should be followed. Excessive emphasis on the horizontal and upright position of the insulation cotton 3 may lead to a reduction in the amount of non-flowing air in the insulation cotton 3, reducing the insulation effect and exceeding the tensile strength of the insulation cotton 3, causing the surface to crack. Secondly, the insulation cotton 3 should be protected from dirt and moisture, and the surface should be protected from damage. Any damage should be repaired in time. Furthermore, the insulation cotton 3 of two adjacent strips should be close together, and the adjacent contact surfaces of the two insulation cotton 3 should be connected and adhered to ensure the structural stability of multiple insulation cotton 3 after subsequent laying and installation.

[0057] After the insulation cotton 3 is laid, the PVC film 4 is laid on top of the insulation cotton 3. The PVC film 4 then protects the insulation cotton 3 from dirt and moisture, thereby extending the service life of the insulation cotton 3 and reducing the chance of the insulation cotton 3 being damaged or ineffective due to the dampness or dirt in the environment, thus reducing the cost of using the insulation cotton 3.

[0058] The fourth step is to lay the roof panels;

[0059] S1. Laying roof panels specifically includes roof panel installation preparation.

[0060] First, the installation of the roof panels must be carried out in strict accordance with relevant regulations and construction drawings. The most important part is the verification of the building's squareness. Specifically, the first step in the successful installation of the roof support and the corresponding walls is to ensure that the roof support is vertical and square. To achieve the best results, a theodolite is used when installing the steel structure. In actual operation, when any lifting equipment is used for hoisting and moving, people should stand at a certain distance and keep their hands and feet away from the moving goods.

[0061] Secondly, unique lateral overlap plates are used to ensure the firmness of the lateral overlap of the roof panels. Special connecting plates are used to connect the roof panels and the supporting structure. The lateral overlap plates are connected in the vertical joint and fastened to the corresponding purlin 5 with self-drilling screws. To properly install the roof panels, specially designed tools are required. The roof panel installation tools include calipers, eaves manual locking machine, and locking machine.

[0062] Furthermore, the roof panels are pressed using a high-altitude forming method. The roof panel pressing equipment is lifted to the adjacent roof structure as an auxiliary support. Then, multiple profiled steel sheets are hoisted onto the adjacent roof structure in sequence using hoisting equipment. This allows for the direct fabrication of roof panels at a high altitude, enabling the timely detection of defective roof panels and subsequent replacement or rework, thus significantly reducing the likelihood of malfunctions caused by problems with the roof panels themselves.

[0063] S2, Fasteners

[0064] First, the eaves pad 6, as a structural condition that provides reliable support for the eaves end of the roof panel, must be installed at the junction of the purlin 5 (which serves as the eaves purlin) and the wall panel 10 before the roof panel is installed. Before the actual installation of the eaves pad 6, the installation error of the eaves pad 6 must be checked. If necessary, appropriate shims can be used to ensure the straightness of the structure of the eaves pad 6. Considering the construction difficulty and work efficiency, the connection between the purlin 5 (which serves as the eaves purlin) and the wall panel 10 and the eaves pad 6 can be fixed by welding. This ensures the connection strength between the two structures of the purlin 5 and the wall panel 10 and the eaves pad 6 while improving assembly efficiency.

[0065] Secondly, before installing the initial roof panel, several eaves inner plugs 7 must be arranged and installed on the eaves pad 6. During the specific installation process, the distance between two adjacent eaves inner plugs 7 should be measured with a tape measure to ensure that two eaves inner plugs 7 are grouped together, and the distance between two eaves inner plugs 7 in each group is 490mm. In the subsequent assembly process, the eaves inner plugs 7 play an important role in controlling the width of the roof panel. Therefore, it is necessary to install the corresponding number of eaves inner plugs 7 for 3 to 5 roof panels in advance.

[0066] Furthermore, after the eaves pad 6 and the eaves inner end cap 7 are assembled, the eaves trim 11 set between the wall panel 10 and the eaves pad 6 is laid. Specifically, the standard length of the eaves trim 11 is 6000mm. Adjacent eaves trims 11 are connected in an integrated manner by overlapping. The upper end of the eaves trim 11 is placed on the corresponding eaves pad 6, and the lower end of the eaves trim 11 is tightly attached to the corresponding wall panel 10. During further assembly, the end of the eaves trim 11 should be aligned with the end of the corresponding eaves pad 6. In the specific connection process, the eaves trim 11 and the eaves pad 6 can be temporarily fixed by using edge rivets. Thus, after the eaves trim 11 is laid, the eaves trim 11 will provide waterproof protection between the roof panel and the wall panel 10. All overlaps of the eaves trim 11 must be sealed with polyurethane sealant and connected with rivets.

[0067] Subsequently, to further improve the sealing and waterproofing effect of the eaves trim 11, butyl sealant can be applied to the eaves trim 11. The center of the butyl sealant should be aligned with the center line of the shoulder of the roof panel. At this time, the protective film should not be removed. Before the roof panel is installed, the sealant of the eaves trim 11 is easily damaged. Therefore, do not step on it or drag objects on the butyl sealant. The installation of the roof panel must be carried out in strict accordance with relevant regulations to avoid or reduce damage to the surface of the profiled steel sheet 1 and ensure the reliability of the overall structure in subsequent use.

[0068] S3, Roof panel fixing

[0069] After positioning the pressure strip 9 and the corresponding screws, first install the starting Z-shaped steel 8 of the gable wall. The reason is that the starting Z-shaped steel 8 of the gable wall determines the layout of the starting roof panel, and the installation accuracy is very important. The starting Z-shaped steel 8 of the gable wall is a pre-punched long elliptical component and is fixed with long hole limit nails. When fixing the long hole limit nails, long sleeves should be used to avoid the electric drill gun tilting and colliding with the starting Z-shaped steel of the gable wall, which would cause the screws to shift.

[0070] Next, the initial roof panel is installed. Specifically, the initial roof panel is lifted so that the rib hooks onto the upper structure of the initial Z-shaped steel 8 on the gable wall. Then, it is checked whether the rib inside the initial roof panel is connected to the initial Z-shaped steel 8 on the gable wall. After confirmation, the initial roof panel is lowered and placed flat on the PVC film 4. Then, the verticality of the initial roof panel is checked. After passing the check, the pressure strip 9 and corresponding screws are nailed to the roof panel for positioning. This will guide the installation of subsequent roof panels.

[0071] In actual operation, it is strictly forbidden to reverse the order when installing the starting panel on site. That is, install the first roof panel first and then install the starting Z-shaped steel 8 of the gable wall. This will cause the starting node to fail to be installed smoothly, and the subsequent roof panels will be continuously laid and installed until the entire roof panel is installed.

[0072] In the specific implementation process, soft slings are used for the roof panels formed by profiled steel sheet 1 during hoisting. Before use, the slings are checked for damage. After the roof is laid, no protruding panels are allowed. Unused roof panels are tied with ropes. Scrap materials are collected by designated personnel to prevent them from being blown down by the wind and injuring people.

[0073] S4, Roof panel seam

[0074] The roof panels are sealed using equipment such as calipers, manual seam locking machines, and seam locking machines to further ensure the structural strength of the roof panels. High-precision pre-punching technology and stainless steel bolts are used at the eaves, overlaps, and ridges to ensure excellent waterproof performance.

[0075] S5. Installation of ridge cap;

[0076] S6. Debris Cleaning

[0077] Both unused and unused screws must be placed in a special container for hoisting and must not be thrown around. They must be placed in a special iron bucket. Unused screws must be returned to the tool room in a timely manner to prevent loose screws from being kicked and causing injury.

[0078] Roof panel installation is a high-altitude operation. Every construction worker must wear a safety belt and non-slip shoes. The safety belt is fixed to the corresponding purlin 5. If necessary, it is locked to the corresponding purlin 5 with a wire rope for the safety belt to be fixed. When laying the roof panels, construction should be stopped in case of strong winds or heavy rain.

[0079] Before leaving get off work each day, tie the roof panels to the corresponding purlins 5 with heddles. The tying should be secure to prevent them from being blown off by strong winds. It is strictly forbidden to walk on single roof panels or several roof panels stacked together that are not fixed to purlins 5. When installing roof panels, you can consider using a step stool. At the same time, in order to reduce the risk of slipping due to oil on the roof panels, the roof panels stacked together should be separated in time to allow the oil on each roof panel to evaporate before placing the roof panels on the purlins.

[0080] In the area where roof panels are to be laid, all debris generated during cutting and screw fixing, as well as any remaining debris and waste on the roof, floor, and gutters, must be cleaned up before the end of the workday. Any leftover materials from cutting during construction must be collected and piled up daily, and all remaining waste must be cleaned up before completion. Safety nets and lifelines must be installed during roof panel construction.

Claims

1. A profiled steel sheet, comprising a profiled steel sheet (1), a roof support, and a wall panel (10), wherein the profiled steel sheet (1) can be formed into a roof panel after being pressed, characterized in that: The roof panel is laid on top of the roof support, and insulation cotton (3) and PVC film (4) are provided between the roof panel and the roof support. The PVC film (4) covers the top of the insulation cotton (3). The roof support includes eaves purlins (2) and several purlins (5). A wire mesh is provided between the insulation cotton (3) and the purlins (5). Several purlins (5) are arranged at equal intervals along the surface of the eaves purlins (2). The purlin (5) closest to the side of the eaves purlins (2) is set as the eaves purlin. An eaves pad (6) is provided between the top of the eaves purlin and the wall panel (10). The eaves pad (6) is installed with the corresponding side of the roof panel by fasteners. An eaves trim (11) is provided between the outer surface of the wall panel (10) and the corresponding side of the eaves pad (6).

2. The profiled steel sheet according to claim 1, characterized in that: The eaves pad (6) is provided with screw holes. The fasteners include pressure strip (9) and positioning screws. When the roof panel is assembled with the eaves pad (6), the pressure strip (9) is placed on the top of the corresponding side of the roof panel and one end of the positioning screw passes through the pressure strip (9), the corresponding side of the roof panel and is then threaded to the screw hole in the eaves pad (6).

3. The profiled steel sheet according to claim 1, characterized in that: The eaves pad (6) is fitted with several eaves end caps (7), and the two eaves end caps (7) in adjacent positions form a positioning space for the roof panel.

4. The profiled steel sheet according to claim 1, characterized in that: The top of the eaves purlin (2) is provided with a gable starting Z-shaped steel (8), and the gable starting Z-shaped steel (8) can be fitted and positioned with the mother rib inside the first roof panel when the first roof panel is laid.

5. A profiled steel sheet according to claim 1, characterized in that: The combination of the thermal insulation cotton (3) and the PVC film (4) has a positioning step hole, and a positioning component extending to the top of the corresponding purlin (5) is installed in the positioning step hole. The gap between the positioning component and the positioning step hole is filled with a waterproof adhesive layer (13) for sealing.

6. A profiled steel sheet according to claim 5, characterized in that: The positioning assembly includes a positioning sleeve (12), a screw rod (14), a sealing gasket (15), and an internal threaded sleeve (17). One end of the top of the screw rod (14) is fitted inside the middle of the positioning sleeve (12), and the internal threaded sleeve (17) is threaded to the surface of one end of the top of the screw rod (14) and limits and locks the fitting of the positioning sleeve (12) and the screw rod (14). One end of the bottom of the screw rod (14) is threaded to the top inside of the purlin (5). The sealing gasket (15) is fixed to the top of the positioning sleeve (12) and is tightly attached to the surface of the PVC film (4).

7. A profiled steel sheet according to claim 6, characterized in that: The waterproof adhesive layer (13) is specifically filled in the fitting gap between the positioning sleeve (12) and the positioning step hole, and the fitting gap between the screw rod (14) and the positioning step hole. The bottom surface of the sealing gasket ring (15) and the top surface of the PVC film (4) are integrally connected by hot air welding.

8. A profiled steel sheet according to claim 6, characterized in that: The top of the screw rod (14) has an internal hexagonal groove, and the inside of both sides of the positioning sleeve (12) is fitted with a buffer assembly. There is a clearance space between the buffer assembly and one end of the top of the screw rod (14).

9. A profiled steel sheet according to claim 8, characterized in that: The buffer assembly consists of a composite buffer structure (16), and the composite buffer structure (16) includes a curved support plate (161). The bottom of the curved support plate (161) is fitted inside the positioning sleeve (12) by a pin, and a torsion spring (162) is fitted outside the end of the pin. The two ends of the torsion spring (162) are respectively fixed on the surface of the bottom of the curved support plate (161) and the inner wall of the positioning sleeve (12). A damping ring (163) is fitted inside the top of the curved support plate (161) by a pin, and the damping ring (163) can roll and rub against the roof panel covering the top of the PVC film (4).

10. The installation and construction process of profiled steel sheets as described in claim 1, characterized in that... Includes the following steps: The first step is to prepare materials and arrange processing equipment. The preparation of materials and the arrangement of processing equipment in the early stage include positioning steel coils, roof pressing machines and lifting equipment, and hoisting insulation cotton (3) and PVC film (4) onto the roof. The roof panels are specifically made by high-altitude forming, that is, the roof panels are made on the roof to be laid by using roof pressing machines and lifting equipment. The second step is to lay the reinforcing material; The specific reinforcement material includes laying a wire mesh on top of several purlins (5) before laying the insulation cotton (3), and the surface of the wire mesh is coated with a corrosion-resistant coating. The third step is to lay insulation and waterproofing materials; The order of laying insulation and waterproofing materials is as follows: first, lay insulation cotton (3) on the wire mesh, and follow the principle of flat, natural and uniform hanging when laying. PVC film (4) is laid between the insulation cotton (3) and the roof panel formed by the profiled steel plate (1). The fourth step is to lay the roof panels; The specific process of laying roof panels includes roof panel installation preparation, fixing fasteners, fixing roof panels, locking roof panels, installing ridge caps and cleaning up debris. Roof panel installation tools include calipers, manual locking machine for eaves, locking machine and lateral overlap plates. The lateral overlap plates can ensure the firmness of the lateral overlap of the roof panels. The lateral overlap plates are fastened to the corresponding purlins (5) in the vertical joints generated during subsequent laying by self-drilling screws.

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