A corrosion-proof continuous welded roof structure

Abstract

The application is a kind of continuous welding roof structure for preventing corrosion, which comprises a structure (1), a thermal insulation layer (2), a waterproof layer (3), a metal roof panel (4), a vapor barrier layer (5) and a fixing support (6). The thermal insulation layer (2) is above the structure (1), the vapor barrier layer (5) is below the thermal insulation layer (2), the thermal insulation layer (2) has the waterproof layer (3), the base of the fixing support (6) is fixed on the structure (1) by screws, the uppermost layer is covered by the stainless steel roof panel (4) which is pre-treated for corrosion prevention, and the panel rib of the stainless steel roof panel (4) and the fixing support (6) are welded and fixed by resistance welding. The application can avoid on-site spraying corrosion prevention treatment and solve the conflict between the corrosion prevention and welding performance of the welded stainless steel metal roof system under the condition of ensuring the corrosion prevention requirement of the welded stainless steel roof system.

Description

Technical Field

[0001] This invention relates to the field of metal roofing manufacturing technology, specifically a corrosion-resistant continuous welded roofing structure. Background Technology

[0002] Metal roofing systems are a widely used enclosure structure in modern steel structure buildings. Stainless steel, as a weldable material, is used in the production of profiled metal roof panels. Applying welding technology to the connections of metal roofing systems fundamentally improves their waterproofing and structural integrity. However, in highly corrosive environments such as coastal areas, projects often require the highest possible corrosion resistance while maintaining high waterproofing performance. Currently, common anti-corrosion treatments for metal roofing systems involve pre-painting or on-site spraying of the roof panels. However, these methods are not suitable for welded stainless steel metal roofing systems.

[0003] When using pre-painting, a paint layer needs to be evenly covered on the entire surface of the sheet material. This results in the areas that will be welded later being non-conductive. However, stainless steel roofing technology uses resistance welding, which requires the sheet material in the welding area to be conductive. Therefore, pre-painted roof panels are not suitable for welded stainless steel roofing systems.

[0004] When using on-site spraying, large-scale surface painting is typically performed after the stainless steel roof has been welded. However, on-site spraying has a significant environmental impact, easily causing pollution; it also results in greater waste and is not conducive to green construction. Furthermore, the anti-corrosion effect and appearance quality of on-site spraying are inferior to pre-baked paint treatment. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned defects and propose a corrosion-resistant continuous welded roof structure that can both meet the corrosion protection requirements of welded stainless steel roofing systems, avoid on-site spray anti-corrosion treatment, and solve the conflict between corrosion prevention and welding performance of welded stainless steel metal roofing systems.

[0006] To achieve the above objectives, the present invention is implemented as follows:

[0007] A corrosion-resistant continuous welded roof structure includes a structure (1), an insulation layer (2), a waterproof layer (3), a metal roof panel (4), a vapor barrier (5), and a fixing bracket (6).

[0008] The insulation layer (2) is above the structure (1); the vapor barrier layer (5) is below the insulation layer (2) to prevent water vapor from entering the insulation layer (2) and affecting the insulation effect; the insulation layer (2) has a waterproof layer (3) on it, which completely covers the insulation layer (2). The waterproof layer (3) is a TPO waterproof membrane, or PVC or waterproof breathable membrane; the base of the fixed bracket (6) is fixed to the structure (1) by screws; the top layer is covered with a stainless steel roof panel (4) that has been pretreated for corrosion protection. The stainless steel roof panel (4) and the fixed bracket (6) are welded and fixed by resistance welding.

[0009] in:

[0010] The stainless steel roof panel (4) is pre-treated for corrosion protection. The corrosion protection process uses a polymer anti-corrosion film and does not require baking paint. However, a space without film is reserved in the rib area where welding is required for subsequent welding.

[0011] After the insulation layer (2), waterproof layer (3), vapor barrier layer (5), fixing bracket (6) and metal roof panel (4) are assembled, stainless steel resistance welding is used to weld the ribs and bracket (6); after welding, the ribs are rolled and locked using a locking machine; for systems where the ribs are not rolled and locked, other locking methods can be used.

[0012] After the roof panels are edge-locked, the areas that were originally reserved but not covered with film are covered on-site. The polymer anti-corrosion film used for on-site covering is a self-adhesive anti-corrosion film, which is an adhesive layer laminated on the original film. It is directly bonded to the areas that are not covered with film on-site and overlapped with the areas covered with film. Alternatively, hot air welding is used for on-site covering, where the anti-corrosion film is welded to the roof panels by heating with hot air. After the on-site covering of the ribs, the anti-corrosion treatment of the entire roof system is fully covered, forming a complete anti-corrosion layer.

[0013] While welded stainless steel roofing systems offer significantly improved waterproofing and wind resistance compared to traditional metal roofing systems, they still require corrosion protection in highly corrosive environments such as coastal areas. Currently used methods, such as applying anti-corrosion coatings or covering with polymer anti-corrosion films, can negatively impact the weldability of the stainless steel roofing system, thus affecting its wind resistance. Consequently, even with the addition of welding and corrosion protection processes, the overall performance of the roofing system cannot be effectively improved.

[0014] While retaining the superior wind resistance of welded stainless steel roofing systems, this invention employs anti-corrosion treatment for roof panels to enhance their corrosion resistance. On-site, after welding, only one step is required: applying a polymer anti-corrosion film to the joints. This process is simple, efficient, and improves the overall corrosion resistance of the roofing system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the roofing system structure shown in this invention.

[0016] Figure 2 This is a schematic diagram of the roofing system described in this invention. Figure 1 .

[0017] Figure 3 This is a schematic diagram of the roofing system described in this invention. Figure 2 .

[0018] Figure 4 This is a schematic diagram of the roofing system described in this invention. Figure 3 . Detailed Implementation

[0019] The present invention will be further illustrated below through specific embodiments.

[0020] like Figures 1-4 As shown, a corrosion-resistant continuous welded roof structure includes a structure (1), an insulation layer (2), a waterproof layer (3), a metal roof panel (4), a vapor barrier layer (5), and a fixing bracket (6).

[0021] The insulation layer (2) is above the structure (1); the vapor barrier layer (5) is below the insulation layer (2) to prevent water vapor from entering the insulation layer (2) and affecting the insulation effect; the insulation layer (2) has a waterproof layer (3) on it, which completely covers the insulation layer (2). The waterproof layer (3) is a TPO waterproof membrane, or PVC or waterproof breathable membrane; the base of the fixed bracket (6) is fixed to the structure (1) by screws; the top layer is covered with a stainless steel roof panel (4) that has been pretreated for corrosion protection. The stainless steel roof panel (4) and the fixed bracket (6) are welded and fixed by resistance welding.

[0022] in:

[0023] The stainless steel roof panel (4) is pre-treated for corrosion protection. The corrosion protection process uses a polymer anti-corrosion film and does not require baking paint. However, a space without film is reserved in the rib area where welding is required for subsequent welding.

[0024] After the insulation layer (2), waterproof layer (3), vapor barrier layer (5), fixing bracket (6) and metal roof panel (4) are assembled, stainless steel resistance welding is used to weld the ribs and bracket (6); after welding, the ribs are rolled and locked using a locking machine; for systems where the ribs are not rolled and locked, other locking methods can be used.

[0025] After the roof panels are edge-locked, the areas that were originally reserved but not covered with film are covered on-site. The polymer anti-corrosion film used for on-site covering is a self-adhesive anti-corrosion film, which is an adhesive layer laminated on the original film. It is directly bonded to the areas that are not covered with film on-site and overlapped with the areas covered with film. Alternatively, hot air welding is used for on-site covering, where the anti-corrosion film is welded to the roof panels by heating with hot air. After the on-site covering of the ribs, the anti-corrosion treatment of the entire roof system is fully covered, forming a complete anti-corrosion layer.

[0026] While welded stainless steel roofing systems offer significantly improved waterproofing and wind resistance compared to traditional metal roofing systems, they still require corrosion protection in highly corrosive environments such as coastal areas. Currently used methods, such as applying anti-corrosion coatings or covering with polymer anti-corrosion films, can negatively impact the weldability of the stainless steel roofing system, thus affecting its wind resistance. Consequently, even with the addition of welding and corrosion protection processes, the overall performance of the roofing system cannot be effectively improved.

[0027] While retaining the superior wind resistance of welded stainless steel roofing systems, this invention employs anti-corrosion treatment for roof panels to enhance their corrosion resistance. On-site, after welding, only one step is required: applying a polymer anti-corrosion film to the joints. This process is simple, efficient, and improves the overall corrosion resistance of the roofing system.

Claims

1. A corrosion-resistant continuous welded roof structure, characterized in that: It includes the structure (1), insulation layer (2), waterproof layer (3), metal roof panel (4), vapor barrier (5) and fixing bracket (6); The insulation layer (2) is above the structure (1), and the vapor barrier layer (5) is below the insulation layer (2) to prevent water vapor from entering the insulation layer (2) and affecting the insulation effect; the insulation layer (2) has a waterproof layer (3) on it, which completely covers the insulation layer (2). The waterproof layer (3) is a TPO waterproof membrane, PVC, or waterproof and breathable membrane; the base of the fixed bracket (6) is fixed to the structure (1) with screws, and the top layer is covered with a stainless steel roof panel (4) that has been pre-treated for corrosion protection. The stainless steel roof panel (4) and the fixed bracket (6) are welded and fixed by resistance welding. in: The stainless steel roof panel (4) is pre-treated for corrosion protection. The corrosion protection process uses a polymer anti-corrosion film and does not require baking paint. However, a space without film is reserved in the rib area where welding is required for subsequent welding. After the insulation layer (2), waterproof layer (3), vapor barrier layer (5), fixing bracket (6) and metal roof panel (4) are assembled, stainless steel resistance welding is used to weld the ribs and bracket (6); after welding, the ribs are rolled and locked using a locking machine; for systems where the ribs are not rolled and locked, other locking methods are used. After the roof panels are edge-locked, the areas that were originally reserved but not covered with film are covered on-site. The polymer anti-corrosion film used for on-site covering is a self-adhesive anti-corrosion film, which is an adhesive layer laminated on the original film. It is directly bonded to the areas that are not covered with film on-site and overlapped with the areas covered with film. Alternatively, hot air welding is used for on-site covering, where the anti-corrosion film is welded to the roof panels by heating with hot air. After the on-site covering of the ribs, the anti-corrosion treatment of the entire roof system is fully covered, forming a complete anti-corrosion layer.

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