Metal sheet rigid waterproof roof

Abstract

The utility model discloses a kind of metal plate rigid waterproof roof, including roof base, from below to above sequentially including support structure layer, heat insulation layer, leveling layer, waterproof layer and decorative layer;The support structure layer includes horizontal steel frame and steel concrete porous plate, the horizontal steel frame is laid on the steel concrete porous plate, vertical steel frame is fixedly arranged on the side of the steel concrete porous plate;The waterproof layer includes metal frame and concrete layer covering the metal frame, the metal frame is fixedly arranged above the horizontal steel frame, the metal frame is continuous "non" character-shaped plate structure;The upper surface of the concrete layer is provided with inwardly recessed drain channel;The decorative layer is functional coating covered on the waterproof layer.The utility model strengthens the crack resistance of concrete by "non" character-shaped metal frame, and is anchored with lower structure, forms double waterproof and overall stable roof system, solves the problem of poor waterproof durability and insufficient structure synergy in prior art.

Description

Technical Field

[0001] This utility model relates to the field of building roofing engineering technology, specifically a rigid waterproof roofing system made of metal panels. Background Technology

[0002] Metal roofing systems are widely used due to their lightweight, aesthetic appeal, and ease of construction. Their waterproofing performance is crucial in determining the system's lifespan. Currently, common waterproofing methods are mainly divided into two categories: flexible waterproofing, such as using PVC or TPO waterproof membranes, but these have drawbacks such as poor weather resistance, susceptibility to aging and cracking, and poor fire resistance; and rigid waterproofing, such as cast-in-place concrete layers, but these are heavy, have poor adaptability to substrate deformation, and are prone to cracking due to structural deformation or temperature stress, leading to waterproofing failure.

[0003] While existing technologies have proposed some composite waterproof structures, they often suffer from problems such as single-function layers, poor synergy, and insufficient overall stability. How to design a metal roofing system that organically integrates and coordinates the layers to achieve both efficient rigid waterproofing and excellent structural stability and thermal insulation performance has become a pressing technical problem to be solved in this field. Utility Model Content

[0004] The purpose of this utility model is to provide a rigid waterproof roof made of metal panels that is structurally stable, waterproof, heat-insulating, and has good synergy among its functional layers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rigid waterproof metal roof, comprising a roof base layer, which from bottom to top includes a supporting structure layer, a heat insulation layer, a leveling layer, a waterproof layer, and a decorative layer; The supporting structure layer includes a reinforced concrete perforated plate and a horizontal steel frame laid on the reinforced concrete perforated plate. A vertical steel frame is fixedly installed on the side of the reinforced concrete perforated plate. The waterproof layer includes a metal frame and a concrete layer covering the metal frame. The metal frame is fixedly installed above the horizontal steel frame and is a continuous "non"-shaped plate structure. The upper surface of the concrete layer is provided with inwardly recessed drainage channels. The decorative layer is a functional coating that covers the waterproof layer.

[0006] Furthermore, the decorative layer is one of a silicon-modified polyester coating, a fluorocarbon coating, or a polyurethane coating.

[0007] Furthermore, the metal frame of the "non" shaped structure is made of one of the following materials: galvanized steel plate, stainless steel plate, or aluminized zinc steel plate.

[0008] Furthermore, the concrete layer is a mixed concrete raw material in which an expansion agent, a water-reducing agent, and a waterproofing agent are added.

[0009] Furthermore, the upper surface of the leveling layer is configured to be horizontal and parallel to the ground.

[0010] Furthermore, the insulation layer is a rigid polyurethane foam board with an internally embedded reinforcing mesh, which is a steel wire mesh or a fiberglass mesh.

[0011] Furthermore, the horizontal and vertical steel frames are made of one of the following materials: titanium-zinc-plastic-aluminum composite panels, aluminum alloys, or galvanized steel profiles.

[0012] In this invention, the supporting structure layer forms a stable load-bearing base; the insulation layer, laid on the supporting structure layer, is a rigid polyurethane foam board with an internal reinforcing mesh, effectively isolating thermal bridges and improving thermal insulation performance; the leveling layer, laid on the insulation layer, has its upper surface strictly leveled to provide a uniform and flat construction base for the subsequent waterproofing layer; the waterproofing layer is the core functional layer, composed of a unique "non-T" shaped plate-like metal frame and fine stone concrete mixed with admixtures, forming a rigid reinforced waterproof body, with the metal frame also serving as the connection interface with the underlying structure; the decorative layer covers the outermost layer, serving both aesthetic and protective functions.

[0013] The "non-standard" shaped metal frame is fixedly connected to the horizontal steel frame of the lower supporting structure layer via bolts and other connectors, achieving a rigid connection between the waterproof layer and the main structure, greatly improving the overall integrity. The upper surface of the concrete layer has prefabricated inward-recessed drainage channels that can quickly divert rainwater, forming a second line of waterproofing.

[0014] Compared with the prior art, this utility model has the following beneficial effects: 1. Reliable waterproof performance: It adopts a rigid waterproof layer of reinforced concrete with a "non" shaped metal frame, combined with surface drainage channel structure to form a double waterproof system that combines rigidity and flexibility, with strong crack resistance and efficient drainage. 2. Overall structural stability: The supporting structure layer consists of a sturdy base formed by horizontal steel frames, reinforced concrete perforated slabs, and vertical steel frames. The metal frame in the waterproof layer is effectively anchored to the lower steel frame through connectors, making each layer of the roof a unified and coordinated system that has strong resistance to deformation and wind uplift. 3. Highly efficient thermal insulation: The insulation layer uses polyurethane rigid foam board with built-in reinforcing mesh, which not only ensures excellent thermal insulation performance, but also enhances the compressive strength and integrity of the layer, preventing deformation and cracking of the insulation layer. 4. Functional Integration and Collaboration: The design objectives of each level are clear and mutually supportive. The leveling layer ensures the construction quality of the waterproof layer; the enhanced insulation layer guarantees long-term thermal insulation effect and stability; the "non-standard" shaped metal frame integrates reinforcement, force transmission, and connection functions. The system has a high degree of integration and superior overall performance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of a rigid waterproof metal roof according to the present invention; Figure 2 This is a top view schematic diagram of a rigid waterproof roofing waterproof layer made of metal plate according to the present invention; Figure 3 This is a schematic diagram of the structure at point A of a rigid waterproof metal plate roof according to this utility model.

[0016] In the diagram: 1. Roof base layer; 2. Decorative layer; 3. Waterproof layer; 4. Leveling layer; 5. Insulation layer; 6. Horizontal steel frame; 7. Reinforced concrete perforated slab; 8. Vertical steel frame; 9. Drainage channel; 10. Metal frame; 11. Concrete layer. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1-3 As shown, the specific implementation of this utility model of a rigid waterproof metal roof is as follows: First, a supporting structural layer is constructed on the roof base layer 1 of the main building (usually a reinforced concrete structural slab or steel truss). Precast reinforced concrete perforated slabs 7 are laid on the roof base layer 1 to form the base slab. Vertical steel frames 8 are fixed to the sides of the reinforced concrete perforated slabs 7 by welding or bolting. Subsequently, horizontal steel frames 6, made of titanium-zinc-plastic-aluminum composite panels or galvanized steel profiles, are fixedly laid on the reinforced concrete perforated slabs 7, together forming a stable load-bearing base for the entire roof system.

[0019] Subsequently, an insulation layer 5 is laid on the supporting structure layer. In this example, the insulation layer 5 is preferably a rigid polyurethane foam board with a thickness of 50 mm and a density of not less than 40 kg / m³. During the production process, a steel wire mesh with a pore size of 50 mm * 50 mm and a wire diameter of 2 mm has been pre-embedded inside the foam board to form a reinforcing mesh, effectively improving its compressive strength and crack resistance. The gaps between the boards must be filled tightly with polyurethane foaming agent.

[0020] Leveling layer 4 is constructed on top of insulation layer 5. A 1:3 cement mortar is used for leveling, and a long straightedge is used to smooth it, ensuring that the surface flatness deviation is less than 5mm and the overall slope meets design requirements for drainage. Leveling layer 4 provides a solid and flat working surface for the subsequent waterproofing layer.

[0021] Next is the construction of the core waterproof layer 3. First, the prefabricated "non-standard" shaped metal frame 10 (in this example, 1.2mm thick galvanized steel plate) is laid on the leveling layer 4 at the designed spacing and initially fixed to the lower horizontal steel frame 6 using connectors (such as bolts). Then, C25 fine aggregate concrete is poured to form the concrete layer 11. When mixing the concrete, 8% UEA expansion agent, 1% water-reducing agent, and 3% waterproofing agent by weight of cement are added to compensate for concrete shrinkage, reduce water consumption, increase density, and enhance its water repellency. The concrete needs to be vibrated to ensure it completely covers the metal frame 10. Before the concrete initially sets, a special semi-circular stamping mold is used to press continuous grooves 15mm deep and 20mm wide onto its surface to form drainage channels 9.

[0022] Finally, after the concrete layer 11 has fully cured (for no less than 14 days) to reach its design strength, its surface is cleaned, and then a silicone-modified polyester coating is applied by roller or spray to form the decorative layer 2. This coating is not only rich in color and beautiful, but also has excellent weather resistance, corrosion resistance and durability, and can effectively protect the underlying waterproof structure for a long time.

[0023] The working principle of this invention is as follows: After rainwater falls onto the roof, most of it flows away quickly due to the water-repellent properties of the decorative layer 2. A small amount of water is collected by the drainage channel 9 and quickly directed to the drain outlet, preventing water seepage. The concrete layer 11 serves as the main waterproof barrier, and its "non-U" shaped metal frame 10 effectively inhibits concrete cracking and transfers the upper load to the lower, robust supporting structure layer through connectors. The insulation layer 5 effectively blocks heat transfer, and its internal reinforcing mesh ensures the structural integrity of the insulation layer during long-term use. Through this design, the various functional layers work together to achieve comprehensive performance in terms of roof waterproofing, structural stability, and thermal insulation.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rigid waterproof metal roof, comprising a roof base layer (1), characterized in that... From bottom to top, it includes a supporting structure layer, a heat insulation layer (5), a leveling layer (4), a waterproof layer (3), and a decorative layer (2); The supporting structure layer includes a reinforced concrete perforated plate (7) and a horizontal steel frame (6) laid on the reinforced concrete perforated plate (7). A vertical steel frame (8) is fixedly installed on the side of the reinforced concrete perforated plate (7). The waterproof layer includes a metal frame (10) and a concrete layer (11) covering the metal frame (10). The metal frame (10) is fixedly installed above the horizontal steel frame (6). The metal frame (10) is a continuous "non" shaped plate structure. The upper surface of the concrete layer (11) is provided with an inwardly recessed drainage channel (9). The decorative layer (2) is a functional coating that covers the waterproof layer.

2. The rigid waterproof roofing system for metal panels according to claim 1, characterized in that... The decorative layer (2) is one of a silicon-modified polyester coating, a fluorocarbon coating, or a polyurethane coating.

3. A rigid waterproof roof made of metal sheet according to claim 1, characterized in that... The metal frame (10) of the "non" shaped plate structure is made of one of the following materials: galvanized steel plate, stainless steel plate or aluminum-zinc coated steel plate.

4. A rigid waterproof roof made of metal sheet according to claim 1, characterized in that... The upper surface of the leveling layer (4) is set to be horizontal and parallel to the ground.

5. A rigid waterproof roof made of metal sheet according to claim 1, characterized in that... The heat insulation layer (5) is a rigid polyurethane foam board with an internal reinforcing mesh frame, which is a steel wire mesh or a glass fiber mesh.

6. A rigid waterproof roof made of metal sheet according to claim 1, characterized in that... The horizontal steel frame (6) and the vertical steel frame (8) are made of one of the following materials: titanium zinc-plastic aluminum composite plate, aluminum alloy or galvanized steel profile.

Images