Composite board for roof corrosion prevention and thermal insulation
The composite board structure, consisting of a waterproof protective layer, an asphalt perlite board layer, and a heat insulation and moisture-proof layer, solves the problem of insufficient comprehensive performance of roofing materials, achieving a comprehensive effect of waterproofing, corrosion prevention, heat insulation, and fire resistance, thereby improving the stability and safety of the building.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINYANG CHENGXI THERMAL INSULATION MATERIAL CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-07-24
AI Technical Summary
Existing roofing materials cannot simultaneously achieve comprehensive performance in terms of waterproofing, corrosion resistance, thermal insulation, and fire resistance, leading to shortened building lifespan and safety hazards.
The composite board structure includes a waterproof protective layer, an asphalt perlite board layer, and a heat insulation and moisture-proof layer. The tight connection between the polymer waterproof bonding mortar and the steel wire mesh frame layer ensures the stability and integrity of each layer, enhancing the waterproof, corrosion-resistant, and heat-insulating effects.
It achieves waterproofing, corrosion resistance, thermal insulation, and fireproofing functions for the roof, improving the stability and service life of the building, and reducing energy consumption and safety risks.
Smart Images

Figure CN224549498U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building structure technology, specifically to a composite board for roof corrosion protection and heat insulation. Background Technology
[0002] The main functions of a building include: living, working, entertainment, socializing, and storage. The roof, as the top of the building, needs to fulfill the following functions: (1) Waterproofing: The roof is in direct contact with rainwater and snowmelt, so effective drainage must be achieved through waterproof materials and slope design to prevent leakage; (2) Thermal insulation: Materials must be used to isolate external temperature changes (such as summer insulation and winter insulation) to maintain a stable indoor environment; (3) Corrosion prevention: Roof materials are exposed to sunlight, rainwater, wind, sand, and other environmental factors for a long time, making them susceptible to corrosion, aging, or pollution. Roof corrosion prevention can increase the service life of a building; (4) Fire prevention: As the highest part of a building, the roof is vulnerable to fire, which can quickly spread throughout the entire building, posing a serious threat to surrounding buildings and people. Therefore, the roof of a building needs to have waterproofing, corrosion prevention, thermal insulation, and fire prevention functions.
[0003] This utility model provides a composite panel for roof corrosion protection and heat insulation. The composite panel is installed on the roof foundation structure to provide the uppermost layer of protection for the building, offering waterproofing, corrosion protection, heat insulation, and fire resistance. Furthermore, the tightly connected structure enhances the overall stability of the composite panel and further strengthens its waterproofing, corrosion protection, heat insulation, and fire resistance properties. Utility Model Content
[0004] This utility model provides a composite board for roof corrosion protection and heat insulation to achieve the purpose of waterproofing, corrosion protection, heat insulation and fire prevention for buildings.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a composite board for roof corrosion protection and heat insulation is provided, the innovation of which is: it includes a waterproof protective layer, an asphalt perlite board layer and a heat insulation and moisture-proof layer connected in sequence, wherein the heat insulation and moisture-proof layer is attached to the upper surface of the roof foundation structure.
[0006] The heat insulation and moisture-proof layer is bonded to the lower surface of the asphalt perlite board layer by polymer waterproof adhesive mortar; a steel wire mesh layer is also embedded in the waterproof protective layer, and the asphalt perlite board layer is embedded with a web wire, which extends into the waterproof protective layer and protrudes outward, with the protruding part embedded in the waterproof protective layer. The steel wire mesh layer is formed by multiple steel wire mesh sheets welded to the protruding ends of the web wire.
[0007] Furthermore, the waterproof protective layer is a fine aggregate concrete layer with a thickness of 20-50mm.
[0008] Furthermore, the abdominal wire is W-shaped, the thickness of the abdominal wire protruding and embedded in the waterproof protective layer is 10mm, the wire diameter of the abdominal wire is 2.2mm, and the wire mesh size is 50X50X2mm.
[0009] Furthermore, non-metallic pads are uniformly provided between the asphalt perlite slab layer and the wire mesh frame layer.
[0010] Furthermore, the thickness of the asphalt perlite slab layer is 50-200 mm, and the bulk density is 250 kg / m³. 3 .
[0011] Furthermore, the polymer waterproof bonding mortar comprises polymer materials, cement, sand, and a waterproof coupling agent, with a bonding strength of M20.
[0012] Furthermore, the polymer material is one or more of polypropylene fiber, polyvinyl alcohol, redispersible polymer powder, and cellulose; the waterproof coupling agent is an active silica powder coupling agent.
[0013] Furthermore, the heat insulation and moisture-proof layer is a graphite polystyrene board, with a thickness of 50-200 mm and a density of 20 kg / m³. 3 .
[0014] Furthermore, it also includes multiple uniformly arranged non-metallic tie rods, which tie the wire mesh layer, the asphalt perlite board layer, and the heat insulation and moisture-proof layer together.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] (1) The composite board for roof corrosion protection and heat insulation of this utility model has a waterproof protective layer, an asphalt perlite board layer and a heat insulation and moisture-proof layer, which can play a role in waterproofing, corrosion protection and heat insulation of buildings. The asphalt perlite board layer of this utility model also has protruding webs embedded in the waterproof protective layer.
[0017] (2) The composite board for roof corrosion protection and heat insulation of this utility model tightly connects the asphalt perlite board layer and the waterproof protective layer through the web wire and steel wire mesh layer, and at the same time tightly bonds the heat insulation and moisture-proof layer and the asphalt perlite board layer through polymer waterproof bonding mortar, so as to ensure the integrity and stability of the composite board and further improve the waterproof, corrosion protection and heat insulation effect of each layer. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall structure of a composite panel for roof corrosion protection and heat insulation according to the present invention.
[0020] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the image.
[0021] Figure 3 This is a cross-sectional structural diagram of a composite panel for roof corrosion protection and heat insulation according to the present invention.
[0022] Figure 4 This is a schematic diagram of the connection between the protruding ends of the asphalt perlite board layer and the steel wire mesh layer embedded in the waterproof protective layer in a composite board for roof corrosion protection and heat insulation according to this utility model.
[0023] The components include: 1. Waterproof protective layer; 2. Asphalt perlite board layer; 3. Heat insulation and moisture-proof layer; 4. Steel wire mesh frame layer; 5. Weft wire; 6. Steel wire mesh sheet; 7. Non-metallic pads; 8. Polymer waterproof bonding mortar; 9. Non-metallic tie rods. Detailed Implementation
[0024] 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.
[0025] The specific embodiments of this utility model are as follows: Figure 1-4 The following examples illustrate this:
[0026] Example 1
[0027] This embodiment provides a composite board for roof corrosion protection and heat insulation, including a waterproof protective layer 1, an asphalt perlite board layer 2 and a heat insulation and moisture-proof layer 3 connected in sequence, with the heat insulation and moisture-proof layer 3 attached to the upper surface of the roof foundation structure.
[0028] Asphalt perlite board has the following functions: (1) Thermal insulation: Asphalt perlite board layer 2 has a low thermal conductivity, which can effectively reduce the energy loss of the building and improve the energy efficiency of the building. Especially in winter, it can effectively block the intrusion of cold outdoor air and maintain the stability of indoor temperature. (2) Fireproof: Asphalt perlite board layer 2 has good fireproof performance. Its fire resistance is as high as 1100℃ or more, which fully meets the stringent requirements of roof fireproof insulation board. It will not burn at high temperature and will not release toxic gases, providing a safe fire protection for the building. (3) Lightweight and high strength: Asphalt perlite board has low density and light structure, but at the same time exhibits good compressive strength, making it more convenient in construction and transportation, and reducing the overall load of the building. (4) Sound absorption and noise reduction: Asphalt perlite board layer 2 has a porous structure, which can effectively absorb sound, and the sound insulation coefficient is as high as 45dB or more. (5) Waterproof and moisture-proof: Asphalt itself has good waterproof performance and can effectively prevent the penetration of moisture. After being treated with asphalt, expanded perlite forms a dense waterproof layer on its surface, further enhancing the waterproof and moisture-proof capabilities of the board. (6) The asphalt component in the asphalt perlite board has chemical stability and is not easily reacted with most chemical substances, thus effectively resisting chemical corrosion. Perlite, as an inorganic non-metallic material, also has good chemical stability and is not easily corroded. Asphalt is a hydrophobic material that absorbs little water after cooling and solidification, and the water evaporates easily after absorption. This characteristic allows the asphalt perlite board to effectively prevent water penetration and accumulation when in contact with water.
[0029] The combination of asphalt perlite board with waterproof protective layer 1 and heat insulation and moisture-proof layer 3 gives the composite board the functions of waterproofing, corrosion resistance, heat insulation and other properties.
[0030] In this embodiment, the heat insulation and moisture-proof layer 3 is bonded to the lower surface of the asphalt perlite board layer 2 by polymer waterproof adhesive mortar 8; a steel wire mesh layer 4 is also embedded in the waterproof protective layer 1, and a web wire 5 is embedded in the asphalt perlite board layer 2. The web wire 5 extends into the waterproof protective layer 1 and protrudes outward, and the protruding part is embedded in the waterproof protective layer 1. The steel wire mesh layer 4 is formed by multiple steel wire mesh sheets 6 welded to the protruding end of the web wire 5.
[0031] In this embodiment, the asphalt perlite board layer 2 is also provided with protruding web 5 embedded in the waterproof protective layer 1. The asphalt perlite board layer 2 and the waterproof protective layer 1 are tightly connected by the web 5 and the steel wire mesh layer 4. At the same time, the heat insulation and moisture-proof layer 3 and the asphalt perlite board layer 2 are tightly bonded by the polymer waterproof adhesive mortar 8, so as to ensure the integrity and stability of the composite board and further improve the waterproof, anti-corrosion and heat insulation effects of each layer.
[0032] Example 2
[0033] Based on the above embodiments, the waterproof protective layer 1 in this embodiment is a fine stone concrete layer with a thickness of 20-50mm.
[0034] Fine aggregate concrete layers, formed through the mixing of fine aggregate concrete, possess high compressive strength, enabling them to withstand significant loads and extending the building's lifespan. They exhibit good impermeability and frost resistance, making them suitable for use in humid or cold climates, effectively preventing moisture penetration and reducing deterioration and damage caused by water. Furthermore, fine aggregate concrete has a low shrinkage rate, minimizing cracking caused by shrinkage and ensuring the structural integrity and stability. Therefore, using a fine aggregate concrete layer as the outermost (topmost) layer of the composite panel as a waterproof protective layer 1 provides effective waterproofing protection for the building.
[0035] Example 3
[0036] Based on the above embodiments, the abdominal wire 5 in this embodiment is W-shaped, the abdominal wire 5 protrudes and is embedded in the waterproof protective layer 1 with a thickness of 10mm, the wire diameter of the abdominal wire 5 is 2.2mm, and the wire mesh 6 is 50X50X2mm.
[0037] In this embodiment, the wire mesh 6 is 50x50x2.0mm, meaning the mesh size is 50mm x 50mm and the wire diameter is 2.0mm. Multiple wire meshes 6 are welded to the protruding ends of the web wires to form a wire mesh frame layer 4, which strengthens the connection and tightness between the waterproof protective layer 1 and the asphalt perlite board layer 2.
[0038] Example 4
[0039] Based on the above embodiments, in this embodiment, non-metallic spacers 7 are also uniformly provided between the asphalt perlite slab layer 2 and the wire mesh layer. The non-metallic spacers 7 are spacers formed by mixing cement perlite concrete, such as... Figure 1 and 4 As shown, this can further enhance the connection strength between the asphalt perlite slab layer 2 and the waterproof protective layer 1.
[0040] Example 5
[0041] Based on the above embodiments, the thickness of the asphalt perlite slab layer 2 in this embodiment is 50-200 mm, and the bulk density is 250 kg / m³. 3 .
[0042] Example 6
[0043] Based on the above embodiments, the polymer waterproof bonding mortar 8 of this embodiment includes polymer materials, cement, sand, and a waterproof coupling agent, with a bonding strength of M20. The polymer waterproof bonding mortar 8 is an inorganic composite cementitious material, formed by mixing polymer materials, cement, sand, and a waterproof coupling agent. It can firmly bond the heat insulation and moisture-proof layer 3 to the lower surface of the asphalt perlite board layer 2, ensuring the structural integrity and stability of the composite board, and further improving the waterproof, corrosion-resistant, and thermal insulation effects of the composite board.
[0044] Example 7
[0045] Based on the above embodiments, the polymer material in this embodiment is one or more of polypropylene fiber, polyvinyl alcohol, redispersible polymer powder, and cellulose; the waterproof coupling agent is an active silica powder coupling agent.
[0046] Example 8
[0047] Based on the above embodiments, the heat insulation and moisture-proof layer 3 in this embodiment is a graphite polystyrene board, the thickness of the heat insulation and moisture-proof layer 3 is 50-200mm, and the density is 20kg / m³. 3 .
[0048] In this embodiment, the graphite polystyrene board has a very low thermal conductivity. Its internal graphite particles can reflect thermal radiation and, combined with infrared absorbers, significantly reduce heat loss, thus providing thermal insulation.
[0049] Example 9
[0050] Based on the above embodiments, this embodiment also includes a plurality of uniformly arranged non-metallic tie rods 9, which tie the steel wire mesh layer 4, the asphalt perlite board layer 2 and the heat insulation and moisture-proof layer 3 into one unit.
[0051] In this embodiment, the non-metallic tie rod 9 has a wire diameter of 8mm and a tensile strength >1.5kN.
[0052] It should be noted that, in this document, the term "comprising" or any other variation thereof is 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 a process, method, article, or apparatus. Without further limitation, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0053] It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary in all respects. The above-described embodiments are merely illustrative of the technical solutions of this utility model and not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A composite panel for roof corrosion protection and heat insulation, characterized in that: It includes a waterproof protective layer, an asphalt perlite board layer and a heat insulation and moisture-proof layer connected in sequence, wherein the heat insulation and moisture-proof layer is attached to the upper surface of the roof foundation structure; The heat insulation and moisture-proof layer is bonded to the lower surface of the asphalt perlite board layer by polymer waterproof adhesive mortar; a steel wire mesh layer is also embedded in the waterproof protective layer, and the asphalt perlite board layer is embedded with a web wire, which extends into the waterproof protective layer and protrudes outward, with the protruding part embedded in the waterproof protective layer. The steel wire mesh layer is formed by multiple steel wire mesh sheets welded to the protruding ends of the web wire.
2. The composite panel for roof corrosion protection and heat insulation according to claim 1, characterized in that: The waterproof protective layer is a fine aggregate concrete layer with a thickness of 20-50mm.
3. The composite panel for roof corrosion protection and heat insulation according to claim 2, characterized in that: The abdominal wire is W-shaped, and the thickness of the abdominal wire protruding and embedded in the waterproof protective layer is 10mm. The diameter of the abdominal wire is 2.2mm, and the wire mesh size is 50X50X2mm.
4. The composite panel for roof corrosion protection and heat insulation according to claim 2, characterized in that: Non-metallic pads are also uniformly provided between the asphalt perlite slab layer and the wire mesh layer.
5. The composite panel for roof corrosion protection and heat insulation according to claim 1, characterized in that: The thickness of the asphalt perlite slab layer is 50-200 mm, and the bulk density is 250.
6. The composite panel for roof corrosion protection and heat insulation according to claim 1, characterized in that: The heat insulation and moisture-proof layer is a graphite polystyrene board with a thickness of 50-200 mm and a density of 20 kg / m³. 3 .
7. The composite panel for roof corrosion protection and heat insulation according to claim 1, characterized in that: It also includes multiple uniformly arranged non-metallic tie rods, which tie the wire mesh layer, the asphalt perlite board layer and the heat insulation and moisture-proof layer together.