Outer wall internal thermal insulation system of aluminum honeycomb outer wall system

Abstract

The invention discloses an external wall internal thermal insulation system of an aluminum honeycomb external wall system. The external wall internal thermal insulation system comprises a base layer adaptation unit, a structure supporting thermal insulation unit, a protection enhancing unit and a decoration unit which are sequentially arranged from inside to outside. The vertical honeycomb hole structure can effectively disperse loads, the problem that a traditional system is prone to falling off is solved in cooperation with the fixing effect of the stainless steel self-plugging rivets, the heat preservation layer is made of the hydrophobic self-adhesion rubber and plastic plate, the water absorption rate is low, the defect that rock wool and other materials absorb water and settle is overcome, and it is guaranteed that the heat preservation performance is stable for a long time; the combination of the reinforcing net and the anti-crack mortar layer improves the anti-crack performance of the system and prevents the surface layer from cracking and falling off, the arrangement of the water stop edge sealing plate and the sealing waterproof structure effectively prevents rainwater permeation and improves the waterproof performance of the system, the materials adopted by the whole system have good fireproof performance, the aluminum honeycomb core layer and the heat preservation layer are not prone to combustion, and the service life of the system is prolonged. The caulking material is fireproof, fire spreading can be effectively prevented, and the problem that traditional extruded sheets and other materials are inflammable is solved.

Description

Technical Field

[0001] This invention relates to the field of building exterior wall insulation technology, and more particularly to an aluminum honeycomb exterior wall system for interior wall insulation. Background Technology

[0002] The aluminum honeycomb exterior wall system is a composite structural system that uses aluminum honeycomb composite panels as exterior wall decoration or enclosure panels, and sets an insulation layer on the inside of the building's exterior walls. This system combines the excellent performance of aluminum honeycomb panels with internal insulation technology, and belongs to the category of prefabricated or semi-prefabricated building envelope systems.

[0003] Chinese Patent Publication No. CN111270821A, published on June 12, 2020, discloses a ceramic thin plate aluminum honeycomb composite panel system and its construction method. The system includes a composite panel, anchoring components, and an adhesive layer. The composite panel includes a ceramic thin plate, an insulation layer, a backing layer, and an aluminum honeycomb panel. The ceramic thin plate includes a long side and a short side. The length of the aluminum honeycomb panel is the same as the length of the long side. The anchoring components are disposed on the composite panel. The adhesive layer includes an outer frame and an inner ring, with at least six inner rings. The edge of the composite panel is provided with a water vapor outlet. The adhesive layer is disposed on the right side of the backing layer.

[0004] Existing traditional exterior wall insulation materials and systems have revealed numerous safety hazards and performance defects in practical applications, seriously affecting building safety and durability. Specific problems are as follows:

[0005] High risk of detachment: Exterior wall adhesive and dry-hanging extruded polystyrene board insulation systems are prone to large-scale detachment under wind pressure, which not only causes property damage, but may also cause falling objects from heights and injure people; external rock wool insulation systems have similar problems. Their internal pores are prone to water absorption, which leads to rock wool settlement and delamination, causing physical and adhesive connectors to fail, and ultimately causing detachment.

[0006] Poor fire resistance: Traditional insulation materials such as extruded polystyrene boards are flammable. Once exposed to external fire, they can easily burn over a large area, causing the fire to get out of control, resulting in casualties and serious damage to the building.

[0007] Insufficient durability: Traditional insulation materials such as rock wool degrade in performance after absorbing water, and extruded polystyrene boards are prone to aging and cracking, resulting in a shortened service life of the insulation system and high maintenance costs in the later stages;

[0008] Inadequate waterproofing performance: The traditional system has unreasonable joint sealing design, which makes it easy for rainwater to seep in, thereby eroding the base wall and insulation layer and affecting the structural safety of the building;

[0009] Therefore, there is an urgent need to propose a corresponding aluminum honeycomb exterior wall system for interior wall insulation to solve the above problems. Summary of the Invention

[0010] The purpose of this invention is to provide an aluminum honeycomb exterior wall system with an interior thermal insulation system in order to solve the above-mentioned problems.

[0011] To achieve the above objectives, the present invention adopts the following technical solution:

[0012] An aluminum honeycomb exterior wall system with an interior wall insulation system includes a base layer adapter unit, a structural support insulation unit, a protective reinforcement unit, and a decorative unit arranged sequentially from the inside to the outside, as well as fixing components for fixing each unit and a sealing and waterproof structure for sealing the joints.

[0013] The structural support and insulation unit includes an aluminum honeycomb core layer and an insulation layer composited on both sides of the aluminum honeycomb core layer, wherein the honeycomb holes of the aluminum honeycomb core layer are arranged vertically.

[0014] The base layer adapter unit includes a special interface agent layer and a polymer waterproof cement mortar leveling layer. The special interface agent layer is attached to the base wall, and the polymer waterproof cement mortar leveling layer is composite on the outside of the special interface agent layer.

[0015] The protective reinforcement unit includes a crack-resistant mortar layer and a reinforcing mesh, wherein the reinforcing mesh is embedded within the crack-resistant mortar layer;

[0016] The decorative unit includes a flexible water-resistant putty layer and a real stone paint decorative layer. The flexible water-resistant putty layer is composited on the outside of the crack-resistant mortar layer, and the real stone paint decorative layer is coated on the outside of the flexible water-resistant putty layer.

[0017] The fixing components include stainless steel blind rivets, window openings, and water-stop sealing plates. The stainless steel blind rivets pass through each unit and are fixed to the base wall. The water-stop sealing plates are set on the sides and bottom of the window openings.

[0018] The sealing and waterproof structure includes a flexible fireproof caulking material and a weather-resistant silicone sealant. The flexible fireproof caulking material is embedded in the base wall through the board joint, and the weather-resistant silicone sealant is sealed on the outside of the flexible fireproof caulking material.

[0019] Preferably, the insulation layer 4 is a self-adhesive rubber and plastic board or foamed polyurethane, and the insulation layer 4 is a hydrophobic material with a water absorption rate of ≤3%.

[0020] Preferably, the reinforcing mesh 6 is a steel wire mesh with a mesh count of 8-12 and a wire diameter of 0.8-1.2 mm, and the overlap width of the reinforcing mesh 6 is not less than 50 mm.

[0021] Preferably, the aluminum honeycomb core layer 3 has a thickness of 20-50mm, a honeycomb hole side length of 10-20mm, and is made of 3003 series aluminum alloy.

[0022] Preferably, the polymer waterproof cement mortar leveling layer has a thickness of 20mm, the crack-resistant mortar layer has a thickness of 3mm, and the flexible water-resistant putty layer is applied in two coats with a total thickness of 5-10mm.

[0023] Preferably, the water-stop edge sealing plate is a 1mm thick galvanized steel plate, and the water-stop edge sealing plate is fixed to the aluminum honeycomb core layer by rivets with a fixing interval of 300-500mm.

[0024] Preferably, the flexible fireproof caulking material is a flexible fireproof caulking material, and the diameter of the flexible fireproof caulking material is 1.2-1.5 times the width of the board joint.

[0025] Preferably, the spacing between the stainless steel blind rivets is 400-600mm, and the depth of the stainless steel blind rivets penetrating into the base wall is not less than 50mm.

[0026] Preferably, the aluminum honeycomb core layer and the insulation layer are bonded together using an epoxy resin adhesive.

[0027] A construction method for an aluminum honeycomb exterior wall system with internal thermal insulation includes the following steps:

[0028] S1. Base treatment and acceptance: Clean the surface of the base wall, remove floating dust, oil stains and loose layers, apply a special interface agent layer, and after the interface agent has cured, apply a 20mm thick polymer waterproof cement mortar leveling layer. The tensile bond strength between the polymer waterproof cement mortar leveling layer and the base wall should not be less than 0.3MPa.

[0029] S2. Installation of structural support insulation unit: The aluminum honeycomb core layer and the insulation layer are pre-composite with epoxy resin adhesive to form a composite board. The composite board is laid from bottom to top, and the gap between adjacent composite boards is controlled at 5-10mm.

[0030] S3. Installation of fixed components: The composite panel is fixed to the base wall using stainless steel blind rivets. 1mm thick galvanized water-stop sealing plates are installed on the sides and bottom of the window openings and fixed with stainless steel blind rivets at a spacing of 300-500mm.

[0031] S4. Construction of protective reinforcement layer: Apply a thick crack-resistant mortar to the outside of the composite board, and simultaneously embed the reinforcing mesh into the crack-resistant mortar layer to ensure that the reinforcing mesh and the crack-resistant mortar are completely bonded.

[0032] S5. Sealing treatment: Fill the gaps between the boards with flexible fireproof caulking material to a depth of not less than 5mm. Apply masking tape along the outside of the gaps and apply weather-resistant silicone sealant to a depth of 50% of the gap width and not less than 5mm. Remove the masking tape within 2 hours after applying the sealant.

[0033] S6. Decorative layer construction: After the crack-resistant mortar layer and weather-resistant silicone sealant have cured, apply two coats of flexible water-resistant putty with a total thickness of 5-10mm. After the putty dries, apply the stone-like paint decorative layer to complete the construction.

[0034] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0035] In this application, the aluminum honeycomb core layer serves as the core structural support component. Its lightweight and high-strength characteristics reduce the system's self-weight while ensuring structural stability. The vertical honeycomb structure effectively distributes the load, and the combination of stainless steel blind rivets completely solves the problem of easy detachment in traditional systems. The insulation layer uses a water-repellent self-adhesive rubber-plastic board with low water absorption, avoiding the defects of rock wool and other materials that absorb water and settle, ensuring long-term stable insulation performance. The bonding between the reinforcing mesh and the crack-resistant mortar layer improves the system's crack resistance and prevents surface cracking and detachment. The installation of water-stop edge sealing plates and sealed waterproof structures effectively prevents rainwater penetration and improves the system's waterproof performance. All materials used in the entire system have good fire resistance. The aluminum honeycomb core layer and insulation layer are not easily combustible, and the caulking material is fire-resistant, which can effectively prevent the spread of fire and solve the problem of flammability of traditional extruded polystyrene boards and other materials. Attached Figure Description

[0036] Figure 1 A schematic diagram of the overall structure provided according to an embodiment of the present invention is shown;

[0037] Figure 2 A schematic diagram of a flexible fireproof caulking material structure provided according to an embodiment of the present invention is shown;

[0038] Figure 3 A schematic diagram of the structure of the weather-resistant silicone sealant provided according to an embodiment of the present invention is shown;

[0039] Figure 4 A schematic diagram of a water-stop sealing plate structure provided according to an embodiment of the present invention is shown.

[0040] Legend:

[0041] 1. Special interface agent layer; 2. Polymer waterproof cement mortar leveling layer; 3. Aluminum honeycomb core layer; 4. Thermal insulation layer; 5. Crack-resistant mortar layer; 6. Reinforcing mesh; 7. Flexible water-resistant putty layer; 8. Stone paint decorative layer; 9. Stainless steel blind rivets; 10. Base wall; 11. Water-stop edge sealing board; 12. Window opening; 13. Flexible fireproof caulking material; 14. Weather-resistant silicone sealant; 15. Board joint. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see Figure 1-4 The present invention provides a technical solution:

[0044] 1. An aluminum honeycomb exterior wall system with an interior wall insulation system, comprising, from the inside out, a base layer adapter unit, a structural support insulation unit, a protective reinforcement unit and a decorative unit, as well as fixing components for fixing each unit and a sealing and waterproof structure for sealing the joints;

[0045] The structural support insulation unit includes an aluminum honeycomb core layer 3 and an insulation layer 4 composited on both sides of the aluminum honeycomb core layer 3. The honeycomb holes of the aluminum honeycomb core layer 3 are arranged vertically.

[0046] The base adapter unit includes a special interface agent layer 1 and a polymer waterproof cement mortar leveling layer 2. The special interface agent layer 1 is attached to the base wall 10, and the polymer waterproof cement mortar leveling layer 2 is composited on the outside of the special interface agent layer 1.

[0047] The protective reinforcement unit includes a crack-resistant mortar layer 5 and a reinforcing mesh 6, with the reinforcing mesh 6 embedded within the crack-resistant mortar layer 5;

[0048] The decorative unit includes a flexible water-resistant putty layer 7 and a real stone paint decorative layer 8. The flexible water-resistant putty layer 7 is composited on the outside of the crack-resistant mortar layer 5, and the real stone paint decorative layer 8 is coated on the outside of the flexible water-resistant putty layer 7.

[0049] The fixing components include stainless steel blind rivets 9, window openings 12 and water-stop sealing plates 11. The stainless steel blind rivets 9 pass through each unit and are fixed to the base wall 10. The water-stop sealing plates 11 are set on the side and bottom of the window openings 12.

[0050] The sealed and waterproof structure includes a flexible fireproof caulking material 13 and a weather-resistant silicone sealant 14. The flexible fireproof caulking material 13 is embedded in the base wall 10 through the board joint, and the weather-resistant silicone sealant 14 is sealed on the outside of the flexible fireproof caulking material 13.

[0051] A construction method for an aluminum honeycomb exterior wall system with internal thermal insulation includes the following steps:

[0052] S1. Base treatment and acceptance: Clean the surface of the base wall 10 of floating dust, oil stains and loose layer, apply special interface agent layer 1, and after the interface agent has cured, apply a 20mm thick polymer waterproof cement mortar leveling layer 2. The tensile bond strength between the polymer waterproof cement mortar leveling layer 2 and the base wall 10 should not be less than 0.3MPa.

[0053] S2. Installation of structural support insulation unit: The aluminum honeycomb core layer 3 and the insulation layer 4 are pre-composite to form a composite board using epoxy resin adhesive. The composite board is laid from bottom to top, and the gap between adjacent composite boards is controlled at 5-10mm.

[0054] S3. Installation of fixed components: The composite panel is fixed to the base wall 10 using stainless steel blind rivets 9. 1mm thick galvanized water-stop sealing plate 11 is installed on the side and bottom of the window opening 12 and fixed with stainless steel blind rivets 9. The fixing interval is 300-500mm.

[0055] S4. Construction of protective reinforcement layer: Apply thick anti-crack mortar to the outside of the composite board, and simultaneously embed the reinforcing mesh 6 into the anti-crack mortar layer 5 to ensure that the reinforcing mesh 6 is completely bonded to the anti-crack mortar.

[0056] S5. Sealing treatment: Fill the joint 15 with flexible fireproof caulking material 13, with a filling depth of not less than 5mm. Apply masking tape along the outside of the joint and apply weather-resistant silicone sealant 14, with a depth of 50% of the joint width and not less than 5mm. Remove the masking tape within 2 hours after applying the sealant.

[0057] S6. Decorative layer construction: After the crack-resistant mortar layer 5 and weather-resistant silicone sealant 14 have cured, apply two coats of flexible water-resistant putty with a total thickness of 5-10mm. After the putty dries, apply the stone-like paint decorative layer 8 to complete the construction.

[0058] The aluminum honeycomb core layer 3, as the core structural support component, is lightweight and high-strength, which reduces the system's weight while ensuring structural stability. The vertical honeycomb structure effectively distributes the load, and the stainless steel blind rivets 9 provide fixation, completely solving the problem of easy detachment in traditional systems. The insulation layer 4 uses a water-repellent self-adhesive rubber-plastic board with low water absorption, avoiding the defects of water absorption and settling of materials such as rock wool, ensuring long-term stable insulation performance. The combination of the reinforcing mesh 6 and the crack-resistant mortar layer 5 improves the system's crack resistance and prevents surface cracking and detachment. The water-stop edge sealing plate 11 and the sealed waterproof structure effectively prevent rainwater penetration and improve the system's waterproof performance. All materials used in the entire system have good fire resistance. The aluminum honeycomb core layer 3 and the insulation layer 4 are not easily combustible, and the caulking material 13 is fire-resistant, which can effectively prevent the spread of fire and solve the problem of flammability of traditional materials such as extruded polystyrene boards.

[0059] The insulation layer 4 is a self-adhesive rubber and plastic board or foamed polyurethane. The insulation layer 4 is a water-repellent material with a water absorption rate of ≤3%, which can effectively avoid the problems of settlement and delamination caused by water absorption of the insulation layer and ensure the long-term stability of the insulation performance.

[0060] Reinforcing mesh 6 is made of steel wire mesh with a mesh count of 8-12 and a wire diameter of 0.8-1.2mm. The overlap width of reinforcing mesh 6 is not less than 50mm to ensure the continuity of the protective reinforcement effect.

[0061] The thickness of the aluminum honeycomb core layer 3 is 20-50mm, and the side length of the honeycomb holes is 10-20mm. The material of the aluminum honeycomb core layer 3 is 3003 series aluminum alloy, which has the characteristics of being lightweight, high-strength, corrosion-resistant, and oxidation-resistant. The vertical honeycomb hole structure of the aluminum honeycomb core layer can provide excellent structural support, effectively distribute the load, and achieve firm fixation with fixing components to prevent the system from falling off.

[0062] The polymer waterproof cement mortar leveling layer 2 is 20mm thick, the crack-resistant mortar layer 5 is 3mm thick, and the flexible water-resistant putty layer 7 is applied in two coats with a total thickness of 5-10mm, which improves the smoothness and adhesion of the decorative surface and ensures the long-lasting decorative effect.

[0063] The water-stop sealing plate 11 is made of 1mm thick galvanized steel plate. The water-stop sealing plate 11 is fixed to the aluminum honeycomb core layer 3 by rivets with a fixing interval of 300-500mm to ensure the sealing and waterproof effect at the joint and prevent damage to the joints such as window openings caused by rainwater infiltration.

[0064] The flexible fireproof caulking material 13 is a flexible fireproof caulking material with a diameter that is 1.2-1.5 times the width of the board joint, ensuring that the caulking material fits tightly to the board joint without gaps; the building sealant is a weather-resistant silicone sealant with excellent weather resistance, waterproofness and adhesion, which can adapt to changes in ambient temperature and wind and rain erosion, and maintain the sealing effect for a long time.

[0065] The stainless steel blind rivets 9 are spaced 400-600mm apart, and the stainless steel blind rivets 9 penetrate into the base wall 10 to a depth of not less than 50mm to ensure that each unit is firmly connected to the base wall, improve the overall stability of the system, and eliminate the risk of falling off.

[0066] The aluminum honeycomb core layer 3 and the insulation layer 4 are bonded together with epoxy resin adhesive with a bonding strength of not less than 0.6MPa, ensuring a firm connection between the two and preventing delamination. At the same time, the epoxy resin adhesive has excellent weather resistance and durability, ensuring long-term stable use of the system.

[0067] Working principle: The aluminum honeycomb core layer 3 serves as the core structural support component. Its lightweight and high-strength characteristics reduce the system's self-weight while ensuring structural stability. The vertical honeycomb structure effectively distributes the load, and the fixing effect of the stainless steel blind rivets 9 completely solves the problem of easy detachment in traditional systems. The insulation layer 4 uses a water-repellent self-adhesive rubber and plastic board with low water absorption, avoiding the defects of water absorption and settling of materials such as rock wool, ensuring long-term stable insulation performance. The combination of the reinforcing mesh 6 and the crack-resistant mortar layer 5 improves the system's crack resistance and prevents the surface layer from cracking and falling off. The water-stop edge sealing plate 11 and the sealing and waterproof structure effectively prevent rainwater penetration and improve the system's waterproof performance. All materials used in the entire system have good fire resistance. The aluminum honeycomb core layer 3 and the insulation layer 4 are not easily combustible, and the caulking material 13 is fire-resistant, which can effectively prevent the spread of fire and solve the problem of flammability of traditional extruded polystyrene boards and other materials.

[0068] The above description of the embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An aluminum honeycomb exterior wall system with internal thermal insulation, characterized in that, It includes, from the inside out, a base layer adapter unit, a structural support and insulation unit, a protective reinforcement unit and a decorative unit, as well as fixing components for fixing each unit and a sealing and waterproof structure for sealing the nodes; The structural support insulation unit includes an aluminum honeycomb core layer (3) and an insulation layer (4) composited on both sides of the aluminum honeycomb core layer (3). The honeycomb holes of the aluminum honeycomb core layer (3) are arranged vertically. The base layer adapter unit includes a special interface agent layer (1) and a polymer waterproof cement mortar leveling layer (2). The special interface agent layer (1) is attached to the base wall (10), and the polymer waterproof cement mortar leveling layer (2) is composite on the outside of the special interface agent layer (1). The protective reinforcement unit includes a crack-resistant mortar layer (5) and a reinforcing mesh (6), wherein the reinforcing mesh (6) is embedded in the crack-resistant mortar layer (5); The decorative unit includes a flexible water-resistant putty layer (7) and a real stone paint decorative layer (8). The flexible water-resistant putty layer (7) is composited on the outside of the crack-resistant mortar layer (5), and the real stone paint decorative layer (8) is coated on the outside of the flexible water-resistant putty layer (7). The fixing components include stainless steel blind rivets (9), window openings (12) and water-stop sealing plates (11). The stainless steel blind rivets (9) pass through each unit and are fixed to the base wall (10). The water-stop sealing plates (11) are set on the side and bottom of the window openings (12). The sealing and waterproof structure includes a flexible fireproof caulking material (13) and a weather-resistant silicone sealant (14). The flexible fireproof caulking material (13) is embedded in the base wall (10) through the board joint, and the weather-resistant silicone sealant (14) is sealed on the outside of the flexible fireproof caulking material (13).

2. The aluminum honeycomb exterior wall system with internal thermal insulation as described in claim 1, characterized in that, The insulation layer 4 is a self-adhesive rubber and plastic board or foamed polyurethane, and the insulation layer 4 is a water-repellent material with a water absorption rate of ≤3%.

3. The aluminum honeycomb exterior wall system with internal thermal insulation as described in claim 1, characterized in that, The reinforcing mesh 6 is a steel wire mesh with a mesh count of 8-12 and a wire diameter of 0.8-1.2 mm. The overlap width of the reinforcing mesh 6 is not less than 50 mm.

4. The aluminum honeycomb exterior wall system with internal thermal insulation as described in claim 1, characterized in that, The aluminum honeycomb core layer 3 has a thickness of 20-50mm and a honeycomb hole side length of 10-20mm. The material of the aluminum honeycomb core layer 3 is 3003 series aluminum alloy.

5. The aluminum honeycomb exterior wall system with internal thermal insulation as described in claim 1, characterized in that, The thickness of the polymer waterproof cement mortar leveling layer (2) is 20mm, the thickness of the crack-resistant mortar layer (5) is 3mm, and the flexible water-resistant putty layer (7) is applied in two coats with a total thickness of 5-10mm.

6. The aluminum honeycomb exterior wall system with internal thermal insulation according to claim 1, characterized in that, The water-stop sealing plate (11) is a 1mm thick galvanized steel plate. The water-stop sealing plate (11) and the aluminum honeycomb core layer (3) are fixed by rivets with a fixing spacing of 300-500mm.

7. The aluminum honeycomb exterior wall system with internal thermal insulation according to claim 1, characterized in that, The flexible fireproof caulking material (13) is a flexible fireproof caulking material, and the diameter of the flexible fireproof caulking material (13) is 1.2-1.5 times the width of the board joint.

8. The aluminum honeycomb exterior wall system with internal thermal insulation as described in claim 1, characterized in that, The stainless steel blind rivets (9) are spaced 400-600mm apart, and the stainless steel blind rivets (9) penetrate into the base wall (10) to a depth of not less than 50mm.

9. The aluminum honeycomb exterior wall system with internal thermal insulation according to claim 1, characterized in that, The aluminum honeycomb core layer (3) and the insulation layer (4) are bonded together by epoxy resin adhesive.

10. A construction method for an aluminum honeycomb exterior wall system with internal thermal insulation, characterized in that, Includes the following steps: S1. Base treatment and acceptance: Clean the floating dust, oil stains and loose layer on the surface of the base wall (10), apply a special interface agent layer (1), and after the interface agent has cured, apply a 20mm thick polymer waterproof cement mortar leveling layer (2). The tensile bond strength between the polymer waterproof cement mortar leveling layer (2) and the base wall (10) should not be less than 0.3MPa. S2. Installation of structural support insulation unit: The aluminum honeycomb core layer (3) and the insulation layer (4) are pre-composite to form a composite board using epoxy resin adhesive. The composite board is laid from bottom to top, and the gap between adjacent composite boards is controlled at 5-10mm. S3. Installation of fixed components: The composite board is fixed to the base wall (10) using stainless steel blind rivets (9). 1mm thick galvanized water-stop sealing plate (11) is installed on the side and bottom of the window opening (12) and fixed by stainless steel blind rivets (9) with a fixing spacing of 300-500mm. S4. Construction of protective reinforcement layer: Apply thick anti-crack mortar to the outside of the composite board, and simultaneously embed the reinforcement mesh (6) into the anti-crack mortar layer (5) to ensure that the reinforcement mesh (6) is completely bonded to the anti-crack mortar; S5. Sealing treatment: Fill the gap (15) with flexible fireproof caulking material (13) with a filling depth of not less than 5mm, apply masking tape along the outside of the gap, apply weather-resistant silicone sealant (14) with a depth of 50% of the gap width and not less than 5mm, and remove the masking tape within 2 hours after applying the sealant. S6. Decorative layer construction: After the crack-resistant mortar layer (5) and weather-resistant silicone sealant (14) have cured, apply two coats of flexible water-resistant putty with a total thickness of 5-10mm. After the putty dries, apply the real stone paint decorative layer (8) to complete the construction.

Images