Structure for preventing and treating leakage diseases, deterioration and decay of outer wall
By installing water-blocking structures and drainage devices on the exterior walls of buildings, the problems of leakage and deterioration of exterior walls are solved, enabling timely drainage of moisture and drying of the walls, thus extending the service life of the exterior walls.
Patent Information
- Application Number
- CN202520491389.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-19
AI Technical Summary
The lack of drainage structure in the exterior walls of existing buildings leads to water seepage that cannot be discharged in time, resulting in an alternating state of dryness and wetness inside the walls. This affects the integrity and durability of the walls, and accelerates the degradation of material properties.
The system combines a water-blocking structure with a drainage device. The water-blocking structure is located on the exterior wall edge beam or window lintel, while the drainage device connects the inside and outside of the exterior wall surface structure layer and includes a water-permeable and breathable non-woven fabric and a drainage pipe to ensure timely drainage of moisture.
It effectively prevents external wall leakage and deterioration, keeps the wall dry, slows down the rate of material performance degradation, and has a simple structure and is easy to construct.
Smart Images
Figure CN223964042U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technology in the field of building construction, and in particular to a structure for preventing and controlling leakage and deterioration of exterior walls. Background Technology
[0002] Exterior wall leakage and cracking are common quality defects in buildings. They not only affect functionality and appearance but also exacerbate wall weathering and the deterioration, decay, and peeling of the finishing layer. Exterior wall leakage refers to the phenomenon of water seeping into the interior of a building's exterior walls due to various reasons. This leakage can be caused by a variety of factors, such as design flaws, construction quality problems, material aging, and environmental factors. Deterioration and decay refer to the process by which building exterior wall materials gradually lose their original properties during use due to various reasons (such as chemical erosion, physical wear, and biological corrosion).
[0003] Currently, all building exteriors are equipped with an external facade structural layer, typically an external thermal insulation layer or an external stone curtain wall layer. However, current building exteriors lack drainage structures for this layer, resulting in water or moisture entering and being unable to drain away promptly. This causes the interior of the exterior wall to be in a constant cycle of wet and dry conditions, compromising the wall's integrity, durability, and stability, accelerating material degradation, and ultimately inducing deterioration and decay of the building's exterior walls. Therefore, it is necessary to research a solution to these problems. Utility Model Content
[0004] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide a structure for preventing and controlling external wall leakage and deterioration, which can effectively solve the problem that existing buildings are prone to external wall leakage and deterioration.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A structure for preventing leakage and deterioration of exterior walls includes a water-blocking structure and a drainage device. The water-blocking structure is integrated with the main body of the building and is located on the outdoor surface of the exterior wall edge beams or window lintels on each floor of the building. The drainage device is installed at the top and bottom of the water-blocking structure and connects the inner and outer sides of the exterior wall exterior surface structural layer of the building.
[0007] As a preferred embodiment, the water-blocking structure protrudes from the exterior wall surface construction layer by more than 10 mm. The top of the water-blocking structure is designed with an outward sloping drainage slope that is higher on the inside and lower on the outside. The bottom of the water-blocking structure is designed with a drip line or beak structure to prevent outdoor water from flowing back into the exterior wall surface construction layer.
[0008] As a preferred embodiment, the drainage device comprises multiple holes arranged along the top and bottom of the water-blocking structure. Each hole connects the interior of the exterior wall structure layer to the outside, and the distance between two adjacent holes is no more than 50 mm.
[0009] As a preferred embodiment, a water-permeable and air-permeable nonwoven fabric is disposed in the holes.
[0010] As a preferred option, when constructing a new project, the water-blocking structure is cast simultaneously with the concrete structure of the building's exterior wall edge beams, window lintels, and roof railing capping area.
[0011] As a preferred embodiment, the exterior wall surface structure layer is an exterior wall insulation structure layer. When used to control water leakage in the exterior wall insulation structure layer, the water-blocking structure includes a ceramic foam profile. The ceramic foam profile is bonded and fixed to the concrete structure of the exterior wall edge beams, window lintels, or roof railings on each floor of the building by a cement-based polymer adhesive. Furthermore, a polymer anti-seepage and moisture-proof coating is provided on the top of the ceramic foam profile.
[0012] As a preferred embodiment, an L-shaped or T-shaped stainless steel profile support plate is anchored at intervals of 200 to 500 mm in the middle of the base surface of the concrete structure to which the ceramic foam profile is bonded. The stainless steel profile support plate protrudes outward and is parallel to the water-blocking structure. The ceramic foam profile has a groove, and the stainless steel profile support plate is embedded in the groove for fixation.
[0013] As a preferred embodiment, the exterior wall surface structure layer is an exterior stone curtain wall structure layer. When used to treat water leakage in the exterior stone curtain wall structure layer, the aforementioned water-blocking structure is formed by reconstructing a reinforced concrete structure using anchored steel bars, formwork, and concrete pouring techniques. The water-blocking structure has a permeable crystalline self-healing waterproof material and a waterstop.
[0014] As a preferred embodiment, the water-blocking structure is a stainless steel profile water-blocking component, which is fixed by anchors and sealed with adhesive sealant.
[0015] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:
[0016] By setting up a water-blocking structure and a drainage device, the water-blocking structure blocks water, and the drainage device drains water, allowing water or moisture that has entered the exterior wall's structural layer to be discharged in a timely manner. This prevents water from accumulating and spreading inside the exterior wall, which would accelerate wall weathering and slow down the degradation rate of the wall and structural layer's materials. This effectively prevents and controls exterior wall leakage and deterioration. This invention has a simple structure, is easy to construct, and is worthy of widespread use.
[0017] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description
[0018] Figure 1 This is a cross-sectional schematic diagram of the first preferred embodiment of the present invention;
[0019] Figure 2 yes Figure 1 Enlarged view of position A in the middle;
[0020] Figure 3 yes Figure 1 An enlarged schematic diagram of another structure at position A in the middle;
[0021] Figure 4 This is a cross-sectional schematic diagram of the second preferred embodiment of the present invention;
[0022] Figure 5 This is a cross-sectional schematic diagram of the third preferred embodiment of the present invention;
[0023] Figure 6 This is a cross-sectional schematic diagram of the fourth preferred embodiment of the present invention;
[0024] Figure 7 This is a cross-sectional schematic diagram of the fifth preferred embodiment of the present invention;
[0025] Figure 8 This is a cross-sectional schematic diagram of the sixth preferred embodiment of the present invention;
[0026] Figure 9 This is a cross-sectional schematic diagram of the seventh preferred embodiment of the present invention;
[0027] Figure 10 yes Figure 9 A magnified view of a portion of the image;
[0028] Figure 11 This is a cross-sectional schematic diagram of the eighth preferred embodiment of the present invention;
[0029] Figure 12 This is a cross-sectional schematic diagram of the ninth preferred embodiment of the present invention;
[0030] Figure 13 This is a cross-sectional schematic diagram of the tenth preferred embodiment of the present invention;
[0031] Figure 14 This is a cross-sectional schematic diagram of the eleventh preferred embodiment of the present invention;
[0032] Figure 15 This is a cross-sectional schematic diagram of the twelfth preferred embodiment of the present invention.
[0033] Explanation of reference numerals in the attached diagram:
[0034] 10. Water barrier structure 11. Drainage slope
[0035] 12. Drip line 13. Eagle beak structure
[0036] 14. Ceramic foam profiles; 141. Grooves
[0037] 15. Stainless steel profile support plate 16. Reinforcing steel bars
[0038] 17. Reinforced concrete structure; 18. Stainless steel profile drainage components.
[0039] 19. Anchor nails 101. Cement-based polymer adhesive
[0040] 102. Polymer anti-seepage and moisture-proof coating; 103. Transparent crystalline self-healing waterproof material.
[0041] 104. Waterstop strip; 105. Adhesive sealant
[0042] 106. Foamed ceramic insulation board; 107. Mortar plaster layer
[0043] 108. Cement-based polymer binder; 109. Steel mesh belt
[0044] 110. Steel nails; 111. Drip line
[0045] 112. Eagle beak structure; 20. Drainage device
[0046] 21. Holes 22. Water-permeable and breathable nonwoven fabric
[0047] 23. Vent pipe 24. Drain pipe
[0048] 25. Water-permeable and breathable non-woven fabric 26. Hydrophobic and breathable pores
[0049] 30. Building; 31. Exterior wall edge beam
[0050] 32. Window lintel; 33. Exterior wall exterior structural layer
[0051] 331. Insulation layer; 332. Finishing layer
[0052] 34. Masonry exterior wall 301, First special mortar
[0053] 302, Second Special Mortar; 303, Third Special Mortar
[0054] 304. Fourth Special Mortar. Detailed Implementation
[0055] Please refer to Figures 1 to 3 As shown, it illustrates the specific structure of the first preferred embodiment of the present invention, including a water-blocking structure 10 and a drainage device 20.
[0056] The water-blocking structure 10 is integrated with the main body of the building 30. The water-blocking structure 10 is located on the outdoor surface of the exterior wall edge beams 31 or window lintels 32 on each floor of the building 30. In this embodiment, the water-blocking structure 10 protrudes from the exterior wall surface structural layer 33 by at least 10 millimeters. The top of the water-blocking structure 10 is configured with an outward-sloping drainage slope 11 (higher on the inside, lower on the outside), and the bottom of the water-blocking structure 10 is configured as a drip line 12 (e.g., to prevent outdoor water from flowing back into the exterior wall surface structural layer 33) to prevent water from entering the building. Figure 3 (as shown) or eagle beak structure 13 (as shown) Figure 2 As shown), the water-blocking effect is better and not limited. In addition, when constructing a new project, the water-blocking structure 10 is cast simultaneously with the concrete structure of the exterior wall edge beam 31, window lintel 32 and roof railing capping area of the building 30.
[0057] The drainage device 20 is disposed at the top and bottom of the water-blocking structure 10, and the drainage device 20 connects the inner and outer sides of the exterior wall surface construction layer 33 of the building 30. In this embodiment, the drainage device 20 consists of multiple holes 21, which are arranged along the top and bottom of the water-blocking structure 10. Each hole 21 connects the interior of the exterior wall surface construction layer 33 to the outside, and the distance between two adjacent holes 21 is no more than 50 mm. Furthermore, a water-permeable and breathable non-woven fabric 22 is disposed in each hole 21 and is embedded in the exterior wall surface construction layer 33. In addition, the exterior wall surface construction layer 33 includes an insulation layer 331 and a finishing layer 332. The insulation layer 331 is adhered and fixed to the exterior wall surface, and the finishing layer 332 is adhered and fixed to the outer surface of the insulation layer 331.
[0058] During daily use, the water-blocking structure 10 serves to block water. When it rains or is humid, external water or moisture enters the exterior wall surface structure layer 33, and the water can be discharged immediately through the holes 21 located on the lower side. After the rain or humid weather, due to the setting of the holes 21 and the installation of the water-permeable and breathable non-woven fabric 22, the moisture inside the exterior wall surface structure layer 33 is evaporated to the outside, thus keeping the interior of the exterior wall surface structure layer 33 dry and preventing long-term dampness, thereby achieving the purpose of preventing exterior wall leakage and deterioration.
[0059] Please refer to Figure 4 As shown, it illustrates the specific structure of the second preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as that of the aforementioned first preferred embodiment, except that:
[0060] In this embodiment, the drainage device 20 includes a vent pipe 23 and a drain pipe 24. The vent pipe 23 and the drain pipe 24 are inserted into corresponding holes 21. The vent pipe 23 is located at the bottom of the water barrier structure 10, and the drain pipe 24 is located at the top of the water barrier structure 10. Both the vent pipe 23 and the drain pipe 24 are pre-embedded in the exterior surface construction layer 33 of the exterior wall.
[0061] During daily use, the water-blocking structure 10 serves to block water. When it rains or is humid, external water or moisture enters the exterior wall surface structure layer 33, and the water can be discharged immediately through the drain pipe 24 located on the lower side. After the rain or humid weather, due to the installation of the vent pipe 23 and the drain pipe 24, the moisture inside the exterior wall surface structure layer 33 is evaporated to the outside, thus keeping the interior of the exterior wall surface structure layer 33 dry and preventing long-term dampness, thereby achieving the purpose of preventing exterior wall leakage and deterioration.
[0062] Please refer to Figure 5 As shown, it illustrates the specific structure of the third preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as that of the aforementioned first preferred embodiment, except that:
[0063] The exterior wall surface structure layer 33 is an exterior wall insulation structure layer. When used to control water leakage in the exterior wall insulation structure layer, the water-blocking structure 10 includes a ceramic foam profile 14. The ceramic foam profile 14 is bonded and fixed to the concrete structure of the exterior wall edge beam 31, window lintel 32, or roof railing capping of each floor of the building 30 by a cement-based polymer adhesive 101. The top of the ceramic foam profile 14 is provided with a polymer anti-seepage and moisture-proof coating 102. The drainage device 20 includes a vent pipe 23 and a drain pipe 24. The broken parts of the exterior wall insulation structure layer below the water-blocking structure 10 are repaired with a first special mortar 301 and the vent pipe 23 is pre-embedded. The broken parts of the exterior wall insulation structure layer above the water-blocking structure 10 are repaired with a second special mortar 302 and the drain pipe 24 is pre-embedded.
[0064] During daily use, the water-blocking structure 10 serves to block water. When it rains or is humid, external water or moisture enters the exterior wall surface structure layer 33, and the water can be discharged immediately through the drain pipe 24 located on the lower side. After the rain or humid weather, due to the installation of the vent pipe 23 and the drain pipe 24, the moisture inside the exterior wall surface structure layer 33 is evaporated to the outside, thus keeping the interior of the exterior wall surface structure layer 33 dry and preventing long-term dampness, thereby achieving the purpose of preventing exterior wall leakage and deterioration.
[0065] Please refer to Figure 6 As shown, it illustrates the specific structure of the fourth preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as that of the aforementioned third preferred embodiment, except that:
[0066] An L-shaped or T-shaped stainless steel profile support plate 15 is anchored at intervals of 200-500 mm in the middle of the base surface of the concrete structure on which the ceramic foam profile 14 is bonded. The stainless steel profile support plate 15 protrudes outward and is parallel to the water-blocking structure 10. The ceramic foam profile 14 has a groove 141, and the stainless steel profile support plate 15 is embedded in the groove 141 for fixation, so that the ceramic foam profile 14 is firmly bonded to the concrete structure at the outer wall edge beam 31, window lintel 32 or roof railing cap of each floor of the building 30.
[0067] The usage method of this embodiment is basically the same as that of the aforementioned third preferred embodiment, and the usage method of this embodiment will not be described in detail here.
[0068] Please refer to Figure 7 As shown, it illustrates the specific structure of the fifth preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as that of the aforementioned fourth preferred embodiment, except that:
[0069] The drainage device 20 includes a water-permeable and breathable non-woven fabric 25. The fractures of the external wall insulation structure layer above and below the water-blocking structure 10 are repaired with a special third-grade mortar 303 and the water-permeable and breathable non-woven fabric 25 is pre-embedded.
[0070] The usage method of this embodiment is basically the same as that of the aforementioned fourth preferred embodiment, and the usage method of this embodiment will not be described in detail here.
[0071] Please refer to Figure 8 As shown, it illustrates the specific structure of the sixth preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as that of the aforementioned fourth preferred embodiment, except that:
[0072] The broken parts of the external wall insulation structure above and below the water barrier structure 10 are repaired with the fourth special mortar 304. Before the fourth special mortar 304 has formed strength, water-draining and ventilating holes 26 with a diameter of φ5-φ10mm are inserted to achieve the purpose of drainage.
[0073] The usage method of this embodiment is basically the same as that of the aforementioned fourth preferred embodiment, and the usage method of this embodiment will not be described in detail here.
[0074] Please refer to Figure 9 and Figure 10 As shown, it illustrates the specific structure of the seventh preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as that of the aforementioned first preferred embodiment, except that:
[0075] The exterior exterior structural layer 33 is an exterior stone curtain wall structural layer. When used to treat water leakage in the exterior stone curtain wall structural layer, the reinforced concrete structure 17 is reconstructed by anchoring steel bars 16, supporting formwork and pouring concrete to form the aforementioned water-blocking structure 10. The water-blocking structure 10 has a translucent crystalline self-healing waterproof material 103 and a waterstop 104. The waterstop 104 is a CL adhesive type waterstop.
[0076] The usage method of this embodiment is basically the same as that of the first preferred embodiment described above, and the usage method of this embodiment will not be described in detail here.
[0077] Please refer to Figure 11 As shown, it illustrates the specific structure of the eighth preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as that of the aforementioned second preferred embodiment, except that:
[0078] The water barrier structure 10 is a stainless steel profile water barrier component 18, which is fixed by anchors 19 and sealed with adhesive sealant 105.
[0079] The usage method of this embodiment is basically the same as that of the aforementioned second preferred embodiment, and the usage method of this embodiment will not be described in detail here.
[0080] Please refer to Figure 12 As shown, it illustrates the specific structure of the ninth preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as that of the aforementioned third preferred embodiment, except that:
[0081] In this embodiment, the water-barrier structure 10 includes a foamed ceramic insulation board 106 and a mortar plaster layer 107. The foamed ceramic insulation board 106 is bonded and fixed to the outer side of the main body of the building 30 by a cement-based polymer adhesive 108, and is also bound and fixed by multiple steel mesh straps 109. The steel mesh straps 109 are arranged at intervals along the length of the foamed ceramic insulation board 106, and the upper and lower ends of each steel mesh strap 109 are fixed to the main body of the building 30 by steel nails 110. The mortar plaster layer 107 is formed and covers the foamed ceramic insulation board 106, and a drip line 111 is provided on the outer edge of the bottom surface of the mortar plaster layer 107. Furthermore, the water-barrier structure 10 is located on the outer wall edge beams 31 of each floor of the building 30. In addition, the steel mesh belt 109 is set at intervals of 300-600mm along the length of the foamed ceramic insulation board 106, and drainage devices 20 with a diameter of φ3-6mm are set at intervals of 30-50mm along the top and bottom of the foamed ceramic insulation board 106 (the drainage device 20 can be non-woven fabric, drainage holes or pipe roots, etc.).
[0082] The usage method of this embodiment is basically the same as that of the aforementioned third preferred embodiment, and the usage method of this embodiment will not be described in detail here.
[0083] Please refer to Figure 13 As shown, it illustrates the specific structure of the tenth preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as that of the aforementioned ninth preferred embodiment, except that:
[0084] In this embodiment, the outer edge of the bottom surface of the mortar plaster layer 107 is provided with an eagle beak structure 112.
[0085] The usage method of this embodiment is basically the same as that of the aforementioned ninth preferred embodiment, and the usage method of this embodiment will not be described in detail here.
[0086] Please refer to Figure 14As shown, it illustrates the specific structure of the eleventh preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as that of the aforementioned ninth preferred embodiment, except that:
[0087] The water-blocking structure 10 is located on the masonry exterior wall 34 of the building 30.
[0088] The usage method of this embodiment is basically the same as that of the aforementioned ninth preferred embodiment, and the usage method of this embodiment will not be described in detail here.
[0089] Please refer to Figure 15 As shown, it illustrates the specific structure of the twelfth preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as that of the aforementioned tenth preferred embodiment, except that:
[0090] The water-blocking structure 10 is located on the masonry exterior wall 34 of the building 30.
[0091] The usage method of this embodiment is basically the same as that of the aforementioned tenth preferred embodiment, and the usage method of this embodiment will not be described in detail here.
[0092] The key design feature of this invention is that by setting up a water-blocking structure and a drainage device, the water-blocking structure blocks water, and the drainage device drains water, allowing water or moisture that enters the exterior wall's structural layer to be discharged in a timely manner. This prevents water from accumulating and spreading inside the exterior wall, thus avoiding accelerated wall weathering and slowing down the degradation rate of the wall and structural layer's materials. The invention effectively prevents and controls exterior wall leakage and deterioration. This invention has a simple structure, is easy to construct, and is worthy of widespread use.
[0093] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. A structure for preventing and controlling leakage and deterioration of exterior walls, characterized in that: It includes a water-blocking structure and a drainage device; the water-blocking structure is integrated with the main body of the building and is located on the outdoor surface of the exterior wall edge beams or window lintels on each floor of the building; the drainage device is installed on the top and bottom of the water-blocking structure and connects the inner and outer sides of the exterior wall exterior surface structural layer of the building.
2. The structure for preventing and controlling leakage and deterioration of external walls according to claim 1, characterized in that: The water-blocking structure protrudes from the exterior wall surface construction layer by more than 10 mm. The top of the water-blocking structure is designed with an outward slope for drainage, which is higher on the inside and lower on the outside. The bottom of the water-blocking structure is designed to prevent outdoor water from flowing back into the exterior wall surface construction layer as a drip line or beak structure.
3. The structure for preventing and controlling leakage and deterioration of external walls according to claim 1, characterized in that: The drainage device consists of multiple holes arranged along the top and bottom of the water-blocking structure. Each hole connects the interior of the exterior wall structure to the outside, and the distance between two adjacent holes is no more than 50 mm.
4. The structure for preventing and controlling leakage and deterioration of external walls according to claim 3, characterized in that: The holes are filled with water-permeable and air-permeable non-woven fabric.
5. The structure for preventing and controlling leakage and deterioration of exterior walls according to claim 1 or 2, characterized in that: When constructing a new project, the water-blocking structure is cast in parallel with the concrete structure of the building's exterior wall edge beams, window lintels, and roof railing capping area.
6. The structure for preventing and controlling leakage and deterioration of external walls according to claim 1, characterized in that: The exterior wall surface structure layer is an exterior wall insulation structure layer. When used to control water leakage in the exterior wall insulation structure layer, the water-blocking structure includes a ceramic foam profile. The ceramic foam profile is bonded and fixed to the concrete structure of the exterior wall edge beams, window lintels, or roof railings on each floor of the building by a cement-based polymer adhesive. Furthermore, a polymer anti-seepage and moisture-proof coating is provided on the top of the ceramic foam profile.
7. The structure for preventing and controlling leakage and deterioration of external walls according to claim 6, characterized in that: An L-shaped or T-shaped stainless steel profile support plate is anchored at intervals of 200 to 500 mm in the middle of the base surface of the concrete structure on which the ceramic foam profile is bonded. The stainless steel profile support plate protrudes outward and is parallel to the water barrier structure. The ceramic foam profile has a groove, and the stainless steel profile support plate is embedded in the groove for fixation.
8. The structure for preventing and controlling leakage and deterioration of external walls according to claim 1, characterized in that: The exterior wall surface structure layer is an exterior stone curtain wall structure layer. When used to treat water leakage in the exterior stone curtain wall structure layer, the aforementioned water-blocking structure is formed by reconstructing a reinforced concrete structure using anchored steel bars, formwork, and concrete pouring technology. The water-blocking structure has a permeable crystalline self-healing waterproof material and a waterstop.
9. The structure for preventing and controlling leakage and deterioration of external walls according to claim 1, characterized in that: The water-blocking structure is a stainless steel profile water-blocking component, which is fixed by anchors and sealed with adhesive sealant.
10. The structure for preventing and controlling leakage and deterioration of exterior walls according to claim 1, characterized in that: The water-blocking structure includes a foamed ceramic insulation board and a mortar plaster layer. The foamed ceramic insulation board is bonded and fixed to the outer side of the main body of the building with a cement-based polymer adhesive. The foamed ceramic insulation board is also bound and fixed by multiple steel mesh straps. The multiple steel mesh straps are arranged at intervals along the length of the foamed ceramic insulation board. The upper and lower ends of each steel mesh strap are fixed to the main body of the building with steel nails. The mortar plaster layer is formed and covers the foamed ceramic insulation board. The bottom outer edge of the mortar plaster layer is provided with a drip line or a beak structure.