Multi-layer waterproof municipal building structure and use method thereof

Abstract

The invention relates to the technical field of municipal buildings, and discloses a multi-layer waterproof municipal building structure and a using method thereof.The multi-layer waterproof municipal building structure comprises an outer wrapping plate, a waterproof plate is fixedly installed at the top of the outer wrapping plate, a plurality of drainage grooves distributed at equal intervals are formed in the top of the waterproof plate, the section of each drainage groove is in a V shape, a gypsum board is arranged in the outer wrapping plate, and a waterproof layer is arranged on the outer wrapping plate. According to the invention, a dual drainage path is formed through overall inclined arrangement and matching of the V-shaped structure of the drainage groove and the V-shaped groove and the drainage coating, the overlong size of the waterproof plate can prevent water flow from directly contacting with the gypsum board, damping of the gypsum board is reduced from the source, the V-shaped groove has a ventilation function, the heating assembly can intelligently control temperature and prevent icing in winter, and the heating efficiency is improved. The problem of accumulated water infiltration of a traditional structure is solved, the risk of low-temperature icing blockage is avoided, the protection effects of drainage, ventilation and icing prevention are achieved, and the waterproof and damp-proof stability is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of municipal building technology, specifically to a multi-layer waterproof municipal building structure and its application method. Background Technology

[0002] Generally, to prevent water from seeping into certain parts of municipal buildings, existing municipal buildings use waterproof building structures. Waterproof building structures are mostly used in roofs, underground buildings, and water storage structures. Multi-layered waterproof structures use a variety of materials to block the passage of water in order to achieve the purpose of waterproofing or increase the ability to resist leakage.

[0003] To address the aforementioned technical problems, the applicant has retrieved some existing technologies to achieve waterproofing and anti-seepage effects in building structures. For example, patent publication number CN221609235U mainly employs a method where the groove at the top of the outer cladding board allows water to be drawn into the channel via an arc-shaped protrusion, and then quickly diverted and drained through a diversion plate and a water guide channel to prevent water seepage. Furthermore, the ventilation channel corresponds to the arc-shaped groove at the top of the gypsum board, both draining water that has seeped into the gypsum board and ventilating and drying the moisture inside the gypsum board to prevent dampness. However, the applicant's analysis reveals that this technical solution has the following drawbacks: the arc-shaped groove in the gypsum board and the ventilation channel in the outer cladding board are open designs, making it prone to freezing and blocking the drainage channels in low-temperature winter conditions. Additionally, water seeping into the outer cladding board can cause peeling of the inner wall, and the peeling debris falling into the channel exacerbates the blockage, ultimately compromising the structure's waterproofing and moisture-proof capabilities. Therefore, this invention aims to provide a multi-layered waterproof municipal building structure and its usage method that can ensure stable drainage, ventilation, and waterproofing functions in low-temperature environments. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a multi-layer waterproof municipal building structure and its application method, thereby solving the technical problems in the prior art.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A multi-layered waterproof municipal building structure, comprising:

[0007] An outer cladding panel has a waterproof board fixedly installed on its top. The waterproof board has multiple equally spaced drainage grooves on its top, each with a V-shaped cross-section. A gypsum board is installed inside the outer cladding panel. The gypsum board has multiple equally spaced V-shaped grooves on its top, each with a V-shaped cross-section. Multiple heating components are installed inside the gypsum board to heat the V-shaped grooves. A leak-proof mesh is installed on the top of the gypsum board. When the outer cladding panel is fitted onto the top of the gypsum board, the leak-proof mesh fits snugly against the top wall of the outer cladding panel. Multiple equally spaced V-shaped holes are opened at both ends of the outer cladding panel, and these V-shaped holes communicate with the V-shaped grooves.

[0008] The inner lining board is fixedly installed on the bottom of the gypsum board, and multiple waterproof membranes are embedded in the inner lining board at equal intervals, with the multiple waterproof membranes arranged vertically.

[0009] Preferably, the heating assembly includes a heating cavity, an extension cavity, and a heating tube. The gypsum board has multiple equally spaced heating cavities, and the heating tube is placed inside the heating cavity. Each heating cavity has an extension cavity facing the V-shaped groove. Both ends of the outer covering plate have multiple equally spaced circular holes that communicate with the heating cavity. Each circular hole is fitted with a removable sealing plug for sealing the circular hole.

[0010] Preferably, a bracket is fitted onto the outer circular surface of the sealing plug, and the bracket is detachably connected to the sealing plug. The end of the bracket away from the sealing plug extends to an adjacent V-shaped hole. Two symmetrically arranged sealing plugs have a rod inserted into one end, the rod passing through the V-shaped groove. A thermometer and hygrometer are fixedly installed on the rod, and the thermometer and hygrometer are connected to the heating tube.

[0011] Preferably, a protrusion is fixedly installed on the outer circular surface of the sealing plug, and a groove is provided on the bracket. When the bracket is sleeved on the sealing plug, the groove engages with the protrusion.

[0012] Preferably, a round block is fixedly installed at one end of the insertion rod, and the round block abuts against the bracket.

[0013] Preferably, the top of the gypsum board has multiple cement grooves arranged at equal intervals, the anti-leakage net covers the cement grooves, and the top wall of the outer wrapping board is fixedly installed with multiple rough blocks arranged at equal intervals, and the multiple rough blocks correspond one-to-one with the multiple cement grooves.

[0014] Preferably, a pressure block is slidably installed at both ends of the top wall of the outer wrapping board, and an elastic pad is fixedly installed on the top of the pressure block. The elastic pad is connected to the outer wrapping board. When the outer wrapping board is slidably fitted onto the gypsum board, the pressure block abuts against both ends of the leak-proof mesh, and the elastic pad is compressed and deformed.

[0015] A method for using a multi-layer waterproof municipal building structure, the method being applied to the multi-layer waterproof municipal building structure as described above, the method comprising the following steps:

[0016] Step S1: Pre-fabricated waterproof board with V-shaped cross-section drainage groove, gypsum board with V-shaped cross-section and built-in heating cavity, and inner lining board with vertically laid waterproof membrane.

[0017] Step S2: Place the inner lining board horizontally and secure it with bolts or pour cement. Install the plasterboard on top of the inner lining board, insert the heating pipe into the heating chamber and connect the heating pipe to the external temperature control terminal. Confirm that it can heat the V-shaped groove of the plasterboard normally to avoid freezing in winter.

[0018] Step S3: Place the leak-proof mesh on top of the outer cladding board, then place the outer cladding board on top of the gypsum board, ensuring that the V-shaped holes at both ends of the outer cladding board correspond one-to-one with the V-shaped grooves on top of the gypsum board. Then pour waterproof mortar to fill the joint gap between the outer cladding board and the gypsum board. After the mortar solidifies to form a sealing layer, it will prevent water seepage.

[0019] Step S4: Set the heating threshold and simulate low temperature test to prevent freezing, water test to drain water, and enable after verification.

[0020] The beneficial effects of this invention are:

[0021] 1. In this invention, a dual drainage path is formed by the overall inclined arrangement combined with the V-shaped structure of the drainage channel and the V-shaped groove and the hydrophobic coating. The extra-long size of the waterproof board can also prevent water from directly contacting the gypsum board, reducing the moisture of the gypsum board from the source. At the same time, the V-shaped groove also has a ventilation function. In winter, the heating component can intelligently control the temperature to prevent freezing. This not only solves the problem of water seepage in traditional structures, but also avoids the risk of low-temperature freezing and blockage, achieving the protective effects of drainage, ventilation and anti-freezing, and greatly improving the stability of waterproofing and moisture-proofing.

[0022] 2. In this invention, the heating component can be installed without disassembly through a round hole and a removable sealing plug. The thermometer and hygrometer on the plug can detect the temperature and humidity in real time and automatically start heating. Opening the plug can also switch to ventilation mode, which simplifies the installation and maintenance process of the heating component and realizes the reuse of intelligent temperature control and ventilation functions. At the same time, the combination of cement trough and rough block increases the connection area between the outer wrapping board and the gypsum board, improves the cement bonding firmness, and takes into account both operation convenience and structural stability.

[0023] 3. In this invention, the anti-leakage mesh on the top of the gypsum board can catch the wall plaster that has fallen off the inner wall of the outer cladding board, preventing the wall plaster from blocking the V-shaped groove. The pressure block and elastic pad can fix the position of the anti-leakage mesh in advance when the outer cladding board is fitted onto the gypsum board, preventing the anti-leakage mesh from shifting. The inner lining board and waterproof membrane at the bottom of the gypsum board can also achieve local water seepage isolation. Attached Figure Description

[0024] The invention will now be further described with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall cross-section of the structure in this invention;

[0027] Figure 3This is a schematic diagram of the structure of the gypsum board in this invention;

[0028] Figure 4 This is a schematic diagram of the outer cladding panel from a horizontal perspective in this invention;

[0029] Figure 5 This is a schematic diagram of the inclined state of the outer wrapping plate in this invention;

[0030] Figure 6 This is a schematic diagram of the internal structure of the outer wrapping plate in this invention;

[0031] Figure 7 This is a cross-sectional structural schematic diagram of the outer wrapping plate in this invention.

[0032] In the diagram: 1. Outer cladding; 2. Waterproof board; 3. Drainage groove; 4. V-shaped hole; 5. Gypsum board; 6. V-shaped groove; 7. Cement groove; 8. Inner lining board; 9. Waterproof membrane; 10. Heating chamber; 11. Extension chamber; 12. Round hole; 13. Rough block; 14. Sealing plug; 15. Bracket; 16. Insert rod; 17. Thermometer and hygrometer; 18. Round block; 19. Heating tube; 20. Leakage prevention mesh; 21. Pressure block; 22. Elastic pad; 23. Protrusion; 24. Groove. Detailed Implementation

[0033] 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.

[0034] Please see Figures 1-7 As shown, the present invention is a multi-layer waterproof municipal building structure, comprising:

[0035] An outer cladding panel 1 is fitted with a waterproof panel 2 fixedly installed on its top. The top of the waterproof panel 2 has multiple equally spaced drainage channels 3, each with a V-shaped cross-section. A gypsum board 5 is installed inside the outer cladding panel 1. The top of the gypsum board 5 has multiple equally spaced V-shaped grooves 6, each with a V-shaped cross-section. Multiple heating components are installed inside the gypsum board 5 to heat the V-shaped grooves 6. A leak-proof mesh 20 is installed on the top of the gypsum board 5. When the outer cladding panel 1 is fitted onto the top of the gypsum board 5, the leak-proof mesh 20 fits snugly against the top wall of the outer cladding panel 1. Multiple equally spaced V-shaped holes 4 are provided at both ends of the outer cladding panel 1, and the V-shaped holes 4 communicate with the V-shaped grooves 6.

[0036] The inner lining board 8 is fixedly installed at the bottom of the gypsum board 5, and multiple waterproof membranes 9 are embedded in the inner lining board 8 at equal intervals. The multiple waterproof membranes 9 are arranged in the vertical direction.

[0037] In one embodiment, both the hydrophobic groove 3 and the V-shaped groove 6 are coated with a hydrophobic coating, and the length of the waterproof plate 2 is greater than the length of the outer wrapping plate 1.

[0038] The working principle of this invention is as follows: Figure 5 As shown, the overall design adopts an inclined layout. When water falls on the top of the waterproof board 2, the V-shaped drainage channel 3 quickly gathers the water flow through the hydrophobic coating and discharges from the lower horizontal end of the drainage channel 3 along the inclined direction, preventing water from accumulating and seeping down the top of the waterproof board 2. If a small amount of water seeps into the V-shaped hole 4, it will be smoothly discharged along the V-shaped channel 6 through the connection between the V-shaped hole 4 and the V-shaped channel 6, achieving a dual drainage effect. In daily use, the V-shaped channel 6 also functions as a ventilation hole, allowing air circulation to dry the inside of the V-shaped channel 6 and prevent long-term moisture. When the temperature is low in winter, the heating component is activated to heat the V-shaped channel 6, preventing water from accumulating, freezing, and clogging. The system provides ventilation and anti-icing effects. Meanwhile, the inner lining board 8 at the bottom of the gypsum board 5 achieves local water seepage isolation through a multi-layered waterproof membrane 9, preventing the spread of seepage. The leak-proof mesh 20 at the top of the gypsum board 5 is made of stainless steel, which does not affect air circulation and can firmly hold the peeling paint from the inner wall of the outer cladding board 1. Peeling debris from the outer cladding board 1 caused by temperature changes or long-term use will be intercepted by the leak-proof mesh 20 above the mesh surface, preventing it from falling into the V-shaped groove 6 and V-shaped hole 4 and causing blockage. This combination of multiple protections solves the core problems of icing blockage in the groove, peeling paint from the inner wall of the outer cladding board 1 causing blockage and water seepage in the existing technology.

[0039] The longer length of the waterproof board 2 prevents water from sliding down the drainage groove 3 from directly contacting the gypsum board 5, thus reducing the risk of the gypsum board 5 getting damp from the source.

[0040] like Figures 1-5 As shown, in a preferred embodiment of the present invention, the heating assembly includes a heating cavity 10, an extension cavity 11, and a heating tube 19. A plurality of equally spaced heating cavities 10 are provided in the gypsum board 5. The heating tube 19 is placed in the heating cavity 10. Each heating cavity 10 has an extension cavity 11 in the direction of the V-shaped groove 6. A plurality of equally spaced circular holes 12 are provided at both ends of the outer covering plate 1. The circular holes 12 communicate with the heating cavity 10. A removable sealing plug 14 is installed on each circular hole 12. The sealing plug 14 is used to seal the circular hole 12.

[0041] Specifically, a bracket 15 is fitted onto the outer circular surface of the sealing plug 14. The bracket 15 and the sealing plug 14 are detachably connected. The end of the bracket 15 away from the sealing plug 14 extends to the adjacent V-shaped hole 4. One end of the two symmetrically arranged sealing plugs 14 is inserted with a rod 16. The rod 16 passes through the V-shaped groove 6. A thermometer and hygrometer 17 is fixedly installed on the rod 16. The thermometer and hygrometer 17 is connected to the heating tube 19.

[0042] Specifically, a protrusion (23) is fixedly installed on the outer circular surface of the sealing plug (14), and a groove (24) is provided on the bracket (15). When the bracket (15) is fitted onto the sealing plug (14), the groove (24) and the protrusion (23) engage.

[0043] Specifically, a round block 18 is fixedly installed at one end of the insertion rod 16, and the round block 18 abuts against the bracket 15.

[0044] In practical application, the heating tube 19 can be installed without disassembling the outer wrapping plate 1 and the plasterboard 5. Only the sealing plug 14 needs to be removed to insert the heating tube 19 through the round hole 12. The heating tube 19 is then connected to the external circuit through the thermometer and hygrometer 17 of the insertion rod 16. The temperature and humidity inside the V-shaped groove 6 can be detected in real time through the thermometer and hygrometer 17. When the temperature is below zero or the humidity is consistently high, the heating tube 19 is automatically activated to heat. The heat is accurately transferred to the V-shaped groove 6 through the heating chamber 10 and the extension chamber 11, realizing intelligent temperature control and preventing icing, avoiding manual intervention. At the same time, the round block 18 is located at the higher end of the horizontal height of the insertion rod 16 and is fixed on the bracket 15 by gravity.

[0045] The sealing plug 14 seals the round holes 12 at both ends, which can lock the heat in the heating chamber 10 and the extension chamber 11 to improve the heating efficiency, and can also prevent water from seeping into the round holes 12 through the bracket 15 to ensure circuit safety. In daily use, the plug 16 can be opened to connect the round holes 12 with the heating chamber 10, and the air circulation can accelerate the ventilation at both ends of the outer wrapping plate 1, realizing the switching between heating and ventilation functions. This dual-purpose design improves the practicality of the structure.

[0046] When installing bracket 15, simply align the groove 24 of bracket 15 with the protrusion 23 of sealing plug 14 and push bracket 15 axially to achieve snap-fit ​​fixation. No additional tools are required, improving assembly efficiency. Furthermore, the snap-fit ​​between protrusion 23 and groove 24 prevents bracket 15 from rotating around sealing plug 14 during use, ensuring that the extension end of bracket 15 is always aligned with V-shaped hole 4. When disassembling, simply pull bracket 15 axially in the opposite direction to disengage protrusion 23 from groove 24. The operation is convenient and facilitates subsequent maintenance and replacement.

[0047] like Figures 1-6 As shown, in a preferred embodiment of the present invention, the top of the gypsum board 5 is provided with a plurality of cement grooves 7 arranged at equal intervals, the anti-leakage net 20 covers the cement grooves 7, and the top wall of the outer wrapping board 1 is fixedly installed with a plurality of rough blocks 13 arranged at equal intervals, and the plurality of rough blocks 13 correspond one-to-one with the plurality of cement grooves 7.

[0048] In practical application, this embodiment firstly, when pouring cement into the cement trough 7, the anti-leakage mesh 20 covering the cement trough 7 can restrict the flow of cement, ensuring that the cement is evenly filled in the cement trough 7 and avoiding cement overflow and waste. Secondly, when the outer cladding board 1 is fitted onto the gypsum board 5, the rough block 13 is embedded in the cement trough 7 and comes into contact with the cement and the anti-leakage mesh 20, which greatly increases the connection surface area between the outer cladding board 1 and the gypsum board 5. Compared with the traditional flat connection, the cement bond is stronger and effectively prevents the outer cladding board 1 and the gypsum board 5 from separating after long-term use. In addition, except for the part covering the cement trough 7, the remaining area of ​​the anti-leakage mesh 20 is located above the V-shaped groove 6 and is attached to the top wall of the outer cladding board 1. It can catch the wall plaster that has fallen off due to moisture on the inner wall of the outer cladding board 1 and prevent the wall plaster from falling into the V-shaped groove 6 and blocking the channel.

[0049] like Figures 1-7 As shown, in a preferred embodiment of the present invention, a pressure block 21 is slidably installed at both ends of the top wall of the outer wrapping plate 1. An elastic pad 22 is fixedly installed on the top of the pressure block 21. The elastic pad 22 is connected to the outer wrapping plate 1. When the outer wrapping plate 1 is slidably sleeved on the gypsum board 5, the pressure block 21 abuts against both ends of the leak-proof net 20, and the elastic pad 22 is compressed and deformed.

[0050] In practical application, when the outer cladding 1 slides along the gypsum board 5, the pressure block 21 contacts the leak-proof mesh 20 before the top wall of the outer cladding 1, and gradually presses against both ends of the leak-proof mesh 20 as it slides. The elastic pad 22 is compressed and undergoes elastic deformation. The deformation force keeps the pressure block 21 tightly attached to the leak-proof mesh 20. The leak-proof mesh 20 is fixed in the preset position at the beginning of the fitting, which prevents the leak-proof mesh 20 from shifting due to the sliding of the outer cladding 1. This ensures that the leak-proof mesh 20 can accurately hold the wall plaster afterward, and also prevents the movement of the leak-proof mesh 20 from causing the cement to move out of the cement trough 7.

[0051] Please see Figures 1-7 As shown, the present invention provides a method for using a multi-layer waterproof municipal building structure. Applying this method to a multi-layer waterproof municipal building structure as described in the above embodiment includes the following steps:

[0052] Step S1: Pre-install a waterproof board 2 with a V-shaped cross-section drainage groove 3, a gypsum board 5 with a V-shaped cross-section V-groove 6 and a built-in heating cavity 10, and an inner lining board 8 with a vertically laid waterproof membrane 9.

[0053] Step S2: Place the inner lining board 8 horizontally and secure it with bolts or pour cement. Install the plasterboard 5 on top of the inner lining board 8. Insert the heating pipe 19 into the heating chamber 10 and connect the heating pipe 19 to the external temperature control terminal. Confirm that it can heat the V-shaped groove 6 of the plasterboard 5 normally to avoid freezing in winter.

[0054] Step S3: Place the leak-proof mesh 20 on top of the outer cladding board 1, then place the outer cladding board 1 on top of the gypsum board 5, so that the V-shaped holes 4 at both ends of the outer cladding board 1 correspond one-to-one with the V-shaped grooves 6 on the top of the gypsum board 5, and then pour waterproof mortar to fill the joint gap between the outer cladding board 1 and the gypsum board 5. After the mortar solidifies to form a sealing layer, it will prevent water seepage.

[0055] Step S4: Set the heating threshold and simulate low temperature test to prevent freezing, water test to drain water, and enable after verification.

[0056] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A multi-layered waterproofed municipal building structure, characterized by, Include: The outer wrap board (1), waterproof board (2) top fixed installation is equipped with, waterproof board (2) top is equipped with multiple equidistantly arranged hydrophobic groove (3), the section of hydrophobic groove (3) is V-shaped, the inner lining board (8) is fixedly installed in the gypsum board (5) bottom, and the inner lining board (8) is embedded with multiple equidistantly arranged waterproof film (9), and multiple waterproof film (9) is arranged along the vertical direction.

2. A multi-layered waterproofed municipal building structure according to claim 1, wherein, The heating assembly includes heating cavity (10), extension cavity (11) and heating pipe (19), the gypsum board (5) is equipped with multiple equidistantly arranged heating cavity (10), the heating pipe (19) is placed in the heating cavity (10), and each heating cavity (10) is equipped with extension cavity (11) towards the direction of V-shaped groove (6), the outer wrap board (1) both ends are equipped with multiple equidistantly arranged circular holes (12), the circular hole (12) is communicated with the heating cavity (10), and the detachable sealing plug (14) is installed on each circular hole (12), and the sealing plug (14) is used to block the circular hole (12).

3. A multi-layered waterproofed municipal building structure according to claim 2, wherein, The sealing plug (14) outer circular surface is sleeved with support (15), the support (15) and sealing plug (14) are detachably connected, the end of support (15) away from sealing plug (14) extends to adjacent V-shaped hole (4), and the one end of two symmetrical sealing plugs (14) is inserted with insertion rod (16), the insertion rod (16) penetrates V-shaped groove (6), and the hygrothermograph (17) is fixedly installed on the insertion rod (16), and the hygrothermograph (17) is connected with heating pipe (19).

4. A multi-layered waterproofed municipal building structure according to claim 3, wherein, The convex block (23) is fixedly installed on the outer circular surface of sealing plug (14), the recess (24) is formed in the support (15), when the support (15) is sleeved on the sealing plug (14), the recess (24) is clamped with convex block (23).

5. A multi-layered waterproofed municipal building structure according to claim 3, wherein, The one end of insertion rod (16) is fixedly installed with round block (18), and the round block (18) is in contact with support (15).

6. A multi-layered waterproofed municipal building structure according to claim 1, wherein, The top end of gypsum board (5) is equipped with multiple equidistantly arranged cement grooves (7), the waterproof net (20) covers cement groove (7), and the outer wrap board (1) top wall is fixedly installed with multiple equidistantly arranged rough blocks (13), and multiple rough blocks (13) correspond to multiple cement grooves (7).

7. A multi-layered waterproofed municipal building structure according to claim 6, wherein, The outer wrapping board (1) is slidably installed with a pressing block (21) at both ends of the top wall, the pressing block (21) is fixedly installed with an elastic pad (22) at the top, the elastic pad (22) is connected with the outer wrapping board (1), when the outer wrapping board (1) is slidably sleeved on the gypsum board (5), the pressing block (21) abuts against both ends of the leakage-proof net (20), and the elastic pad (22) is compressed and deformed.

8. A method of using a multi-layered waterproofing municipal building structure, characterized by, The method is applied to the multi-layer waterproof municipal building structure as claimed in any one of claims 1-7, and the method comprises the following steps: step S1: the waterproof board (2) with a V-shaped cross-section drainage groove (3) in advance, the gypsum board (5) with a V-shaped groove (6) in a V-shaped cross-section and a built-in heating cavity (10), and the lining board (8) embedded with vertically arranged waterproof film (9); step S2: horizontally placing and stabilizing the lining board (8), fixing or pouring cement with bolts, placing the gypsum board (5) on the top of the lining board (8), inserting the heating pipe (19) into the heating cavity (10) and connecting the heating pipe (19) with the external temperature control terminal, confirming that the V-shaped groove (6) of the gypsum board (5) can be normally heated to avoid icing in winter; step S3: sleeving the leakage-proof net (20) on the top of the outer wrapping board (1), then sleeving the outer wrapping board (1) on the top of the gypsum board (5), making the V-shaped holes (4) at both ends of the outer wrapping board (1) correspondingly communicated with the V-shaped grooves (6) on the top of the gypsum board (5), pouring waterproof mortar to fill the joint gaps between the outer wrapping board (1) and the gypsum board (5), and preventing water seepage after the mortar solidifies to form a sealing layer; step S4: setting a heating threshold and simulating low-temperature test to prevent icing, pouring water to test drainage, and enabling after no error is found.

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