Lap joint tongue-and-groove laminated composite insulation board and external wall insulation construction method
Through the design of overlapping tongue-and-groove laminated composite insulation boards, the problems of cold bridges and poor construction accuracy in the construction of exterior wall insulation boards were solved, and efficient insulation performance and construction accuracy were improved. At the same time, the phenomenon of workers being lazy was avoided, and the anti-seepage performance and appearance quality were enhanced.
Patent Information
- Application Number
- CN202510906101.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-02
- Publication Date
- 2025-10-17
AI Technical Summary
The existing exterior wall insulation board construction has problems such as many cold bridges, poor construction accuracy, and workers being lazy and pasting two layers of fiberglass mesh.
The overlapping tongue-and-groove laminated composite insulation board is adopted. The graphite-modified molded polystyrene foam plastic board and the thermosetting composite polystyrene foam insulation board are staggered and bonded along the diagonal direction to form a tongue-and-groove structure. The first fiberglass mesh is prefabricated in the factory, and the paving plan is planned using professional scanning equipment and BIM software to ensure construction accuracy.
Effectively reduce cold bridges, improve thermal insulation performance and construction accuracy, avoid workers' laziness, enhance anti-seepage performance and integrity, and ensure the thermal insulation effect and appearance quality at the corners.
Smart Images
Figure CN120797914A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of building thermal insulation, and particularly relates to a lap joint rebate lamination composite thermal insulation board and an external wall thermal insulation construction method. BACKGROUND
[0002] In the modern construction industry, with the increasing requirements of people on building energy saving, environmental protection and living comfort, the external wall thermal insulation system has become a key link in building design and construction. Traditional external wall thermal insulation materials, such as single polystyrene board, have certain thermal insulation performance, but have low strength, and are prone to cracking and falling off in actual use, which seriously affects the appearance and safety of buildings. Although rock wool board has good fireproof performance, it performs poorly in thermal insulation, and has certain influence on the environment and the health of construction personnel during construction. At the same time, the global building energy saving standards are becoming increasingly stringent, and various countries have introduced relevant policies and regulations, requiring new buildings and existing building reconstruction to meet higher energy saving indicators, which makes the market urgently need an external wall thermal insulation material with excellent comprehensive performance. The external wall composite thermal insulation board emerges as the times require, which attempts to make up for the defects of traditional materials by compounding materials with different functions, meets the urgent needs of the building market for high-efficiency thermal insulation, high safety and longer service life, and becomes an important direction to promote the development of building energy saving technology.
[0003] Most of the existing external wall thermal insulation boards are single material board structures used in external wall thermal insulation systems, which can achieve thermal insulation effect when laid on the external wall. However, there are the following defects: (1) In the external wall thermal insulation construction, the thermal insulation board is directly laid on the external wall after positioning by drawing lines on the wall surface. However, in actual laying, workers directly measure and draw lines on the wall surface, which leads to deviation in positioning and causes inaccurate construction position of the thermal insulation board; (2) The four edges of the thermal insulation board are flush, and the butt joint between the boards is flush when pasted on the wall, forming a "straight joint" and "through joint", which produces a large amount of "cold bridge" and has poor thermal insulation effect; (3) In the construction process of the existing wall board, two layers of glass fiber mesh need to be pasted on the wall board on site, and the two layers of glass fiber mesh need to be constructed separately. However, in actual construction, workers often cheat by pasting the two layers together. Therefore, we propose a lap joint rebate lamination composite thermal insulation board and an external wall thermal insulation construction method. SUMMARY
[0004] The present application aims to provide a lap joint rebate lamination composite thermal insulation board and an external wall thermal insulation construction method to solve the problems of "cold bridge" and poor thermal insulation performance, poor construction precision, and cheating by pasting two layers of glass fiber mesh together during construction.
[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a lapped tongue-and-groove laminated composite insulation board, comprising a tongue-and-groove insulation board body, wherein the tongue-and-groove insulation board body is composed of a graphite-modified molded polystyrene foam plastic board, a thermosetting composite polystyrene foam insulation board, and a first glass fiber mesh;
[0006] The first glass fiber mesh and the graphite modified molded polystyrene foam plastic board are respectively arranged on both side surfaces of the thermosetting composite polystyrene foam insulation board.
[0007] Preferably, the first glass fiber mesh and the thermosetting plate are bonded with a two-component polyurethane adhesive through a "two-dimensional glue spraying" device, and 10 cm is reserved at the tongue and groove end, and the plates are stacked and cold-pressed into an integrated shape using a gravity press.
[0008] Preferably, the graphite modified molded polystyrene foam plastic board and the thermosetting composite polystyrene foam insulation board are staggered, overlapped and bonded along the diagonal direction, and form a tongue-and-groove structure at the top and bottom and left and right.
[0009] A method for constructing exterior wall insulation using overlapping tongue-and-groove laminated composite insulation boards, comprising any of the overlapping tongue-and-groove laminated composite insulation boards described above, and further comprising the following construction steps:
[0010] Step 1: Fill and clean the surface of the base wall;
[0011] Step 2: Use professional scanning equipment to conduct a comprehensive scan of the base wall to obtain data such as the flatness and verticality of the wall;
[0012] Step 3: Import the base wall data obtained in step 2 into the BIM software to create an accurate base wall model. According to the design requirements, plan the paving plan of the insulation board in the BIM model;
[0013] Step 4: Use the paving plan obtained in step 3 to draw the reference line on the base wall;
[0014] Step 5: Starting from the bottom of the building's exterior wall, paste the tongue-and-groove insulation board body from bottom to top and from left to right, with the vertical board seams staggered. The board seams of two adjacent tongue-and-groove insulation board bodies are tightly spliced without excessive gaps or misalignment. At the inner and outer corners, use special "internal and outer corner transition boards" that are plugged and interlocked row by row to ensure the insulation effect and appearance quality of the inner and outer corners. At the same time, fully adhere the reserved first fiberglass mesh with adhesive mortar. The thickness of the adhesive mortar is controlled at 1mm-2mm to ensure that the mesh is firmly adhered.
[0015] Step 6: After the tongue-and-groove insulation board is pasted and cured for 24 hours, install the anchor bolts according to the design requirements;
[0016] Step seven: smearing the first smearing mortar on the outer layer of the tongue-and-groove thermal insulation board body and pressing the second glass fiber net into the mortar;
[0017] Step eight: after the first smearing mortar is dry, the second mortar is smeared to completely cover the second glass fiber net, so that the second glass fiber net is completely embedded in the mortar;
[0018] Step nine: after the sticking, fixing and smearing of the thermal insulation board are completed and fully cured, the finishing layer construction is carried out.
[0019] Preferably, the interface agent is applied to the base wall in step one to enhance the adhesion of the base wall.
[0020] Preferably, the vertical steel wire or elastic vertical reference line is hung at the outer wall shadow, sun angle and contour profile in step four, and at least two horizontal reference lines are hung per floor.
[0021] Preferably, the tongue-and-groove thermal insulation board body should be avoided from being rained on and immersed in water, and the tongue-and-groove part should be intact without damage in step five, otherwise it is prohibited to be installed on the wall.
[0022] Preferably, the thickness of the mortar is controlled at 2-3 mm in step seven, and the thickness of the smearing mortar is 1-2 mm in step eight.
[0023] Compared with the prior art, the beneficial effects of the present application are:
[0024] (1) By designing the scanning device and BIM software modeling, the base wall is comprehensively scanned by using professional scanning equipment, the flatness and perpendicularity of the wall surface are obtained, and the base wall model is established through BIM software. The laying scheme of the thermal insulation board can be planned in the software according to the design requirements, and the line is laid according to the scheme parameters, so that the construction position of the thermal insulation board is accurate and error-free, and the construction precision of the thermal insulation board is improved.
[0025] (2) The graphite modified molded polystyrene foam plastic board and the thermosetting composite polystyrene foam thermal insulation board are staggered and bonded along the diagonal direction, and the tongue-and-groove structure is formed in the up-down and left-right directions. The traditional flat thermal insulation board is processed into a tongue-and-groove structure with a 5cm reserved gap in the up-down and left-right directions. During the outer wall thermal insulation construction, the boards are overlapped and pasted on the wall through the up-down and left-right tongue-and-groove joints, which reduces the straight seams and through seams between the previous thermal insulation boards, effectively improves the thermal insulation performance, and reduces the risk of cracking of the thermal insulation layer. The boards are connected through the tongue-and-groove joints, and the height direction of the outer wall is high inside and low outside, and the horizontal direction is also a "Z" shaped joint, which forms a physical structure water stop, increases the water seepage path and difficulty, and improves the anti-permeability of the thermal insulation layer.
[0026] (3) through the design of the first glass fiber net and graphite modified molded polystyrene foam board is arranged on both sides of the surface of the thermosetting composite polystyrene foam insulation board 3, the first glass fiber net and thermosetting plate is bonded by two-component polyurethane adhesive through the equipment "two-dimensional glue" and 10cm is reserved in the tongue and groove end, and through the gravity press integrated molding, the first glass fiber net is directly prefabricated on the surface of the insulation board when the insulation board is processed in the factory, which is a shaped product when it reaches the site, which can be directly pasted on the wall, effectively avoiding the laziness of workers during construction. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 is the structure diagram of the tongue and groove insulation board body of the present application;
[0028] Figure 2 is the front view diagram of the tongue and groove insulation board body of the present application;
[0029] Figure 3 is the schematic diagram of the external wall insulation construction of the insulation board of the present application;
[0030] Figure 4 is the local layout schematic diagram of the tongue and groove insulation board body on the wall of the present application;
[0031] In the figure: 1, tongue and groove insulation board body; 2, graphite modified molded polystyrene foam board; 3, thermosetting composite polystyrene foam insulation board; 5, first glass fiber net; 6, base wall; 7, adhesive layer; 8, facing layer; 9, finishing layer; 10, anchor bolt; 11, second glass fiber net. DETAILED DESCRIPTION
[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0033] Embodiment 1
[0034] Please refer to Figures 1 to 4The application provides a technical scheme: a lap joint rebate lamination composite thermal insulation board, which comprises a rebate thermal insulation board body 1, the rebate thermal insulation board body 1 is composed of a graphite modified molded polystyrene foam plastic plate 2, a thermosetting composite polystyrene foam thermal insulation board 3 and a first glass fiber net 5, the first glass fiber net 5 and the graphite modified molded polystyrene foam plastic plate 2 are arranged on the two side surfaces of the thermosetting composite polystyrene foam thermal insulation board 3 respectively, the first glass fiber net 5 and the thermosetting board are bonded by using a two-component polyurethane adhesive through a device 'two-dimensional glue spraying' and are reserved for 10 cm at the rebate end, and are integrally formed by lamination and cold pressing through a gravity press, the first glass fiber net 5 and the graphite modified molded polystyrene foam plastic plate 2 are arranged on the two side surfaces of the thermosetting composite polystyrene foam thermal insulation board 3 respectively, the first glass fiber net 5 and the thermosetting board are bonded by using a two-component polyurethane adhesive through a device 'two-dimensional glue spraying' and are reserved for 10 cm at the rebate end, and are integrally formed by lamination and cold pressing through a gravity press, the first glass fiber net 5 is directly prefabricated on the surface of the thermal insulation board during the processing of the thermal insulation board in the factory, and is a formed product when arriving at the construction site, and can be directly pasted on the wall, so that the laziness of workers during construction is effectively avoided, the graphite modified molded polystyrene foam plastic plate 2 and the thermosetting composite polystyrene foam thermal insulation board 3 are bonded in a staggered lamination mode along the diagonal direction, and form a rebate structure in the up-down and left-right directions, the graphite modified molded polystyrene foam plastic plate 2 and the thermosetting composite polystyrene foam thermal insulation board 3 are bonded in a staggered lamination mode along the diagonal direction, and form a rebate structure in the up-down and left-right directions, the traditional flat rebate thermal insulation board is processed into a rebate with a reserved space of 5 cm in the up-down and left-right directions, and the boards are pasted on the wall in a rebate lapping mode in the up-down and left-right directions during the external wall thermal insulation construction, so that a large number of 'cold bridges' formed by straight seams and transparent seams between the thermal insulation boards in the past are reduced, and the thermal insulation performance is effectively improved; meanwhile, the up-down and left-right engagement has good integrity, and the risk of cracking of the thermal insulation layer is reduced; the boards are spliced through the rebate, are high inside and low outside along the height direction of the external wall, and are also in a 'Z' shaped joint in the horizontal direction, so that a physical structure water stop is formed, the water seepage path and difficulty are increased, and the anti-seepage performance of the thermal insulation layer is improved.
[0035] An external wall thermal insulation construction method of a lap joint rebate lamination composite thermal insulation board, comprising the lap joint rebate lamination composite thermal insulation board and the following steps.
[0036] Step one: the surface of the base wall 6 is subjected to filling treatment and cleaning treatment.
[0037] Step two: the base wall 6 is comprehensively scanned by using a professional scanning device, and the flatness and perpendicularity of the wall surface and other data are obtained.
[0038] Step three: the data of the base wall 6 obtained in step two is imported into BIM software, an accurate base wall 6 model is established, and a thermal insulation board paving scheme is planned in the BIM model according to design requirements.
[0039] Step 4: Use the paving plan obtained in step 3 to draw a reference line on the base wall 6, use the designed scanning equipment and BIM software modeling, use professional scanning equipment to fully scan the base wall 6, obtain the flatness, verticality and other data of the wall surface, and use BIM software to build a base wall 6 model. In the software, according to the design requirements, the paving plan of the insulation board can be planned in the BIM model, and the lines can be drawn and laid according to the plan parameters to ensure that the construction position of the insulation board is accurate and correct, thereby improving the construction accuracy of the insulation board;
[0040] Step 5: Apply adhesive layer 7 on the surface of base wall 6, start from the bottom of the exterior wall, paste tongue and groove insulation board body 1 from bottom to top and from left to right, stagger the vertical board seams, and make sure the board seams of two adjacent tongue and groove insulation board bodies 1 are tightly spliced without excessive gaps or misalignment. At the inner and outer corners, use special "inner and outer corner transition boards" and interlock them row by row to ensure the insulation effect and appearance quality of the inner and outer corners.
[0041] Step 6: After the tongue-and-groove insulation board body 1 is pasted and cured for 24 hours, the anchor bolts 10 are installed according to the design requirements;
[0042] Step 7: Apply a first layer of finishing mortar on the outer surface of the tongue-and-groove insulation board body 1 and press in the second glass fiber mesh 11;
[0043] Step 8: After the first layer of mortar is completely dry, apply the second layer of mortar to completely cover the second glass fiber mesh 11 so that the second glass fiber mesh 11 is completely embedded in the mortar;
[0044] Step 9: After the insulation board is pasted, fixed and the finishing layer 9 is completed and fully cured, the finishing layer 8 is constructed.
[0045] In this embodiment, preferably, in step one, the base wall 6 is coated with an interface agent to enhance the adhesion of the base wall 6. In step four, "vertical steel wires" or vertical reference lines are hung at the inner and outer corners and contours of the exterior wall, and at least two horizontal reference lines are hung on each floor. In step five, the tongue-and-groove insulation board body 1 should be protected from rain and water immersion, and the tongue-and-groove part should be intact and undamaged, otherwise it is prohibited to put it on the wall.
[0046] In this embodiment, preferably, the thickness of the glue in step seven is controlled to be 2 mm, and the thickness of the glue applied in step eight is 1 mm.
[0047] Example 2
[0048] See also Figures 1 to 4The application provides a technical scheme: a lap joint rebate lamination composite thermal insulation board, which comprises a rebate thermal insulation board body 1, the rebate thermal insulation board body 1 is composed of a graphite modified molded polystyrene foam plastic plate 2, a thermosetting composite polystyrene foam thermal insulation board 3 and a first glass fiber net 5, the first glass fiber net 5 and the graphite modified molded polystyrene foam plastic plate 2 are arranged on the two side surfaces of the thermosetting composite polystyrene foam thermal insulation board 3 respectively, the first glass fiber net 5 and the thermosetting board are bonded by using a two-component polyurethane adhesive through a device 'two-dimensional glue spraying' and are reserved for 10 cm at the rebate end, and are integrally formed by lamination and cold pressing through a gravity press, the first glass fiber net 5 and the graphite modified molded polystyrene foam plastic plate 2 are arranged on the two side surfaces of the thermosetting composite polystyrene foam thermal insulation board 3 respectively, the first glass fiber net 5 and the thermosetting board are bonded by using a two-component polyurethane adhesive through a device 'two-dimensional glue spraying' and are reserved for 10 cm at the rebate end, and are integrally formed by lamination and cold pressing through a gravity press, the first glass fiber net 5 is directly prefabricated on the surface of the thermal insulation board during the processing of the thermal insulation board in the factory, and is a formed product when arriving at the construction site, and can be directly pasted on the wall, so that the laziness of workers during construction is effectively avoided, the graphite modified molded polystyrene foam plastic plate 2 and the thermosetting composite polystyrene foam thermal insulation board 3 are bonded in a staggered lamination mode along the diagonal direction, and form a rebate structure in the up-down and left-right directions, the graphite modified molded polystyrene foam plastic plate 2 and the thermosetting composite polystyrene foam thermal insulation board 3 are bonded in a staggered lamination mode along the diagonal direction, and form a rebate structure in the up-down and left-right directions, the traditional flat rebate thermal insulation board is processed into a rebate with a reserved space of 5 cm in the up-down and left-right directions, and the boards are pasted on the wall in a rebate lapping mode in the up-down and left-right directions during the external wall thermal insulation construction, so that a large number of 'cold bridges' formed by straight seams and transparent seams between the thermal insulation boards in the past are reduced, and the thermal insulation performance is effectively improved; meanwhile, the up-down and left-right engagement has good integrity, and the risk of cracking of the thermal insulation layer is reduced; the boards are spliced through the rebate, are high inside and low outside along the height direction of the external wall, and are also in a 'Z' shaped joint in the horizontal direction, so that a physical structure water stop is formed, the water seepage path and difficulty are increased, and the anti-seepage performance of the thermal insulation layer is improved.
[0049] An external wall thermal insulation construction method of a lap joint rebate lamination composite thermal insulation board, comprising the lap joint rebate lamination composite thermal insulation board and the following steps.
[0050] Step one: the surface of the base wall 6 is subjected to filling treatment and cleaning treatment.
[0051] Step two: the base wall 6 is comprehensively scanned by using a professional scanning device, and the flatness and perpendicularity of the wall surface and other data are obtained.
[0052] Step three: the data of the base wall 6 obtained in step two is imported into BIM software, an accurate base wall 6 model is established, and the laying scheme of the thermal insulation board is planned in the BIM model according to the design requirement.
[0053] Step 4: Use the paving plan obtained in step 3 to draw a reference line on the base wall 6, use the designed scanning equipment and BIM software modeling, use professional scanning equipment to fully scan the base wall 6, obtain the flatness, verticality and other data of the wall surface, and use BIM software to build a base wall 6 model. In the software, according to the design requirements, the paving plan of the insulation board can be planned in the BIM model, and the lines can be drawn and laid according to the plan parameters to ensure that the construction position of the insulation board is accurate and correct, thereby improving the construction accuracy of the insulation board;
[0054] Step 5: Apply adhesive layer 7 on the surface of base wall 6, start from the bottom of the exterior wall, paste tongue and groove insulation board body 1 from bottom to top and from left to right, stagger the vertical board seams, and make sure the board seams of two adjacent tongue and groove insulation board bodies 1 are tightly spliced without excessive gaps or misalignment. At the inner and outer corners, use special "inner and outer corner transition boards" and interlock them row by row to ensure the insulation effect and appearance quality of the inner and outer corners.
[0055] Step 6: After the tongue-and-groove insulation board body 1 is pasted and cured for 24 hours, the anchor bolts 10 are installed according to the design requirements;
[0056] Step 7: Apply a first layer of finishing mortar on the outer surface of the tongue-and-groove insulation board body 1 and press in the second glass fiber mesh 11;
[0057] Step 8: After the first layer of mortar is completely dry, apply the second layer of mortar to completely cover the second glass fiber mesh 11 so that the second glass fiber mesh 11 is completely embedded in the mortar;
[0058] Step 9: After the insulation board is pasted, fixed and the finishing layer 9 is completed and fully cured, the finishing layer 8 is constructed.
[0059] In this embodiment, preferably, in step one, the base wall 6 is coated with an interface agent to enhance the adhesion of the base wall 6. In step four, "vertical steel wires" or vertical reference lines are hung at the inner and outer corners and contours of the exterior wall, and at least two horizontal reference lines are hung on each floor. In step five, the tongue-and-groove insulation board body 1 should be protected from rain and water immersion, and the tongue-and-groove part should be intact and undamaged, otherwise it is prohibited to put it on the wall.
[0060] In this embodiment, preferably, the thickness of the glue in step seven is controlled to be 3 mm, and the thickness of the glue applied in step eight is 2 mm.
[0061] The working principle and use process of the present application: the surface of the base wall 6 is filled and cleaned, the base wall 6 is scanned comprehensively by using professional scanning equipment, the data such as flatness and perpendicularity of the wall surface are obtained, the obtained base wall 6 data are imported into BIM software to establish an accurate base wall 6 model, the laying scheme of the insulation board is planned in the BIM model according to the design requirements, the position, size and number of each insulation board are determined, the insulation board construction is accurate, the reference line is hung on the base wall 6 according to the laying scheme obtained from the model, the adhesive layer 7 is applied on the surface of the base wall 6, the tongue and groove insulation board body 1 is pasted from bottom to top and from left to right, the vertical board joints are staggered, the board joints of the adjacent two tongue and groove insulation board bodies 1 are tightly spliced, and there is no large gap or misalignment phenomenon, at the female and male corner parts, special female and male corner transition plates are used for row-by-row insertion and interlocking to ensure the insulation effect and appearance quality of the female and male corners, after the tongue and groove insulation board body 1 is pasted and cured for 24 hours, the anchor bolt 10 is installed according to the design requirements, the first layer of finishing mortar is applied on the outer layer of the tongue and groove insulation board body 1 and the second glass fiber net 11 is pressed, after the first layer of finishing mortar is dry, the second layer of mortar is applied to completely cover the second glass fiber net 11, so that the second glass fiber net 11 is completely embedded in the mortar, after the insulation board pasting, fixing and finishing layer 9 construction are completed and fully cured, the finishing layer 8 construction is carried out.
[0062] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A lapped tongue-and-groove laminated composite insulation board, comprising a tongue-and-groove insulation board body (1), characterized in that: The tongue-and-groove insulation board body (1) is composed of a graphite-modified molded polystyrene foam plastic board (2), a thermosetting composite polystyrene foam insulation board (3), and a first glass fiber mesh (5); The first glass fiber mesh (5) and the graphite modified molded polystyrene foam plastic board (2) are respectively arranged on the two side surfaces of the thermosetting composite polystyrene foam insulation board (3) and are bonded and cold-pressed in one go in the factory.
2. The overlapping tongue-and-groove laminated composite insulation board according to claim 1, characterized in that: The first glass fiber mesh (5) and the thermosetting plate are bonded together using a two-component polyurethane adhesive through a "two-dimensional glue spraying" device, with a 10 cm portion reserved at the tongue-and-groove end, and are then laminated and cold-pressed to form an integrated structure using a gravity press.
3. The overlapping tongue-and-groove laminated composite insulation board according to claim 1, characterized in that: The graphite modified molded polystyrene foam plastic board (2) and the thermosetting composite polystyrene foam insulation board (3) are staggered, stacked, and bonded along a diagonal direction, and form a tongue-and-groove structure in the upper and lower parts and in the left and right parts.
4. A method for exterior wall insulation construction of overlapping tongue-and-groove laminated composite insulation boards, characterized by: The method comprises the overlapping tongue-and-groove laminated composite insulation board according to any one of claims 1 to 3, and further comprises the following construction steps: Step 1: Filling and cleaning the surface of the base wall (6); Step 2: Use professional scanning equipment to perform a comprehensive scan of the base wall (6) to obtain data such as the flatness and verticality of the wall surface; Step 3: Import the base wall (6) data obtained in step 2 into the BIM software, establish an accurate base wall (6) model, and plan the paving plan of the insulation board in the BIM model according to the design requirements; Step 4: Draw a reference line on the base wall (6) according to the paving plan obtained in step 3; Step 5: Apply the adhesive layer (7) on the surface of the base wall (6), and start from the bottom of the exterior wall, paste the tongue-and-groove insulation board body (1) from bottom to top and from left to right, with the vertical board seams staggered. The board seams of two adjacent tongue-and-groove insulation board bodies (1) are tightly spliced, without excessive gaps or misalignment. At the inner and outer corners, use special "inner and outer corner transition boards" and insert and interlock them row by row to ensure the insulation effect and appearance quality of the inner and outer corners. Step 6: After the tongue-and-groove insulation board body (1) is pasted and cured for 24 hours, the anchor bolts (10) are installed according to the design requirements; Step 7: Apply a first layer of finishing mortar on the outer surface of the tongue-and-groove insulation board body (1) and press in a second glass fiber mesh (11); Step 8: After the first layer of mortar is completely dry, apply the second layer of mortar to completely cover the second glass fiber mesh (11) so that the second glass fiber mesh (11) is completely embedded in the mortar; Step 9: After the insulation board is pasted, fixed and the finishing layer (9) is completed and fully cured, the finishing layer (8) is constructed.
5. The exterior wall insulation construction method of the overlapped tongue-and-groove laminated composite insulation board according to claim 4, characterized in that: The base wall (6) of step 1 is coated with an interface agent to enhance the bonding strength of the base wall (6).
6. The exterior wall insulation construction method of the overlapped tongue-and-groove laminated composite insulation board according to claim 4, characterized in that: In step 4, "vertical steel wires" or vertical reference lines are hung at the inner and outer corners and contours of the exterior wall, and at least two horizontal reference lines are hung on each floor.
7. The exterior wall insulation construction method of the overlapped tongue-and-groove laminated composite insulation board according to claim 4, characterized in that: In the step 5, the tongue-and-groove insulation board body (1) should be protected from rain and water, and the tongue-and-groove portion should be intact and without damage, otherwise it is prohibited to put it on the wall.
8. The exterior wall insulation construction method of the overlapped tongue-and-groove laminated composite insulation board according to claim 4, characterized in that: The thickness of the glue in step seven is controlled to be 2mm-3mm, and the thickness of the glue applied in step eight is 1-2mm.