A wall heat preservation construction structure for a building renovation project

Abstract

The utility model discloses a kind of existing building reconstruction project wall inner thermal insulation construction structures, it is characterized in that, including interface mortar, screed, aerogel insulation board and trowelling layer sequentially arranged in the inner side of outer wall from inside to outside, the aerogel insulation board is bonded on screed by bonding mortar, and is fixed with outer wall by non-hammering type anchor bolt, the non-hammering type anchor bolt is set in aerogel insulation board corner point position;Non-hammering type anchor bolt is screwed into outer wall inside;The board joint of the aerogel insulation board is filled with heat insulation paint.The present application is set in the inner side of outer wall, and the original building outer wall thermal insulation performance is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of building renovation, and in particular to a construction structure for internal wall insulation in existing building renovation projects. Background Technology

[0002] Masonry exterior walls are a crucial structural element of buildings, bearing the brunt of natural disasters such as earthquakes and external loads. Furthermore, they are a significant factor influencing a building's energy efficiency. For older buildings, masonry exterior walls have a high thermal conductivity; without insulation, a large amount of heat will dissipate from the building's interior, leading to energy waste.

[0003] Existing solutions typically involve installing insulation boards on the exterior of the building walls, with a decorative surface layer applied to the outside. This is currently the most common method for exterior wall insulation renovation. However, for some special projects, it is not feasible or possible to install insulation on the exterior of the building walls. If the insulation boards are installed indoors, they will occupy indoor space and affect the size of the usable indoor space. To address these issues, this application provides a construction structure for internal wall insulation in existing building renovation projects. Utility Model Content

[0004] To address the aforementioned issues, this utility model provides a construction structure for internal wall insulation in existing building renovation projects.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This utility model discloses a construction structure for internal wall insulation in existing building renovation projects, comprising, from the inside out, interface mortar, leveling layer, aerogel insulation board, and finishing layer arranged sequentially on the inner side of the exterior wall. The aerogel insulation board is bonded to the leveling layer with adhesive mortar and fixed to the exterior wall with non-impact anchors. The non-impact anchors are threaded into the exterior wall. The joints of the aerogel insulation board are filled with heat-insulating coating.

[0006] This utility model discloses a construction structure for internal wall insulation in existing building renovation projects. Furthermore, the aerogel insulation board is installed with staggered joints.

[0007] This utility model discloses a construction structure for internal wall insulation in existing building renovation projects. Further, the plastering layer includes plastering mortar and alkali-resistant glass fiber mesh. The alkali-resistant glass fiber mesh is laid on the aerogel insulation board, and the plastering mortar is placed on the outside of the alkali-resistant glass fiber mesh.

[0008] This utility model discloses a construction structure for internal wall insulation in existing building renovation projects. Furthermore, the alkali-resistant glass fiber mesh is wrapped around the end of the aerogel insulation board.

[0009] This utility model discloses a construction structure for internal wall insulation in existing building renovation projects. Furthermore, at the door and window openings, the aerogel insulation board is cut as a whole, and the distance between the joint of the aerogel insulation board and the corner of the door and window opening is ≥150mm.

[0010] This utility model discloses a construction structure for internal wall insulation in existing building renovation projects. Furthermore, the alkali-resistant glass fiber mesh is interlocked and staggered at the internal and external corners.

[0011] This utility model discloses a construction structure for internal wall insulation in existing building renovation projects. Furthermore, the total bonding area of ​​the aerogel insulation board is ≥40, and it is fully bonded at the internal and external corners and around the door and window openings.

[0012] This utility model discloses a construction structure for internal wall insulation in existing building renovation projects, wherein the thickness of the leveling layer is ≥12mm.

[0013] This utility model discloses a construction structure for internal wall insulation in existing building renovation projects. Furthermore, the overlap width of the alkali-resistant glass fiber mesh is ≥100mm.

[0014] Compared with the prior art, this utility model has the following advantages: 1. Specialized base treatment system for masonry structures: The innovative combination of interface mortar and cement mortar leveling process is standardized and applied to the treatment of the insulation base layer in existing masonry structures. This enhances the interlayer adhesion, prevents hollowing and falling off, and is the foundation for ensuring system safety. It solves the common problem of reliable connection between old walls and new insulation layers, forming a specialized technology with strong targeting and high reliability. 2. "Refined Anchoring Composite Fixing" Technology for Aerogel Insulation Boards: This technology innovatively and systematically defines the fixing method for aerogel boards. By using aerogel insulation boards to insulate the indoor side, the thickness of the boards is much smaller than that of commonly used insulation board structures. Furthermore, a special fixing method is used to protect the brittle aerogel insulation boards, preventing them from being damaged. This reduces the space occupied by the insulation structure, achieving complete installation of the boards and maintaining their excellent insulation performance. 3. Thermal bridge blocking technology for panel joints based on thermal insulation coating: Based on the traditional internal insulation construction method, this paper innovatively proposes to fill panel joints no larger than 2mm with thermal insulation coating. This approach effectively blocks the linear thermal bridges formed through the panel joints, improves the overall performance and energy efficiency of the insulation system, and is an important innovation in the detailed structure. 4. Integrated anti-crack and anti-thermal bridge joint construction technology: The system integrates and optimizes multiple construction measures such as "whole panel cutting for door and window openings", "interlocking of external corners", and "over-wrapping of terminal parts", and deeply integrates them with the installation process of aerogel panels to form a complete and efficient anti-crack and anti-thermal bridge joint treatment technology system, which significantly improves the construction quality and long-term performance of the internal insulation system in complex parts.

[0015] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure label: 1. Exterior wall; 2. Interface mortar; 3. Leveling layer; 4. Aerogel insulation board; 5. Adhesive mortar; 6. Non-impact anchors; 7. Plastering mortar; 8. Alkali-resistant fiberglass mesh; 9. Primer; 10. Interior wall coating. Detailed Implementation

[0018] like Figure 1 As shown, this utility model discloses a construction structure for internal wall insulation in existing building renovation projects. It includes, from the inside out, an interface mortar 2, a leveling layer 3, an aerogel insulation board 4, and a finishing layer, sequentially arranged on the inner side of the outer wall 1. The interface mortar 2, installed on the inner side of the outer wall 1, enhances interlayer adhesion, prevents hollowing and detachment, and is fundamental to ensuring system safety. The leveling layer 3 is made of cement mortar with a thickness ≥12mm and a bonding strength ≥0.3MPa, providing a solid and flat base for the subsequent aerogel insulation board 4.

[0019] Due to the high brittleness of the aerogel insulation board 4, the use of impact drills and electric hammers is strictly prohibited during installation. Therefore, a composite fixing system with bonding as the main method and anchoring as a supplement is adopted. The aerogel insulation board 4 is pasted onto the leveling layer 3 using bonding mortar 5. The aerogel insulation board 4 is pasted with staggered joints, with a staggered joint of 1 / 2 board length and a total pasted area of ​​≥40%. It is fixed to the outer wall 1 by non-impact anchors 6. The non-impact anchors 6 are screw components with enlarged ends, which are set at the corners of the aerogel insulation board 4 and screwed into the outer wall 1 by threads. The end of the non-impact anchor 6 presses against the outside of the aerogel insulation board 4 to avoid damage to the aerogel insulation board 4 during anchoring. This application uses aerogel insulation board 4 to insulate the indoor side. Its thickness is much smaller than that of commonly used insulation board structures. A special fixing method is used to protect the brittle aerogel insulation board 4, preventing it from being damaged. This reduces the space occupied by the insulation structure, and achieves complete installation of the board while maintaining its excellent insulation performance.

[0020] In addition, the seams of the aerogel insulation board 4 are filled with heat-insulating coating to treat thermal bridges and further improve the insulation performance.

[0021] The finishing layer includes finishing mortar 7 and alkali-resistant fiberglass mesh 8. The alkali-resistant fiberglass mesh 8 is laid on the aerogel insulation board 4 and fixed by non-impact anchors 6. The finishing mortar 7 is applied to the outside of the alkali-resistant fiberglass mesh 8. The alkali-resistant fiberglass mesh 8 is folded over to the end of the aerogel insulation board 4. The overlap width of the alkali-resistant fiberglass mesh 8 is ≥100mm. The alkali-resistant fiberglass mesh 8 is interlocked at the inside and outside corners, which can effectively resist the risk of cracking caused by structural deformation and stress concentration.

[0022] At door and window openings, the aerogel insulation board 4 is cut as a whole, and the seam of the aerogel insulation board 4 is ≥150mm away from the corner of the door and window opening to enhance the crack prevention measures at the door and window openings. The aerogel insulation board 4 is fully adhered to the inside and outside corners and around the door and window openings.

[0023] The plastering mortar 7 is covered with a primer 9 and an interior wall paint 10.

[0024] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A construction structure for internal wall insulation in existing building renovation projects, characterized in that, The components include, from the inside out, interface mortar (2), leveling layer (3), aerogel insulation board (4) and plastering layer, which are arranged sequentially on the inner side of the exterior wall (1). The aerogel insulation board (4) is bonded to the leveling layer (3) by bonding mortar (5) and fixed to the exterior wall (1) by non-knock anchors (6). The non-knock anchors (6) are set at the corner of the aerogel insulation board (4). The non-knock anchors (6) are screwed into the exterior wall (1).

2. The internal wall insulation construction structure for existing building renovation projects according to claim 1, characterized in that, The aerogel insulation board (4) is installed with staggered joints.

3. The internal wall insulation construction structure for existing building renovation projects according to claim 1, characterized in that, The finishing layer includes finishing mortar (7) and alkali-resistant glass fiber mesh (8). The alkali-resistant glass fiber mesh (8) is laid on the aerogel insulation board (4), and the finishing mortar (7) is placed on the outside of the alkali-resistant glass fiber mesh (8).

4. The internal wall insulation construction structure for existing building renovation projects according to claim 3, characterized in that, The alkali-resistant glass fiber mesh (8) is wrapped around the end of the aerogel insulation board (4).

5. The internal wall insulation construction structure for existing building renovation projects according to claim 1, characterized in that, At the door and window openings, the aerogel insulation board (4) is cut as a whole board, and the seam of the aerogel insulation board (4) is ≥150mm away from the corner of the door and window opening.

6. The internal wall insulation construction structure for existing building renovation projects according to claim 3, characterized in that, The alkali-resistant glass fiber mesh (8) is interlocked at the inside and outside corners.

7. The internal wall insulation construction structure for existing building renovation projects according to claim 1, characterized in that, The total bonding area of ​​the aerogel insulation board (4) is ≥40, and it is fully bonded at the inside and outside corners and around the door and window openings.

8. The internal wall insulation construction structure for existing building renovation projects according to claim 1, characterized in that, The thickness of the leveling layer (3) is ≥12mm.

9. The internal wall insulation construction structure for existing building renovation projects according to claim 3, characterized in that, The overlap width of the alkali-resistant glass fiber mesh (8) is ≥100mm.

10. The internal wall insulation construction structure for existing building renovation projects according to claim 1, characterized in that, The seams of the aerogel insulation board (4) are filled with heat-insulating coating.

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