Glass wool board with high waterproofness and air permeability
By introducing a combination structure of waterproof layer, honeycomb layer and moisture-proof layer into the glass wool board, the problem of traditional glass wool board being prone to moisture in humid environments is solved, achieving high waterproof and breathable properties as well as good thermal insulation performance.
Patent Information
- Application Number
- CN202520222278.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Traditional glass wool boards are prone to moisture absorption in humid environments, which leads to decreased thermal insulation performance and structural damage. In addition, poor air circulation prevents effective moisture removal.
It adopts a combination structure of waterproof layer, honeycomb layer and moisture-proof layer. The waterproof layer prevents liquid water from penetrating, the honeycomb layer provides air circulation, the moisture-proof layer absorbs moisture through moisture-absorbing cotton strips, and the breathable layer promotes water vapor exchange.
This achieves high waterproof and breathable properties for glass wool boards, keeps the interior dry, improves compressive strength and deformation resistance, and extends service life.
Smart Images

Figure CN223867442U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of glass wool board, specifically relating to a glass wool board with high waterproof and breathable properties. Background Technology
[0002] In the development of modern architecture, industry and many other fields, thermal insulation materials play a crucial role. Glass wool boards, as a widely used insulation material, have long been favored for their excellent thermal insulation performance. Traditional glass wool boards are usually made of glass fiber through a special process, which has a certain thermal insulation capacity and can effectively block the transfer of heat. They are widely used in many scenarios such as building exterior walls, roofs, and pipe insulation.
[0003] While existing ordinary glass wool boards can withstand general damp environments, moisture can easily seep into the glass wool under conditions such as prolonged rain, high humidity, or frequent contact with liquid water. Once the glass wool absorbs water and becomes damp, it not only increases its own weight, placing an extra burden on installation and structural load-bearing, but more seriously, its thermal insulation performance will be greatly reduced. In some moisture-dissipating environments, such as buildings with moisture sources inside, or areas with frequent climate changes and large temperature differences between day and night, condensation will also occur because the air circulation inside the glass wool boards is poor and moisture cannot be discharged in time, which will damage the insulation layer and affect the overall thermal insulation effect. Utility Model Content
[0004] The purpose of this invention is to provide a glass wool board with high waterproof and breathable properties to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a highly waterproof and breathable glass wool board, comprising:
[0006] A glass wool board, comprising a waterproof layer and a glass wool core layer, wherein the glass wool core layer is located at the bottom of the waterproof layer and a honeycomb layer is located at the top of the glass wool core layer to enhance the compressive strength and deformation resistance of the glass wool board; a moisture-proof layer is provided between the honeycomb layer and the glass wool core layer to prevent moisture from entering the interior of the glass wool board; the moisture-proof layer comprises transverse moisture-absorbing strips and longitudinal moisture-absorbing strips, wherein several sets of transverse and longitudinal moisture-absorbing strips are provided, and the several sets of transverse and longitudinal moisture-absorbing strips are cross-woven into a grid.
[0007] Preferably, the bottom of the glass wool core layer is provided with a breathable layer.
[0008] Preferably, the bottom of the breathable layer is provided with a reinforcing layer.
[0009] Preferably, the waterproof layer, glass wool core layer, honeycomb layer, moisture-proof layer, breathable layer, and reinforcing layer are bonded together with epoxy resin adhesive.
[0010] Preferably, the surface of the waterproof layer is coated with an organosilicon coating.
[0011] Preferably, the reinforcing layer is a glass fiber mesh.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] (1) The waterproof layer, as the first line of defense, can effectively block the intrusion of external liquid water. The silicone coating on its surface further enhances the waterproof effect, greatly improves the hydrophobicity of the glass wool board surface, and prevents water penetration. The moisture-proof layer at the bottom of the honeycomb layer is composed of transverse and longitudinal moisture-absorbing cotton strips woven into a grid. It can absorb the moisture inside the glass wool board and prevent the glass wool board from getting damp. By locking the moisture in the moisture-absorbing cotton strips, the performance of the glass wool core layer can be protected from being affected and the service life of the glass wool board can be extended.
[0014] (2) The air flow cavity in the honeycomb layer provides a passage for air circulation, which helps the air circulation inside the glass wool board. This honeycomb structure allows moisture to move smoothly inside the glass wool board and is easily absorbed by the moisture-absorbing cotton strips. The honeycomb layer has excellent mechanical properties. Its unique structure can significantly improve the compressive strength and deformation resistance of the glass wool board without significantly increasing the weight. The breathable layer at the bottom of the moisture-absorbing cotton strip can promote water vapor exchange. The setting of the breathable layer allows water vapor to pass through, which further promotes the water vapor exchange inside and outside the glass wool board. The breathable layer can timely discharge the moisture generated inside the glass wool board to the external environment. Together with the honeycomb layer, it achieves good breathability and keeps the inside of the glass wool board dry and comfortable. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a cross-sectional view of the present invention;
[0017] Figure 3 This is a schematic diagram of the structure of the present invention, in which transverse and longitudinal moisture-absorbing cotton strips are woven into a mesh.
[0018] Figure 4 This is a schematic diagram of the honeycomb structure of the honeycomb layer of this utility model.
[0019] In the diagram: 1. Glass wool board; 2. Waterproof layer; 3. Glass wool core layer; 4. Honeycomb layer; 5. Moisture-proof layer; 6. Horizontal absorbent strips; 7. Vertical absorbent strips; 8. Breathable layer; 9. Reinforcing layer; 10. Silicone coating; 11. Airflow cavity. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] This utility model provides, for example Figure 1-4 The illustrated high waterproof and breathable glass wool board includes:
[0022] Glass wool board 1, the glass wool board 1 includes a waterproof layer 2 and a glass wool core layer 3. The glass wool core layer 3 is located at the bottom of the waterproof layer 2 and the top of the glass wool core layer 3 is provided with a honeycomb layer 4 for improving the compressive strength and deformation resistance of the glass wool board 1. A moisture-proof layer 5 is provided between the honeycomb layer 4 and the glass wool core layer 3 to prevent moisture from entering the interior of the glass wool board 1. The moisture-proof layer 5 includes transverse moisture-absorbing cotton strips 6 and longitudinal moisture-absorbing cotton strips 7. Several sets of transverse moisture-absorbing cotton strips 6 and longitudinal moisture-absorbing cotton strips 7 are provided, and the several sets of transverse moisture-absorbing cotton strips 6 and longitudinal moisture-absorbing cotton strips 7 are cross-woven into a grid.
[0023] The bottom of the glass wool core layer 3 is provided with a breathable layer 8.
[0024] The waterproof layer 2, glass wool core layer 3, honeycomb layer 4, moisture-proof layer 5, breathable layer 8, and reinforcing layer 9 are bonded together with epoxy resin adhesive. Epoxy resin adhesive has excellent adhesion and can form a strong bond between layers of different materials, tightly binding each layer together. This ensures that the glass wool board 1 will not easily separate or shift when subjected to external forces, thus ensuring the integrity and stability of the entire structure.
[0025] The surface of the waterproof layer 2 is coated with an organosilicon coating 10, which can prevent moisture from adhering to and penetrating the surface of the glass wool board 1.
[0026] The bottom of the breathable layer 8 is provided with a reinforcing layer 9, which is a glass fiber mesh. The glass fiber mesh of the reinforcing layer 9 can provide additional tensile strength to the glass wool board 1. When subjected to tensile or bending forces, the glass fiber mesh can withstand the main tensile force and prevent the glass wool board 1 from cracking or delaminating.
[0027] When liquid water comes into contact with the glass wool board 1, the waterproof layer 2 plays its role first. Its dense structure prevents water from penetrating directly. The waterproof layer 2 is made of SBS modified bitumen waterproof membrane, which forms a waterproof barrier with its good waterproof performance. At the same time, the surface silicone coating 10 uses its low surface energy characteristics to make water droplets form water beads on the surface and slide off, further preventing water from adhering to and penetrating the surface.
[0028] If moisture and a small amount of water vapor in the glass wool board 1 break through the waterproof layer 2, the moisture-proof layer 5, composed of the transverse moisture-absorbing cotton strips 6 and the longitudinal moisture-absorbing cotton strips 7, will absorb this water vapor. The moisture-absorbing cotton strips will adsorb and store the water vapor through capillary action, preventing the water vapor from continuing to diffuse into the glass wool core layer 3, thereby maintaining the overall waterproof performance of the glass wool board 1.
[0029] The air flow cavity 11 in the honeycomb layer 4 provides a channel for air circulation, allowing air to flow freely inside the glass wool board 1. The air flow cavity 11 forms a three-dimensional air network. When there is moisture inside the glass wool board 1, the air flow can drive the moisture to move towards the moisture-proof layer 5 in the channel. The breathable layer 8 allows water vapor to exchange with the external environment. The moisture absorbed by the moisture-proof layer 5 and the moisture inside the glass wool board 1 are discharged to the outside through the breathable layer 8 under the action of air flow. At the same time, fresh air from the outside can also enter the glass wool board 1 through the breathable layer 8, maintaining air circulation and ensuring that the glass wool board 1 and the interior of the moisture-proof layer 5 remain dry and breathable.
[0030] The hexagonal structure of the honeycomb layer 4 can evenly distribute the external pressure to the entire structure. When the glass wool board 1 is under pressure, each unit of the honeycomb layer 4 bears the load together, avoiding deformation or damage caused by local stress concentration and maintaining the integrity of the structure.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A glass wool board with high waterproof and breathable properties, characterized in that, include: Glass wool board (1), the glass wool board (1) includes a waterproof layer (2) and a glass wool core layer (3). The glass wool core layer (3) is located at the bottom of the waterproof layer (2) and the top of the glass wool core layer (3) is provided with a honeycomb layer (4) for improving the compressive strength and deformation resistance of the glass wool board (1). A moisture-proof layer (5) is provided between the honeycomb layer (4) and the glass wool core layer (3) to prevent the inside of the glass wool board (1) from getting damp. The moisture-proof layer (5) includes transverse moisture-absorbing cotton strips (6) and longitudinal moisture-absorbing cotton strips (7). The transverse moisture-absorbing cotton strips (6) and longitudinal moisture-absorbing cotton strips (7) are provided in several groups, and the several groups of transverse moisture-absorbing cotton strips (6) and longitudinal moisture-absorbing cotton strips (7) are cross-woven into a grid.
2. The glass wool board with high waterproof and breathable properties according to claim 1, characterized in that: The bottom of the glass wool core layer (3) is provided with a breathable layer (8).
3. The glass wool board with high waterproof and breathable properties according to claim 2, characterized in that: The bottom of the breathable layer (8) is provided with a reinforcing layer (9).
4. The glass wool board with high waterproof and breathable properties according to claim 3, characterized in that: The waterproof layer (2), glass wool core layer (3), honeycomb layer (4), moisture-proof layer (5), breathable layer (8), and reinforcing layer (9) are bonded together with epoxy resin adhesive.
5. The glass wool board with high waterproof and breathable properties according to claim 1, characterized in that: The surface of the waterproof layer (2) is coated with an organosilicon coating (10).
6. The glass wool board with high waterproof and breathable properties according to claim 3, characterized in that: The reinforcing layer (9) is a glass fiber mesh.