Waterproof breathable polyurethane insulation board
By setting a double-layer protective structure and air duct on the insulation board, the problems of insufficient waterproof breathability and compressive strength are solved, achieving effective waterproof breathability and stability in humid environments, extending service life and reducing construction difficulty.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-03-31
AI Technical Summary
Existing insulation boards have shortcomings in terms of waterproof and breathable performance and compressive strength, resulting in a shorter service life and increased construction difficulty in humid environments.
It adopts a double-layer protective structure, including a first protective layer and a second protective layer, each with a waterproof and breathable membrane and a through hole. Combined with air ducts and ventilation pipes, it forms a gas channel to enhance breathability and waterproofness, and improves stability through semi-circular steel bars and cushioning pads.
It achieves effective waterproofing and breathability in humid environments, extends service life, reduces construction difficulty, and improves the overall strength and stability of the insulation board.
Smart Images

Figure CN224063706U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of insulation board technology, specifically to a waterproof and breathable polyurethane insulation board. Background Technology
[0002] In the field of building insulation materials technology, existing insulation board technologies mainly focus on improving insulation performance. Common materials such as polystyrene insulation boards and polyurethane insulation boards achieve good thermal insulation functions through the low thermal conductivity of the materials themselves. However, these insulation boards have significant shortcomings in terms of waterproof and breathable performance and strength.
[0003] Regarding waterproofing and breathability, most insulation boards tend to absorb water after prolonged contact with moisture, leading to a significant decrease in insulation performance. This severely limits their application in humid environments, such as rainy southern regions and basements. Furthermore, due to poor waterproofing, moisture penetrates the insulation board and is difficult to expel, causing moisture buildup that leads to structural deformation, mold growth, and deterioration. This not only affects the building's aesthetics but also shortens the insulation board's lifespan. The complex maintenance process also causes considerable inconvenience for users.
[0004] In addition, the compressive strength of existing insulation boards is limited. During construction, if subjected to external impacts or compression, the insulation boards are prone to damage and cracking. This not only increases the difficulty and cost of construction, but may also affect the stability and reliability of the entire building insulation system. Utility Model Content
[0005] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by providing a waterproof and breathable polyurethane insulation board.
[0006] The purpose of this utility model is achieved through the following technical solution: a waterproof and breathable polyurethane insulation board, comprising an insulation body, a first protective layer disposed on one side of the insulation body, and a second protective layer disposed on the other side of the insulation body; a first waterproof and breathable membrane is provided on the side of the first protective layer away from the insulation body; a second waterproof and breathable membrane is provided on the side of the second protective layer away from the insulation body.
[0007] The insulation body includes a polyurethane insulation layer; the first protective layer has a plurality of first through holes at corresponding positions on one side of the polyurethane insulation layer; the second protective layer has a plurality of second through holes at corresponding positions on the other side of the polyurethane insulation layer.
[0008] The present invention is further configured such that the plurality of first through holes are arranged in a honeycomb pattern; and the plurality of second through holes are arranged in a honeycomb pattern.
[0009] The present invention is further configured such that deodorizing packets are provided in both the first through hole and the second through hole.
[0010] The present invention is further configured such that: one side of the polyurethane insulation layer is provided with a first air passage communicating with the first through hole along the height direction; the other side of the polyurethane insulation layer is provided with a second air passage communicating with the second through hole along the height direction; and multiple ventilation pipes are provided between the first air passage and the second air passage along the length direction of the polyurethane insulation layer.
[0011] The present invention is further configured such that the vent pipe is provided with multiple vent holes.
[0012] The present invention is further configured such that the thermal insulation body includes a first waterproof layer disposed on top of the polyurethane thermal insulation layer and a second waterproof layer disposed at the bottom of the polyurethane thermal insulation layer.
[0013] The present invention is further configured such that the heat insulation body also includes a first panel layer disposed on top of the first waterproof layer and a second panel layer disposed at the bottom of the second waterproof layer.
[0014] The present invention is further configured such that a first semi-circular steel strip is provided at the top of the polyurethane insulation layer; a second semi-circular steel strip is provided at the bottom of the polyurethane insulation layer; the first semi-circular steel strip and the second semi-circular steel strip are tangential and abut against each other.
[0015] The present invention is further configured such that the top of the first semi-circular steel bar is embedded in the first waterproof layer; and the bottom of the second semi-circular steel bar is embedded in the second waterproof layer.
[0016] The present invention is further configured such that the first waterproof layer is provided with a first buffer pad; the second waterproof layer is provided with a second buffer pad; the top of the first semi-circular steel strip is embedded in the first buffer pad; and the bottom of the second semi-circular steel strip is embedded in the second buffer pad.
[0017] The beneficial effects of this utility model are as follows: The first protective layer and the second protective layer of this utility model are respectively provided with a first through hole and a second through hole at the corresponding positions of the polyurethane insulation layer, and the first through hole and the second through hole are covered with a first waterproof and breathable membrane and a second waterproof and breathable membrane, which can block the intrusion of external moisture, promote the air flow of the polyurethane insulation layer, and expel the moisture inside the polyurethane insulation layer. Attached Figure Description
[0018] The utility model will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present utility model. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.
[0019] Figure 1 This is a cross-sectional view of the present invention;
[0020] Wherein: 11, First protective layer; 12, Second protective layer; 13, First through hole; 14, Second through hole; 21, First waterproof and breathable membrane; 22, Second waterproof and breathable membrane; 3, Polyurethane insulation layer; 31, First air duct; 32, Second air duct; 33, Vent pipe; 34, Vent hole; 41, First waterproof layer; 42, Second waterproof layer; 51, First panel layer; 52, Second panel layer; 61, First semi-circular steel strip; 62, Second semi-circular steel strip; 71, First buffer pad; 72, Second buffer pad. Detailed Implementation
[0021] The present invention will be further described in conjunction with the following embodiments.
[0022] Depend on Figure 1 As can be seen, the waterproof and breathable polyurethane insulation board described in this embodiment includes an insulation body, a first protective layer 11 disposed on one side of the insulation body, and a second protective layer 12 disposed on the other side of the insulation body; the first protective layer 11 is provided with a first waterproof and breathable membrane 21 on the side away from the insulation body; the second protective layer 12 is provided with a second waterproof and breathable membrane 22 on the side away from the insulation body.
[0023] The insulation body includes a polyurethane insulation layer 3; the first protective layer 11 has a plurality of first through holes 13 through a corresponding position on one side of the polyurethane insulation layer 3; the second protective layer 12 has a plurality of second through holes 14 through a corresponding position on the other side of the polyurethane insulation layer 3.
[0024] Specifically, in the waterproof and breathable polyurethane insulation board described in this embodiment, the first protective layer 11 and the second protective layer 12 are respectively provided with a first through hole 13 and a second through hole 14 at corresponding positions of the polyurethane insulation layer 3. The first through hole 13 and the second through hole 14 are covered with a first waterproof and breathable membrane 21 and a second waterproof and breathable membrane 22, which can block the intrusion of external moisture, promote air flow in the polyurethane insulation layer 3, and expel moisture from inside the polyurethane insulation layer 3. In addition, the first protective layer 11 and the second protective layer 12 are only provided with through holes at corresponding positions of the polyurethane insulation layer 3, and the other positions are sealed, which can effectively ensure the overall strength of the insulation board.
[0025] The waterproof and breathable polyurethane insulation board described in this embodiment has multiple first through holes 13 arranged in a honeycomb pattern; multiple second through holes 14 are also arranged in a honeycomb pattern. This arrangement effectively improves the breathability of the polyurethane insulation layer 3.
[0026] In this embodiment, a waterproof and breathable polyurethane insulation board is provided with deodorizing packets inside both the first through hole 13 and the second through hole 14. These deodorizing packets can be activated carbon packets. This arrangement prevents external odors from entering the insulation board.
[0027] In this embodiment, a waterproof and breathable polyurethane insulation board is provided. One side of the polyurethane insulation layer 3 is provided with a first air channel 31 communicating with a first through hole 13 along the height direction; the other side of the polyurethane insulation layer 3 is provided with a second air channel 32 communicating with a second through hole 14 along the height direction; and multiple ventilation pipes 33 are provided between the first air channel 31 and the second air channel 32 along the length direction of the polyurethane insulation layer 3.
[0028] Specifically, in this embodiment, the waterproof and breathable polyurethane insulation board forms a gas channel between the first air channel 31, the vent pipe 33, and the second air channel 32. This, together with the first waterproof and breathable membrane 21 and the second waterproof and breathable membrane 22, allows for ventilation of the polyurethane insulation layer 3, effectively improving the breathability of the polyurethane insulation layer 3.
[0029] The waterproof and breathable polyurethane insulation board described in this embodiment has a ventilation pipe 33 with multiple ventilation holes 34. This design further enhances the overall breathability of the insulation board.
[0030] The waterproof and breathable polyurethane insulation board described in this embodiment further includes a first waterproof layer 41 disposed on top of the polyurethane insulation layer 3 and a second waterproof layer 42 disposed at the bottom of the polyurethane insulation layer 3. This arrangement enhances the overall waterproof performance of the insulation board.
[0031] The waterproof and breathable polyurethane insulation board described in this embodiment further includes a first panel layer 51 disposed on top of the first waterproof layer 41 and a second panel layer 52 disposed at the bottom of the second waterproof layer 42. This arrangement enhances the overall strength of the insulation board.
[0032] In this embodiment, a waterproof and breathable polyurethane insulation board is provided, wherein a first semi-circular steel strip 61 is provided at the top of the polyurethane insulation layer 3; a second semi-circular steel strip 62 is provided at the bottom of the polyurethane insulation layer 3; the first semi-circular steel strip 61 and the second semi-circular steel strip 62 are tangential and abut against each other.
[0033] Specifically, in this embodiment, by setting a first semicircular steel strip 61 and a second semicircular steel strip 62, the first semicircular steel strip 61 and the second semicircular steel strip 62 can provide support for the insulation board. In addition, the structure of semicircles tangent to each other can reduce shock, which can further improve the overall stability of the insulation board.
[0034] In this embodiment, a waterproof and breathable polyurethane insulation board is provided, wherein the top of the first semi-circular steel strip 61 is embedded in the first waterproof layer 41, and the bottom of the second semi-circular steel strip 62 is embedded in the second waterproof layer 42. This arrangement further improves the overall stability of the insulation board.
[0035] This embodiment describes a waterproof and breathable polyurethane insulation board. The first waterproof layer 41 is provided with a first buffer pad 71; the second waterproof layer 42 is provided with a second buffer pad 72; the top of the first semi-circular steel strip 61 is embedded in the first buffer pad 71; and the bottom of the second semi-circular steel strip 62 is embedded in the second buffer pad 72. This arrangement facilitates the absorption of the impact force from the first semi-circular steel strip 61 and the second semi-circular steel strip 62.
[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A waterproof and breathable polyurethane insulation board, characterized by: The heat preservation body comprises a first protective layer (11) arranged on one side of the heat preservation body and a second protective layer (12) arranged on the other side of the heat preservation body; the first protective layer (11) is provided with a first waterproof and breathable film (21) on the side away from the heat preservation body; the second protective layer (12) is provided with a second waterproof and breathable film (22) on the side away from the heat preservation body. The heat preservation body comprises a polyurethane heat preservation layer (3); the first protective layer (11) is provided with a plurality of first through holes (13) at the corresponding positions on one side of the polyurethane heat preservation layer (3); and the second protective layer (12) is provided with a plurality of second through holes (14) at the corresponding positions on the other side of the polyurethane heat preservation layer (3).
2. The waterproof and breathable polyurethane insulation board according to claim 1, characterized in that: The plurality of first through holes (13) are arranged in a honeycomb shape; and the plurality of second through holes (14) are arranged in a honeycomb shape.
3. The waterproof and breathable polyurethane insulation board according to claim 1, characterized in that: Deodorizing bags are arranged in the first through holes (13) and the second through holes (14).
4. The waterproof and breathable polyurethane insulation board according to claim 1, characterized in that: A first air duct (31) is arranged on one side of the polyurethane heat preservation layer (3) along the height direction and communicates with the first through holes (13); a second air duct (32) is arranged on the other side of the polyurethane heat preservation layer (3) along the height direction and communicates with the second through holes (14); and a plurality of air pipes (33) are arranged along the length direction of the polyurethane heat preservation layer (3) between the first air duct (31) and the second air duct (32).
5. The waterproof and breathable polyurethane insulation board according to claim 4, characterized in that: The air pipes (33) are provided with a plurality of air holes (34).
6. The waterproof and breathable polyurethane insulation board according to claim 1, characterized in that: The heat preservation body further comprises a first waterproof layer (41) arranged on the top of the polyurethane heat preservation layer (3) and a second waterproof layer (42) arranged on the bottom of the polyurethane heat preservation layer (3).
7. The waterproof and breathable polyurethane insulation board according to claim 6, characterized in that: The heat preservation body further comprises a first panel layer (51) arranged on the top of the first waterproof layer (41) and a second panel layer (52) arranged on the bottom of the second waterproof layer (42).
8. The waterproof and breathable polyurethane insulation board according to claim 6, characterized in that: A first semicircular steel strip (61) is arranged on the top of the polyurethane heat preservation layer (3); a second semicircular steel strip (62) is arranged on the bottom of the polyurethane heat preservation layer (3); and the first semicircular steel strip (61) and the second semicircular steel strip (62) are tangent to each other.
9. The waterproof and breathable polyurethane insulation board according to claim 8, characterized in that: The top of the first semicircular steel strip (61) is embedded in the first waterproof layer (41); and the bottom of the second semicircular steel strip (62) is embedded in the second waterproof layer (42).
10. The waterproof and breathable polyurethane insulation board according to claim 9, characterized in that: The first waterproof layer (41) is provided with a first cushion pad (71); the second waterproof layer (42) is provided with a second cushion pad (72); the top of the first semicircular steel strip (61) is embedded in the first cushion pad (71); and the bottom of the second semicircular steel strip (62) is embedded in the second cushion pad (72).