Waterproof structure for overflow port of heat-insulating outer wall roof
By setting up a slope-outside embedded casing at the overflow port position and filling it with polyurethane foam glue around it, the problem of the overflow port waterproof layer is easily permeated, achieving more efficient waterproofing and thermal insulation effects.
Patent Information
- Application Number
- CN202420535729.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-03-19
AI Technical Summary
When the insulation layer on the outside of the side wall is constructed, the waterproof layer at the overflow port is easily penetrated by rainwater, causing moisture to the insulation layer and structural walls.
A built-in casing is installed at the overflow port, the casing slopes outward and extends out of the exterior wall insulation layer, the surroundings are filled with polyurethane foam glue, and both ends are sealed with sealing glue.
It effectively prevents rainwater from entering the insulation layer and structural walls through the overflow port, improves the waterproof and thermal insulation performance of the exterior walls, and extends the service life of the building.
Smart Images

Figure CN222632663U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waterproof engineering, in particular to an overflow waterproof structure of a thermal insulation exterior wall roof. Background Art
[0002] my country is a country with a vast territory and abundant rainfall. The climate changes significantly, and the rainfall increases gradually from north to south. The reasonable design of the roof drainage system is very necessary. The roof rainwater drainage system is an important part of the building drainage system and affects the quality of the building. As an important part of the roof rainwater drainage system, the main function of the overflow is to prevent roof leakage caused by excessive water accumulation on the roof. It has the advantages of preventing roof water accumulation, increasing roof life, protecting the house structure, and simple and convenient installation.
[0003] In the prior art, when constructing the insulation layer on the outside of the side wall, the waterproof layer is usually turned over to the middle of the structural wall, that is, the waterproof layer is folded inward along the overflow port and extended to the middle of the wall. When the overflow port overflows, the bonding part between the insulation layer and the structural wall is generally a weak waterproof part, and rainwater can easily penetrate into the insulation layer and the structural wall, and overflow can easily enter the insulation layer and the wall. Utility Model Content
[0004] The purpose of the utility model is to provide a thermal insulation exterior wall roof overflow waterproof structure in order to solve at least one of the above technical problems.
[0005] The utility model provides a thermal insulation external wall roof overflow outlet waterproof structure, comprising an external wall, wherein the external wall is provided with an overflow outlet.
[0006] An embedded sleeve is arranged in the overflow port, and both ends of the embedded sleeve protrude out of the outer wall;
[0007] An exterior wall insulation layer is arranged along both sides of the exterior wall, and the connection between the exterior wall insulation layer and the embedded sleeve is sealed by a sealant.
[0008] Furthermore, a polyurethane foam layer is provided between the embedded sleeve and the overflow port.
[0009] Furthermore, a wall waterproof layer is provided between the exterior wall and the exterior wall insulation layer.
[0010] Furthermore, the wall waterproof layer extends along the connection between the exterior wall and the roof to cover a portion of the roof to form an additional waterproof layer.
[0011] Furthermore, a roof insulation layer is arranged on the top of the roof, and a roof waterproof layer is arranged on the top of the roof insulation layer.
[0012] Furthermore, the embedded sleeve is a PVC sleeve, and the embedded sleeve protrudes 50 mm from the outer wall.
[0013] Furthermore, the overflow outlet is vertically spaced 30 cm from the roof.
[0014] Furthermore, the embedded sleeve slopes toward the outside of the outer wall.
[0015] The utility model arranges a pre-buried sleeve at the overflow port during structural construction. The pre-buried sleeve slopes outward and extends out of the external wall insulation layer. The pre-buried sleeve is densely filled with polyurethane foam glue around and tightly sealed with sealant at both ends to prevent water from flowing out of the overflow port from entering the insulation layer. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the utility model.
[0017] In the figure: 1. exterior wall, 2. overflow port, 3. embedded casing, 4. exterior wall insulation layer, 5. wall waterproof layer, 6. polyurethane foam layer, 7. roof, 8. additional waterproof layer, 9. roof insulation layer, 10. roof waterproof layer, 11. sealant. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] like Figure 1 As shown, according to an embodiment of the utility model, a thermal insulation exterior wall roof overflow waterproof structure includes an exterior wall 1, an overflow 2 is provided on the exterior wall 1, and the overflow 2 is 30 cm away from the roof 7 in a vertical distance;
[0020] An embedded sleeve 3 is arranged in the overflow port 2, and both ends of the embedded sleeve 3 protrude out of the outer wall 1;
[0021] An exterior wall insulation layer 4 is arranged along both sides of the exterior wall 1 , and the connection between the exterior wall insulation layer 4 and the embedded sleeve 3 is sealed by a sealant 11 .
[0022] In this embodiment, when constructing the exterior wall 1, before constructing the exterior wall insulation layer 4, a pre-buried sleeve 3 is arranged in the overflow port 2, and both ends of the pre-buried sleeve 3 protrude from the exterior wall 1. The exterior wall insulation layer 4 is arranged vertically along the exterior wall 1, and the connection between the exterior wall insulation layer 4 and the pre-buried sleeve 3 is sealed by a sealant 11.
[0023] The utility model pre-buries a sleeve at the overflow port position of the thermal insulation exterior wall roof and ensures that the sleeve extends out of the thermal insulation layer, thereby effectively preventing rainwater from seeping in due to the inward turning of the thermal insulation layer of the exterior wall, thereby ensuring the dryness and safety of the thermal insulation layer and the structure wall.
[0024] According to an embodiment of the present utility model, a polyurethane foam layer 6 is provided between the embedded sleeve 3 and the overflow port 2 .
[0025] In this embodiment, a pre-buried sleeve 3 is arranged at the overflow port 2 during structural construction, and the pre-buried sleeve 3 is densely filled with polyurethane foam glue around to form a polyurethane foam layer 6, thereby achieving dense filling of the gap between the pre-buried sleeve 3 and the outer wall 1.
[0026] The utility model improves the thermal insulation performance of the exterior wall by arranging a polyurethane foam layer between the embedded sleeve and the overflow port, effectively preventing rainwater from penetrating into the thermal insulation layer through the gap, thereby further protecting the wall structure from moisture and damage.
[0027] According to an embodiment of the utility model, a wall waterproof layer 5 is provided between the exterior wall 1 and the exterior wall insulation layer 4 .
[0028] In this embodiment, during the structural construction, a waterproof coating is applied on the surface of the exterior wall 1 to form a wall waterproof layer 5, and then the exterior wall insulation layer 4 is constructed.
[0029] The utility model provides a wall waterproof layer between the exterior wall and the exterior wall insulation layer, which not only can enhance the waterproof performance of the exterior wall, but also can maintain the insulation effect of the insulation layer, improve the durability of the exterior wall, and has a significant effect on improving the overall performance and service life of the building.
[0030] According to an embodiment of the present utility model, the wall waterproof layer 5 extends along the connection between the exterior wall 1 and the roof 7 to cover a portion of the roof 7 to form an additional waterproof layer 8 .
[0031] In this embodiment, when performing wall waterproofing construction, the wall waterproofing layer 5 extends along the connection between the exterior wall 1 and the roof 7, and a waterproof additional layer 8 is formed by connecting with the wall waterproofing layer 5 and covering the waterproofing layer part of the roof 7 to strengthen the waterproof ability of the connection between the exterior wall 1 and the roof 7.
[0032] The utility model significantly enhances the waterproof ability of the area by arranging a waterproof additional layer at the connection between the exterior wall and the roof, effectively avoids the problem of rainwater seeping from the connection, and improves the overall waterproof performance of the building exterior wall.
[0033] According to an embodiment of the utility model, a roof insulation layer 9 is arranged on the top of the roof 7 , and a roof waterproof layer 10 is arranged on the top of the roof insulation layer 9 .
[0034] In this embodiment, a waterproof additional layer 8 is arranged outside the roof insulation layer 9, and a roof waterproof layer 10 is arranged outside the waterproof additional layer 8 to effectively prevent rainwater from penetrating into the exterior wall and the roof.
[0035] The utility model arranges a heat preservation layer and a waterproof layer on the roof top, which can significantly improve the heat preservation performance and waterproof performance of the roof and provide better protection for the building.
[0036] According to an implementation mode of the utility model, the embedded sleeve 3 is a PVC sleeve, and the embedded sleeve 3 protrudes from the outer wall by 50 mm.
[0037] In this embodiment, both ends of the embedded sleeve 3 protrude 50 mm from the outer wall 1, which can ensure that the length of the embedded sleeve 3 is not less than the thickness of the wall and that the embedded sleeve 3 does not protrude too much from the wall to affect the aesthetics of the wall.
[0038] The utility model not only ensures that the sleeve length is sufficient to pass through the wall, but also avoids the excessive protrusion of the sleeve affecting the appearance of the wall, effectively prevents the problem of rainwater infiltration caused by the inward turning of the waterproof layer of the outer wall, ensures the dryness and safety of the insulation layer and the structure wall, and at the same time improves the overall thermal insulation performance and service life of the building.
[0039] According to an implementation mode of the utility model, the embedded sleeve 3 slopes toward the outside of the outer wall 1 .
[0040] In this embodiment, the embedded sleeve 3 slopes toward the outside of the outer wall 1, that is, the height of the connecting side of the outer wall 1 and the roof 7 is higher than the other end, which can ensure the smooth discharge of rainwater.
[0041] The embedded sleeve of the utility model is designed to slope toward the outside of the exterior wall, ensuring that the height of the connecting side of the exterior wall and the roof is higher than the other end, effectively preventing rainwater from accumulating in the sleeve and further enhancing the waterproof performance of the exterior wall.
[0042] Working principle of this utility model:
[0043] During construction, an overflow port 2 is reserved at a height of 30 cm from the roof on the outer wall 1, and a pre-buried sleeve 3 is arranged in the overflow port 2. Both ends of the pre-buried sleeve 3 protrude from the outer wall by 50 mm, and the pre-buried sleeve 3 slopes toward the outer side of the outer wall 1. The periphery of the pre-buried sleeve 3 is densely filled with polyurethane foam glue to form a polyurethane foam layer 6;
[0044] The roof insulation layer 9 is constructed, and the wall waterproof layer 5 is constructed. The wall waterproof layer 5 extends along the connection between the external wall 1 and the roof 7, and the waterproof additional layer 8 is formed by connecting with the wall waterproof layer 5 and covering the waterproof layer of the roof 7 to strengthen the waterproof ability of the connection between the external wall 1 and the roof 7;
[0045] The roof waterproof layer 10 and the external wall insulation layer 4 are constructed, and the joints between the external wall insulation layer 4 and the embedded sleeve 3 are tightly sealed with a sealant 11; the roof waterproof layer 10 is superimposed with the waterproof additional layer 8 to further enhance the waterproofness of the building.
[0046] The utility model arranges a pre-buried sleeve at the overflow port during structural construction. The pre-buried sleeve slopes outward and extends out of the external wall insulation layer. The pre-buried sleeve is densely filled with polyurethane foam glue around and tightly sealed with sealant at both ends to prevent water from flowing out of the overflow port from entering the insulation layer.
[0047] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A thermal insulation exterior wall roof overflow outlet waterproof structure, comprising an exterior wall (1), wherein the exterior wall (1) is provided with an overflow outlet (2), characterized in that: A pre-buried sleeve (3) is arranged in the overflow port (2), and both ends of the pre-buried sleeve (3) protrude from the outer wall (1); An external wall insulation layer (4) is arranged along both sides of the external wall (1), and the connection between the external wall insulation layer (4) and the embedded sleeve (3) is sealed by a sealant (11).
2. The overflow waterproof structure of the thermal insulation exterior wall roof according to claim 1, characterized in that: A polyurethane foam layer (6) is provided between the embedded sleeve (3) and the overflow port (2).
3. The overflow waterproof structure of the thermal insulation exterior wall roof according to claim 1, characterized in that: A wall waterproof layer (5) is provided between the exterior wall (1) and the exterior wall insulation layer (4).
4. The overflow waterproof structure of the thermal insulation exterior wall roof according to claim 3, characterized in that: The wall waterproof layer (5) extends along the connection between the exterior wall (1) and the roof (7) to cover a portion of the roof (7) to form an additional waterproof layer (8).
5. The overflow waterproof structure of the thermal insulation exterior wall roof according to claim 4, characterized in that: A roof insulation layer (9) is arranged on the top of the roof (7), and a roof waterproof layer (10) is arranged on the top of the roof insulation layer (9).
6. The overflow waterproof structure of the thermal insulation exterior wall roof according to claim 1, characterized in that: The embedded sleeve (3) is a PVC sleeve, and the embedded sleeve (3) protrudes from the outer wall (1) by 50 mm.
7. The overflow waterproof structure of the thermal insulation exterior wall roof according to claim 1, characterized in that: The vertical distance between the overflow port (2) and the roof (7) is 30 cm.
8. The overflow waterproof structure of the thermal insulation exterior wall roof according to claim 1, characterized in that: The embedded sleeve (3) slopes toward the outside of the external wall (1).