Waterproof structure for roof joints

Abstract

The utility model relates to a waterproof structure for roof gap, it includes: inner waterproof layer, the inner waterproof layer shape matchingly lays the top of second wall body, drainage unit, drainage unit sets up the top of inner waterproof layer, outer waterproof layer, outer waterproof layer lays the top of inner waterproof layer and drainage unit, waterproof unit, waterproof unit sets up between first wall body and second wall body. The utility model discloses a waterproof structure for roof gap installs waterproof unit at the gap of first wall body and second wall body, and the rainwater at the gap is guided to the top of second wall body, installs drainage unit at the top of second wall body, and rainwater is discharged from one side, and both sides of drainage unit are provided with waterproof layer simultaneously, to improve the waterproof performance of second wall body, avoid the penetration of rainwater at second wall body, improve the waterproof capacity between adjacent wall body, avoid the collapse of wall body.

Description

Technical Field

[0001] This utility model belongs to the field of roof waterproofing technology, specifically relating to a waterproof structure for roof gaps. Background Technology

[0002] Gaps between adjacent walls (especially at corners, where different materials meet, or where new and old walls connect) are a very common phenomenon. The main reasons involve multiple aspects such as material properties, structural movement, construction techniques, and environmental factors.

[0003] When gaps appear between adjacent walls, rainwater will continuously seep into the gaps, gradually corroding the base structure of the walls, causing the gaps to widen. In severe cases, this can even cause the walls to collapse, endangering the property and safety of nearby residents. Utility Model Content

[0004] This utility model provides a waterproof structure for roof gaps, which improves the waterproof performance of gaps between adjacent walls, prevents rainwater from seeping into the gaps, extends the lifespan of the walls, and prevents the walls from collapsing and endangering the property and safety of nearby residents.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a waterproof structure for roof gaps, comprising an adjacent first wall and a second wall, and a gap formed between the first wall and the second wall, and further comprising:

[0006] An inner waterproof layer, the inner waterproof layer being laid in a shape matching the top of the second wall;

[0007] A drainage unit is disposed on top of the inner waterproof layer;

[0008] An outer waterproof layer is laid on top of the inner waterproof layer and the drainage unit;

[0009] A waterproof unit is disposed between the first wall and the second wall and abuts against the outer waterproof layer.

[0010] Optimally, the inner waterproof layer includes a first inner waterproof layer and a second inner waterproof layer laid on the top of the second wall, and an inner waterproof layer laid on the side of the second wall away from the first wall, wherein the inner waterproof layer is connected to the first inner waterproof layer and the second inner waterproof layer.

[0011] Optimally, it also includes an insulation layer laid on top of the second wall, a first leveling layer laid on top of the insulation layer, and a second leveling layer laid on top of the first inner waterproof layer, wherein the first inner waterproof layer is laid on top of the first leveling layer.

[0012] Optimally, the drainage unit includes a tile strip fixed at intervals on the top of the second leveling layer, a water-guiding strip installed on the top of the tile strip, a drainage plate installed on the top of the water-guiding strip, an upper weight-reducing groove spaced apart on the top of the drainage plate, and a lower weight-reducing groove spaced apart on the bottom of the drainage plate.

[0013] Optimally, the outer waterproof layer includes a first outer waterproof layer laid on top of the drainage board, a second outer waterproof layer laid on top of the second inner waterproof layer, and an outer waterproof layer laid on the side of the inner waterproof layer away from the second wall, wherein the outer waterproof layer is connected to the first and second outer waterproof layers.

[0014] Optimally, the waterproof unit includes a sealant layer poured into the gap, a fixing layer installed on the side of the first wall near the second wall, and a cover plate installed on the outside of the fixing layer and abutting against the outer waterproof layer.

[0015] Optimally, the fixing layer includes a groove formed on the side of the first wall near the second wall, an inner fixing layer fixed in the groove, an outer fixing layer fixed on one side of the first wall and connected to the inner fixing layer, and a first inclined portion inclinedly disposed on the top of the inner fixing layer.

[0016] Optimally, the cover plate includes a first cover plate that is obliquely fixed to the top of the inner fixing layer, a patch plate that is fixed to one side of the outer fixing layer and connected to the first cover plate, a second cover plate that is fixed to the top of the outer waterproof layer, and a second inclined portion that is obliquely disposed between the patch plate and the second cover plate.

[0017] Ideally, the insulation layer is an extruded polystyrene insulation board.

[0018] Ideally, the inner and outer waterproof layers are made of EPDM waterproof membrane.

[0019] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0020] This utility model relates to a waterproof structure for roof gaps. By installing waterproof units at the gap between the first and second walls, rainwater is guided from the gap to the top of the second wall. By installing drainage units at the top of the second wall, rainwater is discharged from one side. At the same time, waterproof layers are provided on both sides of the drainage units to improve the waterproof performance of the second wall and prevent rainwater from seeping into the second wall. The structure is compact, improves the waterproof capability between adjacent walls, prevents rainwater from seeping in and corroding the wall base structure, and prevents the wall from collapsing. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a partial structural schematic diagram of the present invention;

[0023] Figure 3 This is a partial structural schematic diagram of the present invention;

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. First wall; 2. Second wall; 3. Gap; 4. Joint filler; 5. Groove; 6. Inner fixing layer; 7. Outer fixing layer; 8. First inclined section; 9. First cover plate; 10. Second cover plate; 11. Adhesive board; 12. Second inclined section; 13. Insulation layer; 14. First leveling layer; 15. First inner waterproof layer; 16. Second inner waterproof layer; 17. Inner waterproof layer; 18. Second leveling layer; 19. Batten strip; 20. Water guide strip; 21. Drainage board; 22. Upper weight-reducing groove; 23. Lower weight-reducing groove; 24. First outer waterproof layer; 25. Second outer waterproof layer; 26. Outer waterproof layer; 27. Fastening bolt. Detailed Implementation

[0026] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0027] like Figure 1 The diagram shows a waterproof structure for roof gaps according to this utility model, including a first wall 1, a second wall 2, a gap 3, an inner waterproof layer, a drainage unit, an outer waterproof layer, and a waterproof unit. The first wall 1 and the second wall 2 are constructed of bricks and cement mortar, and a gap 3 is formed between the first wall 1 and the second wall 2 (due to uneven settlement of the foundation, temperature changes, shrinkage of building materials, etc., gaps 3 appear between adjacent walls).

[0028] The top of the second wall 2 on the side away from the first wall 1 has an installation groove for fixing and installing the waterproof layer and drainage unit. This facilitates the timely drainage of rainwater falling between the first wall 1 and the second wall 2, preventing rainwater from accumulating between the first wall 1 and the second wall 2 and seeping into the gaps, thus affecting the wall's stability. (Because the second wall 2 has an installation groove on the side away from the top of the first wall 1, the second wall 2 has two sets of top surfaces and one set of side surfaces. The top surface of the second wall 2 on the side closer to the first wall 1 is the first top surface, and the top surface of the second wall 2 on the side away from the first wall 1 is the second top surface. The side surface connects the first top surface and the second top surface.)

[0029] like Figure 3As shown, the insulation layer 13 is laid in a matching shape on the second top surface of the second wall 2. The insulation layer 13 is extruded polystyrene insulation board, and its thickness can be selected as 35mm. Extruded polystyrene insulation board is a material that can maintain its insulation performance for a long time. It is a foamed rigid plastic board made of polystyrene resin as the raw material, with the addition of other polymers, and formed by heating and extrusion. Due to the formation of many closed-cell structures within the board, it has the characteristics of strong pressure resistance, good waterproof performance, chemical corrosion resistance, and strong anti-aging ability.

[0030] The first leveling layer 14 is laid on top of the insulation layer 13 in a matching shape. The first leveling layer 14 is 1:3 cement mortar. By setting the first leveling layer 14, the irregular shape defects on the surface of the insulation layer 13 are eliminated, ensuring that the surface of the waterproof layer will not have uneven areas when the waterproof layer is laid later, thus avoiding water accumulation.

[0031] The inner waterproof layer is laid on the top of the second wall 2. The inner waterproof layer is EPDM waterproof membrane. EPDM waterproof membrane has the advantages of weather resistance, aging resistance, high tensile strength, large elongation, and strong adaptability to the expansion or cracking of the base layer.

[0032] The inner waterproofing layer includes a first inner waterproofing layer 15, a second inner waterproofing layer 16, and an inner side waterproofing layer 17. The first inner waterproofing layer 15 is laid on top of the first leveling layer 14, the second inner waterproofing layer 16 is laid on the first top surface of the second wall 2, and the inner side waterproofing layer 17 is laid on the side of the second wall 2. The inner side waterproofing layer 17 is integrally formed with the first inner waterproofing layer 15 and the second inner waterproofing layer 16, with no gaps at the joints to prevent rainwater penetration (e.g., Figure 3 As shown, the inner waterproof layer is Z-shaped and completely covers the top of the second wall 2, preventing rainwater between the first wall 1 and the second wall 2 from seeping to the top of the second wall 2.

[0033] The second leveling layer 18 is laid on top of the first inner waterproof layer 15 in a matching shape. The second leveling layer 18 is 1:3 cement mortar. By setting the second leveling layer 18, the irregular shape defects on the surface of the first inner waterproof layer 15 are eliminated, ensuring that the surface of the drainage unit will not have uneven areas when the drainage unit is laid later, thus avoiding water accumulation.

[0034] The drainage unit includes battens 19, runner strips 20, drainage board 21, upper weight-reducing groove 22, and lower weight-reducing groove 23. The battens 19 are fixed at intervals on the top of the second leveling layer 18, and the runner strips 20 are fixed to the top of the battens 19 by screws. The drainage board 21 is fixedly installed by the runner strips 20.

[0035] The drainage board 21 is fixed to the top of the water-reducing strip 20 by screws. The upper weight-reducing groove 22 is spaced out on the top of the drainage board 21, and the lower weight-reducing groove 23 is spaced out on the bottom of the drainage board 21 to reduce the weight of the drainage board 21, which facilitates installation and saves the materials required for processing, thus saving costs. (Because the upper weight-reducing groove 22 and the lower weight-reducing groove 23 are respectively provided on the top and bottom of the drainage board 21, the drainage board 21 is wavy, which improves the bending resistance and load-bearing strength of the board, and also prevents rainwater from flowing back and seeping into the interior of the second wall 2.)

[0036] When actually installing the drainage board 21, the drainage board 21 is not installed horizontally, but with a certain slope (the slope is between 5-10° to facilitate rainwater drainage). Figure 1 , 3 The diagram shows a side sectional view. The wide side of the drainage board 21 faces the viewing direction, and the long side of the drainage board 21 is installed at a certain slope to ensure that the rainwater falling into the upper weight reduction groove 22 is discharged along the long side of the drainage board 21 under the action of gravity (cement mortar can be applied to the top of the water-guiding strip 20 during installation to ensure the inclined installation of the drainage board 21).

[0037] like Figure 3 As shown, the outer waterproof layer is laid on top of the inner waterproof layer and the drainage unit. The outer waterproof layer is made of EPDM waterproof membrane. EPDM waterproof membrane has the advantages of weather resistance, aging resistance, high tensile strength, large elongation, and strong adaptability to the expansion or cracking of the substrate.

[0038] The external waterproofing layer includes a first external waterproofing layer 24, a second external waterproofing layer 25, and an outer waterproofing layer 26. The first external waterproofing layer 24 is laid on top of the drainage board 21, the second external waterproofing layer 25 is laid on top of the second inner waterproofing layer 16, and the outer waterproofing layer 26 is laid on the side of the inner waterproofing layer 17 away from the second wall 2. The outer waterproofing layer 26 is integrally formed with the first external waterproofing layer 24 and the second external waterproofing layer 25, with no gaps at the joints to prevent rainwater penetration (e.g., Figure 3 As shown, the outer waterproof layer is Z-shaped and completely covers the top of the inner waterproof layer and the drainage unit, preventing rainwater between the first wall 1 and the second wall 2 from seeping into the inside of the second wall 2.

[0039] After the external waterproofing layer is laid, use fastening bolts 27 to secure it. For example... Figure 3 As shown, there are at least three rows of fastening bolts 27. One row of fastening bolts 27 passes through the second cover plate 10, the second outer waterproof layer 25, and the second inner waterproof layer 16 from top to bottom and is fixed to the first top surface of the second wall 2. Another row of fastening bolts 27 passes through the outer waterproof layer 26 and the inner waterproof layer 17 from right to left and is fixed to the side of the second wall 2. Another row of fastening bolts 27 passes through the first outer waterproof layer 24 and the drainage plate 21 from top to bottom and is fixed to the top of the water-guiding strip 20.

[0040] The drainage unit includes a joint filler layer 4, a groove 5, an inner fixing layer 6, an outer fixing layer 7, a first inclined section 8, a first cover plate 9, a second cover plate 10, a panel 11, and a second inclined section 12. The joint filler layer 4 is cement mortar, which is pre-poured into the gap 3 between the first wall 1 and the second wall 2 to isolate rainwater.

[0041] like Figure 2 As shown, the groove 5 is formed on the side of the first wall 1 near the second wall 2, and the groove 5 is rectangular. The operator applies pre-mixed cement mortar to the bottom of the groove 5 and the side of the first wall 1, thereby forming an inner fixing layer 6 in the groove 5 and an outer fixing layer 7 on the side of the first wall 1 near the second wall 2. The first inclined part 8 is inclinedly set on the top of the inner fixing layer 6 to facilitate the drainage of rainwater, and the setting of the fixing layer also increases the waterproof effect.

[0042] The cover plate is made of aluminum metal plate and is laid on top of the inner fixing layer 6, the outer fixing layer 7, and the second outer waterproof layer 25 in a matching shape. Thus, a first cover plate 9 is formed on top of the inner fixing layer 6, a panel 11 is formed on the side of the outer fixing layer 7 away from the first wall 1, and a second cover plate 10 is formed on top of the second outer waterproof layer 25. Since the top of the inner fixing layer 6 is inclined, the first cover plate 9 is also inclined to facilitate the drainage of rainwater.

[0043] like Figure 1 As shown, the second inclined portion 12 is disposed between the mounting plate 11 and the second cover plate 10 to improve the structural strength of the cover plate. After the cover plate is installed, the fastening bolts 27 are passed through the first cover plate 9 and the inner fixing layer 6 and fixed to the top of the first wall 1 to complete the fixing of the cover plate.

[0044] like Figure 1 As shown, the gap 3 between the first wall 1 and the second wall 2 is completely covered by the cover plate, and the falling rainwater can only fall on the aluminum metal cover plate. The gap at the connection between the waterproof unit and the first wall 1 is located inside the groove 5, so vertically falling rainwater will not enter the groove 5, thus improving the waterproof effect. Even if the falling trajectory of the rainwater is changed by the influence of external wind (i.e., the rainwater changes from vertical to inclined falling), after the rainwater enters the groove 5, under the guiding effect of the inclined first cover plate 9, the rainwater will flow along the first cover plate 9 to the second cover plate 10. Moreover, the inner side of the cover plate is also provided with a fixing layer and a sealant layer 4, which further improves the waterproof effect.

[0045] Rainwater discharged from the cover plate passes through the outer waterproof layer and falls onto the drainage board 21, eventually draining out from one side of the drainage board 21. Because the inner waterproof layer covers the outside of the second wall 2, and the outer waterproof layer covers the top of the inner waterproof layer and the drainage board 21, the second wall 2 is completely isolated, preventing rainwater from seeping into the gap 3 from the inside of the second wall 2.

[0046] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A waterproof structure for roof gaps, comprising an adjacent first wall (1) and a second wall (2) and a gap (3) formed between the first wall (1) and the second wall (2), characterized in that, It also includes: An inner waterproof layer, the inner waterproof layer being laid in a shape matching the top of the second wall (2); A drainage unit is disposed on top of the inner waterproof layer; An outer waterproof layer is laid on top of the inner waterproof layer and the drainage unit; A waterproof unit is disposed between the first wall (1) and the second wall (2) and abuts against the outer waterproof layer.

2. A waterproof structure for roof gaps according to claim 1, characterized in that: The inner waterproof layer includes a first inner waterproof layer (15) and a second inner waterproof layer (16) laid on the top of the second wall (2) and an inner waterproof layer (17) laid on the side of the second wall (2) away from the first wall (1), the inner waterproof layer (17) being connected to the first inner waterproof layer (15) and the second inner waterproof layer (16).

3. A waterproof structure for roof gaps according to claim 2, characterized in that: It also includes an insulation layer (13) laid on top of the second wall (2), a first leveling layer (14) laid on top of the insulation layer (13), and a second leveling layer (18) laid on top of the first inner waterproof layer (15), the first inner waterproof layer (15) being laid on top of the first leveling layer (14).

4. A waterproof structure for roof gaps according to claim 3, characterized in that: The drainage unit includes a tile strip (19) fixed at intervals on the top of the second leveling layer (18), a water-guiding strip (20) installed on the top of the tile strip (19), a drainage plate (21) installed on the top of the water-guiding strip (20), an upper weight-reducing groove (22) spaced at intervals on the top of the drainage plate (21), and a lower weight-reducing groove (23) spaced at intervals on the bottom of the drainage plate (21).

5. A waterproof structure for roof gaps according to claim 4, characterized in that: The outer waterproof layer includes a first outer waterproof layer (24) laid on top of the drainage board (21), a second outer waterproof layer (25) laid on top of the second inner waterproof layer (16), and an outer waterproof layer (26) laid on the side of the inner waterproof layer (17) away from the second wall (2). The outer waterproof layer (26) is connected to the first outer waterproof layer (24) and the second outer waterproof layer (25).

6. A waterproof structure for roof gaps according to claim 1, characterized in that: The waterproof unit includes a sealant layer (4) poured into the gap (3), a fixing layer installed on the side of the first wall (1) near the second wall (2), and a cover plate installed on the outside of the fixing layer and abutting against the outer waterproof layer.

7. A waterproof structure for roof gaps according to claim 6, characterized in that: The fixing layer includes a groove (5) formed on the side of the first wall (1) near the second wall (2), an inner fixing layer (6) fixed in the groove (5), an outer fixing layer (7) fixed on the side of the first wall (1) and connected to the inner fixing layer (6), and a first inclined portion (8) inclinedly disposed on the top of the inner fixing layer (6).

8. A waterproof structure for roof gaps according to claim 7, characterized in that: The cover plate includes a first cover plate (9) that is obliquely fixed to the top of the inner fixing layer (6), a patch plate (11) that is fixed to one side of the outer fixing layer (7) and connected to the first cover plate (9), a second cover plate (10) that is fixed to the top of the outer waterproof layer, and a second inclined portion (12) that is obliquely disposed between the patch plate (11) and the second cover plate (10).

9. A waterproof structure for roof gaps according to claim 3, characterized in that: The insulation layer (13) is an extruded polystyrene insulation board.

10. A waterproof structure for roof gaps according to claim 1, characterized in that: The inner and outer waterproof layers are made of EPDM waterproof membrane.

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