Leakage-proof structure of roof rear opening

Abstract

The utility model relates to a leak-proof structure of a roof rear hole, which comprises a roof layer, the roof layer is provided with a hole for discharging oil smoke or air, a water swelling strip is fixedly arranged on the roof layer close to the side wall of the periphery of the hole, and a circle of water retaining concrete block is poured on the roof layer and around the periphery of the hole. The water swelling strip is positioned between the water retaining concrete block and the roof layer; the inner side wall of the water retaining concrete block is flush with the side wall of the hole, a waterproof coating layer is brushed between the outer side wall of the water retaining concrete block and the roof layer, a reinforcing layer is arranged on the roof layer, one side of the reinforcing layer abuts against the outer side wall of the water retaining concrete block, and a waterproof structure layer is arranged between the reinforcing layer and the outer side wall of the water retaining concrete block. The holes are formed in the roof layer, the water retaining concrete blocks and the reinforcing layer are arranged around the holes, and the waterproof structures are arranged among the holes, the water retaining concrete blocks and the reinforcing layer, so that the roof structure has the advantages of being stable in structure and reliable in waterproof performance.

Description

Technical Field

[0001] This utility model belongs to the field of roof opening and leak prevention technology, and particularly relates to a leak prevention structure for roof openings. Background Technology

[0002] Nowadays, villas, rooftops, and the rooftops of major shopping malls often require roof renovations due to their age. These renovations may include kitchen exhaust system modifications or bathroom ventilation system modifications. Because the internal structural layout has changed, the original exhaust vents or vents may need to be relocated, necessitating modifications to the roof. However, if the waterproofing measures are not adequate, leaks can occur in these newly drilled holes over time, leading to repeated waterproofing work, excessive costs, and structural instability. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a leak-proof structure for roofs with rear openings that is structurally stable and waterproof.

[0004] The purpose of this utility model is achieved through the following technical solution: This leak-proof structure with a rear-opening hole in the roof includes a roof layer, on which holes for supplying and exhausting fumes or air are opened. A water-swellable sealing strip is installed and fixed on the roof layer near the sidewalls of the holes. A ring of water-retaining concrete blocks is poured around the holes on the roof layer, and the water-swellable sealing strip is located between the bottom surface of the water-retaining concrete blocks and the top surface of the roof layer. The inner sidewall of the water-retaining concrete blocks is flush with the sidewall of the holes. A waterproof coating layer is applied between the outer sidewall of the water-retaining concrete blocks and the roof layer. A reinforcing layer is provided on the roof layer, with one side of the reinforcing layer abutting against the outer sidewall of the water-retaining concrete blocks. A waterproof structural layer is provided between the reinforcing layer and the outer sidewall of the water-retaining concrete blocks.

[0005] The beneficial effects of this utility model are as follows: Compared with the prior art, by making holes in the roof layer, setting water-retaining concrete blocks and reinforcement layers around the holes, and setting a waterproof structure between the three, it has the advantages of stable structure and reliable waterproofing.

[0006] Preferably, the reinforcement layer includes a foamed concrete layer, an insulation layer, and a concrete layer. The foamed concrete layer is bonded to the roof layer, and the insulation layer and the concrete layer are sequentially stacked on the foamed concrete layer. The waterproof structural layer is disposed between the bottom of the waterproof coating layer and the insulation layer and the sidewall of the concrete layer. Through the above structure, not only is the insulation effect of the roof layer better, but the waterproof effect of the roof layer is also further improved.

[0007] Preferably, the waterproof structural layer includes a first waterproof layer and a second waterproof layer. The first waterproof layer is disposed on the foamed concrete layer, and the second waterproof layer is disposed on the outer wall of the water-retaining concrete block. One end of the second waterproof layer overlaps with the first waterproof layer, and the other end of the second waterproof layer is fixed to the outer wall of the water-retaining concrete block by a finishing nail. With the above structure, the waterproof effect between the water-retaining concrete block and the reinforcement layer is better.

[0008] Preferably, the waterproof structural layer further includes a sealant caulking strip, which is disposed between the concrete layer, the insulation layer, and the second waterproof layer. The above structure improves the waterproof performance between the concrete layer, the insulation layer, and the water-retaining concrete block, and forms a double waterproof protection with the second waterproof layer.

[0009] Preferably, the cross-section of the water-retaining concrete block is L-shaped, the first vertical outer side of the water-retaining concrete block abuts against the reinforcement layer, and the upper surface of the water-retaining concrete block is flush with the upper surface of the reinforcement layer. By setting the water-retaining concrete block to an L-shape, a leak-proof effect is achieved between the bottom and the reinforcement layer and the waterproof structural layer. At the same time, aligning the upper surface of the water-retaining concrete block with the upper surface of the reinforcement layer makes subsequent construction of the exhaust pipe or vent pipe for the hole more convenient.

[0010] Preferably, the sidewalls around the hole, the inner wall of the water-retaining concrete block, and the bottom surface of the roof layer are all coated with a waterproof coating layer; this further enhances the leak-proof effect of the inner wall of the water-retaining concrete block, the bottom surface of the roof layer, and the sidewalls around the hole. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of the leak-proof structure with a rear opening in the roof according to this utility model.

[0012] Figure 2 yes Figure 1 A magnified structural diagram at point A.

[0013] The labels in the attached diagram are as follows: 1. Roof layer; 2. Hole; 3. Water-swellable waterproofing strip; 4. Water-retaining concrete block; 5. Waterproof coating layer; 6. Reinforcement layer; 7. Waterproof structural layer; 8. Termination nail; 61. Foamed concrete layer; 62. Insulation layer; 63. Concrete layer; 71. First waterproof layer; 72. Second waterproof layer; 73. Joint sealant. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings: as shown in the drawings Figure 1 , 2As shown, this utility model includes a roof layer 1, on which holes 2 are provided for supplying and exhausting fumes or air. Water-swellable sealing strips 3 are installed and fixed on the roof layer 1 near the side walls around the holes 2. A ring of water-retaining concrete blocks 4 is poured around the holes 2 on the roof layer 1, with the water-swellable sealing strips 3 located between the bottom surface of the water-retaining concrete blocks 4 and the top surface of the roof layer 1. The inner side wall of the water-retaining concrete blocks 4 is flush with the side wall of the holes 2. A waterproof coating layer 5 is applied between the outer side wall of the water-retaining concrete blocks 4 and the roof layer 1. A reinforcing layer 6 is provided on the roof layer 1, with one side of the reinforcing layer 6 abutting against the outer side wall of the water-retaining concrete blocks 4. A waterproof structural layer 7 is provided between the reinforcing layer 6 and the outer side wall of the water-retaining concrete blocks 4. The waterproof coating layer 5 is a cement-based penetrating crystalline waterproof coating.

[0015] The reinforcing layer 6 includes a foamed concrete layer 61, an insulation layer 62, and a concrete layer 63. The foamed concrete layer 61 is bonded to the roof layer 1, and the insulation layer 62 and the concrete layer 63 are sequentially stacked on the foamed concrete layer 61. The waterproof structural layer 7 is disposed between the waterproof coating layer 5, the bottom of the insulation layer 62, and the sidewall of the concrete layer 63. The foamed concrete layer 61 is a foamed concrete board, the insulation layer 62 is an insulation board used in building construction, and the concrete layer 63 is cast-in-place concrete.

[0016] The waterproof structural layer 7 includes a first waterproof layer 71 and a second waterproof layer 72. The first waterproof layer 71 is disposed on the foamed concrete layer 61, and the second waterproof layer 72 is disposed on the outer wall of the water-retaining concrete block 4. One end of the second waterproof layer 72 overlaps with the first waterproof layer 71, and the other end of the second waterproof layer 72 is fixed to the outer wall of the water-retaining concrete block 4 by a finishing nail 8. Both the first waterproof layer 71 and the second waterproof layer 72 are asphalt waterproof membranes.

[0017] The waterproof structural layer 7 also includes an occlusive sealant strip 73, which is disposed between the concrete layer 63, the insulation layer 62, and the second waterproof layer 72.

[0018] The cross-section of the water-retaining concrete block 4 is L-shaped. The first vertical outer side of the water-retaining concrete block 4 abuts against the reinforcement layer 6, and the upper surface of the water-retaining concrete block 4 is flush with the upper surface of the reinforcement layer 6.

[0019] Waterproof coating layer 5 is applied to the four sides of hole 2, the inner side of water-retaining concrete block 4, and the bottom surface of roof layer 1.

[0020] The specific construction steps of this utility model are as follows: S1. Drill holes 2 on the roof layer 1 according to the required opening positions, and within a 200mm wide area around the holes 2, roughen and clean the roof layer 1, and apply concrete interface agent and cement-based penetrating crystalline waterproof coating, and install water-swellable waterstop strips 3; S2. Pour water-retaining concrete blocks 4 within a 200mm wide area around the holes and chemically anchor them to the roof layer 1, and apply concrete interface agent and cement-based penetrating crystalline waterproof coating to the outer wall of the water-retaining concrete blocks 4, and pour foam... S3. Foamed concrete layer 61; S4. Asphalt waterproof membrane is bonded to foamed concrete layer 61, and asphalt waterproof membrane is bonded to the outer wall of water-retaining concrete block 4 on the basis of waterproof coating and overlapped with the above membrane; S5. Insulation layer 62 and concrete layer 63 are poured in sequence, and caulking strip 73 is embedded between concrete layer 63, insulation layer 62 and second waterproof layer 72; S6. Cement-based penetrating crystalline waterproof coating is applied to the side walls of hole 2, the inner side wall of water-retaining concrete block 4 and the bottom surface of roof layer 1.

[0021] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A leak-proof structure with a rear opening in the roof, comprising a roof layer (1), characterized in that: The roof layer (1) has holes (2) for supplying and exhausting oil fumes or exhaust gas. Water-swellable sealing strips (3) are installed and fixed on the roof layer (1) near the side walls of the holes (2). A ring of water-retaining concrete blocks (4) is poured on the roof layer (1) and around the holes (2). The water-swellable sealing strips (3) are located between the bottom surface of the water-retaining concrete blocks (4) and the top surface of the roof layer (1). The inner side wall of the water-retaining concrete blocks (4) is flush with the side wall of the holes (2). A waterproof coating layer (5) is applied between the outer side wall of the water-retaining concrete blocks (4) and the roof layer (1). A reinforcing layer (6) is provided on the roof layer (1). One side of the reinforcing layer (6) abuts against the outer side wall of the water-retaining concrete blocks (4). A waterproof structural layer (7) is provided between the reinforcing layer (6) and the outer side wall of the water-retaining concrete blocks (4).

2. The leak-proof structure with a rear opening in the roof according to claim 1, characterized in that: The reinforcement layer (6) includes a foamed concrete layer (61), an insulation layer (62), and a concrete layer (63). The foamed concrete layer (61) is bonded to the roof layer (1), and the insulation layer (62) and the concrete layer (63) are stacked on the foamed concrete layer (61) in sequence. The waterproof structural layer (7) is disposed between the bottom of the waterproof coating layer (5) and the insulation layer (62) and the side wall of the concrete layer (63).

3. The leak-proof structure with a rear opening in the roof according to claim 2, characterized in that: The waterproof structural layer (7) includes a first waterproof layer (71) and a second waterproof layer (72). The first waterproof layer (71) is disposed on the foamed concrete layer (61), and the second waterproof layer (72) is disposed on the outer wall of the water-retaining concrete block (4). One end of the second waterproof layer (72) overlaps with the first waterproof layer (71), and the other end of the second waterproof layer (72) is fixed to the outer wall of the water-retaining concrete block (4) by a finishing nail (8).

4. The leak-proof structure with a rear opening in the roof according to claim 3, characterized in that: The waterproof structural layer (7) also includes an occlusive sealant strip (73), which is disposed between the concrete layer (63), the insulation layer (62), and the second waterproof layer (72).

5. The leak-proof structure with a rear opening in the roof according to claim 1, characterized in that: The cross-section of the water-retaining concrete block (4) is L-shaped. The first vertical outer side of the water-retaining concrete block (4) abuts against the reinforcing layer (6), and the upper surface of the water-retaining concrete block (4) is flush with the upper surface of the reinforcing layer (6).

6. The leak-proof structure with a rear opening in the roof according to claim 1, characterized in that: The four sides of the hole (2), the inner side of the water-retaining concrete block (4) and the bottom surface of the roof layer (1) are all coated with a waterproof coating layer (5).

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