Roof waterproof construction method and roof waterproof structure

Abstract

The invention belongs to the technical field of building waterproofing, and discloses a roof waterproof construction method and a roof waterproof structure. The roof waterproof construction method comprises the steps that a first waterproof layer and a heat preservation layer are sequentially laid on a reinforced concrete floor; a slope making layer is laid on the heat preservation layer, the height from the center position of the heat preservation layer to the concrete blocks on the periphery is gradually reduced, and a layer of fine aggregate concrete with the thickness of 20-40 mm is laid on the concrete blocks; a second waterproof layer is laid on the slope making layer, and the edge of the second waterproof layer vertically extends upwards along the parapet wall; an isolation layer and a first protection layer are sequentially laid on the second waterproof layer, and the head closing part of the second waterproof layer is higher than the upper surface of the first protection layer. The roof waterproof structure is built through the roof waterproof construction method, roof cracking caused by frost heaving of the slope making layer at the low temperature is avoided, the waterproof effect of the roof is improved, the slope making layer is machined through broken concrete blocks and fine aggregate concrete, and the cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of building waterproofing, and in particular to a roof waterproofing construction method and a roof waterproofing structure. Background Art

[0002] During the construction of building roofs, a slope leveling layer is usually set up. The slope leveling layer is used for drainage to prevent rainwater and snow water from accumulating on the roof for a long time, destroying the waterproof layer, and thus reducing the overall waterproof effect of the roof.

[0003] The slope leveling layer in the prior art is mostly constructed with lightweight aggregate concrete, which contains a lot of water. During the construction process where the ambient temperature is low, the water is difficult to evaporate, causing the lightweight aggregate concrete to frost and expand, resulting in cracks in the slope leveling layer, affecting the waterproofing effect of the roof; in addition, the cost of lightweight aggregate concrete is high, which increases the construction cost. Summary of the invention

[0004] The purpose of the present invention is to provide a roof waterproofing construction method and a roof waterproofing structure, so as to avoid cracking of the slope layer, improve the waterproofing effect of the roof and reduce the construction cost.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A roof waterproofing construction method, comprising the following steps:

[0007] S1: Lay the first waterproof layer and the thermal insulation layer on the reinforced concrete floor slab in sequence;

[0008] S2: laying a slope layer on the insulation layer, including: laying broken concrete blocks on the insulation layer, and gradually reducing the height of the concrete blocks from the center of the insulation layer to the surrounding areas, and laying a layer of fine stone concrete with a thickness of 20-40 mm on the concrete blocks;

[0009] S3: Lay the second waterproof layer on the slope layer, the edge of the second waterproof layer extends vertically upward along the parapet, and fix the end of the second waterproof layer to the parapet with screws;

[0010] S4: laying an isolation layer and a first protective layer in sequence on the second waterproof layer, wherein the end portion of the second waterproof layer is higher than the upper surface of the first protective layer.

[0011] The above-mentioned roof waterproofing construction method, before step S1, further comprises: providing an arc surface or a splayed foot protection structure at the inner corner between the parapet and the roof.

[0012] In the above-mentioned roof waterproofing construction method, step S1 comprises:

[0013] S11. Laying a first waterproof layer on the reinforced concrete floor slab, with the edge of the first waterproof layer extending upward along the arc surface to the inner side of the parapet;

[0014] S12. Lay a thermal insulation layer on the first waterproof layer, wherein the thermal insulation layer is lower than the edge of the first waterproof layer.

[0015] In the above-mentioned roof waterproofing construction method, in step S3, the edge of the first waterproof layer located on the inner side of the parapet is lower than the second waterproof layer.

[0016] In the above-mentioned roof waterproofing construction method, the second waterproof layer is laid by hot melt method, and is laid from the downslope of the slope layer to the upslope of the slope layer, so that the lower edge of the upslope second waterproof layer overlaps the upper edge of the downslope second waterproof layer.

[0017] In the above-mentioned roof waterproofing construction method, after step S4, protective blocks are vertically laid upward on the first protective layer along the inner side of the parapet, so that part of the second waterproof layer is located between the parapet and the protective blocks, and the height of the protective blocks is lower than the edge of the second waterproof layer.

[0018] The above-mentioned roof waterproofing construction method, after laying the protection blocks, also includes: applying a second protective layer on the outer surface of the protection blocks, the second protective layer covering the protection blocks and the second waterproof layer located on the inner side of the parapet.

[0019] In the above-mentioned roof waterproofing construction method, step S4 comprises:

[0020] S41. Laying an isolation layer on the upper surface of the second waterproof layer;

[0021] S42, laying a first protective layer on the upper surface of the isolation layer, processing first dividing slits and second dividing slits on the first protective layer, a plurality of the first dividing slits are arranged at intervals along a first direction and a plurality of the second dividing slits are arranged at intervals along a second direction, and the first direction and the second direction are arranged at an angle.

[0022] The above-mentioned roof waterproofing construction method, wherein, after step S42, further comprises: inserting a breathable member at the junction of the first separation seam and the second separation seam along the vertical direction.

[0023] A roof waterproof structure comprises a horizontally extending horizontal plane and a vertically extending parapet wall. The roof is constructed by adopting the roof waterproof construction method as described above to form the roof waterproof structure.

[0024] Beneficial effects of the present invention:

[0025] A slope layer is laid on the insulation layer, and broken concrete blocks are laid from the center of the insulation layer to the surrounding area with the height gradually decreasing. The gradually decreasing height is convenient for rainwater to flow away, and the concrete blocks have good air permeability, which is conducive to water evaporation; a layer of 20-40mm thick fine stone concrete is laid on the concrete blocks. The small thickness is convenient for water evaporation. Construction in a low temperature environment can avoid frost heave of the slope layer, prevent roof cracking, and improve the waterproof effect of the roof. Broken concrete blocks can make full use of the discarded concrete blocks generated during the construction of the house, reduce the amount of fine stone concrete, and thus reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of a roof waterproof structure provided by an embodiment of the present invention;

[0027] Figure 2 is a schematic diagram of a local roof waterproof structure provided by an embodiment of the present invention;

[0028] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0029] Figure 4 It is a structural schematic diagram of a slope finding layer provided by an embodiment of the present invention;

[0030] Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0031] In the figure:

[0032] 1. Reinforced concrete floor; 11. Parapet; 12. Internal angle; 13. Arc surface;

[0033] 2. The first waterproof layer;

[0034] 3. Insulation layer;

[0035] 4. Slope layer; 41. Concrete blocks; 42. Fine stone concrete;

[0036] 5. Second waterproof layer;

[0037] 6. Isolation layer;

[0038] 7. The first protective layer;

[0039] 8. Protective block;

[0040] 9. Second protective layer;

[0041] 100. Screws. DETAILED DESCRIPTION

[0042] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar parts or parts having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0043] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, it can be a mechanical connection or an electrical connection, it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the description of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0046] The invention provides a roof waterproof construction method and a roof waterproof structure, which are used to avoid cracking of a slope layer, improve the waterproof effect of the roof, and reduce the construction cost.

[0047] like Figures 1 to 5 As shown, the present invention provides a roof waterproofing construction method, comprising the following steps: S1: laying a first waterproofing layer 2 and a thermal insulation layer 3 on a reinforced concrete floor 1 in sequence;

[0048] S2: laying a slope leveling layer 4 on the insulation layer 3, including: laying broken concrete blocks 41 on the insulation layer 3, and gradually decreasing the height of the concrete blocks 41 from the center of the insulation layer 3 to the surrounding areas, and laying a layer of fine stone concrete 42 with a thickness of 20-40 mm on the concrete blocks 41; S3: laying a second waterproof layer 5 on the slope leveling layer 4, the edge of the second waterproof layer 5 extending vertically upward along the parapet 11, and fixing the end of the second waterproof layer 5 to the parapet 11 with screws 100; S4: laying an isolation layer 6 and a first protective layer 7 on the second waterproof layer 5 in sequence, and the end of the second waterproof layer 5 is higher than the upper surface of the first protective layer 7.

[0049] A slope layer 4 is laid on the insulation layer 3, and the height of the concrete blocks 41 gradually decreases from the center of the insulation layer 3 to the surrounding areas. The gradually decreasing height facilitates the flow of rainwater, and the concrete blocks 41 have good air permeability, which is conducive to the volatilization of water; a layer of fine stone concrete 42 with a thickness of 20-40 mm is laid on the concrete blocks 41. The small thickness facilitates the volatilization of water, and the construction in a low temperature environment can avoid the frost heave of the slope layer 4, prevent the roof from cracking, and improve the waterproof effect of the roof. The broken concrete blocks 41 can make full use of the discarded concrete blocks 41 generated during the construction of the house, reduce the amount of fine stone concrete 42, and thus reduce the cost.

[0050] Among them, the reinforced concrete floor slab 1 is formed by pouring concrete, and the concrete is vibrated and smoothed during pouring, which improves the flatness of the roof. No additional processing of the leveling layer is required, which can save raw materials and reduce construction costs.

[0051] See also Figures 1 to 3 , before step S1, it also includes: setting a circular arc surface 13 or an eight-shaped foot protection structure at the inner corner 12 between the parapet 11 and the roof. This step is to make the subsequent first waterproof layer 2 evenly applied, so that the first waterproof layer 2 is continuous and the waterproof effect is improved. The existing cement mortar can be applied to the inner corner 12 to make it into a circular arc surface, and the diameter of the circular arc surface 13 is not less than 50mm, such as 50mm, 55mm, 60mm, 65mm or 70mm. To provide a smoother transition surface, avoid the first waterproof layer 2 from having gaps at the inner corner 12, and improve the waterproof effect; at the same time, the circular arc surface 13 can reduce the stress concentrated on the inner corner 12 and improve the stability of the roof structure. The eight-shaped foot protection structure can be selected according to the on-site construction requirements, such as metal plate eight-shaped foot protection or concrete eight-shaped foot protection.

[0052] In order to improve the waterproof effect of the first waterproof layer 2, step S1 includes: S11, laying the first waterproof layer 2 on the reinforced concrete floor 1, and the edge of the first waterproof layer 2 extends upward along the arc surface 13 to the inner side of the parapet 11; S12, laying the insulation layer 3 on the first waterproof layer 2, and the insulation layer 3 is lower than the edge of the first waterproof layer 2. The insulation layer 3 has a protective effect on the first waterproof layer 2 and improves the service life of the first waterproof layer 2. The first waterproof layer 2 extends upward along the parapet 11 to the top of the insulation layer 3, preventing rainwater from sliding down the edge of the parapet 11 and falling into the gap of the first waterproof layer 2, further improving the waterproof effect of the roof.

[0053] The first waterproof layer 2 can be coated with an existing waterproof coating, which is convenient for construction. For example, the first waterproof layer 2 uses a polyurethane waterproof coating, and the polyurethane waterproof coating is coated on the reinforced concrete floor 1 at least three times, and the thickness of the waterproof coating is 1-2 mm, such as 1 mm, 1.5 mm or 2 mm. Optionally, the thickness of the waterproof coating is 1.5 mm, which can improve the waterproof effect and reduce the material cost.

[0054] The insulation layer 3 can be made of extruded polystyrene board, rock wool board or polyurethane foam to insulate the roof structure. For example, the insulation layer 3 uses B1 grade 120mm extruded polystyrene board, which is easy to cut and install, and improves the construction efficiency. At the same time, the extruded polystyrene board has high strength, which improves the bearing capacity of the roof. The extruded polystyrene board is a closed-cell structure, which can prevent rainwater from penetrating and further improve the waterproof effect of the roof structure. The insulation layer 3 can be laid in one layer or multiple layers, depending on the construction needs on site.

[0055] See also Figure 2 In this embodiment, in step S3, the edge of the first waterproof layer 2 located inside the parapet 11 is lower than the second waterproof layer 5. The edge of the first waterproof layer 2 is relatively low, which is convenient for subsequent processing of the slope layer 4. The slope layer 4 can clamp the edge of the first waterproof layer 2 to the inside of the parapet 11, and there is no need to perform additional sealing treatment on the edge of the first waterproof layer 2, thereby reducing the number of processes and the construction cost.

[0056] The slope leveling layer 4 is used for drainage to prevent rainwater and snow water from accumulating on the roof for a long time, damaging the waterproof layer and reducing the overall waterproof effect of the roof. The slope leveling layer 4 is paved with broken concrete blocks 41 and fine stone concrete 42. Figure 4 and Figure 5First, a layer of broken concrete blocks 41 is laid on the insulation layer 3, and the concrete blocks 41 have a slope. From the center of the insulation layer 3 to the edge of the insulation layer 3, the height of the concrete blocks 41 gradually decreases, which is convenient for rainwater and snow water to flow away. The broken concrete blocks 41 are widely available and can reduce costs. Afterwards, a layer of fine stone concrete 42 is laid on the concrete blocks 41. The thickness of the fine stone concrete 42 is 20-40mm, such as 20mm, 25mm, 30mm, 35mm or 40mm. Optionally, the thickness of the fine stone concrete 42 is 30mm, which reduces costs. When laying the fine stone concrete 42, it is necessary to smooth it as it is vibrated to improve the flatness of the slope layer 4, avoid wrinkles, hollows and other problems in the second waterproof layer 5, and improve the drainage effect.

[0057] Concrete blocks 41 can be made of autoclaved aerated concrete blocks discarded during the construction of houses, so as to achieve the purpose of reducing costs and increasing efficiency. The autoclaved aerated concrete blocks have good air permeability, which is convenient for discharging water vapor, avoiding the freezing and cracking of the slope layer 4 due to the low temperature during winter construction, thereby improving the waterproof effect of the roof structure. The strength grade of fine stone concrete 42 can be selected according to the needs of on-site construction. Optionally, the strength grade of fine stone concrete 42 is C20, which has good fluidity and cohesion and is easy to construct.

[0058] The second waterproof layer 5 can prevent rainwater from penetrating into the slope layer 4, further improving the waterproof effect of the roof structure. The second waterproof layer 5 can be laid by cold bonding or hot melting. In this embodiment, in step S3, the second waterproof layer 5 is laid by hot melting, and is laid from the downslope of the slope layer 4 to the upslope of the slope layer 4, so that the lower edge of the upslope second waterproof layer 5 overlaps the upper edge of the downslope second waterproof layer 5. Prevent rainwater from flowing into the slope layer 4 at the splicing gap of the second waterproof layer 5.

[0059] Since the size of the material used for laying the second waterproof layer 5 is limited, it is necessary to overlap when laying the second waterproof layer 5. Select appropriate waterproof coiled materials according to the needs, and lay the waterproof coiled materials from the edge of the slope layer 4 to the center of the slope layer 4, that is, from the low position of the slope layer 4 to the high position of the slope layer 4. This laying can make the lower edge of the waterproof coiled material located at the uphill position of the slope layer 4 overlap the upper edge of the waterproof coiled material located at the uphill position of the slope layer 4, so as to avoid reverse penetration of rainwater at the overlap of the waterproof coiled materials when it flows naturally, and improve the waterproof effect.

[0060] Specifically, SBS elastomer modified asphalt waterproofing membrane can be used to lay the second waterproof layer 5. The performance grade, base material and covering material of the waterproofing membrane can be selected according to the requirements of the on-site construction. Optionally, the performance grade is Type II to ensure the waterproof performance in a low temperature environment. The base material is polyester fiber felt to improve the strength of the membrane. The covering material is polyethylene film to isolate the membrane and prevent the SBS elastomer modified asphalt from sticking to each other, thereby ensuring the quality of the waterproofing membrane.

[0061] A second waterproof layer 5 is laid on the slope layer 4, and the edge of the second waterproof layer 5 extends vertically upward along the parapet 11. The end of the second waterproof layer 5 is fixed to the parapet 11 with screws 100 to prevent rainwater from sliding down the inner side of the parapet 11 to the gap in the second waterproof layer 5 and then seeping into the slope layer 4, thereby avoiding damage to the slope layer 4.

[0062] The thickness of the second waterproof layer 5 is 4-8 mm, for example, 4 mm, 5 mm, 6 mm, 7 mm or 8 mm, to improve the waterproof ability of the roof structure. Optionally, the thickness of the second waterproof layer 5 is 6 mm. For ease of laying, a 3 mm thick SBS elastomer modified asphalt waterproof membrane can be used to lay two layers to form the second waterproof layer 5, further improving the waterproof performance of the roof structure.

[0063] The isolation layer 6 and the first protective layer 7 are laid on the second waterproof layer 5 in sequence, and the end of the second waterproof layer 5 is higher than the upper surface of the first protective layer 7, so as to facilitate the sealing of the end of the second waterproof layer 5. The isolation layer 6 can be made of an existing 0.4 mm polyethylene film, which is easy to obtain and convenient to construct. The isolation layer 6 can also be made of a polyethylene film of other thicknesses or other materials according to the requirements of on-site construction. The thickness and material of the isolation layer 6 are not specifically limited in this embodiment.

[0064] In this embodiment, step S4 includes: S41, laying an isolation layer 6 on the upper surface of the second waterproof layer 5; S42, laying a first protective layer 7 on the upper surface of the isolation layer 6, processing a first split seam and a second split seam on the first protective layer 7, a plurality of first split seams are arranged at intervals along the first direction and a plurality of second split seams are arranged at intervals along the second direction, and the first direction and the second direction are arranged at an angle. The split seams provide a certain amount of activity space for the first protective layer 7 to prevent the first protective layer 7 from frost heaving and cracking.

[0065] The angle between the first direction and the second direction can be 45°, 60°, 75°, 90°, 105° and 120°. For example, the angle between the first direction and the second direction is 90°, which is convenient for processing. The processing of the partition seam is a mature technology in this field, and this embodiment does not specifically describe the processing of the partition seam.

[0066] In order to discharge the water vapor in the first protective layer 7, after step S42, the method further includes: inserting a breathable member at the junction of the first dividing seam and the second dividing seam in the vertical direction. One or more breathable members may be inserted, and a breathable tube may be inserted at the junction of each first dividing seam and the second dividing seam, or multiple breathable tubes may be inserted at the junction of some first dividing seams and the second dividing seams. The breathable member may be an existing breathable duct.

[0067] In this embodiment, after step S4, a protection block 8 is vertically laid upward on the first protection layer 7 along the inner side of the parapet 11, so that part of the second waterproof layer 5 is located between the parapet 11 and the protection block 8, and the height of the protection block 8 is lower than the edge of the second waterproof layer 5. The protection block 8 can protect the second waterproof layer 5 and increase the service life of the second waterproof layer 5.

[0068] The stacking height of the protection block 8 on the second waterproof layer 5 is not less than 250 mm, which can effectively prevent wall leakage caused by rain splashing and capillary phenomena. The protection block 8 can be made of existing lime sand bricks, and optionally, 180×97×53 mm lime sand bricks are widely available and easy to stack.

[0069] In order to prevent rainwater from penetrating into the wall through the gaps of the protection blocks 8, after the protection blocks 8 are laid, the second protective layer 9 is applied to the outer surface of the protection blocks 8, and the second protective layer 9 covers the protection blocks 8 and the second waterproof layer 5 located on the inner side of the parapet 11. The second protective layer 9 prevents rainwater from penetrating.

[0070] The second protective layer 9 can be coated with cement mortar, and the cement mortar with a ratio of 1:2.5 is selected for easy transportation and construction. The thickness of the second protective layer 9 can be 1mm, 1.5mm or 2mm. Optionally, the thickness of the second protective layer 9 is 1.5mm.

[0071] In other embodiments, a rectangular groove can be opened on the inner wall of the parapet 11, and the edge of the second waterproof layer 5 can be pressed into the groove using a metal strip, and existing sealing materials such as silicone sealing paint can be applied to prevent rainwater from seeping into the slope layer 4 through the gaps in the second waterproof layer 5.

[0072] The present invention also provides a roof waterproof structure, wherein the roof includes a horizontal plane extending horizontally and a parapet wall 11 extending vertically, and the roof is constructed by the above-mentioned roof waterproof construction method to form a roof waterproof structure, thereby preventing the frost heave of the slope leveling layer 4 during winter construction from causing the roof to crack, thereby improving the waterproof effect of the roof.

[0073] Specifically, the roof waterproof structure includes a reinforced concrete floor 1, a first waterproof layer 2, an insulation layer 3, a slope layer 4, a second waterproof layer 5, an isolation layer 6 and a first protective layer 7 which are stacked in sequence from bottom to top.

[0074] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A roof waterproofing construction method, characterized in that: The steps include: S1: laying a first waterproof layer (2) and a thermal insulation layer (3) in sequence on a reinforced concrete floor slab (1); S2: laying a slope leveling layer (4) on the thermal insulation layer (3), comprising: laying crushed concrete blocks (41) on the thermal insulation layer (3), with the height of the concrete blocks (41) gradually decreasing from the center of the thermal insulation layer (3) to the surrounding areas, and laying a layer of fine stone concrete (42) with a thickness of 20-40 mm on the concrete blocks (41); S3: laying a second waterproof layer (5) on the slope leveling layer (4), with the edge of the second waterproof layer (5) extending vertically upward along the parapet (11), and fixing the end portion of the second waterproof layer (5) to the parapet (11) with screws (100); S4: laying an isolation layer (6) and a first protective layer (7) on the second waterproof layer (5) in sequence, with the end portion of the second waterproof layer (5) being higher than the upper surface of the first protective layer (7).

2. The roof waterproofing construction method according to claim 1, characterized in that: Before step S1, the method further includes: providing an arc surface (13) or a splayed foot protection structure at the inner corner (12) between the parapet (11) and the roof.

3. The roof waterproofing construction method according to claim 2, characterized in that: Step S1 includes: S11, laying a first waterproof layer (2) on the reinforced concrete floor (1), with the edge of the first waterproof layer (2) extending upward along the arc surface (13) to the inner side of the parapet (11); S12, laying a thermal insulation layer (3) on the first waterproof layer (2), wherein the thermal insulation layer (3) is lower than the edge of the first waterproof layer (2).

4. The roof waterproofing construction method according to claim 3, characterized in that: In step S3, the edge of the first waterproof layer (2) located on the inner side of the parapet (11) is lower than the second waterproof layer (5).

5. The roof waterproofing construction method according to claim 1, characterized in that: The second waterproof layer (5) is laid by hot-melt method, and is laid from the downslope of the slope leveling layer (4) to the upslope of the slope leveling layer (4), so that the lower edge of the upslope second waterproof layer (5) overlaps the upper edge of the downslope second waterproof layer (5).

6. The roof waterproofing construction method according to claim 1, characterized in that: After step S4, a protection block (8) is vertically laid upward on the first protection layer (7) along the inner side of the parapet (11), so that part of the second waterproof layer (5) is located between the parapet (11) and the protection block (8), and the height of the protection block (8) is lower than the edge of the second waterproof layer (5).

7. The roof waterproofing construction method according to claim 6, characterized in that: After the protection block (8) is laid, the method further comprises: applying a second protection layer (9) on the outer surface of the protection block (8), wherein the second protection layer (9) covers the protection block (8) and a second waterproof layer (5) located on the inner side of the parapet (11).

8. The roof waterproofing construction method according to any one of claims 1 to 7, characterized in that: Step S4 includes: S41, laying an isolation layer (6) on the upper surface of the second waterproof layer (5); S42, laying a first protective layer (7) on the upper surface of the isolation layer (6), processing a first dividing seam and a second dividing seam on the first protective layer (7), a plurality of the first dividing seams being arranged at intervals along a first direction and a plurality of the second dividing seams being arranged at intervals along a second direction, and the first direction and the second direction being arranged at an angle.

9. The roof waterproofing construction method according to claim 8, characterized in that: After step S42, the method further includes: inserting a breathable member at the junction of the first dividing seam and the second dividing seam along the vertical direction.

10. A roof waterproof structure, characterized in that: The roof comprises a horizontal plane extending horizontally and a parapet wall (11) extending vertically, and the roof waterproofing construction method according to any one of claims 1 to 9 is used to construct the roof to form a roof waterproofing structure.

Images