Roof parapet flashing construction structure
By using precast roll protective panels bonded to waterproof membrane in the roof parapet flashing structure, and combining this with the design of concrete cantilever and insulation layer, the problem of easy mortar layer detachment is solved, and the service life and structural stability of waterproof membrane are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-10
AI Technical Summary
In traditional roof parapet flashing structures, the mortar layer is prone to hollowing, cracking, and peeling, affecting the waterproofing effect and leading to a decline in construction quality.
Prefabricated protective panels are bonded to the waterproof membrane and fixed with concrete lugs. Combined with the roof insulation layer and protective layer, they form an integral structure, enhancing the protection and fixation of the waterproof membrane.
It improves the service life of waterproof membranes, enhances structural stability and waterproof performance, simplifies construction steps, and reduces costs.
Smart Images

Figure CN224106742U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of parapet wall flashing structure, specifically a construction structure for roof parapet wall flashing. Background Technology
[0002] The roof parapet flashing structure is mainly used to solve the waterproofing problem at the junction of the roof and the parapet wall. Proper flashing treatment can effectively prevent rainwater infiltration and protect the building structure from damage.
[0003] After the traditional waterproofing membrane for the parapet wall flashing of a roof is installed, a mortar layer is usually applied over the membrane to form a protective layer. Figure 1 As shown, however, after the mortar layer is formed, it is very easy for it to become hollow, cracked, and fall off, thus affecting the construction quality of the roof project. Based on this, this utility model proposes a roof parapet flashing construction structure to solve the above problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a roof parapet flashing construction structure. A mortar layer is used to fill and bond the back of the prefabricated roll protection board to the waterproof roll, thereby protecting the waterproof roll and improving its service life.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a roof parapet flashing construction structure, comprising a waterproof membrane laid on the parapet wall and the roof, including:
[0006] A prefabricated protective sheet is installed on the waterproof membrane on the parapet wall using a mortar bonding layer. The mortar bonding layer fills and bonds the back of the prefabricated protective sheet to the waterproof membrane, thereby protecting the waterproof membrane and extending its service life.
[0007] Concrete cantilever lugs are installed on the surface of the parapet wall, with their ends bent downwards. The top of the precast membrane protective plate and the end of the waterproof membrane extend to the inside of the bend of the concrete cantilever lug. The concrete cantilever lugs effectively fix the waterproof membrane and the precast membrane protective plate.
[0008] The roof insulation layer is laid on the waterproof membrane on the roof, and the bottom ends of the mortar bonding layer and the precast membrane protective board are bonded to the upper surface of the roof insulation layer; the roof insulation layer can be used to provide thermal insulation and reduce heat loss.
[0009] A protective layer is laid on the surface of the roof insulation layer and abuts against the lower outer surface of the precast roll protective panel. The protective layer protects the roof insulation layer and secures the lower part of the precast roll protective panel.
[0010] Further, the mortar adhering layer is cement mortar, and the prefabricated coiled material protection plate and the waterproof coiled material are filled and bonded by the cement mortar.
[0011] Further, the prefabricated coiled material protection plate has a thickness of 12 mm, which can effectively resist external mechanical damage, such as damage to the waterproof coiled material caused by walking of construction personnel and dropping of tools.
[0012] Further, the concrete eaves and the wall structure of the parapet wall are formed by one-time pouring, which simplifies the construction steps and saves time and cost.
[0013] Further, the protection layer is concrete, which is used to fix the lower part of the prefabricated coiled material protection plate to the waterproof coiled material.
[0014] Further, the corner where the parapet wall and the roof are connected is also provided with a coiled material additional layer on the inner side of the waterproof coiled material.
[0015] Compared with the prior art, the technical scheme has the following beneficial effects:
[0016] 1. The roof parapet wall flooding construction structure fills and bonds the back of the prefabricated coiled material protection plate to the waterproof coiled material through the mortar adhering layer, protects the waterproof coiled material through the prefabricated coiled material protection plate, improves the service life of the waterproof coiled material, adjusts the installation position and verticality of the prefabricated coiled material protection plate, and ensures that the back of the prefabricated coiled material protection plate is more compact.
[0017] 2. The roof parapet wall flooding construction structure sets the concrete eaves on the top of the flooding during the construction of the cast-in-place parapet wall, and the concrete eaves and the parapet wall structure are poured at one time, which can effectively fix the prefabricated coiled material protection plate and facilitate the end of the waterproof coiled material.
[0018] 3. The roof parapet wall flooding construction structure is convenient to install and has high durability, and the lower part of the prefabricated coiled material protection plate is fixed by the concrete protection layer, so that the prefabricated coiled material protection plate is firmly installed. DETAILED DESCRIPTION
[0019] Figure 1 It is a prior art parapet wall flooding structure schematic diagram;
[0020] Figure 2 It is a structure schematic diagram of the utility model;
[0021] Figure 3The utility model discloses waterproofing membrane and the structure schematic diagram of additional layer of membrane.
[0022] In the drawing: 1, parapet wall; 2, roof; 3, waterproofing membrane; 4, mortar sticking layer; 5, prefabricated membrane protection plate; 6, concrete eaves; 7, roof insulation layer; 8, protection layer; 9, membrane additional layer. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.
[0024] Please refer to Figures 1-3 In the embodiment, the waterproofing membrane 3 is laid on the parapet wall 1 and the roof 2, and the prefabricated membrane protection plate 5 is installed on the waterproofing membrane 3 on the parapet wall 1 through the mortar sticking layer 4. The prefabricated membrane protection plate 5 is filled and bonded with the waterproofing membrane 3 behind through the mortar sticking layer 4, the waterproofing membrane 3 is protected through the prefabricated membrane protection plate 5, and the service life of the waterproofing membrane 3 is improved.
[0025] The prefabricated membrane protection plate 5 and the waterproofing membrane 3 are filled and bonded with cement mortar, the installation position and perpendicularity of the prefabricated membrane protection plate 5 can be adjusted, and the back of the prefabricated membrane protection plate 5 can be ensured to be more compact.
[0026] The thickness of the prefabricated membrane protection plate 5 is 12mm, the prefabricated membrane protection plate 5 with certain thickness can effectively resist external mechanical damage, for example, the damage caused by the movement of construction personnel, the falling of tools and the like to the waterproofing membrane 3, and can provide certain buffering effect when the temperature changes or the building structure slightly moves, and reduce the damage of the waterproofing membrane 3 caused by stress concentration.
[0027] In the embodiment, the surface of the parapet wall 1 is provided with the concrete eaves 6, the end of the concrete eaves 6 is bent downward, and the top end of the prefabricated membrane protection plate 5 and the end of the waterproofing membrane 3 extend to the inner side of the bending part of the concrete eaves 6. The waterproofing membrane 3 and the prefabricated membrane protection plate 5 can be effectively fixed through the concrete eaves 6.
[0028] During construction, the concrete eaves 6 and the wall structure of the parapet wall 1 are cast at one time, one-time casting forming can ensure that there is no joint between the concrete eaves 6 and the parapet wall 1, a continuous overall structure is formed, the overall stability and bearing capacity of the structure are improved, and meanwhile, the construction steps are simplified, time and cost are saved.
[0029] In the embodiment, the waterproof coiled material 3 arranged on the roof 2 is paved with a roof insulation layer 7, the roof insulation layer 7 can be used to provide thermal insulation effect and reduce heat loss, the bottom end of the mortar adhesion layer 4 and the prefabricated coiled material protection plate 5 is adhesively connected to the upper surface of the roof insulation layer 7, and the protection layer 8 is further paved on the roof insulation layer 7 and abuts against the outer surface of the lower part of the prefabricated coiled material protection plate 5, the roof insulation layer 7 is protected by the protection layer 8, and the lower part of the prefabricated coiled material protection plate 5 is fixed.
[0030] The protection layer 8 is concrete, a certain thickness of concrete is paved on the roof insulation layer 7, and the lower part of the prefabricated coiled material protection plate 5 is stably arranged on the waterproof coiled material 3 after the concrete is solidified.
[0031] The corner is often a high-risk area of water leakage due to structural deformation, stress concentration and other reasons, further, the coiled material additional layer 9 is further paved on the inner side of the waterproof coiled material 3 at the corner connecting the parapet wall 1 and the roof 2, by increasing the coiled material additional layer 9 at the corner connecting the parapet wall 1 and the roof 2, additional waterproof protection can be provided for the building, and water penetration can be effectively prevented.
[0032] In summary of the above embodiment, the concrete eaves 6 is arranged on the top of the cast-in-place parapet wall 1 during construction, the concrete eaves 6 and the parapet wall 1 are cast at one time, a coiled material additional layer 9 is first paved at the corner between the parapet wall 1 and the roof 2, then the waterproof coiled material 3 is paved, the top end of the waterproof coiled material 3 is extended to the inner side of the bending part of the concrete eaves 6, a roof insulation layer 7 is paved on the surface of the waterproof coiled material 3 arranged on the roof 2, the prefabricated coiled material protection plate 5 is installed on the waterproof coiled material 3 of the parapet wall 1 through the mortar adhesion layer 4, the bottom end of the prefabricated coiled material protection plate 5 abuts against the upper surface of the roof insulation layer 7, the top end of the prefabricated coiled material protection plate 5 is installed to the inner side of the bending part of the concrete eaves 6, and finally a protection layer 8 is paved on the upper surface of the roof insulation layer 7, and the lower part of the prefabricated coiled material protection plate 5 is stably arranged on the waterproof coiled material 3.
[0033] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.
[0034] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.
Claims
1. A flashing structure for a parapet wall of a roof, comprising a waterproofing membrane (3) laid on a parapet wall (1) and a roof (2), characterized in that, The utility model relates to a kind of waterproofing system of roof, including: Preformed sheet protection board (5) is installed on the waterproofing sheet (3) on the parapet (1) by mortar sticking layer (4); Concrete eaves (6) are arranged on the surface of parapet (1), and the end thereof is bent downward, and the top end of preformed sheet protection board (5) and the end of waterproofing sheet (3) extend to the inside of the bending of concrete eaves (6); Roof insulation layer (7) is laid on the waterproofing sheet (3) on roof (2), and the bottom end of mortar sticking layer (4) and preformed sheet protection board (5) is attached to the upper surface of roof insulation layer (7); Protective layer (8) is laid on the surface of roof insulation layer (7), and abuts on the lower outer surface of preformed sheet protection board (5).
2. A construction structure for a flashing of a parapet wall of a roof according to claim 1, characterized in that: The mortar sticking layer (4) is cement mortar, and cement mortar is used to fill and bond between preformed sheet protection board (5) and waterproofing sheet (3).
3. The construction structure of a flashing of a parapet wall of a roof according to claim 1, characterized in that: The thickness of preformed sheet protection board (5) is 12mm.
4. The construction structure for a flashing of a parapet wall of a roof according to claim 1, wherein: The wall structure of concrete eaves (6) and parapet (1) is formed by one-time pouring.
5. The construction structure for a flashing of a parapet wall of a roof according to claim 1, wherein: The protective layer (8) is concrete, which is used to stabilize the lower part of preformed sheet protection board (5) on waterproofing sheet (3).
6. A construction structure for a flashing of a parapet wall of a roof according to claim 1, characterized in that: The corner where parapet (1) and roof (2) are connected is also laid with sheet additional layer (9) inside waterproofing sheet (3).