Waterproofing system for pitched roofs with protruding construction

Abstract

This invention discloses a sloping roof waterproofing system with a protruding structure located between the ridge and eaves of the sloping roof. The system includes a water guide plate installed at the top of the roof, between the ridge and the protruding structure. The water guide plate has a water-guiding part for guiding water flow away from the protruding structure. By installing a water guide plate on the water-facing side of the protruding structure, rainwater flowing down the slope is actively guided to a safe lateral area, preventing water from accumulating at the base of the protruding structure and eliminating the risk of leakage caused by aging or cracking of the sealant.

Description

Technical Field

[0001] This invention relates to the field of roof waterproofing technology, and more specifically to a sloping roof waterproofing system with a prominent structure. Background Technology

[0002] In the metal roofing systems of large public buildings, structures protruding from the roof (such as access panels, pipe sleeves, or equipment bases) are often installed in the middle of the roof for ventilation, exhaust, or maintenance purposes. These protrusions force the metal roof panels, which are originally continuous and slope downhill for drainage, to be cut open in the middle, disrupting the continuity of the roof's water drainage path.

[0003] Current conventional methods typically involve installing flashing at the junction of the protrusion and the roof panel, relying on weather-resistant sealant for sealing. However, metal roof panels experience significant thermal expansion and contraction due to temperature differences. Long-term tensile and compressive stress can easily cause the sealant to crack, age, or even detach. Furthermore, the large amount of rainwater collected at the ridge slows down and accumulates as it flows through openings, meaning even minor sealant defects can lead to serious leaks, damaging interior finishes and causing insulation failure. This method, relying solely on water-blocking, cannot maintain reliable waterproofing throughout the entire lifespan of a metal roof.

[0004] Therefore, to solve the above problems, a sloping roof waterproofing system with a protruding structure is needed to improve rainwater accumulation and impact at the protruding structure, reduce the risk of leakage, and enhance the waterproofing effect at the protruding structure location. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to overcome the defects in the prior art and provide a sloping roof waterproofing system with a protruding structure, which can improve the accumulation and impact of rainwater at the protruding structure, reduce the risk of leakage, and improve the waterproofing effect at the protruding structure location.

[0006] The present invention relates to a sloping roof waterproofing system with a protruding structure, wherein the protruding structure is located between the ridge and the eaves of the sloping roof, and the protruding structure is generally an access port, a pipe sleeve exiting the roof, or an equipment base, etc.

[0007] Furthermore, the sloping roof waterproofing system includes a water guide plate disposed at the top of the roof and located between the ridge and the protruding structure; the water guide plate has a water guiding portion for guiding water flow away from the protruding structure.

[0008] Furthermore, the roof panel is a metal roof panel, which is composed of several metal plate units spliced ​​together. Each metal plate unit includes a plate surface and plate ribs located on both sides of the plate surface. The plate ribs of adjacent metal plate units interlock with each other to form a standing seam.

[0009] Furthermore, the water guide plate is fixed to the roof panel by a non-penetrating connection component.

[0010] Furthermore, the non-penetrating connection component is a wind-resistant clamp with a flat plate support. The wind-resistant clamp is clamped to the upright locking edge of the roof panel, and the water guide plate is fixed to the flat plate support of the wind-resistant clamp.

[0011] Furthermore, the flat plate support has an elongated hole with its major axis aligned with the roof's water flow direction. The water guide plate is bolted to the elongated hole to absorb the roof panel's thermal expansion and contraction in the water flow direction. A waterproof gasket is provided at the connection point where the bolts are located to prevent water from seeping in through the connection.

[0012] Furthermore, the water guide plate extends from the ridge towards the protruding structure, and the starting end of the water guide plate is connected to the bottom of the ridge cover plate.

[0013] Furthermore, a water-stop sealing strip is provided between the starting end of the water guide plate and the ridge cover plate.

[0014] Furthermore, the water guide section protrudes from the side of the water guide plate away from the roof panel.

[0015] Furthermore, the water guide is elongated and extends in the direction of water flow perpendicular to the roof surface, directing the water flow to the roof area without any protruding structures.

[0016] Specifically, the water guiding part is a raised rib extending laterally along the water guiding plate, and the raised rib has a guiding surface facing the roof ridge.

[0017] Furthermore, the lateral width of the water guide is greater than the lateral width of the protruding structure.

[0018] Furthermore, along the direction of water flow on the roof, the water guide plate is provided with several water guiding parts, so that the water guide plate has a corrugated plate shape.

[0019] Furthermore, it also includes a drainage ditch located at the top of the roof and between the water guide plate and the protruding structure, for receiving water flow and directing the water flow to a preset location during use.

[0020] Furthermore, the drainage ditch connects to the water-facing side of the protruding structure and forms a continuous structure.

[0021] Furthermore, the end of the water guide plate is bent downward to form a lower folded edge, and the end edge of the drainage ditch near the water guide plate is bent upward to form an upper folded edge; the lower folded edge overlaps the upper folded edge, so that the water guide plate and the drainage ditch are connected to form a continuous water guiding structure extending from the ridge to the protruding structure.

[0022] Furthermore, the drainage ditch extends laterally along the protruding structure, and both ends of the drainage ditch are connected and respectively located above the corresponding side roof area, discharging the collected water to the roof area without the protruding structure.

[0023] Furthermore, the drainage ditch is a long, open-top trough with a U-shaped cross-section; the back panel of the drainage ditch is hidden inside the decorative surface layer on the outside of the protruding structure.

[0024] Furthermore, the drainage ditch has a first side and a second side. The first side is inserted from bottom to top into the lower end of the water guide plate and overlaps and is fixed thereto. The second side is bent upward and closely attached to the protruding structural base. The height of the second side is higher than the height of the first side.

[0025] Furthermore, the length of the drainage ditch is greater than the lateral width of the protruding structure and not less than the lateral width of the water guiding part.

[0026] Furthermore, the side of the drainage ditch away from the water guide plate is conformed to the water-facing side of the protruding structure, and the bottom surface of the drainage ditch is conformed to the top surface of the roof panel; the drainage ditch is sealed to the protruding structure and the roof panel respectively through the adhesive layer to seal the gap between the drainage ditch and the protruding structure and the roof panel. The adhesive layer is made of structural adhesive.

[0027] The beneficial effects of this invention are as follows: The sloping roof waterproofing system with a protruding structure disclosed in this invention actively guides rainwater flowing down the slope to a safe lateral area by installing a water guide plate on the water-facing side of the protruding structure. This prevents water from accumulating at the base of the protruding structure from the source, eliminating the risk of leakage caused by sealant aging or cracking. Combined with a drainage ditch, it forms a dual defense line of active diversion and passive collection, ensuring orderly drainage even in cases of minor overflow under extreme weather conditions. This significantly improves the system's waterproofing redundancy and overall life-cycle reliability. Simultaneously, the system uses a non-penetrating connection, preserving the original roof waterproofing layer and adapting to the thermal expansion and contraction of metal roofs, ensuring long-term stability. The flexible and adaptable arrangement of the water guide plate and drainage ditch allows for adaptation to different protruding structure sizes and roof conditions, ensuring waterproofing effectiveness while also considering construction convenience and economy, significantly reducing the life-cycle maintenance costs and leakage risks of the protruding structure. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0029] Figure 1 This is a schematic diagram of the structure of the present invention. Detailed Implementation

[0030] Figure 1The figure shows a schematic diagram of the structure of the present invention. The sloping roof waterproofing system with protruding structure 001 in this embodiment is located between the ridge 002 and the eaves of the sloping roof. The protruding structure 001 is generally an access panel, a pipe sleeve exiting the roof, or an equipment base. The sloping roof waterproofing system includes a water guide plate 003 located at the top of the roof, between the ridge 002 and the protruding structure 001. The water guide plate 003 has a water guiding portion for guiding water flow away from the protruding structure 001. The water guide plate 003 can be flexibly arranged; it can be arranged in several spaced intervals between the ridge 002 and the protruding structure 001, or it can be arranged as a continuous whole between the ridge 002 and the protruding structure 001, or it can be arranged independently between the ridge 002 and the protruding structure 001; it is preferable to meet the water guiding requirements under different protruding structure 001 sizes, positions, and roof slope conditions, which will not be elaborated further here. The water guiding section includes elongated strip-shaped structures, staggered water guiding structures, or water guiding structures that intercept and block water in sections. Its specific shape can be a curvature towards the ridge 002, a pointed protrusion / recessed shape, or a strip-shaped structure with a certain slope, all aimed at guiding water flow away from the protruding structure 001. Further details are omitted here. This solution uses the water guiding plate 003 in conjunction with the water guiding section to forcibly guide rainwater naturally flowing down from the ridge 002 to the lateral side of the protruding structure 001, preventing water from directly impacting and converging at the base of the protruding structure 001. This reduces the risk of leakage at the source, achieves active drainage, and significantly improves the long-term waterproofing reliability of the protruding structure 001 on the sloping roof.

[0031] In this embodiment, the water guide plate 003 extends from the ridge 002 towards the protruding structure 001, and the starting end of the water guide plate 003 is connected to the underside of the ridge 002 cover plate. The water guide plate 003 can intercept water flow from the ridge 002, improving the continuity of water diversion and the overall waterproof reliability. At the same time, the starting end of the water guide plate 003 is pressed down by the ridge 002 cover plate, which can prevent water from flowing back from below the starting end of the water guide plate 003. This structure also simplifies the installation process.

[0032] In this embodiment, a water-stop sealing strip is provided between the starting end of the water guide plate 003 and the roof ridge 002 cover plate to reduce the risk of leakage at the connection of the roof ridge 002. The water-stop sealing strip seals the tiny gap between the starting end and the roof ridge 002 cover plate to prevent capillary water from seeping in, and can maintain a seal even in strong winds or water accumulation.

[0033] In this embodiment, the roof panel 004 is a metal roof panel 004, which is composed of several metal profile plate units spliced ​​together. Each metal profile plate unit includes a plate face and plate ribs located on both sides of the plate face. The plate ribs of adjacent metal profile plate units interlock to form a standing seam. This standing seam not only provides a high-strength, natural fixing foundation for subsequent connections without penetrating the roof panel 004, but also allows the plate units to slide relative to each other in the downstream direction, thereby accommodating the thermal expansion and contraction deformation of the metal roof panel 004.

[0034] In this embodiment, the water guide plate 003 is fixed to the roof panel 004 using a non-penetrating connecting component, avoiding damage to the original waterproof layer, preventing new leaks caused by drilling, and facilitating disassembly and maintenance, ensuring that the integrity of the existing waterproof structure is not compromised while adding the water guide structure. Specifically, the non-penetrating connecting component is a wind-resistant clamp with a flat support portion, as used in the prior art. The wind-resistant clamp is held in place by the aforementioned vertical locking edge, and the water guide plate 003 is fixed to the flat support portion of the wind-resistant clamp. Thus, by using the existing vertical locking edge to install the wind-resistant clamp, the wind resistance of the roof panel 004 is enhanced, and a stable mounting surface is provided for the water guide plate 003, maintaining an appropriate distance between the water guide plate 003 and the roof panel 004 to prevent water accumulation. At the same time, the cooperation between the wind-resistant clamp and the vertical locking edge achieves a dual synergistic effect of structural reinforcement and water guide plate 003 fixation.

[0035] In addition, the water guide plate 003 is a metal plate that matches the material of the metal roof, which can effectively reduce temperature stress differences, extend the service life of the system, and maintain the consistency of the roof system.

[0036] In this embodiment, the flat plate support has an elongated hole with its major axis aligned with the roof's water flow direction. The water guide plate 003 is connected to the elongated hole via bolts and a waterproof gasket. This design allows the water guide plate 003 and the roof panel 004 to slide relative to each other in the water flow direction, absorbing thermal expansion and contraction, while the waterproof gasket seals the connection joint, preventing rainwater infiltration and achieving a dynamic seal. This significantly improves the long-term reliability of the connection under temperature variations.

[0037] In this embodiment, the water guiding part protrudes from the side of the water guiding plate 003 away from the roof panel 004, forming a physical water barrier to force the water flow to change direction and prevent the water flow from directly passing over the water guiding plate 003 and impacting the protruding structure 001.

[0038] In this embodiment, the water guide is elongated and extends perpendicular to the roof surface in the direction of water flow, covering the water collection width above the protruding structure 001. It directs the water flow to the roof area without the protruding structure 001, preventing water accumulation at the protruding structure 001 location. Specifically, the water guide is a raised rib extending laterally along the water guide plate 003, with a guiding surface facing the roof ridge 002. The guiding surface can be inclined or curved, smoothly guiding the water flow, reducing impact and splashing, improving flow efficiency, and is simple in structure and easy to manufacture.

[0039] In this embodiment, the lateral width of the water guide is greater than the lateral width of the protruding structure 001. This completely covers the lateral projection range of the protruding structure 001, preventing water flow from bypassing and impacting it from both ends, avoiding side leakage, and forming a complete water barrier. Even with slight installation deviations in the water guide, the width redundancy still ensures effective coverage. Furthermore, downward-facing flanges or guide fins can be provided at both ends of the water guide to further guide the water flow away from the sides of the protruding structure 001, completely blocking the path of water flow to the root of the protruding structure 001 and improving waterproof reliability.

[0040] In this embodiment, the water guide plate 003 is provided with several water guiding sections along the water flow direction on the roof, making the water guide plate 003 a corrugated plate. In this solution, the water guide plate is integrally bent to form a corrugated structure. Multiple water guiding sections form multiple interceptions, so even if a small amount of water flows over the previous layer, subsequent water can still be intercepted, improving waterproof redundancy. The corrugated troughs form natural drainage channels, working together with the water guiding sections to achieve the dual functions of guiding and draining, orderly guiding the water flow to a safe lateral area and avoiding local water accumulation. At the same time, the corrugated structure enhances the rigidity of the plate surface, can resist wind pressure and snow loads, improves overall stability, and enables the system to maintain reliable water guiding performance even in extreme weather conditions.

[0041] In this embodiment, a drainage ditch 005 is also included, located on the top of the roof between the water guide plate 003 and the protruding structure 001, for receiving water flow and directing it to a preset position during use. The drainage ditch 005 serves as a second line of defense, forming a dual-insurance system with the water guide plate 003, preventing water flow from contacting the base of the protruding structure 001.

[0042] In this embodiment, the drainage ditch 005 is connected to the water-facing side of the protruding structure 001 and forms a continuous structure, eliminating the gap between the two, so that water can only enter the drainage ditch 005 and cannot bypass it, thereby improving the sealing performance of the root of the protruding structure 001.

[0043] In this embodiment, the end of the water guide plate 003 is bent downwards to form a lower folded edge, and the end edge of the drainage ditch 005 near the water guide plate 003 is bent upwards to form an upper folded edge. The lower folded edge overlaps with the upper folded edge, connecting the water guide plate 003 and the drainage ditch 005 to form a continuous water guiding structure extending from the roof ridge 002 to the protruding structure 001. The lower and upper folded edges can be sealed with sealant or other sealing methods, which will not be elaborated here. The water guide plate 003 and the drainage ditch 005 are connected as one unit through the overlapping folded edges, allowing water to seamlessly transition from the water guide plate 003 to the drainage ditch 005, preventing water from falling, splashing, or seeping into gaps. The continuous water guiding structure ensures the entire water flow from the roof ridge 002 to the protruding structure 001, forming a complete water guiding path.

[0044] In this embodiment, the drainage ditch 005 extends laterally along the protruding structure 001, and both ends of the drainage ditch 005 are connected and respectively located above the corresponding side roof area, so as to discharge the collected water to the roof area where the protruding structure 001 is not provided, thereby avoiding water accumulation in the drainage ditch 005.

[0045] In this embodiment, the drainage ditch 005 and the water guide plate 003 are made of the same material and are integrally bent. The drainage ditch 005 is a long trough with an open top and a U-shaped cross-section. It has sufficient flow capacity and drainage ability. The side of the drainage ditch 005 away from the water guide plate 003 is hidden inside the decorative surface layer on the outside of the protruding structure 001, so that the drainage ditch 005 is not exposed, maintaining the aesthetics of the building. At the same time, the decorative surface layer protects the drainage ditch 005.

[0046] In this embodiment, the drainage ditch 005 has a first side and a second side. The first side is inserted from bottom to top into the lower end of the water guide plate 003 and overlaps and is fixed thereto. The fixation is reliable and does not form a water-facing gap. The second side is bent upward and closely attached to the base of the protruding structure 001. The height of the second side is higher than the height of the first side, forming a water-blocking height difference to prevent water from flowing over the second side and entering the root of the protruding structure 001.

[0047] In this embodiment, the length of the drainage ditch 005 is greater than the lateral width of the protruding structure 001 and not less than the lateral width of the water guiding part. This ensures that the drainage ditch 005 completely covers the water collection area of ​​the protruding structure 001, guaranteeing that all water flow guided by the water guiding part is received by the drainage ditch 005, thus improving protection.

[0048] In this embodiment, the side of the drainage ditch 005 facing away from the water guide plate 003 is conformed to the water-facing side of the protruding structure 001, and the bottom surface of the drainage ditch 005 is conformed to the top surface of the roof panel 004. The drainage ditch 005 is sealed to the protruding structure 001 and the roof panel 004 respectively through an adhesive layer to seal the gaps between the drainage ditch 005 and the protruding structure 001 and the roof panel 004. The adhesive layer is a structural adhesive. The drainage ditch 005 is completely bonded to the protruding structure 001 and the roof panel 004, forming a reliable bottom seal with the structural adhesive, eliminating side and bottom seepage channels. This ensures that the integrity of the existing waterproof structure is not compromised while adding the water guide structure. The structural adhesive has good weather resistance, providing long-term adhesion, making the drainage ditch 005 an integral part of the surrounding structure, improving the system's durability and long-term waterproof reliability.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A sloping roof waterproofing system with a protruding structure, wherein the protruding structure is located between the ridge and the eaves of the sloping roof, characterized in that: It includes a water guide plate disposed at the top of the roof and located between the ridge and the protruding structure; the water guide plate has a water guiding section for guiding water flow away from the protruding structure.

2. The sloping roof waterproofing system with a protruding structure according to claim 1, characterized in that: It also includes a drainage ditch located on the top of the roof, between the water guide plate and the protruding structure, for receiving water flow and directing the water flow to a preset location during use.

3. The sloping roof waterproofing system with a protruding structure according to claim 2, characterized in that: The water guide plate extends from the ridge towards the protruding structure, and the starting end of the water guide plate is connected to the bottom of the ridge cover plate.

4. The sloping roof waterproofing system with a protruding structure according to claim 3, characterized in that: The drainage ditch connects to the water-facing side of the protruding structure and forms a continuous structure.

5. The sloping roof waterproofing system with a protruding structure according to claim 4, characterized in that: The end of the water guide plate is bent downward to form a lower folded edge, and the end edge of the drainage ditch near the water guide plate is bent upward to form an upper folded edge; the lower folded edge overlaps the upper folded edge, so that the water guide plate and the drainage ditch are connected to form a continuous water guide structure extending from the ridge to the protruding structure.

6. The sloping roof waterproofing system with a protruding structure according to claim 1, characterized in that: The water guide section protrudes from the side of the water guide plate away from the roof panel.

7. The sloping roof waterproofing system with a protruding structure according to claim 6, characterized in that: The water guide section is elongated and extends in the direction of water flow perpendicular to the roof surface.

8. The sloping roof waterproofing system with a protruding structure according to claim 7, characterized in that: Along the direction of water flow on the roof, the water guide plate is provided with several water guiding parts.

9. The sloping roof waterproofing system with a protruding structure according to claim 1, characterized in that: The water guide plate is fixed to the roof panel by a non-penetrating connection component.

10. The sloping roof waterproofing system with a protruding structure according to claim 2, characterized in that: The side of the drainage ditch away from the water guide plate is conformed to the water-facing side of the protruding structure and is sealed and connected by an adhesive layer.

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