A steep slope roof waterproofing system

Abstract

This utility model relates to the field of building construction technology, and provides a waterproofing system for steeply pitched roofs. The system includes a base steel plate, an outer decorative panel, a vapor barrier, an insulation layer, a first waterproof membrane layer, and a second waterproof membrane layer. The first waterproof membrane layer is formed by overlapping and welding multiple first waterproof membranes together. At the overlap edge of two adjacent first waterproof membranes, the lower first waterproof membrane is fixed by a perforation process, and the other first waterproof membrane covers the perforated area and is welded to the upper surface of the previous first waterproof membrane. The second waterproof membrane layer is bonded to the side of the first waterproof membrane layer facing away from the insulation layer. The first and second waterproof membranes are laid in a staggered manner, and the second waterproof membrane layer is formed by overlapping and welding multiple second waterproof membranes together. This application effectively reduces the risk of leakage and integrates waterproofing into a unified whole, improving the waterproofing performance of the building.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a waterproofing system for steep roof slopes. Background Technology

[0002] Large public buildings are generally designed with a certain degree of artistry and aesthetic appeal, thus often requiring unique structural features such as large spans, large curves, or steeply pitched roofs. For enhanced overall aesthetics, these public buildings typically use aluminum-magnesium-manganese panels as the outermost decorative layer, requiring a waterproof membrane to be installed between the two metal panels. Traditionally, this is done by securing the membrane to purlins using brackets, and then mounting the outer decorative metal panel on top of the brackets. However, this method involves the brackets penetrating the waterproof membrane, resulting in poor sealing at the junction and a potential for leakage.

[0003] Furthermore, when constructing waterproof membranes for the roofs of large public buildings with steep slopes, the membranes are prone to displacement or sliding if special construction techniques are not adopted. This can lead to issues such as misalignment during membrane laying and insufficient overlap width during welding. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings and deficiencies of existing technologies by providing a large-slope roof waterproofing system that effectively reduces the risk of leakage while integrating waterproofing into a unified whole, thereby improving the waterproofing performance of the building.

[0005] This utility model provides a waterproofing system for steeply sloped roofs, comprising:

[0006] The bottom steel plate is designed with a large slope.

[0007] An outer decorative panel, wherein the outer decorative panel is spaced apart above the bottom steel plate;

[0008] A vapor barrier layer is laid on the upper surface of the bottom steel plate;

[0009] The insulation layer is laid on the side of the vapor barrier layer away from the bottom steel plate, and the insulation layer is connected and fixed to the bottom steel plate by non-perforated fasteners.

[0010] The first waterproof membrane layer is laid on the side of the insulation layer away from the vapor barrier layer. The first waterproof membrane layer is connected and fixed to the non-perforated fastener by welding with a non-perforated gasket. The first waterproof membrane layer is formed by welding multiple first waterproof membranes together. At the overlapping edge of two adjacent first waterproof membranes, the lower first waterproof membrane is fixed by a perforation process, and the other first waterproof membrane covers the perforated part and is welded to the upper surface of the previous first waterproof membrane.

[0011] The second waterproof membrane layer is bonded to the side of the first waterproof membrane layer away from the insulation layer. The first and second waterproof membranes are laid in a staggered manner. The second waterproof membrane layer is formed by welding together multiple overlapping layers.

[0012] According to the present invention, a large-slope roof waterproofing system is provided in which the overlapping edges of two adjacent first waterproof membranes are fixed by welding.

[0013] The overlapping edges of two adjacent second waterproof membranes are fixed by welding.

[0014] According to the present invention, a high-slope roof waterproofing system further includes a circular pipe support, which is supported and connected between the bottom steel plate and the outer decorative panel. The circular pipe support includes a steel pipe column, an upper waterproof membrane sleeve, a lower waterproof membrane sleeve, and multiple clamps. The lower waterproof membrane sleeve is fitted onto the steel pipe column, and the lower end of the lower waterproof membrane sleeve fits inside the opening end of the second waterproof membrane layer corresponding to the steel pipe column, and is welded to the second waterproof membrane layer. The upper waterproof membrane sleeve is fitted outside the lower waterproof membrane sleeve, and the upper and lower ends of the upper waterproof membrane sleeve fit inside the upper and lower ends of the lower waterproof membrane sleeve, and the lower end of the upper waterproof membrane sleeve is welded to the second waterproof membrane layer. The multiple clamps respectively fasten the upper waterproof membrane sleeve and the lower waterproof membrane sleeve to the steel pipe column.

[0015] According to the present invention, a large-slope roof waterproofing system is provided, wherein the circular pipe support further includes a stainless steel plate sleeve, the stainless steel plate sleeve is placed on the outside of the upper waterproof membrane sleeve, and the upper and lower ends of the stainless steel plate sleeve are placed inside the upper and lower ends of the upper waterproof membrane sleeve, and the stainless steel plate sleeve is fastened to the steel pipe column by the clamp.

[0016] According to the present invention, a large slope roof waterproofing system is provided, wherein the openings at the upper and lower ends of the stainless steel plate sleeve are respectively sealed and connected to the steel pipe column and the second waterproof membrane layer by weather-resistant sealant.

[0017] The upper end of the upper waterproof membrane sleeve is sealed to the steel pipe column by weather-resistant sealant;

[0018] The upper end of the lower waterproof membrane sleeve is sealed to the steel pipe column using weather-resistant sealant.

[0019] According to the present invention, a waterproofing system for a steep roof is provided, wherein butyl sealant is wrapped around the outer wall of the steel pipe column at the position opposite to the insulation layer.

[0020] According to the present invention, a waterproofing system for a steep roof is provided, wherein the insulation layer is a multi-layer rock wool insulation layer.

[0021] According to the present invention, a large-slope roof waterproofing system is provided, wherein the multi-layer rock wool insulation layer includes at least a first layer of insulation rock wool and a second layer of insulation rock wool. The first layer of insulation rock wool is laid on the upper surface of the vapor barrier, and the second layer of insulation rock wool is laid on the side of the first layer of insulation rock wool away from the vapor barrier.

[0022] According to the present invention, a waterproofing system for a steep roof also includes a non-woven fabric layer, which is disposed between the bottom steel plate and the vapor barrier.

[0023] According to the present invention, a waterproofing system for a steep roof is provided, wherein the bottom steel plate is an aluminum-zinc coated profiled steel plate.

[0024] This utility model provides a waterproofing system for steep roof slopes. It employs two fixing methods: first, a non-perforated gasket is used to secure the first waterproof membrane layer, and then membrane fasteners are used to secure it at the overlap edges. These two methods enhance the fixation, enabling it to adapt to steep roof slopes. Furthermore, the composite structure of the double-layer waterproof membrane and the staggered installation design reduce the possibility of rainwater seepage through the overlaps, and a full-adhesion process forms a unified waterproof layer. The non-perforated welding process avoids the damage to the waterproof membrane caused by traditional perforated fixing methods, reducing the risk of leakage. The synergistic effect of the multi-layer structure not only improves thermal insulation performance but also significantly enhances waterproofing performance through the composite construction of the double-layer waterproof membrane. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a structural schematic diagram of the high-slope roof waterproofing system provided by this utility model.

[0027] Figure 2 yes Figure 1 A schematic diagram showing the connection between the first and second waterproof membrane layers.

[0028] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0029] Figure 4 This is a structural schematic diagram of the circular tube support component provided by this utility model.

[0030] Figure label:

[0031] 10. Waterproofing system for steeply pitched roofs;

[0032] 100. Bottom steel plate;

[0033] 200. Outer decorative panel;

[0034] 300. Round pipe support; 310. Steel pipe column; 320. Upper waterproof membrane sleeve; 330. Lower waterproof membrane sleeve; 340. Hoop; 350. Stainless steel plate sleeve; 360. Weather-resistant sealant; 370. Butyl sealant;

[0035] 400. Vapor barrier;

[0036] 500, Insulation layer; 510, First layer of insulation rock wool layer; 520, Second layer of insulation rock wool layer;

[0037] 600, First waterproof membrane layer; 610, First waterproof membrane;

[0038] 700, Second waterproof membrane layer; 710, Second waterproof membrane;

[0039] 800. Roll material fastener; 810. Non-perforated fastener; 820. Non-perforated gasket;

[0040] 900. Weld seam. Detailed Implementation

[0041] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0042] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0044] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] The following is combined Figures 1 to 4 The present invention will provide a detailed description of the high-slope roof waterproofing system provided by the present invention through specific embodiments and application scenarios.

[0047] In the embodiments of this utility model, such as Figures 1 to 3 As shown, the steep slope roof waterproofing system 10 includes a bottom steel plate 100, an outer decorative panel 200, a vapor barrier 400, an insulation layer 500, a first waterproof membrane layer 600, and a second waterproof membrane layer 700. The bottom steel plate 100 is arranged with a steep slope. The outer decorative panels 200 are spaced apart above the bottom steel plate 100. The vapor barrier 400 is laid on the upper surface of the bottom steel plate 100. The insulation layer 500 is laid on the side of the vapor barrier 400 away from the bottom steel plate 100 and is connected and fixed to the bottom steel plate 100 by a non-perforated fastener 810. The first waterproof membrane layer 600 is laid on the side of the insulation layer 500 away from the vapor barrier 400 and is connected and fixed to the bottom steel plate 100 by a non-perforated fastener 810. The first waterproof membrane layer 600 is formed by welding multiple first waterproof membranes 610 together and then welding them together. At the overlapping edge of two adjacent first waterproof membranes 610, the lower first waterproof membrane 610 is fixed by a perforation process, and the other first waterproof membrane 610 covers the perforated part and is welded to the upper surface of the previous first waterproof membrane 610. The second waterproof membrane layer 700 is bonded to the side of the first waterproof membrane layer 600 away from the insulation layer 500. The first waterproof membranes 610 and the second waterproof membranes 710 are laid in a staggered manner. The second waterproof membrane layer 700 is formed by welding multiple second waterproof membranes 710 together and then welding them together.

[0048] The bottom steel plate 100 serves as the foundational structural layer of the entire roof waterproofing system, providing a solid support platform for subsequent layers. Its steep slope is designed to meet specific architectural requirements, such as drainage. The steep slope facilitates rapid rainwater drainage from the roof, reducing the time rainwater accumulates and thus lowering the risk of roof leaks.

[0049] The outer decorative panel 200 is an important component of the building's appearance. By selecting different materials, colors, and textures, the overall aesthetics of the building can be enhanced, making it more personalized and attractive. It provides an extra layer of physical protection for the roofing system, resisting damage to the internal waterproofing and insulation layers 500 from ultraviolet rays, wind and rain erosion, and external impacts, thus extending the service life of the roofing system.

[0050] The primary function of the vapor barrier 400 is to prevent indoor water vapor from penetrating into the insulation layer 500. Due to the temperature difference between indoors and outdoors, indoor water vapor will diffuse towards the cooler insulation layer 500. If the insulation layer 500 absorbs too much water vapor, its insulation performance will decrease, and it may even lead to mold growth. The vapor barrier 400 effectively blocks the penetration path of water vapor, protecting the performance of the insulation layer 500. Protecting the insulation layer 500 also prevents water vapor from entering and avoids expansion and deformation due to moisture, thus protecting the structural integrity of the entire roofing system.

[0051] The insulation layer 500 uses high-efficiency insulation materials, such as rock wool, which can effectively reduce the transfer of heat between indoors and outdoors. In winter, it can prevent indoor heat from escaping and keep the interior warm; in summer, it can block outdoor heat from entering the interior, lowering the indoor temperature, thereby improving the building's energy efficiency and reducing energy consumption. The insulation layer 500 can be connected and fixed to the underlying steel plate 100 using non-perforated fasteners 810.

[0052] The first waterproof membrane layer 600 is part of the roof waterproofing system to prevent rainwater from penetrating into the insulation layer 500 and the bottom steel plate 100, thus avoiding damage to the building structure.

[0053] The first waterproof membrane layer 600 is first welded to the first waterproof membrane layer 600 by the non-perforated fastener 810 on the insulation layer 500 using a non-perforated welding machine. Then, the membrane fastener 800 is fixedly installed at the overlap of the membrane. Then, the next roll of the first waterproof membrane layer 600 covers the membrane fastener 800 and is welded by a hot air welding machine.

[0054] Multiple first waterproof membranes 610 are overlapped and then welded together. This connection method can ensure a tight bond between the membranes, forming a continuous and seamless waterproof layer, which effectively improves waterproof performance and reduces the risk of leakage.

[0055] At the overlap of two adjacent first waterproof membranes 610, the lower first waterproof membrane 610 is secured using a membrane fastener 800 and a perforation process. This ensures that the membrane will not shift during construction and use, guaranteeing the stability of the waterproof layer. Although perforation may cause some damage to the membrane, this defect can be effectively compensated for by having another first waterproof membrane 610 cover the perforated area and welded to the upper surface of the previous first waterproof membrane 610, thus ensuring the waterproofing effect.

[0056] The second waterproof membrane layer 700 and the first waterproof membrane layer 600 together form a double-layer waterproof structure. The first waterproof membrane 610 and the second waterproof membrane 710 are laid with staggered joints to avoid overlapping at the same location. This laying method prevents rainwater from continuously penetrating along the vertical overlap joints. When rainwater comes into contact with the overlap joint of the first membrane layer, the staggered coverage of the second membrane layer forces it to bypass the second membrane layer's overlap joint before it can continue to penetrate. Furthermore, the second membrane layer's overlap joint is welded, providing excellent sealing and effectively reducing the possibility of rainwater penetration through the overlap joint. The second waterproof membrane layer 700 is fixed to the first waterproof membrane layer 600 by adhesive bonding. This bonding method ensures a tight bond between the two membrane layers, enhancing the overall integrity of the waterproof layer and preventing a decrease in waterproof performance due to interlayer separation. Simultaneously, the overlapping and welding of multiple second waterproof membrane layers 710 further guarantees the waterproof performance of the second waterproof membrane layer 700 itself.

[0057] This application employs two fixing methods to strengthen the fixation: first, a non-perforated gasket 820 is used to secure the first waterproof membrane layer 600, and then a membrane fastener 800 is used to fix it at the overlap edge of the first waterproof membrane layer 600. This dual-fixing method allows it to adapt to roofs with steep slopes. Furthermore, the composite structure of the double-layer waterproof membrane and the staggered joint design reduce the possibility of rainwater seepage through the overlap joints, and a full-adhesion process forms a unified waterproof layer. The non-perforated welding process avoids the damage to the waterproof membrane caused by traditional perforated fixing methods, reducing the risk of leakage. The synergistic effect of the multi-layer structure not only improves thermal insulation performance but also significantly enhances waterproof performance through the composite construction of the double-layer waterproof membrane.

[0058] Reference Figure 3 According to the present invention, a large-slope roof waterproofing system 10 is provided in which the overlapping edges of two adjacent first waterproof membranes 610 are fixed by welding; the overlapping edges of two adjacent second waterproof membranes 710 are fixed by welding.

[0059] Understandably, by welding the overlapping edges of adjacent first waterproof membrane 610 or second waterproof membrane 710 together to form a weld 900, a tight, continuous connection can be formed between the membranes, eliminating interlayer gaps. Rainwater cannot penetrate through these welded areas, thus ensuring that the entire waterproof layer has good waterproof performance and effectively preventing rainwater from intruding into the building's interior.

[0060] Reference Figure 4 According to the present invention, a large-slope roof waterproofing system 10 further includes a circular pipe support 300, which is supported and connected between the bottom steel plate 100 and the outer decorative plate 200. The circular pipe support 300 includes a steel pipe column 310, an upper waterproof membrane sleeve 320, a lower waterproof membrane sleeve 330, and multiple clamps 340. The lower waterproof membrane sleeve 330 is fitted onto the steel pipe column 310, and the lower end of the lower waterproof membrane sleeve 330 connects the second waterproof membrane layer 700 to the steel pipe column 310. The open end of 10 is fitted inside it and welded to the second waterproof membrane layer 700; the upper waterproof membrane sleeve 320 is fitted outside the lower waterproof membrane sleeve 330, and the upper and lower ends of the upper waterproof membrane sleeve 320 fit inside the upper and lower ends of the lower waterproof membrane sleeve 330; the lower end of the upper waterproof membrane sleeve 320 is welded to the second waterproof membrane layer 700; multiple clamps 340 respectively fasten the upper waterproof membrane sleeve 320 and the lower waterproof membrane sleeve 330 to the steel pipe column 310.

[0061] Understandably, the circular tube support 300 serves to connect the bottom steel plate 100 and the outer decorative panel 200, forming a stable overall structure. It can bear the weight of the outer decorative panel 200 and evenly transfer it to the bottom steel plate 100, ensuring the structural stability of the roof system. By appropriately setting the spacing and height of the circular tube support 300, the distance between the outer decorative panel 200 and the bottom steel plate 100 can be adjusted to meet different design requirements, while also providing sufficient space for the construction of the waterproofing layer and insulation layer 500.

[0062] The steel pipe column 310 serves as the basic structure of the round pipe support 300, providing solid support for the entire support system.

[0063] The lower end of the lower waterproof membrane sleeve 330 is fitted inside the open end of the second waterproof membrane layer 700 corresponding to the steel pipe column 310, and welded to the second waterproof membrane layer 700. This design effectively prevents rainwater from seeping into the roof from the junction of the steel pipe column 310 and the second waterproof membrane layer 700, ensuring the integrity of the roof waterproofing system. The welded connection creates a tight seal between the lower waterproof membrane sleeve 330 and the second waterproof membrane layer 700, enhancing the waterproofing effect.

[0064] The upper waterproof membrane sleeve 320 sets work together with the lower waterproof membrane sleeve 330 to form a multi-layer waterproof barrier, further enhancing the waterproof performance.

[0065] Multiple clamps 340 secure the upper waterproof membrane sleeve 320 and the lower waterproof membrane sleeve 330 to the steel pipe column 310, ensuring a tight connection between the components. Through the tightening action of the clamps 340, the upper waterproof membrane sleeve 320, the lower waterproof membrane sleeve 330, and the steel pipe column 310 form an organic whole, enhancing the structural strength of the entire circular pipe support 300 and preventing loosening or separation under external forces.

[0066] This embodiment significantly enhances the seal between the waterproof membrane and the steel pipe column 310 through double protection of the lower and upper waterproof membrane sleeves 320 and welding fixation, reducing the possibility of rainwater penetration. Furthermore, the double sleeve design and multiple sealing measures (such as welding and clamping 340) provide additional waterproofing protection, further improving the waterproofing performance and reliability of the entire roofing system.

[0067] Reference Figure 4 According to the present invention, a large-slope roof waterproofing system 10 is provided, and the round pipe support 300 further includes a stainless steel plate sleeve 350. The stainless steel plate sleeve 350 is placed on the outside of the upper waterproof membrane sleeve 320, and the upper and lower ends of the stainless steel plate sleeve 350 are placed inside the upper and lower ends of the upper waterproof membrane sleeve 320. The stainless steel plate sleeve 350 is fastened to the steel pipe column 310 by a clamp 340.

[0068] Understandably, the 350 stainless steel sleeve serves as the outermost protective layer, covering the outside of all waterproofing sleeves. Its primary function is to protect the inner waterproofing membrane sleeves from mechanical damage. On steeply pitched roofs, the waterproofing layer is susceptible to physical damage due to construction, maintenance, or external factors (such as hail, human impact, etc.). Stainless steel, with its excellent impact and abrasion resistance, provides a robust barrier for the waterproofing layer.

[0069] Reference Figure 4 According to the present invention, a large-slope roof waterproofing system 10 is provided, wherein the openings at the upper and lower ends of the stainless steel plate sleeve 350 are respectively sealed and connected to the steel pipe column 310 and the second waterproof membrane layer 700 by weather-resistant sealant 360; the upper end of the upper waterproof membrane sleeve 320 is sealed and connected to the steel pipe column 310 by weather-resistant sealant 360; and the upper end of the lower waterproof membrane sleeve 330 is sealed and connected to the steel pipe column 310 by weather-resistant sealant 360.

[0070] Understandably, the weather-resistant sealant 360 effectively fills the tiny gaps between the sleeve, the steel pipe column 310, and the waterproof membrane layer, preventing rainwater and moisture penetration and further enhancing the waterproof performance.

[0071] Reference Figure 4 According to the present invention, a large-slope roof waterproofing system 10 is provided, wherein butyl sealant 370 is wrapped around the outer wall of the steel pipe column 310 at the position opposite to the insulation layer 500.

[0072] It is understandable that there may be minor gaps or irregular openings between the steel pipe column 310 and the insulation layer 500. Butyl sealant 370 is a sealing material with good adhesion and elasticity. It can fill these gaps to form a continuous sealing layer, effectively preventing rainwater or other liquids from seeping between the insulation layer 500 and the structural layer, further enhancing the waterproof performance.

[0073] Reference Figure 1 According to the present invention, a large-slope roof waterproofing system 10 is provided, wherein the insulation layer 500 is a multi-layer rock wool insulation layer 500.

[0074] It is understandable that this embodiment improves the thermal insulation performance of the roof system, reduces the building's energy consumption, and enhances the insulation performance by using a multi-layer rock wool insulation layer 500.

[0075] Reference Figure 1 According to the present invention, a large-slope roof waterproofing system 10 is provided, wherein the multi-layer rock wool insulation layer 500 includes at least a first layer of insulation rock wool layer 510 and a second layer of insulation rock wool layer 520. The first layer of insulation rock wool layer 510 is laid on the upper surface of the vapor barrier layer 400, and the second layer of insulation rock wool layer 520 is laid on the side of the first layer of insulation rock wool layer 510 away from the vapor barrier layer 400.

[0076] It is understandable that by stacking the first layer of insulating rock wool 510 and the second layer of insulating rock wool 520, heat transfer can be further reduced and the insulation effect can be improved.

[0077] In some embodiments, the high-slope roof waterproofing system 10 further includes a non-woven fabric layer disposed between the bottom steel plate 100 and the vapor barrier 400.

[0078] Understandably, non-woven fabric is a type of nonwoven material with a certain thickness and flexibility. Placing it between the bottom steel plate 100 and the vapor barrier layer 400 can act as a buffer, preventing burrs, welds, or other sharp objects on the bottom steel plate 100 from damaging the vapor barrier layer 400. The non-woven fabric can also distribute stress, preventing the vapor barrier layer 400 from breaking due to excessive localized stress during construction or use.

[0079] In some embodiments, the bottom steel plate 100 is an aluminum-zinc coated profiled steel plate.

[0080] It is understood that by using aluminum-zinc coated profiled steel sheet as the bottom steel sheet 100, this embodiment improves the structural strength and corrosion resistance of the roofing system, and reduces the weight and cost of the roofing system.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A steep slope roofing waterproofing system characterized by, include: The bottom steel plate is designed with a large slope. An outer decorative panel, wherein the outer decorative panel is spaced apart above the bottom steel plate; A vapor barrier layer is laid on the upper surface of the bottom steel plate; The insulation layer is laid on the side of the vapor barrier layer away from the bottom steel plate, and the insulation layer is connected and fixed to the bottom steel plate by non-perforated fasteners. The first waterproof membrane layer is laid on the side of the insulation layer away from the vapor barrier layer. The first waterproof membrane layer is connected and fixed to the non-perforated fastener by welding with a non-perforated gasket. The first waterproof membrane layer is formed by welding multiple first waterproof membranes together. At the overlapping edge of two adjacent first waterproof membranes, the lower first waterproof membrane is fixed by a perforation process, and the other first waterproof membrane covers the perforated part and is welded to the upper surface of the previous first waterproof membrane. The second waterproof membrane layer is bonded to the side of the first waterproof membrane layer away from the insulation layer. The first and second waterproof membranes are laid in a staggered manner. The second waterproof membrane layer is formed by welding together multiple overlapping layers.

2. The steep slope waterproofing system set forth in claim 1, wherein, The overlapping edges of two adjacent first waterproof membranes are fixed by welding; The overlapping edges of two adjacent second waterproof membranes are fixed by welding.

3. The steep slope waterproofing system set forth in claim 1, wherein, It also includes a circular tube support component, which supports and connects the bottom steel plate and the outer decorative panel. The circular tube support component includes a steel pipe column, an upper waterproof membrane sleeve, a lower waterproof membrane sleeve, and multiple clamps. The lower waterproof membrane sleeve is fitted onto the steel pipe column, and the lower end of the lower waterproof membrane sleeve fits inside the opening end of the second waterproof membrane layer corresponding to the steel pipe column, and is welded to the second waterproof membrane layer. The upper waterproof membrane sleeve is fitted outside the lower waterproof membrane sleeve, and the upper and lower ends of the upper waterproof membrane sleeve fit inside the upper and lower ends of the lower waterproof membrane sleeve, and the lower end of the upper waterproof membrane sleeve is welded to the second waterproof membrane layer. The multiple clamps respectively fasten the upper waterproof membrane sleeve and the lower waterproof membrane sleeve to the steel pipe column.

4. The steep slope waterproofing system set forth in claim 3, wherein, The circular tube support also includes a stainless steel plate sleeve, which is placed on the outside of the upper waterproof membrane sleeve, and the upper and lower ends of the stainless steel plate sleeve are placed inside the upper and lower ends of the upper waterproof membrane sleeve. The stainless steel plate sleeve is fastened to the steel pipe column by the clamp.

5. The steep slope waterproofing system set forth in claim 4, wherein, The openings at the upper and lower ends of the stainless steel plate sleeve are respectively sealed and connected to the steel pipe column and the second waterproof membrane layer with weather-resistant sealant. The upper end of the upper waterproof membrane sleeve is sealed to the steel pipe column by weather-resistant sealant; The upper end of the lower waterproof membrane sleeve is sealed to the steel pipe column using weather-resistant sealant.

6. The steep slope waterproofing system set forth in claim 3, wherein, Butyl sealant is wrapped around the outer wall of the steel pipe column at the position opposite to the insulation layer.

7. The steep roof waterproofing system according to any of claims 1-6, characterized in that The insulation layer is a multi-layer rock wool insulation layer.

8. The steep slope waterproofing system set forth in claim 7, wherein, The multi-layer rock wool insulation layer includes at least a first layer of insulating rock wool and a second layer of insulating rock wool. The first layer of insulating rock wool is laid on the upper surface of the vapor barrier, and the second layer of insulating rock wool is laid on the side of the first layer of insulating rock wool away from the vapor barrier.

9. The steep roof waterproofing system according to any one of claims 1-6, wherein, It also includes a non-woven fabric layer, which is disposed between the bottom steel plate and the vapor barrier.

10. The steep roof waterproofing system according to any one of claims 1-6, wherein, The bottom steel plate is an aluminum-zinc coated profiled steel plate.

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