A reinforced waterproof structure of roof TPO coiled material heat preservation and steam prevention
By using aluminum foil-modified bitumen self-adhesive waterproof vapor barrier membrane and centrifugal glass wool strips at the overlap of TPO roofing membranes, the problems of weak wind uplift resistance of the membranes and poor adhesion of the vapor barrier membrane were solved, forming a continuous thermal insulation and waterproof barrier, thus improving the overall performance and construction efficiency of the roofing system.
Patent Information
- Application Number
- CN202521740919.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-15
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-15
AI Technical Summary
Existing TPO roofing membranes have weak wind uplift resistance at the overlap points, and the PE vapor barrier cannot fully adhere to the profiled steel sheet, leading to moisture accumulation and damage to the roof structure.
A self-adhesive waterproof vapor barrier membrane made of aluminum foil modified bitumen is tightly bonded to the profiled steel sheet, and centrifugal glass wool strips are filled in the troughs to enhance the vapor barrier effect. At the same time, the roll material and the insulation layer are fixed to the profiled steel sheet by metal fasteners to form a continuous thermal insulation and waterproof barrier.
It improves the wind resistance of the roof, enhances the waterproof and vapor barrier effect, reduces construction costs and time, reduces leakage points, and improves construction efficiency and waterproofing effect.
Smart Images

Figure CN224679005U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of roofing roll construction, and in particular, it is a reinforced thermal insulation, vapor barrier and waterproof structure for roofing TPO rolls. Background Technology
[0002] As modern factory buildings gradually become the mainstream, roof waterproofing construction has become crucial. TPO waterproof membranes are increasingly being widely used for industrial factory roof waterproofing due to their advantages such as strong weather resistance, convenient construction, and good waterproofing effect.
[0003] The existing TPO fixed waterproofing system for roofs has the following problems: 1. Perforated mechanical fixing methods can easily lead to damage and leakage of the roofing membrane. TPO membranes are generally installed without perforations to ensure their waterproofing effect. At the overlap edges, the upper layer of membrane is pressed down on the lower layer and the two are hot-air welded. However, because the TPO membrane and rock wool insulation board are laid directly without any fixing measures at this point, the roof's wind uplift resistance at the overlap edges is still relatively weak.
[0004] Second, most vapor barriers currently use PE film, which is laid directly on the top surface of the corrugated steel sheet during construction. It cannot be completely adhered to the corrugated steel sheet, resulting in gaps between the corrugated steel sheet and the rock wool board at the troughs. This makes it easy for water vapor to be generated, affecting the vapor barrier effect and causing damage to the roof structure from the inside.
[0005] Third, the insulation layer cannot be completely bonded to the profiled steel sheet, resulting in a discontinuous insulation system at the troughs. Utility Model Content
[0006] The purpose of this utility model is to provide a reinforced thermal insulation, vapor barrier and waterproof structure for roof TPO rolls. It aims to solve the technical problem that the existing roof TPO rolls have weak wind uplift resistance at the overlap position, and also to solve the technical problem that the PE vapor barrier film cannot be bonded to the profiled steel sheet, which easily generates water vapor and affects the vapor barrier effect; it also aims to solve the technical problem that water vapor accumulates in the troughs and causes damage to the roof structure from the inside.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: A roof TPO roll reinforced thermal insulation, vapor barrier and waterproof structure, comprising, from bottom to top, a roof structure system, a thermal insulation and vapor barrier system and an outer waterproof system; The roof structure system includes: Roof purlins; Corrugated steel sheet, including crest sections and trough sections, with the trough sections being fixedly connected to the roof purlins by corrugated steel sheet metal fasteners; Thermal insulation and vapor barrier systems include: The vapor barrier is a metal-based vapor barrier membrane that is continuously laid along the crest and trough sections of the profiled steel sheet. Valley filling reinforcement strips are filled into the vapor barrier layer in the valley section; The bottom surface of the insulation layer is bonded to the top surface of the vapor barrier at the crest section and to the top surface of the trough filling reinforcement strip at the trough section. The outer waterproofing system includes: The waterproof layer is a TPO waterproof membrane, which is laid along the surface of the insulation layer. The overlap of the membrane includes the lower overlap and the upper overlap. Metal fasteners include insulation layer fasteners and roll material reinforcements. The roll material reinforcements are arranged in rows at intervals at the overlap edges of the roll material, while the insulation layer fasteners are arranged at the non-overlap edges. The upper lap edge is longer than the lower lap edge. The coil reinforcement penetrates the end of the lower lap edge and the insulation layer and is anchored into the profiled steel sheet. The upper lap edge covers the top surface of the coil reinforcement, and its end is welded to the lower lap edge through a weld.
[0008] The vapor barrier is an aluminum foil-modified bitumen self-adhesive waterproof vapor barrier membrane, which is bonded to the surfaces of both the crest and trough sections.
[0009] The trough filling reinforcement strip is a centrifugal glass wool strip. Its shape is adapted to the inner diameter of the vapor barrier after the trough section is attached, and it is attached to the surface of the vapor barrier in the trough section side wall and bottom plate range through an adhesive layer.
[0010] The adhesive layer is an acrylic adhesive.
[0011] The top surface of the trough filling reinforcement strip is flush with the top surface of the vapor barrier layer in the crest section.
[0012] The insulation layer is made of rock wool board.
[0013] The insulation layer fastener penetrates the insulation layer and is anchored into the profiled steel sheet. An insulation fixing metal gasket is provided between its top and the top surface of the insulation layer. The waterproof layer covers the insulation layer fastener and is fixedly connected to the insulation fixing metal gasket.
[0014] The coil reinforcement is spaced longitudinally along the overlap edge of the coil, and a coil fixing metal gasket is provided between its top and the top surface of the lower overlap edge. The lower overlap edge is fixedly connected to the coil fixing metal gasket.
[0015] The roll material reinforcement is laterally staggered from the adjacent insulation layer fixing component, and the spacing between them is the same.
[0016] The fixed connection is achieved by thermomagnetic welding.
[0017] Compared with the prior art, this utility model has the following features and beneficial effects: This invention optimizes the layout of metal fasteners by arranging a portion of them in a row at the roll overlap position to form roll reinforcements, while the remainder are insulation layer fasteners arranged in a matrix to fix the insulation layer to the profiled steel plate. The roll reinforcements fix the lower roll and the insulation layer at the overlap position, and the upper roll covers the roll reinforcements. At the same time, the upper roll and the roll fixing metal gasket are welded together. The two work together to resist roof wind pressure and improve the wind resistance of the roll at the overlap.
[0018] This invention uses flexible TPO rolls as the roof waterproofing layer. Each layer of the system is fixedly installed on the roof structural panel. The aluminum foil-modified bitumen self-adhesive waterproof vapor barrier membrane adheres to the profiled steel sheet. By replacing the traditional PE vapor barrier membrane with the aluminum foil-modified bitumen self-adhesive waterproof vapor barrier membrane, the vapor barrier membrane is tightly bonded to the crests and troughs of the profiled steel sheet, filling the gaps between the profiled steel sheet troughs and the rock wool board, thus improving the waterproof and vapor barrier effect. Simultaneously, centrifugal glass wool strips are filled in the troughs of the profiled steel sheet and bonded to the aluminum foil-modified bitumen self-adhesive waterproof vapor barrier membrane with an acrylic adhesive. The weight of the centrifugal glass wool strips further ensures the adhesion between the vapor barrier membrane and the profiled steel sheet. The centrifugal glass wool strips are also connected to the upper insulation board, providing insulation. The entire insulation system is continuous, forming a complete waterproof and vapor barrier.
[0019] This invention forms a sealed roof system with superior thermal insulation and waterproofing performance by combining a roof structure system, a thermal insulation and vapor barrier system, and an outer waterproofing system. Compared with traditional technologies, it shows significant advantages in improving the roof's wind resistance, enhancing waterproofing and vapor barrier performance, and reducing construction costs and time. The construction time for 1000 square meters of roof, which normally requires a 10-person team working for 10 days, can be completed with only 4 people working for 10 days using this invention. This greatly improves construction efficiency and enhances waterproofing. Calculations show that on average, it can reduce leakage points by 5 per 1000 square meters of roof, reducing subsequent maintenance costs by 5000 yuan.
[0020] This utility model is applicable to the waterproofing construction of roofs of large industrial plants, and its specific scope of implementation can include building construction projects, public building projects, industrial building projects, etc. Attached Figure Description
[0021] The present invention will now be described in further detail with reference to the accompanying drawings.
[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0023] Figure 2 yes Figure 1 A schematic diagram of the transverse cross section.
[0024] Figure 3yes Figure 2 A magnified view of a portion of the image.
[0025] Figure 4 yes Figure 1 A schematic diagram of the longitudinal section.
[0026] Figure 5 yes Figure 4 A magnified view of a portion of the image.
[0027] Figure reference numerals: 1 - Roof purlin, 2 - Corrugated steel sheet, 21 - Corrugated peak section, 22 - Corrugated trough section, 3 - Vapor barrier, 4 - Corrugated trough filling reinforcement strip, 5 - Thermal insulation layer, 6 - Waterproof layer, 61 - Lower layer overlap edge, 62 - Upper layer overlap edge, 71 - Thermal insulation layer fastener, 72 - Roll material reinforcement, 8 - Thermal insulation fixing metal gasket, 9 - Roll material fixing metal gasket, 10 - Weld, 11 - Corrugated steel sheet metal fastener. Detailed Implementation
[0028] See the examples. Figure 1-5 As shown, a roof TPO roll reinforced thermal insulation, vapor barrier and waterproof structure includes, from bottom to top, a roof structure system, a thermal insulation, vapor barrier system and an outer waterproof system.
[0029] The roof structure system includes: Roof purlin 1 is an I-beam purlin; The profiled steel sheet 2 includes a crest section 21 and a trough section 22. The trough section 22 is fixedly connected to the roof purlin 1 by a profiled steel sheet metal fastener 11.
[0030] Thermal insulation and vapor barrier systems include: Vapor barrier 3 is a metal-based adaptable vapor barrier membrane, which is continuously laid along the surface of the crest section 21 and the trough section 22 of the profiled steel sheet 2; vapor barrier 3 is an aluminum foil modified bitumen self-adhesive waterproof vapor barrier membrane, which is bonded to the surface of the crest section 21 and the trough section 22. The trough filling reinforcement strip 4 is filled onto the vapor barrier 3 of the trough section 22. The trough filling reinforcement strip 4 is a centrifugal glass wool strip, the shape of which matches the inner diameter of the vapor barrier 3 after the trough section 22 is attached, and it is bonded to the surface of the vapor barrier 3 in the trough section side wall and bottom plate range by an adhesive layer. The adhesive layer is an acrylic adhesive. The top surface of the trough filling reinforcement strip 4 is flush with the top surface of the vapor barrier 3 of the crest section 21. It also includes a thermal insulation layer 5, the bottom surface of which is attached to the top surface of the vapor barrier 3 in the crest section 21 and to the top surface of the trough filling reinforcement strip 4 in the trough section 22; the thermal insulation layer 5 is a rock wool board.
[0031] The outer waterproofing system includes: Waterproof layer 6 is a TPO waterproof membrane, which is laid along the surface of insulation layer 5. The overlapping edges of the membrane include a lower overlapping edge 61 and an upper overlapping edge 62. The metal fasteners include insulation layer fasteners 71 and roll material reinforcements 72. The roll material reinforcements 72 are arranged in rows at intervals along the overlap edges of the roll material, while the insulation layer fasteners 71 are arranged in a matrix at intervals along the non-overlap edges. The roll material reinforcements 72 are laterally offset from the adjacent insulation layer fasteners 71, and their spacing is the same as that of the insulation layer fasteners 71.
[0032] The upper lap edge 62 is longer than the lower lap edge 61. The coil reinforcement 72 passes through the end of the lower lap edge 61 and the insulation layer 5 and is anchored into the profiled steel sheet 2. The upper lap edge 62 covers the top surface of the coil reinforcement 72, and its end is welded to the lower lap edge 61 through the weld 10.
[0033] The insulation layer fastener 71 penetrates the insulation layer 5 and is anchored into the profiled steel sheet 2. An insulation fixing metal gasket 8 is provided between its top and the top surface of the insulation layer 5. The waterproof layer 6 covers the insulation layer fastener 71 and is fixedly connected to the insulation fixing metal gasket 8. The fixed connection is thermomagnetic welding.
[0034] The coil reinforcement 72 is arranged longitudinally along the overlap edge of the coil, and a coil fixing metal gasket 9 is provided between its top and the top surface of the lower overlap edge 61. The lower overlap edge 61 is fixedly connected to the coil fixing metal gasket 9. The fixed connection is thermomagnetic welding.
[0035] In this utility model, the profiled steel sheet 2 is a 0.8mm thick galvanized YX38-150-900 profiled steel sheet; the vapor barrier layer 3 is a 0.3mm-0.7mm thick aluminum foil modified bitumen self-adhesive waterproof vapor barrier membrane; the trough filling reinforcing strip 4 is centrifugal glass wool with a density of not less than 16Kg / m³; the thermal insulation layer 5 is a 150mm thick rock wool board, of which two 75mm thick layers are laid in a staggered manner, and the rock wool density is 180kg / m³; the waterproof layer 6 is a 1.8mm thick TPO waterproof membrane; and the thermal insulation layer fixing parts 71 and the membrane reinforcing parts 72 are M6.3 fixing nails.
[0036] The construction process of this utility model is as follows: Step 1: Construct the roof structure system; Step 2: Based on the model of the profiled steel sheet 2 in the roof structure system, fabricate the trough filling reinforcement strip 4; Step 3: Continuously apply vapor barrier 3 onto profiled steel sheet 2; during application, peel off the self-adhesive and bond it to profiled steel sheet 2 to ensure that there are no air bubbles and the bonding is smooth. Step 4: Apply acrylic adhesive to both sides of the trough filling reinforcement strip 4, and then insert it into the trough section 22 one by one and press it firmly. Step 5: Lay the insulation layer 5 flat as a whole, connecting it to the vapor barrier layer 3 at the crest and connecting it to the trough filling reinforcement strip 4 at the trough to form a complete insulation and vapor barrier system. Step 6: Based on the overlapping edge position of the waterproof layer 6, design the distribution of the insulation layer fastener 71 and the roll material reinforcement 72 in the metal fasteners; first construct the insulation layer fasteners 71 at the non-overlapping edge positions, then lay the waterproof layer 6, and thermomagnetically weld the waterproof layer 6 to the insulation fixing metal gaskets 8 at the positions of each insulation layer fastener 71. Step 7: At the overlap edge position, fix the lower overlap edge 61 to the insulation layer 5 through the row of roll material reinforcement members 72; then cover the upper overlap edge 62 with the roll material reinforcement members 72, and thermomagnetically weld the upper overlap edge 62 to the roll material fixing metal gasket 9, while the end of the upper overlap edge 62 is connected to the lower overlap edge 61 through the weld seam 10 of hot air welding.
Claims
1. A reinforced thermal vapor retardant waterproofing structure for roofing TPO membranes, characterized in that: From bottom to top, it includes the roof structure system, the thermal insulation and vapor barrier system, and the outer waterproofing system; The roof structure system includes: Roof purlins (1); The profiled steel sheet (2) includes a crest section (21) and a trough section (22), and the trough section (22) is fixedly connected to the roof purlin (1) by a profiled steel sheet metal fastener (11); Thermal insulation and vapor barrier systems include: The vapor barrier (3) is a metal-based vapor barrier membrane that is continuously laid along the surface of the crest section (21) and trough section (22) of the profiled steel sheet (2). The trough filling reinforcement strip (4) is filled on the vapor barrier layer (3) of the trough section (22); The bottom surface of the insulation layer (5) is attached to the top surface of the vapor barrier layer (3) at the crest section (21) and to the top surface of the trough filling reinforcement strip (4) at the trough section (22); The outer waterproofing system includes: The waterproof layer (6) is a TPO waterproof membrane, which is laid along the surface of the insulation layer (5). The overlapping edges of the membrane include the lower overlapping edge (61) and the upper overlapping edge (62). Metal fasteners include insulation layer fasteners (71) and roll material reinforcements (72). The roll material reinforcements (72) are arranged in rows at intervals at the roll material overlap edges, and the insulation layer fasteners (71) are arranged at the non-overlap edges. The upper lap edge (62) is longer than the lower lap edge (61). The coil reinforcement (72) passes through the end of the lower lap edge (61), the insulation layer (5) and is anchored into the profiled steel plate (2). The upper lap edge (62) covers the top surface of the coil reinforcement (72) and its end is welded to the lower lap edge (61) through the weld (10).
2. The reinforced thermal vapor retardant waterproofing structure of the TPO roofing membrane according to claim 1, wherein: The vapor barrier layer (3) is an aluminum foil modified bitumen self-adhesive waterproof vapor barrier membrane, which is bonded to the surfaces of the crest section (21) and the trough section (22).
3. The reinforced thermal vapor retardant waterproofing structure of the TPO roofing membrane according to claim 2, wherein: The trough filling reinforcement strip (4) is a centrifugal glass wool strip. Its shape is adapted to the inner diameter of the vapor barrier (3) after the trough section (22) is attached, and it is attached to the surface of the vapor barrier (3) in the range of the side wall plate and bottom plate of the trough section through an adhesive layer.
4. The reinforced thermal vapor retardant waterproofing structure of the TPO roofing membrane according to claim 3, wherein: The adhesive layer is an acrylic adhesive.
5. The reinforced thermal vapor retardant waterproofing structure of the TPO roofing membrane according to claim 3, wherein: The top surface of the trough filling reinforcement strip (4) is flush with the top surface of the vapor barrier layer (3) of the crest section (21).
6. The reinforced thermal vapor retardant waterproofing structure of the TPO roofing membrane of claim 1, wherein: The insulation layer (5) is a rock wool board.
7. The reinforced thermal vapor retardant waterproofing structure of the TPO roofing membrane of claim 1, wherein: The insulation layer fastener (71) penetrates the insulation layer (5) and is anchored into the profiled steel sheet (2). A heat-insulating fixing metal gasket (8) is provided between its top and the top surface of the insulation layer (5). The waterproof layer (6) covers the insulation layer fastener (71) and is fixedly connected to the heat-insulating fixing metal gasket (8).
8. The reinforced thermal vapor retardant waterproofing structure of the TPO roofing membrane according to claim 7, wherein: The roll reinforcement (72) is arranged longitudinally along the roll overlap edge, and a roll fixing metal gasket (9) is provided between its top and the top surface of the lower overlap edge (61), and the lower overlap edge (61) is fixedly connected to the roll fixing metal gasket (9).
9. The reinforced thermal vapor retardant waterproofing structure of the TPO roofing membrane according to claim 8, wherein: The roll reinforcement (72) is laterally offset from the adjacent insulation layer fixing member (71), and the spacing between them is the same.
10. The reinforced thermal and vapor barrier waterproofing structure of claim 7 or 8, wherein: The fixed connection is achieved by thermomagnetic welding.