Non-perforated metal roof with single-layer waterproof roll structure

Abstract

The invention discloses a non-perforated metal roof with a single-layer waterproof roll structure, which is characterized in that a steel wire mesh support layer and a glass wool heat insulation layer with a vapor barrier layer are laid on a structural purline in a layered manner, a fixed seat heat insulation gasket, a sliding fixed seat lower base and a sliding fixed seat upper sliding sheet are mounted, a vertical lockrand plate is mounted, and a peak top heat insulation strip is mounted. A top cover plate is installed, edge locking is conducted, and a first complete metal waterproof system is formed; and then the troughs of the plate are filled with hard heat preservation layer materials, fireproof covering layers on the top faces of the hard heat preservation layer materials and the like, and then exposed waterproof coiled materials are laid and tightly bonded with the outer side faces of the metal waterproof plates to form a second complete waterproof layer. And finally, the metal roof enclosure system with the combined action of the two non-penetrating waterproof layers is completed. The waterproof heat-preservation building block has the remarkable characteristics of two real waterproof layers, no perforation mechanical fixation, good waterproof performance, quick mechanical construction, excellent wind lifting resistance, good heat-preservation performance and the like.

Description

Technical Field

[0001] The invention relates to the technical field of building structural components, belonging to metal roof structures, and in particular to a non-perforated metal roof with a single-layer waterproof coiled material structure. Background Art

[0002] With the development of single-layer waterproof membrane material technology, exposed flexible membranes including polyvinyl chloride waterproof membrane (PVC), thermoplastic polyolefin waterproof membrane (TPO), ethylene propylene diene monomer waterproof membrane (EPDM) have been widely used in industrial building roofs and public building roofs. Because modern buildings have many building physics requirements such as large coverage area, huge volume, unique shape, large span, and long service life, the single-layer waterproof membrane metal roof system has excellent performance such as convenience, fast installation, high waterproof performance, and can be matched with a variety of shapes, etc., making it widely used in roof design.

[0003] In recent years, the application of single-layer waterproof coiled metal roofing system in many projects has exposed the following problems: 1. The installation defects of the current surface flexible coiled material: Since there are multiple layers of insulation layer, waterproof layer and vapor barrier layer with a total thickness of more than 50mm between the outer skin and the bottom supporting steel plate, the self-tapping screw method fixed on the top surface of the bottom supporting steel plate, but because the positioning of the self-tapping screw cannot predict whether it is fixed at the wave crest platform position, it is often fixed at the cavity position of the wave valley, or the bevel position on both sides of the wave valley. There will be multiple attempts to penetrate the rock wool insulation layer many times, resulting in the loss of thermal insulation performance of the rock wool layer;

[0004] 2. The long self-tapping screws fixing the outer flexible coil and the self-tapping screws fixing the thermal insulation rock wool blocks penetrated the bottom supporting steel plate, so that more than 8 holes were pierced per square meter of the steel plate. The steel plates at these positions would be pressed into a small pit during self-drilling, which was easy to accumulate water. There was no waterproofing measure at the edge of the hole. Moreover, after the screws were self-drilled, the anti-corrosion layer of the drill bit was worn away, which was easily corroded by indoor water vapor. The rust range would continue to expand along the drilling point, and it could not be used as a complete waterproof layer.

[0005] 3. The commonly used bottom supporting steel plates are all corrugated steel plates with trapezoidal cross-sections. The length and width of each plate are limited. They rely on front and back overlaps and left and right overlaps. There are many overlap gaps and they cannot be used as a complete waterproof layer.

[0006] 4. The common way to fix TPO flexible coils is to use long U-shaped strips with screws or point-shaped fixing pads. Under strong wind loads, they are easily blown away by strong winds. Now we need to find a stronger fixing method;

[0007] 5. In the future, many additional components such as photovoltaic brackets and roof lightning rod brackets will need to be installed above the outer skin of the single-layer waterproof membrane. In order to find a fixed position for the bracket column that meets the force requirements, the bracket column will inevitably penetrate the surface flexible waterproof layer, hollow out the rock wool layer, and be fixed to the crest range of the purlin or the bottom supporting steel plate. If the penetrable position is not marked in advance, or if the column is added in the later stage of the renovation, it will be difficult to find the purlin or crest platform, resulting in multiple perforation losses;

[0008] 6. After the roof is used for a long time, due to the difference in temperature expansion and contraction length between the exposed surface layer and the underlying supporting steel plate, the surface of the coil is prone to wrinkles. After repeated action of wind lifting force, it is easy to crack and cause water leakage;

[0009] 7. In Table 4.4.1-3 of the "General Specification for Waterproofing of Buildings and Municipal Engineering GB55030-2022", when the waterproof level in the waterproofing method of metal roofing projects is level one and level two, it is required that there should be no less than two waterproofing methods. However, the bottom supporting steel plate of the current single-layer waterproof membrane metal roof mentioned above is penetrated at multiple points. There is a lot of controversy as to whether it can be used as the second waterproof layer. Therefore, it is now necessary to find a non-perforated metal roof with a single-layer waterproof membrane structure. Summary of the invention

[0010] 1. Technical issues to be resolved

[0011] In view of the shortcomings of the prior art, the present invention discloses a non-perforated metal roof with a single-layer waterproof coiled material structure to solve the problems raised in the above background technology.

[0012] (II) Technical solution

[0013] To achieve the above objectives, the present invention is implemented through the following technical scheme: a non-perforated metal roof with a single-layer waterproof membrane structure, including a structural purlin of the lowest foundation, the top of the structural purlin is layered with a steel mesh support layer and a glass wool insulation layer with a vapor barrier layer, the top of the glass wool insulation layer with the vapor barrier layer is installed with a fixed seat insulation gasket, a sliding fixed seat lower base and a sliding fixed seat upper slide through self-tapping screws, the top of the glass wool insulation layer with the vapor barrier layer is installed with an upright locking plate, the top of the upright locking plate is successively installed with a peak insulation strip and a board top cover plate, the board troughs between the upright locking plates are filled with a hard insulation layer, the top surface of the hard insulation layer is provided with a fireproof covering layer, the fireproof covering layer is lower than the board top cover plate, the top of the board top cover plate and the fireproof covering layer is laid with an exposed waterproof membrane, and the inner side of the exposed waterproof membrane is tightly bonded to the outer side of the board top cover plate.

[0014] Preferably, the wire mesh support layer is a stainless steel wire mesh, the wire mesh support layer is perpendicular to the structural purlins, and the portion of the wire mesh support layer between the plurality of structural purlins is in a drooping posture.

[0015] Preferably, the glass wool insulation layer with a vapor barrier layer is a thermal insulation glass wool roll with a vapor barrier layer pre-pasted on the bottom, the glass wool insulation layer with a vapor barrier layer spans multiple structural purlins, and the glass wool insulation layer with a vapor barrier layer is fixedly connected at two locations by bonding with sealing tape and a stapler.

[0016] Preferably, the bottom barb of the slide on the sliding fixed seat is meshed with the top barb of the base under the sliding fixed seat, and the base under the sliding fixed seat and the insulation gasket of the fixed seat are fixed to the upper surface of the glass wool insulation layer with a vapor barrier layer by fixing screws. The fixing screws can be self-tapping screws or rivets, and the fixing screws are arranged in multiple rows.

[0017] Preferably, the upright lock edge plate is a metal plate, the upright lock edge plate is in a "C" shape with the opening facing upward, the shapes of the two ends of the upright lock edge plate are completely symmetrical, and the two adjacent pieces of the upright lock edge plate are buckled and connected by a plate top cover plate.

[0018] Preferably, the peak insulation strip is buckled on the flat section of the top of the upright seam board, and the bottoms of both ends of the peak insulation strip are coated with continuous butyl rubber. The peak insulation strip can be set or not set according to the requirements of thermal insulation. When there are different requirements for thermal insulation, different thickness specifications and materials are selected according to calculations.

[0019] Preferably, the board top cover plate is a metal plate, initially presenting a "C" shape with the mouth facing downwards, and the board top cover plate is buckled and installed on the top flat section of the board top and the top of the peak insulation strip of the upright lock edge plate, and the upright lock edge plate presents an "I"-shaped cross-section after buckling, and adhesive is applied to the trough position of the upright lock edge plate, and the adhesive is used to stick the hard insulation layer.

[0020] Preferably, the rigid thermal insulation layer and the fireproof covering board thereof will fill the trough area of ​​the upright locking edge board, and the height is slightly lower than the top cover board by 1 to 2 mm, leaving no gap.

[0021] Preferably, the top surface of the board top cover is coated with adhesive in advance, and the adhesive is used to fix the exposed waterproof membrane. The exposed waterproof membrane is laid perpendicular to the water flow direction. The hard base plane composed of the fireproof covering layer and the board top cover can be bonded and fixed to the waterproof membrane by full bonding method.

[0022] Preferably, the surface of the board top cover is treated with a special TPO coating, the roofing membrane is fixed to the top of the board top cover through the heated TPO coating, and the overlapping positions of the exposed waterproof membrane are hot-air welded.

[0023] The surface of the top cover plate is treated with a special TPO coating. After the exposed waterproof membrane is laid, a continuous electromagnetic induction welder is used in the full-length drainage direction. The high-frequency welding technology is used to heat the top cover plate through the electromagnetic induction principle, i.e., eddy current. The heat is used to weld the roofing membrane to the top cover plate with a special coating, thereby achieving non-perforated mechanical fixation and forming a full-length stress belt corresponding to the wave crest position of the steel plate. When the wind lift force acts, the tension acts on the center line of the top cover plate, and the normal direction of the vertical surface is upward, without generating eccentric bending moment, and the roofing membrane will not be unbalancedly torn, and the force transmission is clear.

[0024] The present invention discloses a non-perforated metal roof with a single-layer waterproof coiled material structure, which has the following beneficial effects:

[0025] 1. The non-perforated metal roof with a single-layer waterproof coil structure has good waterproof performance and quick construction, solving most of the problems: no penetration screws to penetrate the insulation layer; no self-tapping screws to penetrate the bottom support steel plate and cause possible corrosion; the bottom support steel plate is fully sealed in both the length and width directions, and has an airtight and watertight structure connected throughout the length, which is an excellent waterproof layer; the improved flexible coil has a denser and smaller fixed spacing, and is fixed throughout the length direction, which is the strongest fixed density seen so far, enough to cope with greater wind loads; the steel plate is fixed in a sliding manner in the length direction, fully releasing the temperature deformation of the steel structure, and the function of telescopic sliding is borne by the bottom hook of the sliding fixed seat and the bottom base of the sliding fixed seat, with excellent force transmission performance. This sliding fixed position is not associated with the waterproof position and will not cause water leakage hazards. It truly meets the requirements of the latest general waterproof specifications for two layers of waterproofing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the front cross-sectional structure of the roof system of the present invention;

[0027] Figure 2 It is a schematic diagram of the left-side cross-sectional structure of the roof system of the present invention;

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure and cross-sectional structure of the roof system of the present invention;

[0029] Figure 4 It is a schematic diagram of the installation of the cross-sectional structure of the additional peak insulation strip of the present invention.

[0030] In the figure: 1. Exposed waterproofing membrane; 10. Standing seam board; 11. Top cover board; 12. Continuous butyl rubber; 13. Peak insulation strip;

[0031] 2. Hard insulation layer; 21. Sliding plate on the sliding fixed seat; 22. Lower base of the sliding fixed seat; 23. Thermal insulation gasket of the fixed seat;

[0032] 3. Glass wool insulation layer with vapor barrier; 30. Fixing screws;

[0033] 4. Wire mesh support layer; 40. Structural purlins. DETAILED DESCRIPTION

[0034] The embodiment of the present invention discloses a non-perforated metal roof with a single-layer waterproof coiled material structure, such as Figure 1-4 As shown, in order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the drawings in the present invention and by way of example.

[0035] like Figure 1-4 The non-perforated metal roof with a single-layer waterproof coiled material structure shown in the figure starts from the structural purlin 40 of the lowest foundation, and then lays the steel wire mesh support layer 4 and the glass wool insulation layer 3 with a vapor barrier layer upward in layers, and then installs the fixed seat insulation gasket 23, the sliding fixed seat lower base 22 and the sliding fixed seat upper slide 21 by self-tapping screws or bolts, and then installs the upright locking board 10, the peak insulation strip 13, the board top cover 11, and locks the edges to form the first complete metal waterproof system, and then fills the board trough with a hard insulation layer 2 such as rock wool, glass wool, foam glass and other insulation materials, and the fireproof covering layer on the top surface, so that the top surface is slightly lower than the board top cover 11 of the metal waterproof board, and then lays the exposed waterproof coiled material 1, the inner side of which is tightly bonded to the outer side of the long strip board top cover 11 of the metal waterproof board, forming the second complete waterproof layer. At this point, the metal roof enclosure system including two non-penetrating waterproof layers working together is completed.

[0036] The wire mesh support layer 4 is a stainless steel wire mesh or a galvanized steel wire mesh, which is perpendicular to the direction of the structural purlin 40, spans multiple purlins, and is in a drooping posture in the middle of the span, leaving space height for the subsequent thermal insulation glass wool.

[0037] The glass wool insulation layer 3 with vapor barrier is a thermal insulation glass wool roll with a vapor barrier pre-pasted on the bottom, which is laid on the wire mesh support layer 4, perpendicular to the direction of the structural purlin 40, spanning multiple purlins, and is fixedly connected at the adjacent edge joints with sealing tape and a stapler to form a complete vapor barrier insulation layer.

[0038] The sliding fixed seat is assembled from two pieces of galvanized steel plates, and is divided into: an upper slide 21 on the sliding fixed seat, and a lower base 22 of the sliding fixed seat. The bottom hook of the upper slide 21 of the sliding fixed seat engages with the top hook of the lower base 22 of the sliding fixed seat, so that the two can slide to release temperature stress and transmit upward wind lift force and downward gravity at the same time. The fixed seat insulation gasket 23 is arranged below the lower base 22 of the sliding fixed seat.

[0039] The lower base 22 of the sliding fixing seat and the fixing seat insulation gasket 23 are pressed onto the glass wool insulation layer 3 with a vapor barrier layer. After tightening, the fixing screws 30 are injected. The fixing screws 30 can be self-tapping screws or rivets. The fixing screws 30 make it easy to install the connection between the fixing seat and the roof panel. At the same time, it also allows the connection fasteners to be installed firmly. The self-tapping screws or rivets are arranged in multiple rows.

[0040] The upright lock edge plate 10 is formed by rolling a metal plate through a customized rolling device. The upright lock edge plate 10 is in the shape of a "C" with the opening facing upward. The shapes of the two ends of the upright lock edge plate 10 are completely symmetrical, without male and female buckles, to ensure that the external force applied to this position in the future will not produce eccentric torsion and ensure vertical force. The two adjacent pieces of the upright lock edge plate 10 are connected by buckling the top cover plate 11.

[0041] The peak insulation strip 13 can be set or not set according to the requirements of thermal insulation. When there are different requirements for thermal insulation, different thickness specifications and materials are selected according to calculations. The peak insulation strip 13 is buckled into the top flat section of the upright lock edge board 10 that has been assembled with a fixed seat, and the bottom of both ends of the peak insulation strip 13 are coated with continuous butyl rubber 12. At the top of the fixed seat, the top of the fixed seat and the top flat section are pressed, and two waterproof butyl rubber strips are applied at the two inner corner positions.

[0042] The top cover plate 11 is a metal plate, which is rolled by a customized rolling equipment. It initially presents a "C" shape with the mouth facing downward. After two waterproof butyl rubber strips are mechanically and automatically applied at the two inner corner positions, it is buckled onto the top flat section and peak insulation strip 13 of the upright lock edge plate 10 that has been assembled with a fixed seat. At the top of the fixed seat, the top of the fixed seat, the top flat section and the peak insulation strip 13 are pressed. The top cover plate 11 is deformed by rolling through an external locking machine, and the two adjacent upright lock edge plates 10 are buckled and connected.

[0043] After the upright locking edge board 10 is buckled, the board ribs present an “I”-shaped cross-section feature, and adhesive is applied at the trough position of the upright locking edge board 10 to adhere to the hard insulation layer 2.

[0044] The hard insulation layer 2 is made of rock wool, hard glass wool, and foam glass. The above three types can be laid directly without fireproof covering boards. In addition, B1 grade polyurethane boards, polyisocyanurate boards, and extruded foam insulation boards with fireproof covering boards can also be used.

[0045] Fireproof covering boards can be made of hard non-combustible materials such as cement fiber boards, calcium silicate boards, glass magnesium boards, and fire-resistant gypsum boards.

[0046] The rigid insulation layer 2 and its fireproof cover board will fill the trough area of ​​the upright seam board 10, and the height is slightly lower than the top cover board 11 by 1-2 mm, leaving no gap.

[0047] The exposed waterproof membrane 1 can be made of polyvinyl chloride waterproof membrane, thermoplastic polyolefin waterproof membrane, EPDM waterproof membrane and other materials. Before laying the exposed waterproof membrane 1, adhesive is applied in advance on the top surface of the board top cover plate 11. The exposed waterproof membrane 1 is laid perpendicular to the water flow direction. The hard base plane composed of the fireproof covering layer and the board top cover plate 11 can be bonded and fixed to the waterproof membrane by full bonding method.

[0048] The surface of the top cover plate 11 is treated with a special TPO coating. After the exposed waterproof membrane 1 is laid, a continuous electromagnetic induction welding machine is used to heat the top cover plate 11 in the full-length drainage direction using high-frequency welding technology. The heat is used to weld the roofing membrane to the top cover plate 11 with a special coating to achieve non-perforated mechanical fixation, forming a full-length stress belt corresponding to the wave crest position of the steel plate. When the wind lift force acts, the tension acts on the center line of the top cover plate 11, vertically upward in the direction of the surface normal, and no eccentric bending moment is generated. The adjacent exposed waterproof membranes 1 are welded densely at the overlap position with hot air to complete large-area construction.

[0049] The present invention has good waterproof performance and quick construction, and solves most of the problems: there is no penetration damage to the insulation layer by penetrating screws; there is no hole damage and possible corrosion to the bottom support steel plate by self-tapping screws; the bottom support steel plate is fully sealed in the length and width directions, and has an airtight and watertight structure connected throughout the length, which is an excellent waterproof layer; the improved flexible coil has a denser and smaller fixed spacing, and is fixed throughout the length direction, which is the strongest fixed density seen so far, enough to cope with greater wind loads; the steel plate is fixed in a sliding manner in the length direction, which fully releases the temperature deformation of the steel structure, and the function of telescopic sliding is borne by the bottom hook of the sliding fixed seat and the bottom base of the sliding fixed seat, with excellent force transmission performance, and this sliding fixed position is not associated with the waterproof position, and there will be no hidden danger of water leakage. It truly meets the requirements of the latest general waterproof specifications for two layers of waterproofing.

[0050] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A non-perforated metal roof with a single-layer waterproof membrane structure, comprising a structural purlin (40) of the lowest foundation, characterized in that: The top of the structural purlin (40) is layered with a steel wire mesh support layer (4) and a glass wool insulation layer (3) with a vapor barrier layer, the top of the glass wool insulation layer (3) with a vapor barrier layer is installed with a fixed seat insulation gasket (23), a sliding fixed seat lower base (22) and a sliding fixed seat upper slide (21) through self-tapping screws, and the top of the glass wool insulation layer (3) with a vapor barrier layer is installed with a vertical locking plate (10), and the top of the vertical locking plate (10) is sequentially A peak insulation strip (13) and a board top cover plate (11) are installed, and a hard insulation layer (2) is filled in the board trough between the upright lock edge plates (10). A fireproof covering layer is arranged on the top surface of the hard insulation layer (2), and the fireproof covering layer is lower than the board top cover plate (11). An exposed waterproof membrane (1) is laid on the top of the board top cover plate (11) and the fireproof covering layer, and the inner side of the exposed waterproof membrane (1) is tightly bonded to the outer side of the board top cover plate (11).

2. The non-perforated metal roof with a single-layer waterproof coiled material structure according to claim 1, characterized in that: The wire mesh support layer (4) is a stainless steel wire mesh, the wire mesh support layer (4) is perpendicular to the structural purlins (40), and the portion of the wire mesh support layer (4) between the plurality of structural purlins (40) is in a drooping posture.

3. The non-perforated metal roof with a single-layer waterproof coiled material structure according to claim 1, characterized in that: The glass wool thermal insulation layer (3) with a vapor barrier layer is a thermal insulation glass wool roll with a vapor barrier layer pre-adhered to the bottom, the glass wool thermal insulation layer (3) with a vapor barrier layer spans across multiple structural purlins (40), and the glass wool thermal insulation layer (3) with a vapor barrier layer is fixedly connected at two joints by sealing tape and a stapler.

4. The non-perforated metal roof with a single-layer waterproof coiled material structure according to claim 1, characterized in that: The bottom barb of the sliding plate (21) on the sliding fixed seat is meshed with the top barb of the lower base (22) of the sliding fixed seat. The lower base (22) of the sliding fixed seat and the fixed seat thermal insulation gasket (23) are fixed to the upper surface of the glass wool insulation layer (3) with a vapor barrier layer by fixing screws (30). The fixing screws (30) can be self-tapping screws or rivets. The fixing screws (30) are arranged in multiple rows.

5. The non-perforated metal roof with a single-layer waterproof coiled material structure according to claim 1, characterized in that: The upright lock edge plate (10) is a metal plate. The upright lock edge plate (10) is in the shape of a "C" with its opening facing upward. The shapes of the two ends of the upright lock edge plate (10) are completely symmetrical. Two adjacent pieces of the upright lock edge plate (10) are buckled and connected via a plate top cover plate (11).

6. The non-perforated metal roof with a single-layer waterproof coiled material structure according to claim 5, characterized in that: The peak heat insulation strip (13) is buckled on the top flat section of the upright seam-locking board (10), and the bottoms of both ends of the peak heat insulation strip (13) are coated with continuous butyl rubber (12).

7. The non-perforated metal roof with a single-layer waterproof coiled material structure according to claim 5, characterized in that: The board top cover plate (11) is a metal plate, initially presenting a "C" shape with its mouth facing downwards. The board top cover plate (11) is buckled and installed on the top flat section of the board top and the top of the peak insulation strip (13) of the upright lock edge plate (10). After the buckling is completed, the upright lock edge plate (10) presents an "I"-shaped cross section.

8. The non-perforated metal roof with a single-layer waterproof coiled material structure according to claim 5, characterized in that: The top surface of the board top cover (11) is coated with adhesive in advance, and the adhesive is used to fix the exposed waterproofing membrane (1). The exposed waterproofing membrane (1) is laid perpendicular to the water flow direction. The hard base plane formed by the fireproof covering layer and the board top cover (11) can be bonded and fixed to the waterproofing membrane by a full bonding method.

9. The non-perforated metal roof with a single-layer waterproof coiled material structure according to claim 8, characterized in that: The surface of the board top cover plate (11) is treated with a special TPO coating, the roofing coil is fixed to the top of the board top cover plate (11) through the heated TPO coating, and the overlapping position of the exposed waterproof coil (1) is welded by hot air.

10. According to claim 9, the surface of the roof cover plate (11) is treated with a special TPO coating. After the exposed waterproof membrane (1) is laid, a continuous electromagnetic induction welding machine is used to heat the roof cover plate (11) in the full-length drainage direction using high-frequency welding technology. The heat is used to weld the roofing membrane to the roof cover plate (11) with a special coating, thereby achieving non-perforated mechanical fixation and forming a full-length stress belt corresponding to the wave crest position of the steel plate.

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