Roof structure and building comprising same

Abstract

The present invention provides a roof structure and a building comprising same. The roof structure comprises roof panels and a waterproof termination piece. Two roof panels are adjacent in a second direction, and incline upwards at a connecting position to form a ridge main body structure, and the ridge main body structure comprises slits formed between the two roof panels; the waterproof termination piece comprises a main body portion, and a first lap joint portion and a second lap joint portion which are located on two sides of the main body portion; the two roof panels are a first roof panel and a second roof panel; the first lap joint portion is in lap joint with the outer side surface of the first roof panel, the second lap joint portion is in lap joint with the outer side surface of the second roof plate, the main body portion extends to the second lap joint portion from the first lap joint portion along the inner side wall of the slit, and the main body portion forms a recess; and the recess is filled with an insulation material. The present invention improves the waterproof performance of the slit positions of the ridge main body structure, avoids water leakage at the slit positions, avoids the problem of cold bridge at the slit positions of the ridge main body structure, and improves the insulation performance of the roof structure.

Description

Roof structure and building thereof Technical Field

[0001] The present disclosure relates to the field of construction, and in particular to a roof structure and a building thereof. Background Art

[0002] With the progress and development of science and technology, metal has become a widely used material in the construction industry, especially in the metal roofing industry. Metal steel roofing has become the choice of many owners. However, the waterproofness of metal roofs has a greater impact on metal roofs.

[0003] Currently, the ridge joints of roof structures are poorly sealed, leading to water seepage at these joints, which can cause corrosion and damage to the roof panels. Furthermore, these joints are prone to forming cold and hot bridges, hindering energy conservation and consumption reduction in buildings. Summary of the Invention

[0004] The embodiments of the present disclosure provide a roof structure and a building thereof to solve or alleviate one or more technical problems in the prior art.

[0005] As a first aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides a roof structure, including:

[0006] Roof panels, wherein the two roof panels are adjacent to each other in the second direction, and the two roof panels are inclined upward at a connection position to form a ridge main structure, and the ridge main structure includes a slit formed between the two roof panels;

[0007] The waterproof closing member includes a main body and a first overlapping portion and a second overlapping portion located on both sides of the main body. The two roof panels are the first roof panel and the second roof panel. The first overlapping portion overlaps the outer surface of the first roof panel, and the second overlapping portion overlaps the outer surface of the second roof panel. The main body extends from the first overlapping portion along the inner side wall of the slit to the second overlapping portion, and the main body forms a groove.

[0008] Thermal insulation material is filled in the groove.

[0009] In some possible implementations, a metal cover plate is further included. The metal cover plate is extended along a first direction. The metal cover plate is located above the waterproof closing component and covers the groove. The first direction is perpendicular to the second direction.

[0010] In some possible implementations, the metal cover plate overlaps the first overlapping portion; and / or the metal cover plate overlaps the second overlapping portion.

[0011] In some possible implementations, the metal cover plate includes a first portion overlapping the first overlapping portion and a second portion overlapping the second overlapping portion;

[0012] The first part is fixed to the first overlapping portion and the first roof panel by a first fastener; or the second part is fixed to the second overlapping portion and the second roof panel by a second fastener.

[0013] In some possible implementations, a third waterproof covering sheet is further included. The third waterproof covering sheet is located on the upper side of the waterproof closing piece and extends along the first direction and covers the waterproof closing piece.

[0014] In some possible implementations, in the second direction, the waterproof closing member is located within the coverage of the third waterproof covering sheet, a preset gap is provided between the edge of the third waterproof covering sheet and the corresponding edge of the waterproof closing member, and the third waterproof covering sheet is sealed to the outer surface of the roof panel at the preset gap.

[0015] In some possible implementations, the roof panel includes a first waterproof layer located on the outer surface, the material of the first waterproof layer includes thermoplastic polyolefin, the material of the third waterproof covering sheet includes thermoplastic polyolefin, and the third waterproof covering sheet is connected to the first waterproof layer by hot air welding at a preset gap.

[0016] In some possible implementations, the width of the hot air welding connection is greater than 40 mm.

[0017] In some possible implementations, a metal cover plate is further included, which extends along the first direction. The metal cover plate is located above the waterproof closing member and covers the groove. The third waterproof covering sheet also covers the metal cover plate. The first direction is perpendicular to the second direction.

[0018] In some possible implementations, it also includes a first purlin and a second purlin, the first purlin is located on the lower side of the first roof panel, and the second purlin is located on the lower side of the second roof panel, the first purlin and the second purlin are both arranged along the first direction, the first direction is perpendicular to the second direction, the first purlin and the second purlin are both close to the slit, the first screw passes through the first roof panel and is fixedly connected to the first purlin, and the second screw passes through the second roof panel and is fixedly connected to the second purlin.

[0019] In some possible implementations, in a first direction, the roof panel includes a first end portion and a second end portion that are oppositely disposed, the first end portion includes a first region portion and a second region portion, the second region portion protrudes relative to the first region portion; the second end portion includes a third region portion and a fourth region portion, the third region portion protrudes relative to the fourth region portion, the third region portion matches the first region portion, and the second region portion matches the fourth region portion;

[0020] In the first direction, the two adjacent roof panels are the third roof panel and the fourth roof panel, the first end of the third roof panel is arranged opposite to the second end of the fourth roof panel, the third area portion is overlapped with the second area portion, the first screw passes through the corresponding third area portion and the second area portion and is fixedly connected to the first purlin, and the second screw passes through the corresponding third area portion and the second area portion and is fixedly connected to the second purlin.

[0021] In some possible implementations, the first area portion and the third area portion are located on the outside relative to the second area portion and the fourth area portion, the outer surface of the third area portion forms a recessed area relative to the outer surface of the main body of the roof panel, the upper end heads of the first screw and the second screw are both located in the recessed area, and the height of the upper end heads of the first screw and the second screw is less than the depth of the recessed area.

[0022] In some possible implementations, a second waterproof covering sheet is further included, which is arranged on the outer surface of the roof panel along the second direction. The multiple first screws and the multiple second screws are arranged along the second direction, and the second waterproof covering sheet covers the first screws and the second screws.

[0023] The technical solution of the embodiment of the present disclosure can achieve the following beneficial effects: in the roof structure of the embodiment of the present disclosure, the slit position is covered by the waterproof closing component, which improves the waterproof performance of the slit position of the main structure of the ridge, avoids water leakage at the slit position, and reduces the risk of corrosion damage to the roof panel. The groove is filled with insulation material to avoid the cold bridge problem at the slit position of the main structure of the ridge, and improves the thermal insulation performance of the roof structure.

[0024] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present disclosure will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments according to the present disclosure and should not be regarded as limiting the scope of the present disclosure.

[0026] FIG1 is a schematic diagram of a planar structure of a roof structure according to an embodiment of the present disclosure;

[0027] FIG2 is a partial schematic diagram of the cross-sectional structure of the roof structure in an embodiment of the present disclosure;

[0028] FIG3 is an enlarged schematic diagram of a partial structure of a roof structure according to an embodiment of the present disclosure;

[0029] FIG4 is a schematic diagram of a roof panel of a roof structure according to an embodiment of the present disclosure;

[0030] FIG5 is a schematic cross-sectional view of a roof panel of a roof structure according to an embodiment of the present disclosure;

[0031] FIG6 is a partial schematic diagram of the cross-sectional structure of the roof structure in an embodiment of the present disclosure;

[0032] FIG7 is an enlarged schematic diagram of a partial structure of the roof structure in an embodiment of the present disclosure. Explanation of Figure Numbers

[0033] 10. Roof panel; 20. Waterproof closing member; 30. Insulation material; 40. Metal cover plate; 50. Third waterproof covering sheet; 11. First waterproof layer; 12. Metal plate layer; 21. Main body; 22. First overlapping portion; 23. Second overlapping portion; 24. Groove; 41. First portion; 42. Second portion; 61. First purlin; 62. Second purlin; 63. First screw; 64. Second screw; 65. Second waterproof covering sheet; 110. First end portion; 120. Second end portion; 111. First regional portion; 112. Second regional portion; 121. Third regional portion; 122. Fourth regional portion; 10a. First roof panel; 10b. Second roof panel; 10c. Third roof panel; 10d. Fourth roof panel. DETAILED DESCRIPTION

[0034] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and description are to be considered as illustrative in nature and not restrictive.

[0035] Figure 1 is a schematic diagram of the planar structure of the roof structure in an embodiment of the present disclosure; Figure 2 is a schematic diagram of a partial cross-sectional structure of the roof structure in an embodiment of the present disclosure; and Figure 3 is an enlarged schematic diagram of a partial structure of the roof structure in an embodiment of the present disclosure. Figure 2 may be a sectional view taken along the line AA of Figure 1 , and Figure 3 may be an enlarged schematic diagram of a partial structure of Figure 2 . In one embodiment of the present disclosure, referring to Figures 1 to 3 , the roof structure includes a roof panel 10, a waterproof closing member 20, and a thermal insulation material 30. The two roof panels 10 are adjacent in the second direction Y, and the two roof panels 10 are inclined upward at the connection position to form a ridge main structure, and the ridge main structure includes a slit K formed between the two roof panels 10.

[0036] 2 and 3 , the waterproof closing member 20 includes a main body 21, a first overlapping portion 22, and a second overlapping portion 23. The first overlapping portion 22 and the second overlapping portion 23 are located on both sides of the main body 21. The two roof panels 10 are a first roof panel 10a and a second roof panel 10b. The first overlapping portion 22 overlaps the outer surface of the first roof panel 10a, and the second overlapping portion 23 overlaps the outer surface of the second roof panel 10b. The main body 21 extends from the first overlapping portion 22 along the inner side wall of the slit K to the second overlapping portion 23, and the main body 21 forms a groove 24. The thermal insulation material 30 is filled in the groove 24. The thermal insulation material may include thermal insulation cotton, which can be filled in the groove 24. The groove 24 can be completely filled with thermal insulation cotton.

[0037] It should be noted that the roof structure of the disclosed embodiments can be applied to the roof of a building. Here, "exterior" refers to the side facing the outside of the building, and "interior" refers to the side facing the inside of the building. For example, the waterproof seal 20 and the thermal insulation material are installed behind the main ridge structure. With respect to the thermal insulation material, the waterproof seal 20 is located on the side facing the inside of the building, while the thermal insulation material is located on the side facing the outside of the building.

[0038] In the roof structure of the disclosed embodiment, the waterproof seal 20 includes a main body 21 and first and second overlapping portions 22, 23 located on either side of the main body 21. The first overlapping portion 22 overlaps the outer surface of the first roof panel 10a, and the second overlapping portion 23 overlaps the outer surface of the second roof panel 10b. The main body 21 extends from the first overlapping portion 22 along the inner sidewall of the slot K to the second overlapping portion 23. The main body 21 forms a groove 24 filled with insulation material. In this roof structure, the slot K of the ridge structure is covered by the waterproof seal 20, improving the waterproof performance of the ridge structure at the slot, preventing water leakage at the slot, and reducing the risk of corrosion damage to the roof panel 10. Furthermore, the waterproof seal 20 is positioned corresponding to the slot, enhancing the aesthetics of the ridge. The waterproof seal 20 overlaps the outer surfaces of the first and second roof panels 10a, 10b via the first and second overlapping portions 22, 23, respectively, making installation simple and time-saving. The groove 24 is filled with thermal insulation material, which avoids the cold bridge problem at the opening position of the main ridge structure, prevents the formation of condensation water at the main ridge structure position, improves the thermal insulation performance of the roof structure, and is beneficial to energy saving and consumption reduction of the building.

[0039] As shown in Figures 1 and 2 , for example, two roof panels 10 are adjacent in the second direction and are typically arranged in mirror-symmetric fashion with respect to the length of the slit K. The two roof panels 10 are tilted upward at the connection point to form a main ridge structure. The main ridge structure has a trapezoidal cross-section, with the roof panels forming the inclined surface of the trapezoid. The slit K is located at the top of the trapezoid, and the side end surfaces of the two roof panels 10 form the inner wall of the slit K. The outer surfaces of the roof panels 10 are tilted relative to the horizontal plane, which facilitates water flow down the surface of the roof panels 10 and prevents water from accumulating on the roof panels, causing localized corrosion of the roof panels.

[0040] As shown in Figure 3, the main body 21 exemplarily includes a bottom wall and two side walls, each of which is connected to either side of the bottom wall to form a groove 24. The width of the bottom wall can be approximately equal to the width of the slot K, and the two side walls abut against the side end surfaces of the first roof panel 10a and the second roof panel 10b, respectively. The first overlapping portion 22 and the second overlapping portion 23 are each connected to one of the two side walls. The bottom wall of the main body 21 extends beyond the inner surface of the first roof panel 10a and the second roof panel 10b. The bottom wall can be flat or curved, and the shape of the bottom wall can be customized as needed.

[0041] As shown in Figure 3, for example, the first overlapping portion 22 of the waterproof closing member 20 overlaps the outer surface of the first roof panel 10a, the second overlapping portion 23 overlaps the outer surface of the second roof panel 10b, and the side walls of the main body 21 respectively fit in with the inner side walls of the slit K. As shown in Figure 1, the first overlapping portion 22 is relatively inclined and fits in with the first roof panel 10a on the left, the second overlapping portion 23 is relatively inclined and fits in with the second roof panel 10b on the right, and the inner side walls of the main body 21 respectively fit in with the adjacent side walls of the first roof panel 10a and the second roof panel 10b. The waterproof closing member 20 can completely seal the slit position of the main structure of the ridge, thereby improving the waterproof performance of the roof structure and enhancing the aesthetics of the slit position.

[0042] As shown in Figure 3, in one embodiment, the roof structure further includes a metal cover plate 40, which is arranged along a first direction X. The metal cover plate 40 is located above the waterproof closing member 20 and covers the groove 24, and the first direction X is perpendicular to the second direction Y. For example, the second direction Y is a vertical direction, and the first direction X is a horizontal direction. The metal cover plate 40 is arranged along a horizontal direction, and the metal cover plate 40 covers the opening position of the groove 24 to protect the thermal insulation material located in the groove 24. The metal cover plate 40 is located above the waterproof closing member 20 and covers the groove 24. The metal cover plate 40 can be snap-fitted and installed in the groove 24 and snap-fitted through the side wall of the groove 24, or the metal cover plate 40 can be partially overlapped on the first overlap portion 22 and / or the second overlap portion 23.

[0043] The roof structure of the embodiment of the present disclosure is provided with a metal cover plate 40 above the waterproof closing member 20, and the metal cover plate 40 covers the groove 24 of the waterproof closing member 20, so that the thermal insulation material 30 located in the groove 24 can be protected to avoid damage caused by people stepping on it, and the thermal insulation material 30 can also be isolated to prevent the thermal insulation material from directly contacting the external environment, which is beneficial to improving the service life of the thermal insulation material 30.

[0044] 3 , in one embodiment, the metal cover plate 40 overlaps the first overlapping portion 22, and the metal cover plate 40 overlaps the second overlapping portion 23. By overlapping the metal cover plate 40 with the first overlapping portion 22 and the second overlapping portion 23, the protective effect of the metal cover plate 40 on the groove 24 can be further enhanced.

[0045] In one embodiment, the metal cover plate 40 overlaps the first overlapping portion 22 , or the metal cover plate 40 overlaps the second overlapping portion 23 .

[0046] 3 , in one embodiment, the metal cover plate 40 includes a first portion 41 overlapping the first overlapping portion 22 and a second portion 42 overlapping the second overlapping portion 23. The first portion 41 is fixed to the first overlapping portion 22 and the first roof panel 10a via a first fastener M1.

[0047] The roof structure of the disclosed embodiment is achieved by securing the first portion 41 of the metal cover plate 40 to the first overlap portion 22 and the first roof panel 10a via a first fastener M1. Thus, the second portion 42 is not secured to the second overlap portion 23. When the first portion 41 and the second portion 42 are deformed inconsistently, the first portion 41 and the second portion 42 will not be torn apart, thereby preventing damage to the roof panel. It should be noted that the first fastener M1 may include a rivet, a self-tapping screw, a non-self-tapping screw, or other components that can perform a fixed connection function. For example, the first fastener M1 may be a rivet for ease of connection.

[0048] In one embodiment, the metal cover plate 40 includes a first portion 41 that overlaps the first overlapping portion 22 and a second portion 42 that overlaps the second overlapping portion 23. The second portion 42 is secured to the second overlapping portion 23 and the second roof panel 12 via a second fastener (not shown). It should be noted that the second fastener M1 may include a rivet, self-tapping screw, non-self-tapping screw, or other component capable of securing the connection. For example, the second fastener may be a self-tapping screw for easier connection.

[0049] The roof structure of the embodiment of the present disclosure is achieved by fixing the second part 42 of the metal cover plate 40 to the second overlap portion 23 and the second roof panel 12 through a second fastener, so that the first part 42 and the first overlap portion 23 are not fixed. When the deformation of the first part 41 and the second part 42 are inconsistent, the first part 41 and the second part 42 will not be torn, thereby avoiding damage to the roof panel.

[0050] 1 to 3 , in one embodiment, the roof structure further comprises a third waterproof covering sheet 50. The third waterproof covering sheet 50 is located above the waterproof closing member 20. The third waterproof covering sheet 50 extends along the first direction X and covers the waterproof closing member 20. Exemplarily, the third waterproof covering sheet 50 extends horizontally and covers the waterproof closing member 20. The third waterproof covering sheet 50 covers the groove 24 of the waterproof closing member 20. Two sides of the third waterproof covering sheet 50 can extend and overlap and securely connect to the first roof panel 10a and the second roof panel 10b, respectively.

[0051] As shown in Figure 3, for example, the two sides of the third waterproof covering sheet 50 can be bonded to the outer surface of the first roof panel 10a and the outer surface of the second roof panel 10b, respectively. The two sides of the third waterproof covering sheet 50 can also be connected by other sealing methods. With such a structure, the third waterproof covering sheet 50 can be arranged above the waterproof closing member 20 to achieve a complete seal at the ridge position. The third waterproof covering sheet 50 cooperates with the waterproof closing member 20 to form a sealed waterproof whole at the slit position, thereby preventing water seepage and leakage at the slit position of the main structure of the ridge, further improving the waterproof performance of the roof structure, and improving the bearing capacity, thermal insulation performance and sealing performance of the roof structure at the ridge position. In addition, the third waterproof covering sheet 50 can also protect the thermal insulation material located in the groove 24, preventing people from stepping on and damaging the thermal insulation material.

[0052] 3 , in one embodiment, in the second direction Y, the waterproof closing member 20 is located within the range of the third waterproof covering sheet 50 , a preset gap is provided between the edge of the third waterproof covering sheet 50 and the corresponding edge of the waterproof closing member 20 , and the third waterproof covering sheet 50 is sealed to the outer surface of the roof panel 10 at the preset gap.

[0053] In one embodiment, the roof panel 10 includes a first waterproof layer 11 located on the outer surface. The first waterproof layer 11 is made of thermoplastic polyolefin. The third waterproof cover sheet 50 is also made of thermoplastic polyolefin. The third waterproof cover sheet 50 is connected to the first waterproof layer 11 at a predetermined gap via hot-air welding. The third waterproof cover sheet 50 can be connected to the outer surface of the roof panel 10, i.e., the first waterproof layer 11, via hot-air welding. This connection is more secure and will not deteriorate due to weather and sun exposure. It prevents water leakage at the connection point between the third waterproof cover sheet 50 and the roof panel 10, further improving the waterproof performance of the roof structure.

[0054] Figure 4 is a schematic diagram of a roof panel of a roof structure according to an embodiment of the present disclosure. As shown in Figure 4 , for example, the roof panel 10 may include a metal sheet layer 12, with a first waterproof layer 11 attached to the outside of the metal sheet layer 12. The metal sheet layer 12 may include a metal plate, such as a steel plate or an aluminum plate. The first waterproof layer 11 is attached to the outside of the metal sheet layer 12. The material of the first waterproof layer 11 may include thermoplastic polyolefin (TPO), and the first waterproof layer 11 may be a TPO waterproof layer. The first waterproof layer 11 may be attached to the outer surface of the metal sheet layer 12 via an adhesive layer.

[0055] In one embodiment, the width of the hot-air welded connection is greater than 40 mm. The width of the hot-air welded connection can represent the effective dimension of the welded connection between the third waterproof cover sheet 50 and the first waterproof layer 11. Setting the width of the hot-air welded connection greater than 40 mm can ensure the structural strength and stability of the connection between the third waterproof cover sheet 50 and the first waterproof layer 11, prevent delamination between the third waterproof cover sheet 50 and the first waterproof layer 11, and improve the waterproof performance of the third waterproof cover sheet 50. For example, the width of the hot-air welded connection is 40 mm to 80 mm, and the width of the hot-air welded connection is 40 mm, 50 mm, 60 mm, 70 mm, or 80 mm. It should be noted that the specific width of the hot-air welded connection can be set according to actual usage requirements and is not limited here.

[0056] In one embodiment, the roof structure further includes a metal cover plate 40, which extends along a first direction X. The metal cover plate 40 is located above the waterproof closing member 20 and covers the groove 24. A third waterproof cover sheet 50 also covers the metal cover plate 40, with the first direction X being perpendicular to the second direction Y. The metal cover plate 40 is located above the waterproof closing member 20 and covers the groove 24. The metal cover plate 40 protects the insulation material 30 located within the groove 24, preventing damage caused by people stepping on it. It also isolates the insulation material 30 from direct contact with the external environment, thereby improving the service life of the insulation material 30. The third waterproof cover sheet 50 covers and protects the metal cover plate 40, preventing it from being corroded by liquids. The metal cover plate 40 and the third waterproof cover sheet 50 together form a protective system, further improving the waterproof performance of the roof structure.

[0057] As shown in FIG3 , in an exemplary embodiment, a third waterproof covering sheet 50 covers the metal cover plate 40. The side edges of the third waterproof covering sheet 50 extend beyond the side edges of the metal cover plate 40 in a first direction. A predetermined gap approximately equal to the thickness of the metal cover plate 40 is provided between the side edges of the third waterproof covering sheet 50 extending beyond the side edges of the metal cover plate 40 and the outer surface of the roof panel 10. The outer surface of the third waterproof covering sheet 50 is sealed at the predetermined gap. With this arrangement, the size of the predetermined gap can be set based on the thickness of the metal cover plate 40. The width of the hot air welding process is greater than 40 mm and can be set by the length of the third waterproof covering sheet 50 extending beyond the metal cover plate 40. This arrangement of the metal cover plate 40 facilitates the setting of the predetermined gap and the sealed connection size of the third waterproof covering sheet 50, facilitating installation of the third waterproof covering sheet.

[0058] In the roof structure of the embodiment of the present disclosure, the metal cover plate 40 is located above the waterproof closing member 20 and covers the groove 24, and the third waterproof covering sheet 50 covers the metal cover plate 40. On the one hand, the metal cover plate 40 can protect the thermal insulation material to avoid damage caused by people stepping on it. The metal cover plate 40 and the third waterproof covering sheet 50 form double waterproof protection for the slit, thereby improving the waterproof performance. In addition, the provision of the metal cover plate 40 further facilitates the installation of the third waterproof covering sheet 50.

[0059] 2 and 3 , in one embodiment, the roof structure further includes a first purlin 61 and a second purlin 62. The first purlin 61 is located on the underside of the first roof panel 10a, and the second purlin 62 is located on the underside of the second roof panel 10b. The first purlin 61 and the second purlin 62 are both arranged along a first direction X, which is perpendicular to the second direction Y. The first purlin 61 and the second purlin 62 are both located near the opening K. A first screw 63 passes through the first roof panel 10a and is fixedly connected to the first purlin 61. A second screw 64 passes through the second roof panel 10b and is fixedly connected to the second purlin 62.

[0060] Exemplarily, the roof structure includes a ridge cover plate, which is composed of a steel beam. The outer surface of the ridge cover plate is provided with ribs corresponding to the first purlin 61 and the second purlin 62. The first purlin 61 and the second purlin 62 each include a fixing portion and a bent portion located on both sides of the fixing portion and bent relative to the fixing portion, and the fixing portion and the rib are fixed by bolts and nuts. The first screw 63 passes through the first roof panel 10a and is fixedly connected to the bent portion on the outer side of the first purlin 61, and the second screw 64 passes through the second roof panel 10b and is fixedly connected to the bent portion on the outer side of the second purlin 62. With such an arrangement, the first roof panel 10a and the second roof panel 10b are fixedly connected by the first screw and the second screw after overlapping the bent portion, which facilitates the installation and disassembly of the roof panels.

[0061] Figure 5 is a schematic cross-sectional view of a roof panel of a roof structure according to an embodiment of the present disclosure, and Figure 6 is a schematic partial cross-sectional view of the roof structure according to an embodiment of the present disclosure. Figure 7 is an enlarged schematic partial view of the roof structure according to an embodiment of the present disclosure. Referring to Figure 5 , in one embodiment, in a first direction X, the roof panel 10 includes a first end portion 110 and a second end portion 120 disposed opposite each other. The first end portion 110 includes a first region portion 111 and a second region portion 112, with the second region portion 112 protruding relative to the first region portion 111. The second end portion 120 includes a third region portion 121 and a fourth region portion 122, with the third region portion 121 protruding relative to the fourth region portion 122. The third region portion 121 mates with the first region portion 111, and the second region portion 112 mates with the fourth region portion 122.

[0062] As shown in Figures 5 to 7 , for example, the second region 112 protrudes relative to the first region 111, forming a stepped surface between the second region 112 and the first region 111. The third region 121 protrudes relative to the fourth region 122, forming a stepped surface between the third region 121 and the fourth region 122. After the first end 110 and the second end 120 are butted together, the second region 112 and the third region 121 are arranged in an overlapping manner.

[0063] It should be noted that the third region 121 mates with the first region 111, and the second region 112 mates with the fourth region 122. It can be understood that when the second region 112 and the third region 121 are overlapped and connected, their opposing surfaces are parallel. For example, the third region 121 can mate with the side of the first region 111, with a sealing material provided between the third region 121 and the first region 111. The second region 112 can mate with the side of the fourth region 122, with a sealing material provided between the second region 112 and the fourth region 122. The upper surface of the second region 112 mates with the lower surface of the third region 121.

[0064] As shown in Figures 1, 6, and 7, two adjacent roof panels 10 are exemplarily shown in a first direction X, namely a third roof panel 10c and a fourth roof panel 10d. The first end 110 of the third roof panel 10c is disposed opposite the second end 120 of the fourth roof panel 10d. The third area 121 overlaps the second area 112, and the first screw 63 passes through the corresponding third and second areas 121, 112 to securely connect to the first purlin 61. The second screw 64 passes through the corresponding third and second areas 121, 112 to securely connect to the second purlin 62.

[0065] In the roof structure of the disclosed embodiment, the first end 110 of the third roof panel 10c is positioned opposite the second end 120 of the fourth roof panel 10d, with the third region 121 and the second region 112 overlapping each other. This simplifies installation of the roof panels, effectively reducing installation difficulty and improving construction efficiency. A first screw 63 penetrates the corresponding third region 121 and second region 112 to securely connect them to the first purlin 61, while a second screw 64 penetrates the corresponding third region 121 and second region 112 to securely connect them to the second purlin 62. This arrangement allows both the first screw 63 and the second screw 64 to simultaneously penetrate the metal sheeting on both sides of the roof panel, increasing connection strength, improving the wind-up resistance of the roof panel, and ensuring the stability of the roof structure.

[0066] As shown in Figures 6 and 7 , in one embodiment, the first and third regions 111 and 121 are located outside the second and fourth regions 112 and 122. The outer surface of the third region 121 forms a recessed area relative to the outer surface of the main body of the roof panel 10. The upper ends of the first and second screws 63 and 64 are both located within the recessed area, and the height of the upper ends of the first and second screws 63 and 64 is less than the depth of the recessed area. This arrangement allows the first and second screws 63 and 64 to be formed within the recessed area, eliminating the need for their upper ends to be directly exposed outdoors. This reduces the cold and thermal bridge effects between the first and second screws 63 and 64, and prevents the formation of condensation at the upper ends of the first and second screws 63 and 64.

[0067] 6 and 7 , in one embodiment, the roof structure further includes a second waterproof covering sheet 65 , which is disposed on the outer surface of the roof panel 10 along the second direction Y. The plurality of first screws 63 and the plurality of second screws 64 are arranged along the second direction Y, and the second waterproof covering sheet 65 covers the first screws 63 and the second screws 64 .

[0068] For example, the second waterproof covering sheet 65 comprises a thermoplastic polyolefin material, the roof panel 10 comprises a first waterproof layer, and the first waterproof layer comprises a thermoplastic polyolefin material. The second waterproof covering sheet 65 covers the first screw 63 and the second screw 64. The edges of the second waterproof covering sheet 65 are sealed to the first waterproof layer via hot-air welding. This arrangement allows the second waterproof covering sheet 65 to enclose the first screw 63 and the second screw 64 within a sealed space, preventing liquid from flowing toward the first screw 63 and the second screw 64. This further prevents water seepage at the location of the first screw 63 and the second screw 64, thereby further improving the waterproof performance of the roof structure.

[0069] An embodiment of the present disclosure further provides a building, comprising the roof structure of any embodiment of the present disclosure.

[0070] The roof structure of the above embodiment and other components of the building can adopt various technical solutions known to ordinary technicians in this field now and in the future, and will not be described in detail here.

[0071] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0072] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the present disclosure, "plurality" means two or more, unless otherwise specifically defined.

[0073] In this disclosure, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on specific circumstances.

[0074] In the present disclosure, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0075] The disclosure above provides many different embodiments or examples for implementing different structures of the present disclosure. In order to simplify the present disclosure, the components and settings of specific examples are described above. Of course, these are merely examples and are not intended to limit the present disclosure. In addition, the present disclosure may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0076] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in this disclosure, and such modifications or substitutions should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A roof structure, characterized in that: include: Roof panels, wherein two of the roof panels are adjacent to each other in the second direction, and the two roof panels are inclined upward at a connection position to form a ridge main structure, and the ridge main structure includes a slit formed between the two roof panels; The waterproof closing member includes a main body and a first overlapping portion and a second overlapping portion located on both sides of the main body, the two roof panels being a first roof panel and a second roof panel, the first overlapping portion overlapping the outer surface of the first roof panel, and the second overlapping portion overlapping the outer surface of the second roof panel, the main body extending from the first overlapping portion along the inner side wall of the slit to the second overlapping portion, and the main body forming a groove; The heat-insulating material is filled in the groove.

2. The roof structure according to claim 1, characterized in that It also includes a metal cover plate, which is extended along a first direction. The metal cover plate is located above the waterproof closing component and covers the groove. The first direction is perpendicular to the second direction.

3. The roof structure according to claim 2, characterized in that: The metal cover plate overlaps the first overlapping portion; and / or the metal cover plate overlaps the second overlapping portion.

4. The roof structure according to claim 3, characterized in that: The metal cover plate includes a first portion overlapping the first overlapping portion and a second portion overlapping the second overlapping portion; The first part is fixed to the first overlapping portion and the first roof panel by a first fastener; or the second part is fixed to the second overlapping portion and the second roof panel by a second fastener.

5. The roof structure according to claim 1, wherein: It also includes a third waterproof covering sheet, which is located on the upper side of the waterproof closing piece and extends along the first direction to cover the waterproof closing piece.

6. The roof structure according to claim 5, characterized in that: In the second direction, the waterproof closing member is located within the coverage range of the third waterproof covering sheet, a preset gap is provided between the edge of the third waterproof covering sheet and the corresponding edge of the waterproof closing member, and the third waterproof covering sheet is sealed to the outer surface of the roof panel in the preset gap.

7. The roof structure according to claim 6, characterized in that: The roof panel includes a first waterproof layer located on the outer surface, the material of the first waterproof layer includes thermoplastic polyolefin, the material of the third waterproof covering sheet includes thermoplastic polyolefin, and the third waterproof covering sheet is connected to the first waterproof layer at the preset gap by hot air welding.

8. The roof structure according to claim 7, characterized in that: The width of the hot air welding connection is greater than 40 mm.

9. The roof structure according to claim 5, characterized in that: It also includes a metal cover plate, which extends along a first direction. The metal cover plate is located above the waterproof closing member and covers the groove. The third waterproof covering sheet also covers the metal cover plate. The first direction is perpendicular to the second direction.

10. The roof structure according to claim 1, wherein: It also includes a first purlin and a second purlin, the first purlin is located on the lower side of the first roof panel, the second purlin is located on the lower side of the second roof panel, the first purlin and the second purlin are both arranged along a first direction, the first direction is perpendicular to the second direction, the first purlin and the second purlin are both close to the slit, a first screw passes through the first roof panel and is fixedly connected to the first purlin, and a second screw passes through the second roof panel and is fixedly connected to the second purlin.

11. The roof structure according to claim 10, characterized in that In a first direction, the roof panel includes a first end and a second end that are oppositely disposed, the first end including a first area portion and a second area portion, the second area portion protruding relative to the first area portion; the second end including a third area portion and a fourth area portion, the third area portion protruding relative to the fourth area portion, the third area portion matching the first area portion, and the second area portion matching the fourth area portion; In the first direction, the two adjacent roof panels are the third roof panel and the fourth roof panel, respectively. The first end of the third roof panel is arranged opposite to the second end of the fourth roof panel, the third area portion is overlapped with the second area portion, the first screw passes through the corresponding third area portion and the second area portion and is fixedly connected to the first purlin, and the second screw passes through the corresponding third area portion and the second area portion and is fixedly connected to the second purlin.

12. The roof structure according to claim 11, characterized in that The first area portion and the third area portion are located on the outside relative to the second area portion and the fourth area portion, and the outer surface of the third area portion forms a recessed area relative to the outer surface of the main body of the roof panel. The upper end heads of the first screw and the second screw are both located in the recessed area, and the height of the upper end heads of the first screw and the second screw is less than the depth of the recessed area.

13. The roof structure according to claim 10, wherein: It also includes a second waterproof covering sheet, which is arranged on the outer surface of the roof panel along the second direction. The first screws and the second screws are arranged along the second direction, and the second waterproof covering sheet covers the first screws and the second screws.

14. A building, characterized in that: The invention comprises a roof structure according to any one of claims 1 to 13.

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