Roof structure and building

Abstract

Provided are a roof structure and a building. The roof structure comprises: a roof panel (1), abutting against a gable (6) of a building; a flashing panel (2), arranged at the junction of the roof panel (1) and the gable (6), the flashing panel (2) comprising a first sub-panel (21) and a second sub-panel (22) which are connected to each other, the first sub-panel (21) covering the top of the roof panel (1) and being connected to the roof panel (1) by means of a first screw (31), and the second sub-panel (22) abutting against a surface of the gable (6); and a membrane covering piece (4), located on the outside of the roof panel (1) and the first sub-panel (21), the membrane covering piece (4) at least covering the first screw (31), and an edge portion of the membrane covering piece (4) being sealingly connected to the flashing panel (2) and / or the roof panel (1). The waterproof performance of the roof structure is improved, thereby improving the overall stability of the roof structure.

Description

Roof structure and building

[0001] This disclosure claims priority to Chinese patent application number CN2023218510198 filed on July 14, 2023. Technical Field

[0002] The present disclosure relates to the field of construction, and in particular to a roof structure and a building. Background Art

[0003] 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.

[0004] Metal roofs consist of a roof deck, which is typically connected to the gables with a flashing for waterproofing. The flashing is secured to the roof deck or gables with rivets. Exposure to wind and sun can cause the rivets to loosen, age, and corrode, leading to separation of the flashing from the roof deck, compromising the waterproofing at the junction of the roof deck and gables, and ultimately, the overall waterproofing performance of the roof.

[0005] Summary of the Invention

[0006] The embodiments of the present disclosure provide a roof structure and a building to solve or alleviate one or more technical problems in the prior art.

[0007] An embodiment of the present disclosure provides a roof structure, comprising:

[0008] Roof slab, facing the gable of the building;

[0009] A flashing plate is provided at the junction of the roof plate and the gable, and includes a first sub-plate and a second sub-plate connected to each other, wherein the first sub-plate covers the roof plate and is connected to the roof plate by a first screw, and the second sub-plate is abutted against the surface of the gable;

[0010] The roll covering sheet is located outside the roof panel and the first sub-panel, covers at least the first screw, and the edge of the roll covering sheet is sealed with the flashing board and / or the roof panel.

[0011] In some embodiments, the edge portion of the roll cover sheet is connected to the flashing plate by hot air welding.

[0012] In some embodiments, the edge portions of the roll cover sheet are connected to the roof decking by hot air welding.

[0013] In some embodiments, a portion of the rolled covering sheet covers the surface of the first sub-board, and another portion covers the surface of the roof panel. A portion of the edge of the rolled covering sheet is connected to the surface of the first sub-board by hot air welding, and a portion of the edge of the rolled covering sheet is connected to the surface of the roof panel by hot air welding. A closed waterproof area is formed between the rolled covering sheet, the first sub-board, and the roof panel, and the first screw is located in the waterproof area.

[0014] In some embodiments, the roof panel includes a crest portion and a trough portion connected to each other along a direction close to the gable, the crest portion protrudes upward relative to the trough portion, and the first sub-panel is connected to the crest portion by a first screw.

[0015] In some embodiments, the trough portion includes a first trough portion close to the gable, the crest portion is located on a side of the first trough portion away from the gable, and the first sub-panel covers the first trough portion and the crest portion.

[0016] In some embodiments, the roof panel also includes a second trough portion located on the other side of the crest portion, and the rolled covering sheet extends downward from the surface of the first sub-panel to the surface of the second trough portion, and a portion of the edge portion of the rolled covering sheet is connected to the surface of the first sub-panel by hot air welding, and a portion of the edge portion of the rolled covering sheet is connected to the surface of the second trough portion by hot air welding.

[0017] In some embodiments, a portion of the first sub-plate between the first screw and the gable is flat.

[0018] In some embodiments, the first screw comprises a self-tapping screw.

[0019] In some embodiments, the second sub-panel is fixed to the gable by a second screw, and the roof structure further includes a shielding plate, the second sub-panel is located between the gable and the shielding plate, and the shielding plate covers the second screw.

[0020] In some embodiments, the roof panel includes a first metal plate layer and a first waterproof layer attached to the outer side of the first metal plate layer, and the material of the first waterproof layer is thermoplastic polyolefin.

[0021] In some embodiments, the flashing plate includes a second metal plate layer and a second waterproof layer attached to the outer side of the second metal plate layer, and the material of the second waterproof layer is thermoplastic polyolefin.

[0022] In some embodiments, the web cover sheet is made of thermoplastic polyolefin.

[0023] An embodiment of the present disclosure further provides a building comprising the roof structure of the present disclosure.

[0024] In the roof structure of the disclosed embodiment, a rolled material covering sheet is disposed on the outside of the roof panel and the first sub-panel. The rolled material covering sheet covers at least the first screw, and the edge of the rolled material covering sheet is sealed to the flashing and / or roof panel. Thus, the area covered by the rolled material covering sheet forms a sealed waterproof zone, and the first screw is located within this waterproof zone. This prevents water from entering the first screw, preventing rust on the first screw and improving the waterproof performance of the roof structure. The first screw's location within the sealed waterproof zone protects the first screw from the effects of wind and sun, preventing it from loosening, aging, and corrosion, thereby increasing its structural strength and enhancing the overall stability of the roof structure.

[0025] 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

[0026] 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.

[0027] FIG1 is a partial schematic diagram of a roof structure in one embodiment of the present disclosure.

[0028] Description of reference numerals:

[0029] 1. Roof board; 11. First trough; 12. Peak; 13. Second trough; 2. Flashing board; 21. First sub-board; 22. Second sub-board; 31. First screw; 32. Second screw; 4. Rolled covering sheet; 5. Shielding board; 6. Gable. DETAILED DESCRIPTION

[0030] 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.

[0031] In the related art, in roof structures, flashing is used to connect the roof panels and gables to achieve waterproofing. The flashing is fixed to the roof panels or gables with rivets. Rivets are prone to rust in the natural environment, affecting the roof's waterproofing performance. The rivet-fixed connection does not completely seal the flashing and roof panels. This incomplete seal between the flashing and roof panels can easily lead to a siphon effect during use, causing water to seep at the connection point between the flashing and roof panels, reducing the waterproofing performance of the roof structure. In addition, when the rivets are corroded by water, their own strength decreases, resulting in a decrease in the roof's wind resistance, which can easily lead to damage at the connection point, reducing the strength and wind resistance of the roof structure.

[0032] To address the problems existing in the related art, embodiments of the present disclosure provide a roof structure. Typically, a building includes a wall, the wall including a first gable extending along a first direction and a second gable extending along a second direction, and the roof structure is located on top of the building. The first direction may be the length of the building, and the second direction may be the width of the building; alternatively, the first direction may be the width of the building, and the second direction may be the length of the building.

[0033] Figure 1 is a partial schematic diagram of a roof structure according to an embodiment of the present disclosure. As shown in Figure 1 , the roof structure may include a roof deck 1, a flashing 2, and a roll-up covering sheet 4. The roof deck 1 abuts a gable 6 of a building. The gable 6 may extend along the length or width of the building.

[0034] As shown in Figure 1, flashing board 2 is positioned at the junction of roof panel 1 and gable 6. Flashing board 2 comprises a first sub-panel 21 and a second sub-panel 22, which are interconnected. First sub-panel 21 overlies roof panel 1 and is connected to roof panel 1 via first screws 31. Second sub-panel 22 abuts against the surface of gable 6. A roll covering sheet 4 is positioned outside roof panel 1 and first sub-panel 21, covering at least first screws 31. The edge of roll covering sheet 4 is sealed to flashing board 2 and / or roof panel 1.

[0035] Exemplarily, the edge portion of the roll covering sheet 4 is sealed and connected to the flashing board 2 and / or the roof panel 1. It can be understood that the edge portion of the roll covering sheet 4 located on the surface of the flashing board 2 can be sealed and connected to the surface of the flashing board 2, and / or the edge portion of the roll covering sheet 4 located on the surface of the roof panel 1 can be sealed and connected to the surface of the roof panel 1.

[0036] It should be noted that the roof structure in the embodiments of the present disclosure is applied to the roof of a building. Here, "exterior" refers to the side facing the interior of the building, and "interior" refers to the side facing away from the building. For example, after the roof panel 1 is applied to the roof structure, the waterproof layer is located on the side facing away from the building, while the metal layer is located on the side facing the interior.

[0037] The sealed connection creates a sealed waterproof zone within the covered area of ​​the roll cover sheet 4. The first screw 31 is located within this waterproof zone, preventing water from entering the first screw 31 and rusting it, thereby improving the waterproof performance of the roof structure. The first screw 31 is located within the sealed waterproof zone, protecting it from the elements, including wind and sun, preventing it from loosening, aging, and corrosion, and thus enhancing its structural strength.

[0038] In the disclosed embodiment, the edge of the roll covering sheet 4 is connected to the flashing board 2 and / or roof panel 1 via hot-air welding. Specifically, the edge of the roll covering sheet 4 located on the surface of the first sub-panel 21 is connected to the surface of the first sub-panel 21 via hot-air welding, and the edge of the roll covering sheet 4 located on the surface of the roof panel 1 is connected to the surface of the roof panel 1 via hot-air welding. Hot-air welding achieves a sealed connection and is less susceptible to degradation due to the natural environment, ensuring the reliability and stability of the connection and extending the life of the roof structure. In other embodiments, the edge of the roll covering sheet 4 can be sealed to the flashing board 2 and / or roof panel 1 via other connection methods, such as adhesive bonding.

[0039] In one embodiment, as shown in Figure 1, a portion of the roll cover sheet 4 covers the surface of the first sub-panel 21, while another portion of the roll cover sheet 4 covers the surface of the roof panel 1. The roll cover sheet 4 extends from the surface of the first sub-panel 21 to the surface of the roof panel 1. A portion of the edge of the roll cover sheet 4 is hot-air welded to the surface of the first sub-panel 21, and a portion of the edge of the roll cover sheet 4 is hot-air welded to the surface of the roof panel 1. This structure creates a sealed, waterproof area between the roll cover sheet 4, the first sub-panel 21, and the roof panel 1, and the first screw 31 is located within the sealed, waterproof area. At the same time, the roll covering sheet 4 also covers the junction between the first sub-board 21 and the roof panel 1. Therefore, the junction between the first sub-board 21 and the roof panel 1 is also located in the closed waterproof area formed by the roll covering sheet 4, which not only prevents water from penetrating through the first screw 31, but also prevents water from penetrating through the junction between the first sub-board 21 and the roof panel 1. The roof panel 1, the flashing board 2 and the roll covering sheet 4 form a waterproof whole, further improving the waterproof performance of the roof structure.

[0040] The first screw 31 can be a rivet, a self-tapping screw, a non-self-tapping screw, or other components that can play a role in fixing and connecting. For example, in order to facilitate installation and connection, the first screw 31 is a self-tapping screw.

[0041] In one embodiment, the roof panel 1 may include a first metal sheet layer and a first waterproof layer attached to the outside of the first metal sheet layer. The flashing 2 may include a second metal sheet layer and a second waterproof layer attached to the outside of the second metal sheet layer.

[0042] For example, the first waterproof layer can be made of thermoplastic polyolefin (TPO) and can be attached to the outside of the first metal sheet layer. The first waterproof layer can be a TPO waterproof layer. When the roof panel 1 is applied to the roof structure, the first metal sheet layer faces the interior of the building, and the first waterproof layer faces the exterior of the building.

[0043] The second waterproof layer can be made of thermoplastic polyolefin. The second waterproof layer can be attached to the outside of the second metal sheet layer. The second waterproof layer can be a TPO waterproof layer. When the flashing board 2 is applied to the roof structure, the second metal sheet layer faces the interior of the building, while the second waterproof layer faces the exterior of the building.

[0044] The first metal plate layer may include a first metal plate, which may be a steel plate or an aluminum plate, etc. The second metal plate layer may include a second metal plate, which may be a steel plate or an aluminum plate, etc.

[0045] The material of the roll covering sheet 4 may include thermoplastic polyolefin, and the roll covering sheet 4 may be made of TPO waterproof roll material.

[0046] In one embodiment, the roof panel 1 may be flat.

[0047] In one embodiment, the roof panel 1 may be a fused tile. In order to enhance the structural stability and load-bearing capacity of the roof panel 1, the flat roof panel 1 may be profiled to form a concave-convex or wavy structure in the transverse direction of the roof panel 1.

[0048] As shown in Figure 1, the roof panel 1 includes a peak portion 12 and a trough portion that are connected to each other along the direction close to the gable 6. In this embodiment, the trough portion includes a first trough portion 11 close to the gable 6. The peak portion 12 is located on the side of the first trough portion 11 away from the gable 6. The first sub-panel 21 covers the first trough portion 11 and the peak portion 12. The peak portion 12 bulges upward relative to the trough portion, and the trough portion is recessed downward relative to the peak portion 12. The first sub-panel 21 is connected to the peak portion 12 by a first screw 31. The peak portion 12 bulges upward relative to the first trough portion 11, that is, the peak portion 12 is higher than the first trough portion 11, so that the peak portion 12 is not easy to accumulate water. The first screw 31 is set at the peak portion 12, which can avoid water accumulation in the area where the first screw 31 is located, and can effectively prevent liquid from penetrating into the first screw 31, further improving the waterproof performance of the roof structure.

[0049] As shown in FIG1 , the roof panel 1 also includes a second trough 13 located on the other side of the crest 12. In FIG1 , the first trough 11 is located on the left side of the crest 12, and the second trough 13 is located on the right side of the crest 12. The roll cover sheet 4 can extend from the surface of the first sub-panel 21 to the surface of the second trough 13. A portion of the edge of the roll cover sheet 4 is hot-air welded to the surface of the first sub-panel 21, and a portion of the edge of the roll cover sheet 4 is hot-air welded to the surface of the second trough 13. In other words, the edge of the roll cover sheet 4 located on the surface of the first sub-panel 21 is hot-air welded to the surface of the first sub-panel 21, and the edge of the roll cover sheet 4 located on the surface of the second trough 13 is hot-air welded to the surface of the second trough 13. This allows liquid to flow along the roll cover sheet 4 to the second trough 13, facilitating liquid drainage and reducing liquid accumulation.

[0050] As shown in Figure 1 , the portion of the first sub-panel 21 between the first screw 31 and the gable 6 can be flat. This structure ensures the flatness of the roof structure near the gable 6. In other embodiments, the first sub-panel 21 can be tilted downward from the gable 6 toward the portion between the first screw 31, further facilitating liquid flow toward the second trough 13 and preventing water accumulation at the junction of the roof structure and the gable 6.

[0051] In one embodiment, as shown in Figure 1 , the second sub-panel 22 is secured to the gable 6 via second screws 32. The roof structure may further include a shielding plate 5, with the second sub-panel 22 positioned between the gable 6 and the shielding plate 5, and the shielding plate 5 covering the second screws 32. This structure prevents rainwater from seeping through the second screws 32, further improving the waterproof performance of the roof structure. For example, the gable 6 may include a keel, and the second sub-panel 22 may be secured to the keel of the gable 6 via the second screws 32.

[0052] The second screw 32 may include a rivet, a self-tapping screw, a non-self-tapping screw, or other components that can play a role in fixing and connecting. For example, the second screw 32 may be a self-tapping screw, which facilitates installation and connection.

[0053] It should be noted that the flashing 2 can be in the form of a strip extending along the length of the gable 6 (perpendicular to the page in Figure 1 ), and the first sub-panel 21 of the flashing 2 can be connected to the roof panel 1 via multiple first screws 31. For example, one first screw 31 can correspond to one roll covering sheet 4, meaning one roll covering sheet 4 covers one first screw 31. Alternatively, multiple first screws 31 can share one roll covering sheet 4, meaning the roll covering sheet 4 can be in the form of a strip extending along the length of the flashing 2, allowing one roll covering sheet 4 to simultaneously cover multiple first screws 31. The specific shape and size of the roll covering sheet can be customized as needed, as long as the roll covering sheet covers the first screws and the edges of the roll covering sheet are connected to the flashing and / or roof panel via hot-air welding.

[0054] In the roof structure of the disclosed embodiment, a roll covering sheet 4 is provided above the roof panel 1 and the first sub-panel 21. The roll covering sheet 4 covers at least the first screw 31, and the edge of the roll covering sheet 4 is sealed with the flashing 2 and / or the roof panel 1. Thus, the area covered by the roll covering sheet 4 forms a sealed waterproof zone, and the first screw 31 is located within this waterproof zone. This prevents water from entering the first screw 31, prevents rust on the first screw 31, and improves the waterproof performance of the roof structure. Furthermore, the first screw 31 is located within the sealed waterproof zone, protecting the first screw 31 from the effects of wind and sun in the natural environment, preventing the first screw 31 from loosening, aging, and corrosion, and improving the structural strength of the first screw 31, thereby improving the wind resistance of the roof structure and the overall stability of the roof structure.

[0055] In addition, a portion of the roll covering sheet 4 is located on the surface of the first sub-board 21 and covers the first screw 31, and another portion of the roll covering sheet 4 is located on the surface of the roof panel 1, so that the roll covering sheet 4 covers the first screw 31 while also covering the junction between the first sub-board 21 and the roof panel 1, so that the flashing board 2 and the roof panel 1 form a closed whole through the roll covering sheet 4, which not only improves the waterproof performance but also effectively prevents dust.

[0056] An embodiment of the present disclosure further provides a building, comprising the roof structure of any embodiment of the present disclosure.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] The disclosure above provides many different embodiments or examples for implementing different structures of the present disclosure. In order to simplify the disclosure of 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.

[0062] 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 slab, against the gable of the building; A flashing plate is arranged at the junction of the roof plate and the gable, the flashing plate comprises a first sub-plate and a second sub-plate connected to each other, the first sub-plate covers the top of the roof plate and is connected to the roof plate by a first screw, and the second sub-plate is attached to the surface of the gable; A roll covering sheet is located outside the roof panel and the first sub-panel, the roll covering sheet at least covers the first screw, and the edge of the roll covering sheet is sealed and connected to the flashing board and / or the roof panel.

2. The roof structure according to claim 1, characterized in that: The edge of the coiled cover sheet is connected to the flashing plate by hot air welding.

3. The roof structure according to claim 1, characterized in that: The edge of the coiled covering sheet is connected to the roof panel by hot air welding.

4. The roof structure according to claim 1, characterized in that: A portion of the rolled material covering sheet covers the surface of the first sub-board, and another portion covers the surface of the roof board. A portion of the edge of the rolled material covering sheet is connected to the surface of the first sub-board by hot air welding, and a portion of the edge of the rolled material covering sheet is connected to the surface of the roof board by hot air welding. A closed waterproof area is formed between the rolled material covering sheet, the first sub-board, and the roof board, and the first screw is located in the waterproof area.

5. The roof structure according to claim 1, characterized in that: The roof panel includes a peak portion and a trough portion connected to each other along a direction close to the gable, the peak portion protrudes upward relative to the trough portion, and the first sub-panel is connected to the peak portion by the first screw.

6. The roof structure according to claim 5, characterized in that: The trough portion includes a first trough portion close to the gable, the crest portion is located on a side of the first trough portion away from the gable, and the first sub-plate covers the first trough portion and the crest portion.

7. The roof structure according to claim 6, characterized in that: The roof panel also includes a second trough portion located on the other side of the crest portion, the coiled material covering sheet extends downward from the surface of the first sub-panel to the surface of the second trough portion, a portion of the edge of the coiled material covering sheet is connected to the surface of the first sub-panel by hot air welding, and a portion of the edge of the coiled material covering sheet is connected to the surface of the second trough portion by hot air welding.

8. The roof structure according to claim 1, characterized in that: A portion of the first sub-plate between the first screw and the gable is flat.

9. The roof structure according to claim 1, characterized in that: The first screw comprises a self-tapping screw.

10. The roof structure according to claim 1, characterized in that: The second sub-board is fixed to the gable by a second screw, and the roof structure further comprises a shielding plate, the second sub-board is located between the gable and the shielding plate, and the shielding plate covers the second screw.

11. The roof structure according to claim 1, characterized in that: The roof panel includes a first metal plate layer and a first waterproof layer attached to the outer side of the first metal plate layer, and the material of the first waterproof layer is thermoplastic polyolefin.

12. The roof structure according to claim 1, characterized in that: The flashing plate includes a second metal plate layer and a second waterproof layer attached to the outer side of the second metal plate layer, and the material of the second waterproof layer is thermoplastic polyolefin.

13. The roof structure according to claim 1, characterized in that: The material of the coiled material covering sheet is thermoplastic polyolefin.

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

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