Sloping roof system based on photovoltaic tile composite color stone metal tile

Abstract

The utility model discloses a sloping roof system based on a photovoltaic tile composite color stone metal tile, which comprises an extruded sheet thermal insulation layer arranged on a roof structure, an embedded part arranged in the extruded sheet thermal insulation layer, a reinforcing mesh arranged on the extruded sheet thermal insulation layer, a concrete thermal insulation layer arranged on the reinforcing mesh, and a tile keel assembly arranged on the concrete thermal insulation layer. Corresponding photovoltaic tiles and colored stone metal tiles are installed on the tile keel assemblies, first lap joint structures are formed between the upper sides and the lower sides of the photovoltaic tiles, second lap joint structures are formed between the left sides and the right sides of the photovoltaic tiles, and third lap joint structures are formed between the lower sides of the photovoltaic tiles and the colored stone metal tiles. A fourth lap joint structure is formed between the upper side of the photovoltaic tile and the colored stone metal tile, a fifth lap joint structure is formed between the left side of the photovoltaic tile and the colored stone metal tile, and a sixth lap joint structure is formed between the right side of the photovoltaic tile and the colored stone metal tile; the technical problems that an existing photovoltaic metal tile roof system is high in input cost and limited in application are effectively solved.

Description

Technical Field

[0001] This utility model belongs to the field of building roofing engineering technology, specifically, it relates to a sloping roof system based on photovoltaic tile composite colored stone metal tile. Background Technology

[0002] In the field of building roofing engineering, there exists a photovoltaic integrated metal roofing system. This system is a new type of building-integrated solution that combines photovoltaic panels with a metal roof (aluminum-magnesium-manganese alloy tiles). The integrated design organically combines the photovoltaic panels and the metal roof, maintaining the integrity and aesthetics of the building's appearance. However, this type of photovoltaic system has a high investment cost and limited application. Therefore, there is a need for a sloping roofing system based on photovoltaic tiles and composite colored stone metal tiles that can both ensure the functionality of the roofing project and meet aesthetic requirements while being easy to construct. Utility Model Content

[0003] The purpose of this invention is to provide a sloping roof system based on photovoltaic tiles and colored stone metal tiles that can both guarantee the functionality of the roof project and meet aesthetic requirements, while also being easy to construct. This application utilizes the advantages of colored stone metal tiles, such as high durability, good aesthetics, lightweight yet high strength, easy installation, environmental friendliness, and excellent economy, to combine colored stone metal tiles and photovoltaic tiles into one system. This replaces traditional aluminum-magnesium-manganese metal roofing or metal tile roofing, forming a novel sloping roof system combining photovoltaic tiles and colored stone metal tiles, effectively solving the technical problems of high investment costs and limited application of existing photovoltaic systems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The sloping roof system based on photovoltaic tile composite colored stone metal tile includes an extruded polystyrene (XPS) insulation layer on the roof structure, embedded parts within the XPS insulation layer, a steel mesh on the XPS insulation layer, a concrete insulation layer on the steel mesh, a tile joist assembly on the concrete insulation layer, and corresponding photovoltaic tiles and colored stone metal tiles installed on the tile joist assembly. A first overlap structure is formed between the upper and lower sides of the photovoltaic tiles; a second overlap structure is formed between the left and right sides of the photovoltaic tiles; a third overlap structure is formed between the lower side of the photovoltaic tile and the colored stone metal tile; a fourth overlap structure is formed between the upper side of the photovoltaic tile and the colored stone metal tile; a fifth overlap structure is formed between the left side of the photovoltaic tile and the colored stone metal tile; and a sixth overlap structure is formed between the right side of the photovoltaic tile and the colored stone metal tile. The roof structure includes a recessed ridge structure, a raised ridge structure, a roof-wall junction structure, a horizontal eaves structure, and a sloping eaves structure.

[0006] The tile joist assembly includes several parallel square tube columns set on the concrete protective layer, several parallel water-following strips set on the square tube columns, and several parallel tile-hanging strips set on the water-following strips.

[0007] The ridge structure is set at the ridge position. The ridge overlap structure includes a V-shaped gutter board. The included angle of the gutter board is the same as the included angle of the gutter at the ridge position. The gutter board is set on the corresponding water-following strip at the ridge position. There are gutter auxiliary purlins and auxiliary purlins between the gutter board and the water-following strip. There is an auxiliary plate between the gutter board and the corresponding colored stone metal tile. The auxiliary plate and the gutter board are connected to the auxiliary purlin of the auxiliary plate by self-tapping screws. The gutter board is connected to the gutter auxiliary purlin by self-tapping screws.

[0008] The ridge structure is set at the ridge position. The ridge overlapping structure includes ridge tiles, which are inverted V-shaped structures corresponding to the ridge position. The two sides of the ridge tiles are connected to the corresponding colored stone metal tiles at the ridge position by self-tapping screws. An additional purlin is set between the corresponding colored stone metal tiles at the ridge position and the corresponding tile keel assembly. The self-tapping screws pass through the ridge tiles, colored stone metal tiles and additional purlins in sequence. A sealant layer is set between the nail head of the self-tapping screw and the ridge tile.

[0009] The roof-wall junction structure includes roof siding and flashing. The flashing is connected to the wall with cement nails. The roof siding is installed on the colored stone metal tiles at the junction of the roof and the wall with self-tapping screws. A waterproof sealant layer is applied between the flashing and the wall, and sealant is applied to the nail heads of the cement nails.

[0010] The horizontal eaves structure includes an eaves board. The upper part of the eaves board is set between the colored stone metal tile and the tile joists at the horizontal eaves. The lower part of the eaves board is connected to the horizontal eaves by cement nails, and the nail heads of the cement nails are sealed with sealant.

[0011] The sloping eaves structure includes a gable panel and two gable sidings. The upper gable siding, together with the corresponding colored stone metal tile at the sloping eaves, is fixed to the end tile strip by external hexagonal self-tapping screws. The side gable siding is fixed to the sloping eaves by cement nails. The gable panel is positioned between the upper gable siding and the side gable siding.

[0012] The first overlapping structure includes a first fixing piece, which is connected to the side wall of the corresponding hanging strip of the lower row of photovoltaic tiles via self-tapping screws. The U-shaped groove of the first fixing piece locks the upper row of photovoltaic tiles. The second overlapping structure includes a fixing groove, the left end of which is connected to the right frame of the left photovoltaic tile, and the right end of which is connected to the left frame of the right photovoltaic tile. The third overlapping structure includes a third fixing piece, which is connected to the side wall of the hanging strip via self-tapping screws. The U-shaped groove of the third fixing piece locks the end of the lower colored stone metal tile, and the upper photovoltaic tile is connected to the third fixing piece. The fourth overlapping structure includes a fourth fixing piece, which is fixed to the side wall of the lower hanging strip. The U-shaped groove of the fourth fixing piece locks the end of the lower photovoltaic tile. An additional purlin is set on the corresponding water-running strip to support the upper colored stone metal tile, and the upper colored stone metal tile is connected to the additional purlin via self-tapping screws.

[0013] This utility model utilizes a roofing system composed of photovoltaic tiles and colored stone metal tiles. Compared to traditional roofing systems composed of photovoltaic tiles and aluminum-magnesium-manganese metal roofing sheets or matching metal tiles, it offers significant advantages in terms of raw material costs. The colored stone metal tiles have a simpler production process and lower mold costs, resulting in approximately half the raw material cost savings. Furthermore, it greatly reduces installation difficulty. The colored stone metal tiles can be custom-made to meet specific needs or cut on-site. Their relatively soft material, combined with embossed patterns, increases both flexibility and rigidity, facilitating on-site trimming and preventing deformation under foot traffic. In contrast, conventional matching metal tiles can only be custom-made and cannot be cut on-site, requiring higher installation precision. Therefore, this application offers wider applicability and better economic efficiency.

[0014] Furthermore, this invention ensures the overall aesthetic appeal of the colored stone metal tiles and photovoltaic tiles, reduces exposed nail holes, strengthens the integrity of the roofing system, and effectively improves the waterproofing function of the roofing system. This application also optimizes the connection nodes of the embedded parts, ensuring waterproofing and avoiding the potential leakage risks caused by excessive waterproofing joints on the columns. In addition, this application reduces the difficulty of joint finishing, decreases complex procedures, and ensures project quality. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the roofing system of this utility model.

[0016] Figure 2 This is a schematic diagram of the male spine structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the internal spine structure of this utility model.

[0018] Figure 4 This is a structural diagram of the roof and wall junction structure of this utility model.

[0019] Figure 5 This is a schematic diagram of the horizontal eaves structure of this utility model.

[0020] Figure 6 This is a schematic diagram of the sloping eaves structure of this utility model.

[0021] Figure 7 This is a structural schematic diagram of the roof lightning protection system of this utility model.

[0022] Figure 8 This is a schematic diagram of the first overlapping structure of this utility model.

[0023] Figure 9 This is a schematic diagram of the second overlapping structure of this utility model.

[0024] Figure 10 This is a schematic diagram of the third overlapping structure of this utility model.

[0025] Figure 11 This is a schematic diagram of the fourth overlapping structure of this utility model.

[0026] Figure 12 This is a schematic diagram of the fifth overlapping structure of this utility model.

[0027] Figure 13 This is a schematic diagram of the sixth overlapping structure of this utility model.

[0028] Figure 14 This is a structural schematic diagram of the mounting hook of this utility model.

[0029] Figure 15 This is a structural schematic diagram of the tile keel assembly of this utility model.

[0030] Figure 16 This is a structural schematic diagram of the embedded part of this utility model. Detailed Implementation

[0031] like Figure 1-16 As shown, the sloping roof system based on photovoltaic tile composite colored stone metal tile includes an extruded polystyrene insulation layer 1 on the roof structure, embedded parts 2 in the extruded polystyrene insulation layer 1, a steel mesh 4 on the extruded polystyrene insulation layer 1, a concrete insulation layer 3 on the steel mesh 4, a tile joist assembly on the concrete insulation layer 3, and corresponding photovoltaic tiles 9 and colored stone metal tiles 8 installed on the tile joist assembly. A first overlap structure is formed between the upper and lower sides of the photovoltaic tiles 9, a second overlap structure is formed between the left and right sides of the photovoltaic tiles 9, a third overlap structure is formed between the lower side of the photovoltaic tile 9 and the colored stone metal tile 8, a fourth overlap structure is formed between the upper side of the photovoltaic tile 9 and the colored stone metal tile 8, a fifth overlap structure is formed between the left side of the photovoltaic tile 9 and the colored stone metal tile 8, and a sixth overlap structure is formed between the right side of the photovoltaic tile 9 and the colored stone metal tile 8. The roof structure includes a ridge structure, a gable structure, a roof-wall junction structure, a horizontal eaves structure, and a sloping eaves structure.

[0032] The tile keel assembly includes several parallel square tube columns 7 set on the concrete protective layer, several parallel water-following strips 5 set on the square tube columns 7, and several parallel tile-hanging strips 6 set on the water-following strips 5.

[0033] The ridge structure is set at the ridge position. The ridge overlap structure includes a V-shaped gutter 10. The included angle of the gutter 10 is the same as the included angle of the ridge gutter. The gutter 10 is set on the corresponding water-following strip 5 at the ridge position. A gutter auxiliary purlin 11 and an auxiliary purlin 12 are set between the gutter 10 and the water-following strip 5. An auxiliary plate 13 is set between the gutter 10 and the corresponding colored stone metal tile 8. The auxiliary plate 13 and the gutter 10 are connected to the auxiliary purlin 12 by self-tapping screws. The gutter 10 is connected to the gutter auxiliary purlin 11 by self-tapping screws.

[0034] The ridge structure is set at the ridge position. The ridge overlapping structure includes ridge tile 14. The ridge tile 14 is an inverted V-shaped structure corresponding to the ridge position. The two sides of the ridge tile 14 are connected to the corresponding colored stone metal tile 8 at the ridge position by self-tapping screws. A roof ridge additional purlin 15 is set between the corresponding colored stone metal tile 8 at the ridge position and the corresponding tile keel assembly. The self-tapping screw passes through the ridge tile 14, the colored stone metal tile 8 and the roof ridge additional purlin 15 in sequence. A sealant layer is set between the nail head of the self-tapping screw and the ridge tile 14.

[0035] The roof and wall junction structure includes a roof siding 16 and a flashing 17. The flashing 17 is connected to the wall by cement nails. The roof siding 16 is installed on the colored stone metal tile 8 at the junction of the roof and the wall by self-tapping screws. A waterproof sealant layer is applied between the flashing 17 and the wall. The nail heads of the cement nails are covered with sealant.

[0036] The horizontal eaves structure includes an eaves board 18. The upper part of the eaves board 18 is set between the colored stone metal tile 8 and the tile keel assembly at the horizontal eaves. The lower part of the eaves board 18 is connected to the horizontal eaves by cement steel nails. The nail heads of the cement steel nails are equipped with sealant.

[0037] The sloping eaves structure includes a gable panel 19 and two gable sidings 20. The upper gable siding 20 is fixed to the end tile strip 6 along with the corresponding colored stone metal tile 8 at the sloping eaves using external hexagonal self-tapping screws. The side gable siding 20 is fixed to the sloping eaves with cement nails. The gable panel 19 is positioned between the upper gable siding 20 and the side gable siding 20.

[0038] The first overlapping structure includes a first fixing piece 21, which is connected to the side wall of the corresponding hanging strip 6 of the lower row of photovoltaic tiles 9 via self-tapping screws. The U-shaped slot of the first fixing piece 21 locks the upper row of photovoltaic tiles 9. The second overlapping structure includes a fixing slot 26, the left end of which is connected to the right frame of the left photovoltaic tile 9, and the right end of which is connected to the left frame of the right photovoltaic tile 9. The third overlapping structure includes a third fixing piece 22, which is connected to the hanging strip via self-tapping screws. On the side wall of 6, the U-shaped groove of the third fixing piece 22 locks the end of the lower colored stone metal tile 8, and the upper photovoltaic tile 9 is connected to the third fixing piece 22; the fourth overlapping structure includes a fourth fixing piece 23, which is fixed on the side wall of the lower hanging strip 6. The U-shaped groove of the fourth fixing piece 23 locks the end of the lower photovoltaic tile 9. An additional purlin 25 is set on the corresponding water-running strip 5 to support the upper colored stone metal tile 8. The upper colored stone metal tile 8 is connected to the additional purlin 25 by self-tapping screws.

[0039] In the actual construction process, this application first involves laying out the roof tiles to determine the keel layout and positioning. The layout design for the photovoltaic tiles (9) and colored stone metal tiles (8) is done in advance, along with the keel layout and positioning. Based on the dimensions of the standard photovoltaic tiles (9) and colored stone metal tiles (8), the layout method for both, as well as the module of the keel arrangement, is determined. The standard photovoltaic tile 9 is rectangular, with dimensions of 1508mm long * 420mm wide. Based on the dimensions of the photovoltaic tile 9, a square-patterned colored stone metal tile 8 of the same width is selected. The standard dimensions of the colored stone metal tile 8 are 1340mm * 420mm. The thickness of both the photovoltaic tile 9 and the colored stone metal tile 8 is ≥0.5mm. To ensure drainage requirements for the sloping roof, staggered edge pressing is used between photovoltaic tiles 9, between colored stone metal tiles 8, and between photovoltaic tiles 9 and colored stone metal tiles 8. Along the drainage direction, each layer of roof tiles is pressed 50mm, and after pressing, each tile is exposed 370mm wide. The layout design is based on a module of 370mm spacing between the tile strips 6. The drainage strips 5 are located below the tile strips 6, and the spacing between the drainage strips 5 is 600mm. After the roof tile layout design is completed, the roof tile embedded parts 2 need to be fabricated. Roof tile embedded parts 2 adopt a steel plate + anchor bar configuration. A 150mm*150mm*8mm galvanized steel plate is used as the welding surface for fixing the keel, and four 12mm diameter, 165mm long steel bars are used as anchor bars, which are welded to the steel plate through holes. Short steel bars of 50mm length are welded to the ends of the steel bars to increase the tensile strength of embedded parts 2. Then, the waterproof layer and insulation layer are constructed on the sloping roof, and the embedded parts 2 are pre-embedded and the insulation protective layer is poured.Specifically, the embedded part 2 is temporarily positioned and fixed to the extruded polystyrene (XPS) insulation layer 1 in the sloping roof building structure design. The thickness of the XPS board is selected according to the energy-saving design requirements. First, the XPS insulation layer 1 is laid. After the XPS insulation layer 1 is laid, the position of the embedded part 2 is marked out. Then, the end of the anchor bar of the embedded part 2 is inserted into the XPS insulation layer 1, and the positioning and elevation are adjusted to reserve the thickness of the concrete insulation layer 3, so that the surface of the embedded part 2 and the surface of the concrete protective layer are at the same elevation. Then, the steel mesh 4 in the concrete protective layer is laid, the protective layer thickness of the steel mesh 4 is adjusted, and the anchor bar of the embedded part 2 and the steel mesh 4 are temporarily tied and fixed to prevent the embedded part 2 from being misaligned during concrete pouring. Finally, the concrete protective layer is poured. The standard for controlling the longitudinal and transverse spacing of the embedded part 2 is as follows: the longitudinal spacing is the same as that of the water-cooling strip 5, the transverse spacing is 600mm, and the longitudinal spacing is ≤2500mm. The concrete protective layer is made of 70mm C25 fine stone concrete, with a single layer of bidirectional steel mesh ∅6@150 inside. Joints are set at ≤6m, with a joint width of 10mm, and polyurethane sealant is used to fill the joints to a depth of 10mm. Next, install the roof tile joist assembly. Specifically, first clean the embedded parts 2, then measure and lay out the lines, marking the ridge line and gutter line to ensure the angle on both sides of the sloping roof is consistent. Then adjust the embedded plates, install and weld the square tube columns 7, and check the weld quality and positional deviation. Next, weld and install the main joists. After the main joists are installed, weld and install the secondary joists. Finally, check the welding quality of the main and secondary joists and apply anti-rust paint to complete the installation of the tile joist assembly. The secondary joists use 30*30*2mm galvanized steel square tube battens 6. The standard spacing of the battens 6 is consistent with the module of the colored stone metal tiles 8 and photovoltaic tiles 9, with a spacing of 370mm. The height of the battens 6 at the eaves is greater than that at other locations. The battens 6 are made of galvanized steel square tubing with a specification of 50*30*2mm. The spacing of the battens 6 at the eaves is smaller than that at other parts. The main keel uses galvanized steel square tubing with a specification of 30*30*2mm and water-following strips 5 with a spacing of 600mm. The water-following strips 5 are welded and fixed to the embedded plate through square tubing columns 7. The square tubing columns 7 are used to adjust the elevation of the main keel and are made of galvanized square tubing with a specification of 30*50*2mm. When welding the main keel and secondary keel, manual arc welding or CO2 gas shielded welding is used. The welding current for manual arc welding is 130-160A and the welding voltage is 18-22V. The welding current for CO2 gas shielded welding is 220-280A and the welding voltage is 24-30V. After the installation of the sloping roof tile keel components is completed, the colored stone metal tiles 8 and photovoltaic tiles 9 are installed.Specifically, firstly, the colored stone metal tiles 8 at the eaves and ridge of the roof are installed. A fascia board 18 is installed at the eaves as a finishing board between the eaves gutter and the first row of colored stone metal tiles 8. The fascia board 18 is installed first, and steel nails are driven into its sides for fixation. The upper edge of the fascia board 18 overlaps the bottom first batten 6. Then, the colored stone metal tiles 8 are installed, and self-tapping screws are used to fix the bottom first row of colored stone metal tiles 8, along with the upper edge of the fascia board 18, to the batten 6. At the ridge, a gutter board 10 is installed, with the angle of the gutter board 10 corresponding to the gutter angle. Between the first row of colored stone metal tiles 8 extending to both sides from the bottom of the gutter and the gutter board 10, additional gutter purlins 11 and additional purlins 12 are installed. The gutter board 10 is located below the colored stone metal tiles 8 at the ridge. First, weld and fix the gutter purlin 11 and the attached plate purlin 12 to the runner 5. Then, fix the gutter plate 10 with self-tapping screws. Next, install the attached plate 13 on the attached plate purlin 12. Finally, install the first row of colored stone metal tiles 8 on the attached plate 13. Install each row of colored stone metal tiles 8 in sequence from the inner ridge to the outer ridge. The upper row of colored stone metal tiles 8 is connected to the adjacent row of colored stone metal tiles 8 below by connecting hooks. Install the colored stone metal tiles 8 layer by layer along the sloping roof in the order from right to left and from bottom to top until the junction of the photovoltaic tile 9 and the colored stone metal tile 8 is reached. Install the photovoltaic tile 9 on the row above the colored stone metal tile 8. First, fix the third fixing piece 22 to the side wall of the tile strip 6 with self-tapping screws. The U-shaped groove of the third fixing piece 22 holds the colored stone. Connect the photovoltaic tile 9 and the third fixing piece 22 to the end of the metal tile 8, and then install the photovoltaic tile 9 layer by layer upwards. When installing the photovoltaic tile 9, first determine the position of the photovoltaic tile 9 installation hooks, and install the installation hooks on the lower side of the photovoltaic tile 9. Each photovoltaic tile 9 is equipped with two hooks and four installation screws. After determining the position of the installation hooks, first lay out the bottom row of installation hooks. After completing the installation hooks of the entire row of photovoltaic tile 9, install the colored stone metal tile 8 on the right side of this row. After the colored stone metal tile 8 on the right side is installed, lay the photovoltaic tile 9 from right to left, so that the photovoltaic tile 9 falls into the groove of the installation hook. The left and right edges of the photovoltaic tile 9 are connected by the fixing slot 26, the upper edge overlaps the slot, and the lower edge forms a water guide channel for the drainage of roof water. Subsequently Lay the colored stone metal tile 8 on the left side of the photovoltaic tile 9. The colored stone metal tile 8 that overlaps with the photovoltaic tile 9 is fixed to the tile strip 6 with self-tapping screws. After the installation of the entire row of photovoltaic tiles 9 is completed, the next row is installed from bottom to top. The overlap distance between adjacent rows of photovoltaic tiles 9 is 45-60mm. Install the photovoltaic tiles 9 and the surrounding colored stone metal tiles 8 row by row from bottom to top until the installation reaches the junction of the upper and lower rows of colored stone metal tiles and photovoltaic tiles 9. At the junction, use self-tapping screws to fix the fourth fixing piece 23 to the side wall of the tile strip 6. The U-shaped groove of the fourth fixing piece 23 is used to lock the end of the photovoltaic tile 9 to fix the photovoltaic tile 9. An additional purlin 25 is set on the water-running strip 5 to support the colored stone metal tile 8, and the colored stone metal tile 8 is fixed to the additional purlin 25 with external hexagonal self-tapping screws.Then, continue installing the colored stone metal tiles 8 row by row from bottom to top. When the colored stone metal tiles 8 reach the ridge, disconnect from the ridge line and install a row of ridge tiles 14 on the ridge. Attach a ridge tile purlin to each side of the ridge tile 14 as a batten 6. The ridge tile purlins are welded and fixed to the runner strips 5. The ridge tiles 14 are made of the same material as the colored stone metal tiles 8. Next, when the roof tiles reach the junction with the wall, install the flashing 17 and roof siding 16 to facilitate finishing at the wall base. Specifically, when the colored stone metal tiles 8 reach the wall base, install the roof siding 16, fixing it to the batten strips 6 along with the colored stone metal tiles 8 using hexagonal self-tapping screws. Then install the flashing 17. The lower part of the flashing 17 is inserted into the end of the roof siding 16, and the upper part is fixed to the side wall with cement nails. The interface between the flashing 17 and the side wall is sealed with waterproof sealant. Then, when installing the roof tiles at the gable end of the eaves, gable siding 20 is set on the side of the eaves and the top of the colored stone metal tile 8. After all the colored stone metal tiles 8 are installed, the edges of the gable siding 19 of the eaves are sealed. The upper gable siding 20 is fixed to the end of the batten 6 along with the colored stone metal tile 8 with external hexagonal self-tapping screws. The side gable siding 20 is fixed to the eaves structure with cement nails. The area around the nails is sealed with sealant. Finally, the gable siding 19 is inserted into the upper and side gable siding 20 to complete the fixing of the gable siding 19. After the roof system is installed, lightning protection treatment should be applied to the photovoltaic tile 9 area and the colored stone metal tile 8 area. Specifically, for the photovoltaic tile 9 components, before installation, the connecting wires should be connected to the grounding holes on the frame of the photovoltaic tile 9. After installing a row of photovoltaic tiles 9, pull out the end of the connecting wire for that row of photovoltaic tiles 9 and connect the end of the connecting wire to the right frame of the overlapping photovoltaic tile 9. Before installing the next row of photovoltaic tiles 9, check whether the grounding hole connecting wires at both ends of this row of photovoltaic tiles 9 are connected. After confirming that they are connected, proceed with the installation. Install the next row of photovoltaic tiles 9. Connect the upper and lower rows of photovoltaic tiles 9 with connecting wires to create a conductive path between the frames of all rows of photovoltaic tiles 9, leading out a main bus that connects to the grounding flat iron, which is then led to the ground. For the lightning protection treatment of the roof area of ​​the colored stone metal tile 8, utilize the existing roof lightning protection grid or lightning rod, allowing the colored stone metal tile 8 to directly contact the lower batten 6. Weld the batten 6 and the lightning conductor 24 to fix it, directly serving as a lightning arrester, without needing to drill holes in the colored stone metal tile 8 to install a separate lightning protection grid. After the lightning protection treatment is completed, the roof system construction is finished.

[0040] This utility model uses a roofing system composed of photovoltaic tiles 9 and colored stone metal tiles 8. Compared with traditional roofing systems composed of photovoltaic tiles 9 and aluminum-magnesium-manganese metal roofing sheets or matching metal tiles, in terms of raw material costs, the colored stone metal tiles 8 have a simpler production process and lower mold costs, saving approximately half of the raw material costs. In terms of installation difficulty, it significantly reduces construction difficulty because the colored stone metal tiles 8 can be custom-made to meet specific needs or cut on-site. Their material is relatively soft, and the embossed shape increases their flexibility and rigidity, facilitating on-site trimming and ensuring they do not deform under foot traffic. Conventional matching metal tiles, on the other hand, can only be customized and cannot be cut on-site, requiring higher installation precision. Therefore, this application has wider applicability and better economic efficiency.

[0041] This utility model ensures the overall appearance of the colored stone metal tile 8 and photovoltaic tile 9, reduces exposed nail holes, strengthens the integrity of the roofing system, and effectively improves the waterproofing function of the roofing system. Furthermore, this application optimizes the connection nodes of the embedded parts 2, ensuring waterproofing and avoiding the potential for leakage caused by excessive waterproofing joints on the columns. In addition, this application reduces the difficulty of joint finishing, decreases complex procedures, and ensures project quality.

[0042] The above embodiments are only used to illustrate and not limit the technical solutions of this utility model. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the utility model without departing from the spirit and scope of the utility model. Any modifications or partial substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sloping roof system based on photovoltaic tile composite colored stone metal tile, characterized in that: The structure includes an extruded polystyrene (XPS) insulation layer on the roof structure, embedded parts within the XPS insulation layer, a steel mesh on the XPS insulation layer, a concrete insulation layer on the steel mesh, a roof joist assembly on the concrete insulation layer, and corresponding photovoltaic tiles and colored stone metal tiles installed on the roof joist assembly. The photovoltaic tiles form a first overlap between their upper and lower sides, a second overlap between their left and right sides, a third overlap between the lower side of the photovoltaic tile and the colored stone metal tile, a fourth overlap between the upper side of the photovoltaic tile and the colored stone metal tile, a fifth overlap between the left side of the photovoltaic tile and the colored stone metal tile, and a sixth overlap between the right side of the photovoltaic tile and the colored stone metal tile. The roof structure includes a recessed ridge structure, a raised ridge structure, a roof-wall junction structure, a horizontal eaves structure, and a sloping eaves structure. The tile joist assembly includes several parallel square tube columns set on the concrete protective layer, several parallel water-following strips set on the square tube columns, and several parallel tile-hanging strips set on the water-following strips.

2. The sloping roof system based on photovoltaic tile composite colored stone metal tile according to claim 1, characterized in that: The ridge structure is set at the ridge position. The ridge overlap structure includes a V-shaped gutter board. The included angle of the gutter board is the same as the included angle of the gutter at the ridge position. The gutter board is set on the corresponding water-following strip at the ridge position. There are gutter auxiliary purlins and auxiliary purlins between the gutter board and the water-following strip. There is an auxiliary plate between the gutter board and the corresponding colored stone metal tile. The auxiliary plate and the gutter board are connected to the auxiliary purlin of the auxiliary plate by self-tapping screws. The gutter board is connected to the gutter auxiliary purlin by self-tapping screws.

3. The sloping roof system based on photovoltaic tile composite colored stone metal tile according to claim 2, characterized in that: The ridge structure is set at the ridge position. The ridge overlapping structure includes ridge tiles, which are inverted V-shaped structures corresponding to the ridge position. The two sides of the ridge tiles are connected to the corresponding colored stone metal tiles at the ridge position by self-tapping screws. An additional purlin is set between the corresponding colored stone metal tiles at the ridge position and the corresponding tile keel assembly. The self-tapping screws pass through the ridge tiles, colored stone metal tiles and additional purlins in sequence. A sealant layer is set between the nail head of the self-tapping screw and the ridge tile.

4. The sloping roof system based on photovoltaic tile composite colored stone metal tile according to claim 3, characterized in that: The roof-wall junction structure includes roof siding and flashing. The flashing is connected to the wall with cement nails. The roof siding is installed on the colored stone metal tiles at the junction of the roof and the wall with self-tapping screws. A waterproof sealant layer is applied between the flashing and the wall, and sealant is applied to the nail heads of the cement nails.

5. The sloping roof system based on photovoltaic tile composite colored stone metal tile according to claim 4, characterized in that: The horizontal eaves structure includes an eaves board. The upper part of the eaves board is set between the colored stone metal tile and the tile joists at the horizontal eaves. The lower part of the eaves board is connected to the horizontal eaves by cement nails, and the nail heads of the cement nails are sealed with sealant.

6. The sloping roof system based on photovoltaic tile composite colored stone metal tile according to claim 5, characterized in that: The sloping eaves structure includes a gable panel and two gable sidings. The upper gable siding, together with the corresponding colored stone metal tile at the sloping eaves, is fixed to the end tile strip by external hexagonal self-tapping screws. The side gable siding is fixed to the sloping eaves by cement nails. The gable panel is positioned between the upper gable siding and the side gable siding.

7. The sloping roof system based on photovoltaic tile composite colored stone metal tile according to claim 6, characterized in that: The first overlapping structure includes a first fixing piece, which is connected to the side wall of the corresponding hanging strip of the lower row of photovoltaic tiles via self-tapping screws. The U-shaped groove of the first fixing piece locks the upper row of photovoltaic tiles. The second overlapping structure includes a fixing groove, the left end of which is connected to the right frame of the left photovoltaic tile, and the right end of which is connected to the left frame of the right photovoltaic tile. The third overlapping structure includes a third fixing piece, which is connected to the side wall of the hanging strip via self-tapping screws. The U-shaped groove of the third fixing piece locks the end of the lower colored stone metal tile, and the upper photovoltaic tile is connected to the third fixing piece. The fourth overlapping structure includes a fourth fixing piece, which is fixed to the side wall of the lower hanging strip. The U-shaped groove of the fourth fixing piece locks the end of the lower photovoltaic tile. An additional purlin is set on the corresponding water-running strip to support the upper colored stone metal tile, and the upper colored stone metal tile is connected to the additional purlin via self-tapping screws.

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