RU2745262C1 - Assembly connecting structure of roofing panels, eavy panels and wall plates and the method of its connection - Google Patents

Abstract

FIELD: roofing.SUBSTANCE: invention discloses a prefabricated connecting structure of roofing panels, cornice panels and wall slabs and a method of joining it; it relates to the field of thermal insulation technology. The joint structure comprises first cornice panels, second cornice panels, third cornice panels, fourth cornice panels, a first roofing panel, and second roofing panels. The first cornice panels cover the corners of the steel beams in the shape of an inverted V. Third cornice panels cover the connecting portions of the horizontal steel beams and steel beams in an inverted "V" shape. The second cornice panels are used to cover the steel beams in the shape of an inverted V. The fourth cornice panels are used to cover the horizontal steel beams. The first roof panel is installed on the ridge of the roof and is connected to the first eaves panels. Second roofing panels are installed in spaces surrounded by first roofing panels, third cornice panels, and fourth cornice panels. The cornice panels and roofing panels are staggered. The lower parts of the cornice panels are used to join in a checkerboard pattern with the thermal insulation external wall plates. The invention uses lightweight type thermal insulation panels. The eaves panels, roof panels and thermal insulation external wall panels are staggered. Thus, at the same time a reduction in the weight of the structure and an increase in its thermal insulation effect are achieved. In addition, the invention uses an assembly method to increase the construction speed and shorten the construction period.EFFECT: efficient assembly insulation panel construction is suggested.10 cl, 12 dwg

Description

Technology area

The invention relates to the field of technology for thermal insulation of walls, in particular, to a prefabricated connecting structure made of roofing panels, cornice panels and wall slabs, and to a method of joining it.

Prior art

Existing roofing panels are currently being cast in concrete. This construction technology is complex, causes high construction costs and long construction periods, as well as a high consumption of labor and material resources. In addition, due to the large mass of existing concrete roofing panels, their construction is difficult and a supporting structure is imperative. In addition, existing concrete roofing panels have little thermal insulation effect. Even with the addition of a thermal insulation layer, it is still difficult to meet the thermal insulation requirements.

Due to the continuous improvement of the energy efficiency standard of buildings, as well as due to the increasing development of the construction industry, the ordinary concrete roof panel can no longer meet the standard and development.

Thus, there is a need for a prefabricated joint structure of roofing panels, eaves panels and wall slabs, and a method for joining them, in order to solve the problems of the prior art.

Disclosure of invention

The object of the invention is to provide a prefabricated joint structure of roofing panels, eaves panels and wall slabs, as well as a method of connecting them, in order to solve the problems of the prior art. The invention uses lightweight type thermal insulation panels. The eaves panels, roof panels and thermal insulation external wall slabs are staggered. In this way, a weight reduction and a thermal insulation effect are achieved at the same time. In addition, the invention uses a structure assembly method to increase the construction speed and shorten the construction period.

To achieve the above objectives, the invention provides a prefabricated joint structure of roofing panels, eaves panels and wall slabs. It contains roof panels and eaves panels for roof installation. The roof contains a steel frame. The steel roof frame contains two horizontal steel beams and two steel beams in an inverted "V" shape. The vertical steel beams of the walls are connected with the horizontal steel beams and the inverted V-shaped steel beams underneath by their lower surfaces of the connecting portions.

Cornice panels include first cornice panels, second cornice panels, third cornice panels, and fourth cornice panels. Roof panels include a first roof panel and a second roof panel. The first cornice panels cover the corners of the steel beams in the shape of an inverted V. The third cornice panels cover the connecting portions of the horizontal steel beams and steel beams in an inverted "V" shape. Every second cornice panel is positioned between the adjacent first cornice panel and the third cornice panel and is used to cover an inverted V-shaped steel beam. Every fourth cornice panel is positioned between adjacent third cornice panels and is used to cover the horizontal steel beam. The first roofing panel is installed on the ridge of the roof and is connected to the first eaves panels. Second roofing panels are installed in spaces surrounded by first roofing panels, third cornice panels, and fourth cornice panels. The cornice panels and roof panels are staggered. The lower parts of the cornice panels are used to join in a checkerboard pattern with the heat-insulating external wall slabs.

Preferably, each of the first roofing panel and the second roofing panels comprises a first thermal insulation portion. The first roofing panel has an upside-down V-shaped structure mating with the ridge of the roof. The second roofing panels are of a cuboid design.

Preferably, the eaves panel comprises a first heat-insulating portion and a second heat-insulating portion. The second heat-insulating part is integrated with the bottom surface of the first heat-insulating part below it. The lower part of the second heat-insulating part is connected to the upper part of the heat-insulating outer wall plate by means of a staggered connecting structure.

Preferably, the first thermal insulation portion of the first eaves panel has an inverted V-shaped structure mating with the corner of the inverted V-shaped steel beam. The upper part of the second heat-insulating portion has an inverted V-shaped structure, and an inverted V-shaped groove is formed on the inside of the second heat-insulating portion, which is used to cover the corner of an inverted V-shaped steel beam.

On the inner sides of the second insulating portions of the second cornice panel and the fourth cornice panel, horizontal grooves are provided, used to cover the inverted V-shaped steel beam and the horizontal steel beam, respectively.

On the inner side of the second heat-insulating part of the third cornice panel, a horizontal groove and a vertical groove connected to each other are made. The horizontal groove is used to cover the horizontal steel beam. The vertical slot is used to cover the vertical steel beam.

Preferably, the first thermal insulation portion comprises a thermal insulation panel and a fire / fire retardant panel underneath. A wire mesh is installed on the upper side of the thermal insulation panel.

The second heat-insulating part contains a heat-insulating panel. The fire / fire retardant panel is installed on the inside and the outside of the thermal insulation panel, respectively. The wire mesh is installed respectively on both sides of the fire retardant / fire retardant panels.

The wire mesh is covered with a layer of cement mortar 2.5-3 mm thick.

Preferably, the wire mesh is attached to the fire retardant / fire retardant panel or thermal insulation panel by means of a connecting steel wire. One end of the connecting steel wire is welded to the wire mesh and the other end is inserted into the thermal insulation panel, but does not go through it.

The first heat-insulating part and the second heat-insulating part contain non-metallic connecting elements inside. Each non-metallic connecting element extends through the first heat-insulating portion or the second heat-insulating portion. The two ends of the non-metallic connecting element of the first heat insulating part are connected to the fire / fire retardant panel and wire mesh, respectively. The two ends of the non-metallic connecting element of the second heat-insulating part are rigidly attached, respectively, to wire mesh on both sides.

Preferably, the wire mesh of the adjacent eaves panels or roof panels are connected by a flat wire mesh.

Corner wire mesh is connected to wire mesh at the corners of the first eaves panel and the first roofing panel.

The outer side of the first insulating portion of the cornice panel is covered with a first U-shaped wire mesh. On the outside of the first insulating part of the cornice panel, a checkerboard joint structure is used. A second U-shaped wire mesh is installed in a recessed portion of the staggered connecting structure. The second U-shaped wire mesh is located in the first U-shaped wire mesh.

Preferably, the reinforcing bars, vertically and horizontally arranged and bonded with a bond, are mounted on roofing panels and on eaves panels.

The invention also relates to a method for joining a prefabricated connecting structure made of roofing panels, eaves panels and wall slabs, comprising the following steps, in which:

(1) make cornice panels and roof panels in the factory and transport the finished products to the construction site for assembly;

(2) placing the first cornice panel on the corner of the inverted V-shaped steel beam and closing the corner of the inverted V-shaped steel beam with the inverted V-shaped groove of the first cornice panel;

(3) a second cornice panel and a third cornice panel are sequentially installed, the second cornice panel being installed on a steel beam in the shape of an inverted "V", a third cornice panel is installed on the connecting part of a horizontal steel beam and a steel beam in the shape of an inverted "V", and the second cornice panel is connected to the first cornice panel and the third cornice panel by staggered connecting structures;

(4) installing the fourth cornice panel on a horizontal steel beam, the fourth cornice panel being connected to the third cornice panel by means of a staggered connecting structure;

(5) installing a second roofing panel between the second cornice panel and the fourth cornice panel, the second roofing panel being connected to the fourth cornice panel and the second cornice panel by means of staggered connecting structures;

(6) installing the first roofing panel at the corner of the roof, the first roofing panel being connected to the second roofing panel and the first eaves panel by means of staggered connecting structures;

(7) connecting the bottom of each eaves panel to the top of the insulating outer wall board through a staggered joint structure;

(8) connect the wire mesh of the adjoining eaves panel and roofing panel;

(9) the wire mesh is poured with a layer of cement mortar 2.5 - 3 mm thick.

Preferably, the support beams are installed on the roof and are used to support the roof panels.

The invention provides the following technical effects in comparison with the prior art.

In the prefabricated joint structure of roofing panels, eaves panels and wall slabs according to the invention, lightweight type thermal insulation panels are used. The eaves panels, roof panels and thermal insulation external wall slabs are staggered. Thus, at the same time, a reduction in weight and an increase in thermal insulation effect are achieved. In addition, the invention uses a structure assembly method to increase the construction speed and shorten the construction period.

Brief Description of Drawings

For a clearer disclosure of technical solutions according to embodiments of the invention or the prior art, the drawings are used to describe the embodiments of the invention. It should be noted that the drawings illustrate only some of the possible embodiments of the invention, and a person skilled in the art can easily create other drawings for other embodiments based on the available drawings.

FIG. 1 shows an exploded view of an assembled joint structure of roofing panels, cornice panels and wall slabs according to the invention;

in fig. 2 is a schematic view of each wire mesh according to the invention;

in fig. 3 is a schematic view of a first eaves panel according to the invention;

in fig. 4 is a schematic view of a second eaves panel according to the invention;

in fig. 5 is a schematic view of a third cornice panel according to the invention;

in fig. 6 is a schematic view of a fourth cornice panel according to the invention;

in fig. 7 is a schematic view of a first roofing panel according to the invention;

in fig. 8 is a schematic view of a second roofing panel according to the invention;

in fig. 9 is a schematic view of a flat wire mesh according to the invention;

in fig. 10 is a schematic view of a corner wire mesh according to the invention;

in fig. 11 is a schematic view of a U-shaped wire mesh according to the invention;

in fig. 12 is a schematic view of a reinforcing bar according to the invention.

1 - the first eaves panel; 2 - the second eaves panel; 3 - third eaves panel; 4 - fourth eaves panel; 5 - the first roofing panel; 6 - the second roofing panel; 7 - flat wire mesh; 8 - corner wire mesh; 9 - the second U-shaped wire mesh; 10 - the first U-shaped wire mesh; 11 - reinforcing bar; 12 - the first heat-insulating part; 13 - the second heat-insulating part; 14 - wire mesh; 15 - non-metallic connecting element; 16 - heat-insulating panel; and 17 is a fire retardant / fire retardant panel.

Embodiments of the invention

The following is a detailed description of technical solutions according to possible embodiments of the invention with reference to the drawings. Of course, the described options for implementation include not all possible options, but only a part of them. All other embodiments obtained by a person skilled in the art without ingenious efforts based on the described embodiments are included in the protection scope of the present invention.

In order to make the above object, features and advantages of the invention more obvious and understandable, the following is a detailed description of some specific embodiments with reference to the drawings.

Embodiment 1

As shown in FIG. 1-12, this embodiment provides a prefabricated joint structure of roof panels, cornice panels and wall slabs comprising roof panels and cornice panels to be installed on the roof. The roof contains a steel frame. The steel roof frame contains two horizontal steel beams and two steel beams in an inverted "V" shape. The vertical steel beams of the walls are connected with the horizontal steel beams and the inverted V-shaped steel beams underneath by their lower surfaces of the connecting portions.

Cornice panels include first cornice panels 1, second cornice panels 2, third cornice panels 3, and fourth cornice panels 4. Roof panels include a first roofing panel 5 and a second roofing panel 6. The first cornice panels 1 cover the corners of steel beams in a shape inverted letter "V". The third cornice panels 3 cover the connecting portions of the horizontal steel beams and steel beams in the shape of an inverted "V". Every second cornice panel 2 is positioned between the adjacent first cornice panel 1 and the third cornice panel 3 and is used to cover an inverted V-shaped steel beam. Every fourth cornice panel 4 is positioned between adjacent third cornice panels 3 and is used to cover a horizontal steel beam. The first roofing panel 5 is installed on the roof ridge and connected to the first eaves panels 1. The second roofing panels 6 are installed in the spaces between the first roofing panels 5, the third eaves panels 3 and the fourth eaves panels 4. The eaves panels and roofing panels are staggered. The lower parts of the cornice panels are used to join in a checkerboard pattern with the heat-insulating external wall slabs.

In the present embodiment, each eaves panel, each roof panel, and each insulating outer wall board are staggered to form a seamless one-piece body to reduce thermal bridge and provide energy savings and thermal insulation.

In the present embodiment, each of the first roofing panel 5 and the second roofing panels 6 comprises a first thermal insulation portion 12. The first roofing panel 5 has an inverted "V" shape to match the shape of the ridge of the roof. The second roofing panels 6 have a cuboid structure.

In the present embodiment, the eaves panel comprises a first heat-insulating portion 12 and a second heat-insulating portion 13. The second heat-insulating portion 13 is integrated with the bottom surface of the first heat-insulating portion 12 below it. The lower part of the second heat-insulating part 13 is connected to the upper part of the heat-insulating outer wall plate by means of a staggered connecting structure.

In this embodiment, the first insulating portion of the first eaves panel 1 has an inverted V-shaped structure mating with the angle of the inverted V-shaped steel beam and the first roofing panel 5. The upper portion of the second insulating portion has a corresponding inverted V-shaped structure. the letter "V", and on the inner side of the second heat-insulating part there is an inverted V-shaped groove that is used to cover the corner of the steel beam in the form of an inverted V. On the inner sides of the second insulating portions of the second cornice panel 2 and the fourth cornice panel 4, horizontal grooves are provided, used to cover the inverted V-shaped steel beam and the horizontal steel beam, respectively. On the inner side of the second heat-insulating part of the third cornice panel 3, a horizontal groove and a vertical groove connected to each other are made. The horizontal groove is used to cover the horizontal steel beam. The vertical slot is used to cover the vertical steel beam. Steel structural beams are completely enclosed by thermal insulation panels by mating different grooves to provide a thermal insulation effect.

In the present embodiment, the first thermal insulation portion 12 comprises a thermal insulation panel 16 and a fire / fire retardant panel 17 below it. On the upper side of the thermal insulation panel 16, a wire mesh 14 is installed. The second thermal insulation portion 13 comprises a thermal insulation panel 16. The fire / fire retardant panel 17 is mounted, respectively, on the inner side and on the outside of the thermal insulation panel 16. The wire mesh 14 is mounted, respectively, on both sides of the fire retardant / fire retardant panels 17.

In addition, filling strips are disposed between the wire mesh 14 and the fire / fire retardant panel 17 or thermal insulation panel 16. Thus, they provide a suitable space for the subsequent injection of concrete or grout. As the thermal insulation panel 16, a polystyrene panel, a polyurethane panel, a graphite polystyrene panel, an extruded sheet, etc. are used. As the fire retardant / fire retardant panel 17, a perlite panel is used, preferably an expanded perlite panel. The thickness of the thermal insulation panel 16 and the fire / fire retardant panel 17 is selected depending on the requirements; it can be, for example, from 10 to 30 cm or, for example, from 2 to 5 cm.

In the present embodiment, the wire mesh 14 is attached to the fire / fire retardant panel 17 or the thermal insulation panel 16 by means of a connecting steel wire. One end of the connecting steel wire is welded to the wire mesh 14 and the other end is inserted into the thermal insulation panel 16 without going through it.

In addition, the first heat-insulating portion 12 and the second heat-insulating portion 13 further comprise non-metallic connecting members 15 internally 15. Each non-metallic connecting member 15 extends through the first heat-insulating portion 12 or the second heat-insulating portion 13. The two ends of the non-metallic connecting member 15 of the first heat insulating portion 12 are connected, respectively , with a fire / fire retardant panel 17 and wire mesh 14. The two ends of the non-metallic connecting element 15 of the second thermal insulation portion 13 are rigidly attached, respectively, to the wire mesh 14 on both sides.

In particular, at the two ends of the non-metallic connecting elements 15 are provided connecting caps or connecting reinforcement rods used to connect to the fire retardant / fire retardant panel 17 and the wire reinforcement mesh 14.

In the present embodiment, the steel wire of the wire reinforcement mesh 14 and the connecting steel wires is a galvanized steel wire with a diameter of 2-3 mm. The design of the non-metallic connecting members 15 further enhances the overall strength of the composite insulating wallboard.

In this embodiment, the wire mesh 14 of the adjoining cornice panels or roofing panels are connected by a flat wire mesh 7. Corner wire mesh 8 is connected to the wire mesh 14 at the corners of the first cornice panel 1 and the first roofing panel 5. The outer side of the first insulating part of the cornice panel is covered the first U-shaped wire mesh 10. On the outside of the first thermal insulation portion of the cornice panel, a staggered joint structure is used. A second U-shaped wire mesh 9 is installed in a recessed portion of the staggered connecting structure. The second U-shaped wire mesh 9 is located in the first U-shaped wire mesh 10.

The aforementioned flat wire mesh, corner wire mesh and U-shaped wire mesh are made using galvanized steel wire coated with a layer of cement mortar.

In the present embodiment, the staggered joint structure comprises a protruding portion or a recessed portion. The thickness of the protruding part or the recessed part is from 2 to 10 cm, preferably 3 cm. The connection is carried out by means of a checkerboard connecting structure, which ensures the elimination of through seams, reduces heat losses and improves the thermal insulation effect. The specific position of the protruding part or the recessed part can be selected depending on the requirements for the elimination of through seams.

In the present embodiment, the reinforcing bars 11, which are vertically and horizontally arranged and bonded with a tie, are mounted on roofing panels and on eaves panels.

The specified embodiment also discloses a method of joining a prefabricated joint structure of roofing panels, eaves panels and wall slabs, including the following steps, in which:

eaves and roof panels are manufactured at the plant and the finished products are transported to the construction site for assembly;

placing the first cornice panel on the corner of the inverted V-shaped steel beam and closing the corner of the inverted V-shaped steel beam with the inverted V-shaped groove of the first cornice panel;

the second cornice panel and the third cornice panel are sequentially installed, the second cornice panel being installed on the steel beam in the shape of an inverted "V", the third cornice panel is installed on the connecting part of the horizontal steel beam and the steel beam in the form of an inverted "V", and the second cornice panel the panel is connected to the first cornice panel and the third cornice panel by means of staggered connecting structures;

installing a fourth cornice panel on a horizontal steel beam, the fourth cornice panel being connected to the third cornice panel by means of a staggered connecting structure;

installing a second roofing panel between the second cornice panel and the fourth cornice panel, the second roofing panel being connected to the fourth cornice panel and the second cornice panel by means of staggered connecting structures;

installing a first roofing panel on a roof corner, the first roofing panel being connected to the second roofing panel and the first eaves panel by means of staggered connecting structures;

connecting the lower part of each eaves panel to the upper part of the heat-insulating outer wall slab by means of a checkerboard connecting structure;

connect the wire mesh of the adjoining cornice panel and the roofing panel;

wire reinforcing mesh is poured with a layer of cement mortar with a thickness of 2.5 - 3 mm.

The installation sequence of the eaves and roof panels can be varied as required, provided that the connection and assembly requirements for the eaves and roof panels are met.

In the present embodiment, the support beams are mounted on the roof and are used to support the roof panels.

In the above description, several examples have been used to explain the principles and embodiments of the invention. The above description of possible embodiments is only intended to illustrate the method and basic principles according to the invention. A person skilled in the art will be able to make various modifications and make various changes to the proposed options for implementation and scope of application in accordance with the principles of the invention. In conclusion, it should be noted that the above description of the invention should in no way be construed as limiting its scope.

Claims (27)

1. A prefabricated connecting structure of roofing panels, eaves panels and wall slabs containing roofing panels and eaves panels intended for installation on a roof containing a steel frame; moreover, the steel roof frame contains two horizontal steel beams and two steel beams in the shape of an inverted "V"; vertical steel wall girders are connected to the lower surfaces of the connecting portions of the horizontal steel girders and the inverted V-shaped steel girders beneath them; cornice panels include first cornice panels, second cornice panels, third cornice panels, and fourth cornice panels; roofing panels include a first roofing panel and second roofing panels; the first cornice panels cover the corners of the steel beams in the shape of an inverted "V"; the third cornice panels cover the connecting portions of the horizontal steel beams and the steel beams in the shape of an inverted "V"; every second cornice panel is located between the adjacent first cornice panel and the third cornice panel and is used to cover an inverted V-shaped steel beam; every fourth cornice panel is located between adjacent third cornice panels and is used to cover the horizontal steel beam; the first roofing panel is installed on the roof ridge and connected to the first eaves panels; second roofing panels are installed in spaces surrounded by first roofing panels, third cornice panels and fourth cornice panels; eaves panels and roof panels are staggered; the lower parts of the cornice panels are used to form a staggered connection with the heat-insulating outer wall slabs. 2. The precast joint structure of claim 1, wherein each of the first roofing panel and the second roofing panels comprises a first thermal insulation portion; the first roofing panel has an inverted V-shaped structure mating with the ridge shape of the roof; the second roofing panels have a cuboid structure. 3. The prefabricated connecting structure according to claim. 2, in which the eaves panel contains a first heat-insulating part and a second heat-insulating part; the second heat-insulating part is integrated with the lower surface of the first heat-insulating part underneath; the lower part of the second heat-insulating part is connected to the upper part of the heat-insulating outer wall plate by means of a staggered connecting structure. 4. The precast joint structure of claim 3, wherein the first insulating portion of the first eaves panel has an inverted V-shaped structure mating with an inverted V-shaped steel beam angle; the upper part of the second heat-insulating part has a corresponding inverted V-shaped structure, and an inverted V-shaped groove is formed on the inner side of the second heat-insulating part, which is used to cover the corner of the steel beam in the shape of an inverted V; on the inner side of the second insulating portions of the second cornice panel and the fourth cornice panel are horizontal grooves used to cover the inverted V-shaped steel beam and the horizontal steel beam, respectively; on the inner side of the second heat-insulating part of the third cornice panel, a horizontal groove and a vertical groove connected to each other are made; the horizontal groove is used to cover the horizontal steel beam; the vertical groove is used to cover the vertical steel beam. 5. The prefabricated joint structure of claim. 3, in which the first thermal insulation part includes a thermal insulation panel and a fire / fire retardant panel below it; a wire mesh is installed on the upper side of the thermal insulation panel; the second heat-insulating part contains a heat-insulating panel; the fire-retardant / fire-retardant panel is installed, respectively, on the inner side and the outer side of the thermal insulation panel; wire mesh is installed, respectively, on both sides of the fire retardant / fire retardant panels; the wire mesh is covered with a layer of cement mortar 2.5-3 mm thick. 6. The prefabricated joint structure according to claim 5, wherein the wire mesh is attached to the fire / fire retardant panel or thermal insulation panel by means of a connecting steel wire; one end of the connecting steel wire is welded to the wire mesh, and the other end is inserted into the thermal insulation panel, but does not pass through it; the first heat-insulating part and the second heat-insulating part further comprise non-metallic connecting elements inside; each non-metallic connecting element extends through the first heat-insulating portion or the second heat-insulating portion; the two ends of the non-metallic connecting element of the first heat-insulating part are connected, respectively, to the fire-retardant / fire-retardant panel and wire mesh; the two ends of the non-metallic connecting element of the second heat-insulating part are rigidly attached, respectively, to the wire mesh on both sides. 7. The prefabricated connecting structure according to claim 6, in which the wire mesh of the adjacent cornice panels or roofing panels are connected by a flat wire mesh; corner wire meshes are connected to wire mesh at the corners of the first eaves panel and the first roofing panel; the outside of the first thermal insulation portion of the cornice panel is covered with a first U-shaped wire mesh; a checkerboard joint structure is used on the outside of the first heat-insulating portion of the cornice panel; a second U-shaped wire mesh is installed in a recessed portion of the staggered connecting structure; the second U-shaped wire mesh is located in the first U-shaped wire mesh. 8. The prefabricated connecting structure according to claim 7, in which the reinforcing bars, located vertically and horizontally and held together by tying, are installed on the roofing panels and on the eaves panels. 9. A method of connecting a prefabricated connecting structure made of roofing panels, cornice panels and wall slabs, which includes the following stages, at which: (1) make cornice panels and roof panels in the factory and transport the finished products to the construction site for assembly; (2) placing the first cornice panel on the corner of the inverted V-shaped steel beam and closing the corner of the inverted V-shaped steel beam with the inverted V-shaped groove of the first cornice panel; (3) a second cornice panel and a third cornice panel are sequentially installed, the second cornice panel being installed on a steel beam in the shape of an inverted "V" and the second cornice panel is connected to the first cornice panel and the third cornice panel by staggered connecting structures; (4) installing the fourth cornice panel on a horizontal steel beam, the fourth cornice panel being connected to the third cornice panel by means of a staggered connecting structure; (5) installing a second roofing panel between the second cornice panel and the fourth cornice panel, the second roofing panel being connected to the fourth cornice panel and the second cornice panel by staggered connecting structures; (6) installing the first roofing panel at the corner of the roof, the first roofing panel being connected to the second roofing panel and the first eaves panel by means of staggered connecting structures; (7) connecting the bottom of each eaves panel to the top of the insulating outer wall board through a staggered joint structure; (8) connect the wire mesh of the abutting cornice panel and the roofing panel; (9) the wire mesh is poured with a layer of cement mortar 2.5-3 mm thick. 10. The method of claim 9, wherein the support beams are mounted on the roof and used to support the roofing panels.

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