阅读说明：本技术 金属瓦与金属檐椽的组合屋面的施工方法 (Construction method of combined roof of metal tiles and metal eaves rafters ) 是由 赵海 赵旭 杨锋 孙晓阳 朱建红 路杨帆 陈新喜 李赟 张金鹏 于 2019-10-30 设计创作，主要内容包括：本发明公开了一种金属瓦与金属檐椽的组合屋面的施工方法,包括步骤1：结构主体(10)内安装预埋件(9)；步骤2：支撑骨架(7)通过预埋件装在结构主体上；步骤3：铺设压型钢板(6)；步骤4：铺设防水板(5)；步骤5：安装檐椽金属板(8)；步骤6：铺设檩条(4)；步骤7：铺设椽条(3)；步骤8：铺设金属瓦(2)；步骤9：在屋脊处安装金属压梁(1),将防水板上端延伸到金属压梁内并封闭；步骤10：在金属瓦上安装滴水(24)和勾头(23)。本发明能确保金属瓦与金属檐椽的组合屋面的连接气密性和水密性,从而确保屋面结构不渗漏、不变形,使其具有较好的抗风防水性能。(The invention discloses a construction method of a combined roof of a metal tile and a metal eaves rafter, which comprises the following steps of 1: an embedded part (9) is arranged in the structure main body (10); step 2: the supporting framework (7) is arranged on the structure main body through an embedded part; and step 3: laying a profiled steel sheet (6); and 4, step 4: laying a waterproof board (5); and 5: mounting a metal plate (8) of the eave rafter; step 6: laying purlins (4); and 7: laying rafters (3); and 8: paving metal tiles (2); and step 9: a metal pressing beam (1) is arranged at a ridge, and the upper end of the waterproof plate extends into the metal pressing beam and is sealed; step 10: a water drop (24) and a hook head (23) are arranged on the metal tile. The invention can ensure the connection air tightness and water tightness of the combined roof of the metal tile and the metal eave rafter, thereby ensuring that the roof structure does not leak or deform and has better wind-resistant and waterproof performance.)

1. A construction method of a combined roof of a metal tile and a metal eave rafter is characterized by comprising the following steps: the construction method is applied to the construction of a combined roof of the metal tiles and the metal eaves rafters, and the combined roof of the metal tiles and the metal eaves rafters comprises metal compression beams (1), metal tiles (2), rafters (3), purlins (4), waterproof plates (5), profiled steel plates (6), supporting frameworks (7), eaves rafter metal plates (8) and embedded parts (9);

the construction method comprises the following steps:

step 1: constructing a structure main body (10) and installing an embedded part (9) in the structure main body (10);

step 2: mounting and fixing a support framework (7) on a structure main body (10) through an embedded part (9);

and step 3: fixedly laying the profiled steel sheet (6) on an upper inclined framework (72) of the supporting framework (7);

and 4, step 4: paving a waterproof plate (5) on the profiled steel sheet (6) and the lower inclined framework (73) of the supporting framework (7);

and 5: an eave rafter metal plate (8) is arranged on a lower oblique framework (73) of the supporting framework (7), and the eave rafter metal plate (8) is paved on the outer side of the waterproof plate (5);

step 6: a purline (4) is horizontally laid on an upper inclined framework (72) of the supporting framework (7), and the purline (4) is fixed on an adapter piece (74) penetrating through the profiled steel sheet (6) and the waterproof sheet (5);

and 7: rafters (3) are laid on the purlins (4);

and 8: laying metal tiles (2) on the rafters (3);

and step 9: installing a metal pressing beam (1) at a ridge, extending the upper end of the waterproof plate (5) into the metal pressing beam (1), and closing the pressing beam to form a thin seam;

step 10: a drip (24) is fixedly arranged at the cornice end of a plate tile (21) of the metal tile (2), and a hook head (23) is fixedly arranged at the cornice end of a cylindrical tile (22) of the metal tile (2).

2. The method for constructing a combined roof of metal tiles and metal eaves rafters as claimed in claim 1, wherein the method comprises the following steps: the installation method of the embedded part (9) specifically comprises the following steps:

step 1.1: analyzing and verifying the stress and deformation conditions of the structure of the supporting framework (7) by using 3D3S finite element analysis software;

step 1.2: a datum line is determined on the structure main body (10) by using a Tianbao robot according to the axis and the elevation line on the structure main body (10), and a positioning line, namely the installation position of the embedded part (9), is determined through the datum line;

step 1.3: when the structure main body (10) is constructed, the embedded parts (9) are accurately embedded at the installation positions according to the positioning lines.

3. The method for constructing a combined roof of metal tiles and metal eaves rafters as claimed in claim 1, wherein the method comprises the following steps: the mounting method of the support framework (7) specifically comprises the following steps:

step 2.1: the supporting framework (7) is formed by splicing a longitudinal framework (71), an upper inclined framework (72) and a lower inclined framework (73), and the supporting framework (7) is subjected to rust prevention treatment;

step 2.2: the supporting framework (7) is accurately fixed on the embedded part (9) through the longitudinal framework (71) according to the positioning line; if the embedded part (9) is not arranged on the structure main body (10), punching holes on the structure main body (10) and installing expansion bolts, and fixing the longitudinal frame (71) on the structure main body (10) through the expansion bolts;

step 2.3: a plurality of adapters (74) are arranged on the support framework (7) at intervals.

4. The method for constructing a combined roof of metal tiles and metal eaves rafters as claimed in claim 1, wherein the method comprises the following steps: the profiled steel sheets (6) are laid from cornices to ridges, and two adjacent profiled steel sheets (6) are mutually overlapped.

5. The method for constructing a combined roof of metal tiles and metal eaves rafters as claimed in claim 1, wherein the method comprises the following steps: the waterproof board (5) comprises a self-adhesive waterproof coiled material (51) and a sea waterproof board (52), and the installation method of the waterproof board (5) specifically comprises the following steps:

step 4.1: fixedly laying the sea defense plate (52) on the profiled steel plate (6) and the lower inclined framework (73) of the supporting framework (7);

step 4.2: adhering and paving a self-adhesive waterproof coiled material (51) on the surface of a sea defense plate (52);

step 4.3: the self-adhesive waterproof coiled materials (51) on two adjacent marine protection plates (52) are mutually overlapped.

6. The method for constructing a combined roof of metal tiles and metal eaves rafters as claimed in claim 1, wherein the method comprises the following steps: the eaves rafter metal plates (8) are laid in sequence from bottom to top and from the middle to two sides, and a gap is reserved between every two adjacent eaves rafter metal plates (8); eaves rafter metal sheet (8) include down mouthful eaves rafter board (81), middle level eaves rafter board (82) and top layer eaves rafter board (83), and the method of laying of eaves rafter metal sheet (8) specifically is:

step 5.1: a lower opening eave rafter plate (81) is installed on the lower portion of a lower oblique framework (73) of a supporting framework (7) through an angle code self-tapping screw, and two ends of the lower opening eave rafter plate (81) are fixed through cover type pressing codes;

step 5.2: the middle part of a lower oblique framework (73) of the supporting framework (7) is provided with a middle layer eave rafter plate (82) in a sealing way through an adhesive tape, and two ends of the middle layer eave rafter plate (82) are fixed through cover-type pressing codes;

step 5.3: the upper part of a lower oblique framework (73) of the supporting framework (7) is provided with a top layer eave rafter board (83) in a sealing mode through an adhesive tape, and two ends of the top layer eave rafter board (83) are fixed through cover type pressing codes and angle code self-tapping nails.

7. The method for constructing a combined roof of metal tiles and metal eaves rafters as claimed in claim 1, wherein the method comprises the following steps: the mounting method of the purline (4) is as follows: the purline (4) is fixedly arranged on the adapter (74) through an L-shaped connecting plate (41) by bolts.

8. The method for constructing a combined roof of metal tiles and metal eaves rafters as claimed in claim 1, wherein the method comprises the following steps: the rafters (3) are laid from the cornice to the ridge.

9. The method for constructing a combined roof of metal tiles and metal eaves rafters as claimed in claim 1, wherein the method comprises the following steps: the laying sequence of the metal tile (2) is as follows: the metal tile (2) is arranged from the middle to two sides and comprises a plate tile (21) and a cylindrical tile (22), and the plate tile (21) and the cylindrical tile (22) are paved at intervals; when the plate tiles (21) are laid, the front plate tile (21) and the rear plate tile (21) are in butt joint and are fully welded, the plate tiles are polished and leveled, the plate tiles are installed after being lengthened, and the folding edges of the plate tiles (21) are fixed with the rafters (3) through self-tapping self-drilling screws.

10. The method for constructing a combined roof of metal tiles and metal eaves rafters as claimed in claim 1, wherein the method comprises the following steps: after the installation of the combined roof of the metal tile and the metal eave rafter is completed, the roof quality inspection is carried out, and the inspection requirements are as follows: the tile ridge spacing is consistent, and the tile ridge straightness, the tile ridge perpendicularity with the eave sealing plate, the roof flatness deviation, the ridge straightness, the prop ridge straightness deviation, the tile joint deviation with the pantile and the eave dripping straightness of the hook head all meet the design requirements.

Technical Field

The invention relates to a construction method of a roof structure, in particular to a construction method of a combined roof of metal tiles and metal eaves rafters.

Background

At present, the archaized buildings at home and abroad are mostly built in a combined roof form. The common roof form of the combination of the metal tiles and the metal eaves rafters is formed by combining an independent upper metal tile roof system and an independent lower metal eaves rafter system, and the combined roof has the characteristic of good appearance effect. However, the following is likely to occur during the application process:

(1) to the great roofing of area, the roofing system of prior art's metal tile and metal eaves rafter combination can be because self weight is great, easily produces the potential safety hazard of roofing support chassis unstability.

(2) There is the gap between upper portion metal tile roofing system waterproof board and the lower part metal eaves rafter system waterproof board of prior art, in the great coastal typhoon area of wind-load, easily causes the waterproof board to warp or waterproof board and adaptor drop under the negative wind pressure effect, very easily produces the branch and lifts and leak the phenomenon. Once the phenomena of lifting and water leakage occur, the maintenance is difficult and the cost is high, and the potential safety hazard cannot be effectively eliminated after the maintenance.

In the existing construction system, no complete set of perfect standardized process is available for reference in the construction of the combined roof of the metal tile and the metal aluminum rafters. Particularly, in coastal typhoon areas with large wind load, the phenomena of roof lifting and water leakage are easily caused due to poor construction quality, the metal combined roof is different from a concrete roof, the leakage point cannot be found out, and the safety and the living experience of the building are greatly reduced.

Disclosure of Invention

The invention aims to provide a construction method of a combined roof of a metal tile and a metal eave rafter, which can ensure the connection air tightness and water tightness of the combined roof of the metal tile and the metal eave rafter, thereby ensuring that the roof structure does not leak or deform and has better wind and water resistance.

The invention is realized by the following steps:

a construction method of a metal tile and metal eaves rafter combined roof is applied to construction of the metal tile and metal eaves rafter combined roof, and the metal tile and metal eaves rafter combined roof comprises a metal compression beam, a metal tile, rafters, purlins, waterproof plates, profiled steel plates, a supporting framework, eaves rafter metal plates and embedded parts;

the construction method comprises the following steps:

step 1: constructing a structure main body and installing an embedded part in the structure main body;

step 2: mounting and fixing a support framework on the structure main body through an embedded part;

and step 3: fixedly laying a profiled steel sheet on an upper inclined framework of a supporting framework;

and 4, step 4: paving waterproof plates on the profiled steel plates and the lower inclined framework of the supporting framework;

and 5: mounting a eaves rafter metal plate on a lower oblique framework of the supporting framework, wherein the eaves rafter metal plate is laid on the outer side of the waterproof plate;

step 6: a purline is horizontally laid on an upper inclined framework of the supporting framework and fixed on an adapter penetrating through the profiled steel sheet and the waterproof plate;

and 7: paving rafters on the purlins;

and 8: laying metal tiles on the rafters;

and step 9: installing a metal pressing beam at the ridge, extending the upper end of the waterproof plate into the metal pressing beam, and sealing the pressing beam to form a thin seam;

step 10: the eaves end of the tile of the metal tile is fixedly provided with a drip, and the eaves end of the tile of the metal tile is fixedly provided with a hook head.

The installation method of the embedded part specifically comprises the following steps:

step 1.1: analyzing and verifying the stress and deformation conditions of the structure of the supporting framework by using 3D3S finite element analysis software;

step 1.2: a datum line is determined on the structure main body by using the Tianbao robot according to the axis and the elevation line on the structure main body, and a positioning line, namely the installation position of the embedded part, is determined through the datum line;

step 1.3: when the structure main body is constructed, the embedded parts are accurately embedded at the installation positions according to the positioning lines.

The mounting method of the support framework specifically comprises the following steps:

step 2.1: splicing a longitudinal framework, an upper inclined framework and a lower inclined framework to form a supporting framework, and performing rust prevention treatment on the supporting framework;

step 2.2: accurately fixing the support framework on the embedded part through the longitudinal framework according to the positioning line; if the structure main body is not provided with the embedded part, punching a hole in the structure main body and installing an expansion bolt, and fixing the longitudinal framework on the structure main body through the expansion bolt;

step 2.3: a plurality of adapters are arranged on the supporting framework at intervals.

The profiled steel sheets are laid from the cornice to the ridge in a laying mode, and two adjacent profiled steel sheets are mutually overlapped.

The waterproof board comprises a self-adhesive waterproof coiled material and a sea waterproof board, and the installation method of the waterproof board specifically comprises the following steps:

step 4.1: fixedly laying the sea defense plate on the profiled steel plate and the lower inclined framework of the supporting framework;

step 4.2: laminating and paving the self-adhesive waterproof coiled material on the surface of the sea defense plate;

step 4.3: the self-adhesive waterproof coiled materials on two adjacent marine protection plates are mutually lapped.

The eaves rafter metal plates are laid from bottom to top and from the middle to two sides, and a gap is reserved between every two adjacent eaves rafter metal plates; eaves rafter metal sheet includes end opening eaves rafter board, middle level eaves rafter board and top layer eaves rafter board, and the method of laying of eaves rafter metal sheet specifically is:

step 5.1: mounting a lower opening eave rafter plate on the lower part of a lower inclined framework of the supporting framework through an angle code self-tapping screw, and fixing two ends of the lower opening eave rafter plate through a cover-buckling type pressing code;

step 5.2: the middle part of the lower inclined framework of the supporting framework is provided with a middle layer eave rafter plate in a sealing way through an adhesive tape, and two ends of the middle layer eave rafter plate are fixed through cover-type pressing codes;

step 5.3: the upper portion of the lower oblique framework of the supporting framework is provided with a top layer eave rafter plate in a sealing mode through an adhesive tape, and two ends of the top layer eave rafter plate are fixed through cover type pressing codes and angle code self-tapping nails.

The mounting method of the purline specifically comprises the following steps: the purline is fixedly installed on the adapter through the L-shaped connecting plate and the bolts.

The rafters are laid from the cornice to the ridge.

The laying sequence of the metal tiles is as follows: the metal tiles are arranged from the middle to two sides and comprise plate tiles and cylindrical tiles which are paved at intervals; when the plate tiles are laid, the front plate tiles and the rear plate tiles are in butt joint and are in full welding, are polished to be flat, are installed after being lengthened, and the folding edges of the plate tiles are fixed with rafters through self-tapping self-drilling screws.

After the installation of the combined roof of the metal tile and the metal eave rafter is completed, the roof quality inspection is carried out, and the inspection requirements are as follows: the tile ridge spacing is consistent, and the tile ridge straightness, the tile ridge perpendicularity with the eave sealing plate, the roof flatness deviation, the ridge straightness, the prop ridge straightness deviation, the tile joint deviation with the pantile and the eave dripping straightness of the hook head all meet the design requirements.

The invention can ensure the connection air tightness and water tightness of the combined roof of the metal tile and the metal eave rafter, solves the problem of unreliable connection of the metal tile and the metal aluminum rafter combined roof, solves the problems of roof lifting and water leakage caused by poor construction quality in coastal typhoon areas with larger wind load, solves the problem of hidden waterproof trouble of the combined roof and ensures the engineering quality.

Drawings

Fig. 1 is a schematic construction diagram of step 1 in the construction method of the combined roof of the metal tile and the metal eaves rafter;

fig. 2 is a schematic construction diagram of step 2 in the construction method of the combined roof of the metal tile and the metal eaves rafter;

fig. 3 is a schematic construction diagram of step 3 in the construction method of the combined roof of the metal tile and the metal eaves rafter;

FIG. 4 is a schematic construction diagram of step 4 in the construction method of the combined roof of the metal tile and the metal eaves rafter;

FIG. 5 is a schematic construction diagram of step 5 in the construction method of the combined roof of the metal tile and the metal eaves rafter;

fig. 6 is a schematic construction diagram of step 6 and step 7 in the construction method of the combined roof of the metal tile and the metal eaves rafter;

fig. 7 is a schematic construction diagram of step 8 in the construction method of the combined roof of the metal tile and the metal eaves rafter;

FIG. 8 is a cross-sectional view of FIG. 7;

fig. 9 is a schematic construction diagram of step 9 in the construction method of the combined roof of the metal tile and the metal eaves rafter;

fig. 10 is a schematic construction diagram of step 10 in the construction method of the combined roof of the metal tile and the metal eaves rafter;

FIG. 11 is a cross-sectional view of a roof structure constructed by the method of the present invention for constructing a composite roof of metal tiles and metal eaves;

FIG. 12 is an enlarged partial view of FIG. 11;

fig. 13 is an exploded view of a roof structure constructed by the method of the present invention for constructing a combined roof of metal tiles and metal eaves rafters.

In the figure, 1 metal compression beam, 2 metal tile, 21 plate tile, 22 pantile, 23 eave, 24 water drops, 3 rafters, 4 purlins, 41L type connecting plate, 5 waterproof boards, 51 self-adhesive waterproof coiled materials, 52 marine protection boards, 6 profiled steel sheets, 7 support frameworks, 71 longitudinal frameworks, 72 upper oblique frameworks, 73 lower oblique frameworks, 8 rafter metal boards, 81 lower mouth eave rafter boards, 82 middle layer eave rafters, 83 top layer eave rafters, 9 embedded parts and 10 structural bodies.

Detailed Description

The invention is further described with reference to the following figures and specific examples.

Referring to fig. 11 to 13, a construction method of a metal tile and metal rafter combined roof is applied to the construction of the metal tile and metal rafter combined roof, and the metal tile and metal rafter combined roof includes a metal compression beam 1, a metal tile 2, rafters 3, purlins 4, a waterproof board 5, a profiled steel sheet 6, a supporting framework 7, a rafter metal sheet 8 and embedded parts 9.

The construction method of the combined roof of the metal tile and the metal eave rafter comprises the following steps:

referring to fig. 1, step 1: the structural body 10 is constructed and the embedment 9 is installed in the structural body 10.

The installation method of the embedded part 9 specifically comprises the following steps:

step 1.1: and (3D 3S) finite element analysis software is used for analyzing and verifying the stress and deformation conditions of the structure of the supporting framework 7, so as to ensure that the design meets the requirements.

Step 1.2: a datum line is determined on the structure main body 10 by the Tianbao robot according to the axis and the elevation line on the structure main body 10, and a positioning line, namely the installation position of the embedded part 9 is determined through the datum line.

Step 1.3: when the structure main body 10 is constructed, the embedded parts 9 are accurately embedded at the installation positions according to the positioning lines and are used for fixing the supporting framework 7.

Please refer to fig. 2, step 2: the supporting framework 7 is fixedly installed on the structure main body 10 through embedded parts 9.

The mounting method of the support framework 7 specifically comprises the following steps:

step 2.1: the supporting framework 7 is formed by splicing the longitudinal framework 71, the upper inclined framework 72 and the lower inclined framework 73, and the supporting framework 7 is subjected to rust prevention treatment, so that the rust prevention performance is improved, and the service life is prolonged.

Step 2.2: the supporting framework 7 is accurately fixed on the embedded part 9 through the longitudinal framework 71 according to the positioning line, preferably, the fixing mode of the longitudinal framework 71 and the embedded part 9 can adopt welding or bolt connection and the like, and can be adjusted according to the actual construction condition.

If the embedded part 9 is not arranged on the structure main body 10, holes can be punched on the structure main body 10 and expansion bolts can be arranged on the structure main body 10, the longitudinal frame 71 is fixed on the structure main body 10 through the expansion bolts, and the expansion bolts can be matched with the embedded part 9, so that the installation reliability of the roof structure is improved.

Step 2.3: a plurality of adapters 74 are arranged on the support framework 7 at intervals, and the installation method of the adapters 74 specifically comprises the following steps: and positioning and paying off are carried out by using the Tianbao robot, and the adaptor 74 is welded and fixed at the mounting position of the support framework 7.

In the installation process of the supporting framework 7, a specially-assigned person is required to check the elevation and the center line position at any time, the vertical rod of the longitudinal framework 71 must be measured by a measuring instrument and a line weight, the position of the vertical rod is corrected, and the vertical and flat vertical rod of the longitudinal framework 71 is ensured.

Preferably, the supporting framework 7 can be made of rectangular pipes of 80 × 5mm main keels, 50 × 4mm secondary keels and 40 × 4mm rectangular pipes through welding, the rectangular pipes can be made of Q235 steel, and the supporting framework is high in strength and has good wind resistance.

Please refer to fig. 3, step 3: the profiled steel sheet 6 is fixedly laid on the upper inclined framework 72 of the supporting framework 7 through waterproof self-tapping screws.

Profiled sheet 6 lay the mode for following the eave to the ridge, two adjacent profiled sheet 6 mutual overlap joints, preferably, profiled sheet 6's overlap joint overlap length be 100mm, profiled sheet 6 can adopt thickness to be 1 mm's YX3B profiled sheet, be convenient for support and roofing level.

Please refer to fig. 4, step 4: the waterproof plate 5 is laid on the profiled steel sheet 6 and the lower inclined framework 73 of the supporting framework 7.

The waterproof board 5 comprises a self-adhesive waterproof coiled material 51 and a sea waterproof board 52, the waterproof board is bent according to a three-dimensional model and a drawing, so that the waterproof board can be matched with the shape of the supporting framework 7, and the installation method of the waterproof board 5 specifically comprises the following steps:

step 4.1: the sea defense plate 52 is fixedly paved on the profiled steel sheet 6 and the lower inclined framework 73 of the supporting framework 7 through blind rivets, preferably, the joint of the sea defense plate 52 and the rivets is coated with antirust paint for covering, and the sea defense plate 52 can be made of stainless steel materials with the thickness of 1 mm.

Step 4.2: the self-adhesive waterproof coiled material 51 is attached and laid on the surface of the sea screen 52. Preferably, the laying sequence of the self-adhesive waterproof coiled material 51 is as follows: from bottom to top and from the middle to both sides.

Step 4.3: the self-adhesive waterproof coiled materials 51 on the two adjacent marine protection plates 52 are mutually lapped, preferably, the lapping overlapping width of the self-adhesive waterproof coiled materials 51 is not less than 100mm, and the integral waterproof capacity of the roof structure is ensured.

Please refer to fig. 5, step 5: an eaves rafter metal plate 8 is mounted on the lower oblique framework 73 of the supporting framework 7, and the eaves rafter metal plate 8 is laid on the outer side of the waterproof board 5. Preferably, eaves rafter metal sheet 8 lay the order for from down upwards, from middle to both sides, and leave the clearance between two adjacent eaves rafter metal sheets 8, the clearance width is about 6mm, for the expend with heat and contract with cold reserve deformation space of metal sheet, can reduce the installation deviation in the construction simultaneously.

Eaves rafter metal sheet 8 include down mouthful eaves rafter board 81, middle level eaves rafter board 82 and top layer eaves rafter board 83, eaves rafter metal sheet 8's the method of laying specifically is:

step 5.1: the lower edge rafter board 81 is installed on the lower portion of the lower oblique framework 73 of the supporting framework 7 through three corner fastener self-tapping screws, and two ends of the lower edge rafter board 81 are fixed through four buckle cover type pressing fasteners, so that effective fixation of the lower edge rafter board 81 is guaranteed.

Step 5.2: the middle layer eave rafter plate 82 is installed in the middle of the lower oblique framework 73 of the supporting framework 7 in a sealing mode through adhesive tapes, and two ends of the middle layer eave rafter plate 82 are fixed through four cover-buckling type pressing codes, so that the middle layer eave rafter plate 82 is effectively fixed.

Step 5.3: the upper portion of the lower oblique framework 73 of the supporting framework 7 is provided with the top layer eave rafter board 83 in a sealing mode through the adhesive tape, and the two ends of the top layer eave rafter board 83 are fixed through four buckle cover type pressing codes and three corner code self-tapping nails, so that the top layer eave rafter board 83 is effectively fixed.

Please refer to fig. 6, step 6: purlins 4 are horizontally laid on an upper inclined framework 72 of the supporting framework 7, and the purlins 4 are fixed on an adapter 74 penetrating through the profiled steel sheet 6 and the waterproof sheet 5. The mounting method of the purline 4 specifically comprises the following steps: purlin 4 passes through L type connecting plate 41 and on adaptor 74 through bolt fixed mounting, and purlin 4's height is adjusted to accessible L type connecting plate 41, adopts the guiding rule to measure, and purlin 4's unevenness controls within 5mm around guaranteeing to be convenient for improve the whole pleasing to the eye and the quality of roofing. Preferably, the purlines 4 are made of aluminum alloy.

And 7: lay rafter 3 on purlin 4, rafter 3 lay the mode for laying from the eaves mouth to the ridge, two piece adjacent rafters 3's interval can be adjusted and lay according to metal tile 2's size and typeset rule, rafter 3's both ends adopt the self tapping to bore the screw both-way fastening certainly, can lay anticorrosive gasket between rafter 3 and the purlin 4, improve anticorrosive antirust performance. Preferably, the rafters 3 can be formed by connecting two U-shaped stainless steel keels with opposite openings.

Referring to fig. 7 and 8, step 8: and laying the metal tile 2 on the rafters 3. The laying sequence of the metal tile 2 is as follows: the metal tile 2 comprises a plate tile 21 and a cylindrical tile 22 from the middle to two sides, and the plate tile 21 and the cylindrical tile 22 are paved at intervals. When the plate tiles 21 are laid, the front plate tiles 21 and the rear plate tiles 21 are in butt joint and are in full welding, are polished to be flat, are installed after being lengthened, the folded edges of the plate tiles 21 are fixed with the U-shaped stainless steel keels on the lower portions of the rafters 3 through self-tapping self-drilling screws, and the tube tiles 22 are fixed with the U-shaped stainless steel keels on the upper portions of the rafters 3 through the self-tapping self-drilling screws, so that the attractiveness of the roof is guaranteed.

Please refer to fig. 9, step 9: the metal pressing beam 1 is installed at the ridge, the upper end of the sea screen plate 52 of the waterproof plate 5 extends into the metal pressing beam 1, the seam of the pressing beam is sealed by welding, the integral air tightness and water tightness of the roof structure are improved, the waterproof plate 5 covers the upper inclined framework 72 and the lower inclined framework 73, and an integral sealing system is formed between the supporting framework 7 and the structure main body 10.

Please refer to fig. 10, step 10: the eaves mouth end of the tile 21 of the metal tile 2 is fixedly provided with the dripping water 24 through two M3.2 rivets, and the eaves mouth end of the tile 22 of the metal tile 2 is fixedly provided with the hook head 23 through a 1mm metal plate bracket through three M3.2 stainless steel rivets, so that the end head structural strength of the roof structure is ensured.

After the installation of the combination roofing of metal tile and metal eaves rafter was accomplished, roofing quality inspection should be carried out, and the inspection requirement is: the tile ridge spacing is consistent, and the tile ridge straightness, the tile ridge perpendicularity with the eave sealing plate, the roof flatness deviation, the ridge straightness, the prop ridge straightness deviation, the tile joint deviation with the pantile and the eave dripping straightness of the hook head all meet the design requirements. And after the metal tile 2 is qualified in inspection and acceptance, local dust in the installation process is cleaned, then the protective film is removed, and 2-time water spraying tests are organized to ensure that the roof is qualified in waterproof.

The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.