CN102182271B - Waterproof system for sliding metal roof under parapet wall - Google Patents
Waterproof system for sliding metal roof under parapet wall Download PDFInfo
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- CN102182271B CN102182271B CN2011100736721A CN201110073672A CN102182271B CN 102182271 B CN102182271 B CN 102182271B CN 2011100736721 A CN2011100736721 A CN 2011100736721A CN 201110073672 A CN201110073672 A CN 201110073672A CN 102182271 B CN102182271 B CN 102182271B
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Abstract
The invention provides a waterproof system for a sliding metal roof under a parapet wall, comprising an upper sliding bracket, a lower sliding bracket, an inner flashing board, special edge sealing steel angle, a hidden type gutter, a roof board, an inner wallboard, a flashing conversion piece, a gable purline, a roof purline, a heat-insulation layer and a foaming plug. In the invention, the two sliding brackets are fixed on the special edge sealing steel angle, and then the hidden type gutter and the inner flashing board are connected with the upper sliding bracket and the lower sliding bracket by sliding sheets, so that the whole roof system is tight and firm in connection, and slide properly relative to the roof purline and the inner wallboard, and the defect that the connection point is torn off and leaks water caused by unsmooth sliding between the flashing board and gable support steel angle in the prior art can be solved sufficiently, and due the special design of the inner flashing board, the difficulty of water leakage caused by aged plaster at the roof board nail position is solved, so that the rigid waterproof property of the sliding roof connecting system can be realized.
Description
Technical field:
The present invention relates to a kind of parapet lower slider metal Roof waterproofing system, particularly a kind of flashing spare that is applied in parapet lower slider metal Roof in steel work and the light steel and color plate building is used sliding support.
Background technology:
Steel work and light steel and color plate building have been widely used in civilian construction, industrial premises, warehouse, workshop, museum etc.; In above-mentioned various buildings, the existence of this functional architecture key element of parapet is generally all arranged, and the position that parapet and roofing link; The object that important prevention is leaked in the Roof system just; Because the materials for wall and the roofing materials of light steel and color plate building are all color profiling steel plate, exist template different therebetween, and the also different phenomenon of template forming direction; Cause and often can't realize that therebetween rigidity links; Major part can only be fixed with pulling rivet or suturing nail through after establishing clay and overlap at folder between colored steel, and this is a kind of mode of connection of flexible water.The connection of prior art parapet lower node system is as shown in Figure 1, normally gable is supported angle steel A and is fixed on the roof purline 9, is supporting lay heat insulation C between angle steel A and the B then; And end bay metal roofing board 4 ' is placed on supports on the angle steel B, afterwards, flashing plate support D is fixed on the support angle steel B with self-tapping screw with the end bay metal roofing board together; Flashing spare 2 ' left end is attached to gable and supports on the angle steel A, and right-hand member is fixed on the end bay metal roofing board 4 ', and inner wall panel 6 is fixed on gable and supports on the angle steel A; Flashing spare 2 ' is clamped at and supports between angle steel A and the inner wall panel 6; Because inner wall panel 6 is not connected with flashing spare 2 ', supports flashing spare so be provided with elongated bracing frame, causes waste of material thus; Bracing frame all is connected through suturing nail with roof panel with flashing spare simultaneously; Its nail hole also can leak along with the aging of clay, although those skilled in the art are constantly studying the ageing resistance that improves fluid sealant and clay, sealing effectiveness at most also can only be kept 5～8 years; And the life-span of rigid building can reach 50～70 years, so can't accomplish that at all fluid sealant and building have the identical life-span; In addition, because flashing spare 2 ' has longitudinal lap joint, when overlapping the slot place is leaked; Leak and directly to fall on the end bay metal roofing board under the flashing spare 2 '; And advance end bay metal roofing board downside through the fixing nail orifice flow of flashing plate support, cause roof panel to leak, because the binding between flashing spare 2 ' and gable support angle steel A is that inner wallboard 6 compresses; It slides relatively and has uncertainty; In case when having self-tapping screw to be fixed on flashing spare 2 ' on the gable support angle steel in the work progress, will influence flashing spare 2 ' and gable and support the slip between the angle steel A, cause binding here to follow closely the hole and tear, leak.
Summary of the invention:
The invention provides a kind of sliding metal roof waterproof system that mainly forms by roofing sliding support, special-purpose edge sealing angle steel and interior flashing plate; Through being fixed on two sliding supports on the special-purpose edge sealing angle steel, more concealed gutter being reached interior flashing plate and sliding support slide plate ways of connecting; Make the connection of whole Roof system promptly tight, firm, can suitably slide again; Fully solve prior art flashing plate and gable and supported the aging difficult problem of leaking of causing of the uncertainty of sliding between the angle steel and place, composition nail hole clay, thereby realized the rigid waterproofing of slip roofing connected system.
The system of being slidingly connected of this gable node can implement through following steps:
Step 2, on the top of mounted special-purpose edge sealing angle steel side elevation 32; 300-800mm will go up the inboard that sliding support 1 is fixed in the special-purpose edge sealing angle steel of gable side elevation 32 with connected nail along its length direction interval; Apart from 31 about 20mm places, special-purpose edge sealing angle steel bottom, with connected nail lower slider support 1 ' is fixed in the right side of special-purpose edge sealing angle steel side elevation 32 bottoms along the length direction interval 1000-2000mm of special-purpose edge sealing angle steel 3 simultaneously.
Step 3, with the left end stile 41 of concealed gutter 4, be fixed in connected nail on the slide plate of lower slider support 1 ', lay roof panel 5 at the right-hand member of concealed gutter 4 then.
Step 4, the stile right side after concealed gutter and roof panel interlock; Elongated along its length laying self-adhesion clay; The side elevation of flashing bridgeware 7 is close to the self-adhesion clay; With suturing nail interval 200-300mm flashing bridgeware 7 is fixed in above-mentioned concealed gutter and the stile right side after the roof panel interlock then, on the joint face of the top of flashing bridgeware 7, lays elongated self-adhesion clay again.
Step 5, with the left end stile 21 of interior flashing plate 2; Be fixed in connected nail on the slide plate 14 of sliding support; With the right-hand member of interior flashing plate 2, be placed on the self-adhesion clay on the flashing bridgeware 7 top joint faces simultaneously, fix with connected nail then; There is the angle of inclination of 2-5 degree on flashing plate main body inclined-plane 22 in must guaranteeing during installation, so that rainwater can be discharged on the roof panel smoothly.Also can 22 right end bend a flanging 23, can increase the rigidity on main body inclined-plane 22, and can stop rainwater to reflux on the main body inclined-plane; Soaking the self-adhesion clay on the flashing bridgeware 7 top joint faces, denys the person, after rainwater refluxes; Can quicken the aging of clay; Rainwater can flow in the concealed gutter 4 from aging clay slit, has strengthened the amount of rainfall that gets into concealed gutter, brings burden for concealed gutter.
Slip roof waterproof of the present invention system; Through being fixed on two sliding supports on the special-purpose edge sealing angle steel, more concealed gutter being reached interior flashing plate and upper and lower two sliding support ways of connecting, make the connection of whole Roof system promptly tight, firm, can suitably slide with respect to roof purline and inner wall panel again; Fully solved between prior art flashing plate and the gable support angle steel and torn the defective of leaking because of the tie point that does not freely cause that slides; The particular design of concealed gutter, interior flashing plate and flashing bridgeware directly connects the flashing spare and the flashing bridgeware of prior art through the trough place of suturing nail at roof panel, becomes at concealed gutter to be connected indirectly with the crest place of roof panel; Any nail hole is not set on the roof panel; Can often do not soaked in rainy season by rainwater, can be in the winter time because of snow melt does not soak, therefore yet; Its suffered freezing-thawing cycles significantly reduces; The corresponding water resistance that promptly improved greatly, even if in rainy season, general rainwater also is difficult to reach the position of crest; In slip roof waterproof of the present invention system, even if the interior flashing plate that occurs under the parapet leaks in longitudinal lap joint place, water also can drop on the concealed slip gutter; Afterwards; Drain in the gutter of building roof, fall into below the metal roofing board, thereby thoroughly solved the aging difficult problem of leaking that causes of place, composition nail hole clay and be unlikely; Improve the application life of building greatly, realized the rigid waterproofing of slip roofing connected system.
Description of drawings
Fig. 1 prior art parapet lower slider roofing connects sketch map
Fig. 2 parapet lower slider of the present invention roofing connected node sketch map
The upper and lower sliding support schematic perspective view of Fig. 3 the present invention
The upper and lower sliding support left view of Fig. 4 the present invention
The slide plate sketch map of the upper and lower sliding support of Fig. 5 the present invention
Shown in the figure: A is that to support angle steel, B be that strut angle, C are that heat insulation, D are that flashing plate support, 1 is the main body inclined-plane for facade, 22 on the interior flashing plate for interior flashing plate, 21 for temporary fixed hole, 2 for the anti-key that inclines, 17 for slideway, 16 for slide plate, 15 for facade down, 14 for mid-plane, 13 for facade on the sliding support, 12 for lower slider support, 11 for last sliding support, 1 ' to gable; 23 is flanging, and 3 is that special-purpose edge sealing angle steel, 31 is the foam plug for insulation layer, 11 for roof purline, 10 for gable purlin, 9 for flashing bridgeware, 8 for inner wall panel, 7 for roof panel, 6 for concealed gutter, 5 for last facade, 4 for main body facade, 33 for special-purpose edge sealing angle steel bottom, 32.
Specific embodiment
Slip roof waterproof of the present invention system comprises sliding support 1, lower slider support 1 ', interior flashing plate 2, special-purpose edge sealing angle steel 3, concealed gutter 4, roof panel 5, inner wall panel 6, flashing bridgeware 7, gable purlin 8, roof purline 9, insulation layer 10, foam plug 11; Wherein said special-purpose edge sealing angle steel 3 comprises bottom 31, main body facade 32 and goes up facade 33; Special-purpose edge sealing angle steel 3 is fixed on the roof purline 9 that is covered with insulation layer through connected nail; Last sliding support 1 and lower slider support 1 ' are fastened on the upper and lower of special-purpose edge sealing angle steel main body facade 32 respectively; Concealed gutter 4 is connected with the lower slider support, and interior flashing plate 2 is connected with last sliding support, and inner wall panel 6 is connected fixing with last facade 33; As shown in Figure 2; Upper and lower sliding support of the present invention is by last facade 11, mid-plane 12, facade 13, slide plate 14 are formed down, wherein said go up facade 11 and following facade 13 makes progress respectively, downward vertically in the right ends of mid-plane 12, the three is a main body; As shown in Figure 4, there is a horizontal slideway 15 centre of last facade 11; Slide plate 14 is connected in the slideway 15 through the buckle of the approximate prismatic on its top; The buckle of wherein said approximate prismatic is before slide plate and the assembling of last facade, and the middle part of slide plate is folded a groove earlier, groove is inserted in the slideway again; Form in slideway through punching press; As shown in Figure 5, the prismatic buckle is connected to slide plate 14 in the slideway 15, and slide plate 14 and last facade 11 not only are connected firmly but also can slide relatively; The two ends, middle part of slide plate are provided with the anti-key 16 that inclines, and resisting inclines leaves the slit between key 16 and the slide plate, through this slit slide plate 14 is connected on the facade 11, are used for guaranteeing that slide plate 14 can be not outward-dipping in installation or use, and are as shown in Figure 5; In addition, can each make a locating hole 17 near the top of the centre position at top and slide plate 14 at last facade 11, slide plate 14 is temporarily fixed on the centre of facade 11 through temporary fixed nail; During with the assurance construction, slide plate 14 can be accurately positioned in the centre position of slideway, and is as shown in Figure 3; Temporary fixed nail can be selected brittle plastic nail etc.; Like wall thickness is that 0.5mm, diameter are the brittle plastic nail of 3.5mm, and its maximum shear that can bear is 50N, and the shearing that roof panel produces because of variations in temperature herein is far longer than 50N; Be generally more than the 45000N; So when roof panel produced STRESS VARIATION, this continuously connected fastener promptly can be cut off voluntarily and can not hinder the slip of slide plate in slideway in practical application, the brittle plastic nail is the commercial goods; Flashing plate 2 comprises facade 21, main body inclined-plane 22 in of the present invention, the preferred 50-100mm of the height of last facade 21, and the angle of inclination on main body inclined-plane 22 is the 2-5 degree; Last facade 21 is positioned at the inboard of inner wall panel 6; And be connected with the slide plate 14 of last sliding support through connected nail, in addition, can 22 right end bend a flanging 23 on the main body inclined-plane; This flanging can increase the rigidity on main body inclined-plane 22, also has the effect that stops rainwater to reflux; The left end of concealed gutter 4 of the present invention has a stile of upwards turning up 41; Stile 41 is fixed on the slide plate 14 of lower slider support; To guarantee that concealed gutter can slide with respect to roof purline 9; Leaking when the preferred 25-40mm of the height of stile 41, concealed gutter 4 can be with interior flashing plate 2 transverse laps is discharged in the gutter; Flashing bridgeware 7 is a both sides shape, and its stile is connected on the stile after concealed gutter 4 and roof panel 5 interlocks, the top joint face be fixed on flashing spare main body inclined-plane 22 below, as shown in Figure 2; Insulation layer 10 of the present invention is laid on the roof purline 9, and insulation layer 10 can be selected heat insulating materials such as glass silk flosssilk wadding or rock wool; Foam plug 11 is arranged on inner wall panel 6 and the special-purpose edge sealing angle steel between the facade 33.The present invention slides connected nail that the roof waterproof system adopts can be according to construction needs employing pulling rivet, self-tapping screw, suturing nail etc.; Interior flashing spare and flashing bridgeware can adopt metal sheet roof coverings such as color steel sheet or the corrosion resistant plate of 0.5-0.8mm, but perhaps adopt the nonmetal thin plate of bending to be processed into standard component; Sliding support of the present invention is the standard stamping parts, has realized standardization, versatility.
Embodiment one
The described sliding metal roof waterproof of present embodiment system comprises sliding support 1, lower slider support 1 ', interior flashing plate 2, special-purpose edge sealing angle steel 3, concealed gutter 4, roof panel 5, inner wall panel 6, flashing bridgeware 7, gable purlin 8, roof purline 9, insulation layer 10, foam plug 11.Wherein said special-purpose edge sealing angle steel 3 comprises bottom 31, main body facade 32 and goes up facade 33, adopts the thick galvanized steel plain sheet bending of 2.0mm to form; Described upper and lower sliding support all adopts the thick Zinc-coated steel-plated punch of 1.0mm to form; It is 40mm that the left end of described concealed gutter 4 has the height of a stile of upwards turning up 41; Last facade 21 height of interior flashing plate 2 are 100mm, main body inclined-plane 22 3 degree that tilt, on the main body inclined-plane 22 right end curved one wide be the flanging 23 of 20mm, increase the rigidity on main body inclined-plane 22, and can stop the rainwater backflow; The described insulation layer 10 of present embodiment is that 100mm is thick; Be laid on the roof purline; Foam plug 11 is arranged on inner wall panel 6 and the special-purpose edge sealing angle steel between the facade 33, and interior flashing plate, concealed gutter, roof panel, inner wall panel, flashing bridgeware all adopt the thick color steel sheet of 0.6mm.
The system of being slidingly connected of present embodiment gable node can implement through following steps:
Step 2, on the top of special-purpose edge sealing angle steel side elevation 32; 500mm will go up the inboard that sliding support 1 is fixed in the special-purpose edge sealing angle steel of gable side elevation 32 with self-tapping screw along its length direction interval; Apart from 31 about 20mm places, special-purpose edge sealing angle steel bottom, with self-tapping screw lower slider support 1 ' is fixed in the right side of special-purpose edge sealing angle steel side elevation 32 bottoms along the length direction interval 2000mm of special-purpose edge sealing angle steel 3 simultaneously;
Step 3, with the left end stile 41 of concealed gutter 4, be fixed in pulling rivet on the slide plate of lower slider support 1 ', lay roof panel 5 at the right-hand member of concealed gutter 4 then;
Step 4, the stile right side after concealed gutter and the interlock of metal Roof contour plate; Elongated along its length laying self-adhesion clay; The side elevation of flashing bridgeware 7 is close to the self-adhesion clay; With suturing nail interval 200mm flashing bridgeware 7 is fixed in above-mentioned concealed gutter and the stile right side after the roof panel interlock then, on the joint face of the top of flashing bridgeware 7, lays elongated self-adhesion clay again;
Step 5, with the left end stile 21 of interior flashing plate 2, be fixed in pulling rivet on the slide plate 14 of sliding support, the height of interior flashing plate left end stile 21 is 100mm; With the right-hand member of interior flashing plate 2, be placed on the self-adhesion clay on the flashing bridgeware 7 top joint faces simultaneously, every then interval 200mm fixes with pulling rivet; There is the angle of inclination of 2-5 degree on flashing plate main body inclined-plane 22 in must guaranteeing during installation; So that rainwater can be discharged on the roof panel smoothly, and on the main body inclined-plane the curved flanging 23 that 20mm is wide of 22 right end, increase the rigidity on main body inclined-plane 22; Stop rainwater to reflux, soak the self-adhesion clay on the flashing bridgeware 7 top joint faces;
Embodiment two
The described sliding metal roof waterproof of present embodiment system comprises sliding support 1, lower slider support 1 ', interior flashing plate 2, special-purpose edge sealing angle steel 3, concealed gutter 4, roof panel 5, inner wall panel 6, flashing bridgeware 7, gable purlin 8, roof purline 9, insulation layer 10, foam plug 11.Wherein said special-purpose edge sealing angle steel 3 comprises bottom 31, main body facade 32 and goes up facade 33, adopts the thick general steel plate bending of 2.5mm to form; Described upper and lower sliding support all adopts the thick corrosion resistant plate of 1.5mm to be stamped to form; It is 50mm that the left end of described concealed gutter 4 has the height of a stile of upwards turning up 41; The last facade 21 of interior flashing plate 2 is high for 80mm, 22 angles of inclination, main body inclined-plane are 5 degree, on the main body inclined-plane 22 right end curved one wide be the flanging 23 of 50mm, increase the rigidity on main body inclined-plane 22, and can stop the rainwater backflow; The described insulation layer 10 of present embodiment is that 150mm is thick; Be laid on the roof purline; Foam plug 11 is arranged on inner wall panel 6 and the special-purpose edge sealing angle steel between the facade 33, and interior flashing plate, concealed gutter, roof panel, inner wall panel, flashing bridgeware all adopt the coloured coating galvanized steel plain sheet behind the 0.7mm.
The construction sequence of the system that is slidingly connected of present embodiment gable node: identical with embodiment one.
Claims (10)
1. parapet lower slider metal Roof waterproofing system; Flashing plate (2), special-purpose edge sealing angle steel (3), concealed gutter (4), roof panel (5), inner wall panel (6), flashing bridgeware (7), roof purline (9), insulation layer (10), foam plug (11) in comprising; It is characterized in that also comprising that sliding support (1) and lower slider support (1 '), described special-purpose edge sealing angle steel (3) are fixed on the roof purline (9); Last sliding support (1), lower slider support (1 ') and inner wall panel (6) are fastened on respectively on the special-purpose edge sealing angle steel (3); Concealed gutter (6) is connected with lower slider support (1 '), and interior flashing plate (2) is connected (1) with last sliding support.
2. parapet lower slider metal Roof waterproofing system as claimed in claim 1; It is characterized in that described upper and lower sliding support is by last facade (11), mid-plane (12), facade (13) and slide plate (14) are formed down; Last facade (11) and following facade (13) make progress respectively, downward vertically in the right ends of mid-plane (12); There is a horizontal slideway (15) centre of last facade (11), and slide plate (14) is connected in the slideway (15) through the buckle of the approximate prismatic on its top.
3. according to claim 1 or claim 2 parapet lower slider metal Roof waterproofing system; It is characterized in that described special-purpose edge sealing angle steel (3) comprises bottom (31), main body facade (32) and goes up facade (33); Bottom (31) is fixed on the roof purline (9) through connected nail; Last sliding support (1) and lower slider support (1 ') are separately fixed at the upper and lower of main body facade (32), and inner wall panel (6) is connected fixing with last facade (33).
4. according to claim 1 or claim 2 parapet lower slider metal Roof waterproofing system; It is characterized in that described interior flashing plate (2) comprises facade (21), main body inclined-plane (22); The angle of inclination on main body inclined-plane (22) is the 2-5 degree; Said upward facade (21) is positioned at the inboard of inner wall panel (6), and is connected with the slide plate (14) of last sliding support through connected nail.
5. according to claim 1 or claim 2 parapet lower slider metal Roof waterproofing system is characterized in that the left end of described concealed gutter (4) has a stile of upwards turning up (41), and stile (41) is fixed on the slide plate (14) of lower slider support.
6. according to claim 1 or claim 2 parapet lower slider metal Roof waterproofing system; It is characterized in that described flashing bridgeware (7) is a both sides shape; Its stile is connected on the stile after concealed gutter (4) and roof panel (5) interlock, the top joint face be fixed on flashing spare main body inclined-plane (22) below;
7. according to claim 1 or claim 2 the method for attachment of parapet lower slider metal Roof waterproofing system comprises the steps:
1. the roof panel length direction is laid insulation layer (10) in roof purline (9) upper edge at gable place, and on insulation layer, elongated special-purpose edge sealing angle steel (3) is installed, and the bottom (31) of special-purpose edge sealing angle steel is fixed on the roof purline with connected nail;
2. on the top of mounted special-purpose edge sealing angle steel, will go up sliding support (1) with connected nail and lower slider support (1 ') is individually fixed in the inboard upper and lower of gable edge sealing angle steel side elevation (32) along its length direction;
3. with the left end stile (41) of concealed gutter (4), be fixed in connected nail on the slide plate of lower slider support (1 '), lay roof panel (5) at the right-hand member of concealed gutter (4) then;
4. flashing bridgeware (7) is installed on the stile right side after concealed gutter and roof panel interlock;
5. with the left end stile (21) of interior flashing plate, be fixed in connected nail on the slide plate (14) of sliding support (1),, be placed on the joint face of flashing bridgeware (7) top, fix with connected nail then simultaneously with the right-hand member of interior flashing plate (2);
6. with laying foam plug (11) on inner wall panel (6) and the special-purpose edge sealing angle steel between the facade (33), with connected nail the lower end of inner wall panel (6) is fixed in the right side of the last facade (33) of special-purpose edge sealing angle steel (3) then.
8. the method for attachment of parapet lower slider metal Roof waterproofing system as claimed in claim 7 is characterized in that 300-800mm setting at interval between the adjacent last sliding support (1), 1000-2000mm setting at interval between the lower slider support (1 ').
9. the method for attachment of parapet lower slider metal Roof waterproofing system as claimed in claim 7, in it is characterized in that installing during the flashing plate, the curved flanging (23) of right end on main body inclined-plane (22).
10. the method for attachment of parapet lower slider metal Roof waterproofing system as claimed in claim 7 is characterized in that the distance on the interior flashing plate main body inclined-plane of distance, lower end (22) of parapet inner wall panel (6) is 20-30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100736721A CN102182271B (en) | 2011-03-25 | 2011-03-25 | Waterproof system for sliding metal roof under parapet wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100736721A CN102182271B (en) | 2011-03-25 | 2011-03-25 | Waterproof system for sliding metal roof under parapet wall |
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| Publication Number | Publication Date |
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| CN102182271A CN102182271A (en) | 2011-09-14 |
| CN102182271B true CN102182271B (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100736721A Active CN102182271B (en) | 2011-03-25 | 2011-03-25 | Waterproof system for sliding metal roof under parapet wall |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103255881B (en) * | 2013-05-10 | 2015-03-04 | 上海宝冶集团有限公司 | Waterproof structure of special-shaped gable wall |
| CN106894584A (en) * | 2015-12-17 | 2017-06-27 | 五冶集团上海有限公司 | The U-shaped drainage gutter installation method of metal sandwich roof plate |
| CN106939671B (en) * | 2016-01-05 | 2019-03-15 | 五冶集团上海有限公司 | Metal sandwich roof plate construction method |
| CN107338914A (en) * | 2017-08-31 | 2017-11-10 | 中铝南铝（福建）铝结构技术开发有限公司 | A kind of joint structure system for the gable for having a parapet pillar |
| CN108193835B (en) * | 2017-12-28 | 2023-12-01 | 山东雅百特科技有限公司 | Be used for roofing slidingtype accessory structure |
| CN111155724A (en) * | 2020-01-08 | 2020-05-15 | 中铁六局集团有限公司 | Roof gable node |
| CN112695958B (en) * | 2020-12-22 | 2021-07-27 | 柯昇建筑工程有限公司 | Energy-concerving and environment-protective type metal roofing |
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