CN220686521U - Waterproof construction suitable for roofing maintenance usefulness - Google Patents

Abstract

The utility model relates to the technical field of building construction, and provides a waterproof structure suitable for roof maintenance, which comprises a water seepage and exhaust strip arranged at one side of the bottom of a roof heat preservation layer, wherein one side of the water seepage and exhaust strip is connected with a water falling port through a water seepage and exhaust strip branch connected with the water seepage and exhaust strip, the water seepage and exhaust strip is upwards connected with a ventilation groove arranged above the roof heat preservation layer through a connecting piece, the top of the ventilation groove is provided with a waterproof cover plate, water in the roof heat preservation layer can flow into the water falling port through the water seepage and exhaust strip branch, and air in the roof heat preservation layer can be discharged through the ventilation groove through the connecting piece. According to the utility model, the water drainage and exhaust channels are arranged on the roof, so that the heat preservation layer in the roof can drain water downwards and exhaust air upwards, the difficult problem of roof water seepage or water leakage caused by heat preservation laminated water in the old roof is solved, the waterproof effect of the roof is greatly improved, and the problem of poor heat preservation effect of the heat preservation layer is solved.

Description

Waterproof construction suitable for roofing maintenance usefulness

Technical Field

The utility model relates to the technical field of building construction, in particular to a waterproof structure suitable for roof maintenance, and especially relates to a waterproof structure suitable for roof maintenance.

Background

The roof of old house is usually prefabricated sheet layer, the screed-coat, the heat preservation, the integrated configuration of waterproof layer from bottom to top in proper order, because house life is for a long time, the waterproof layer on roof top has mostly been destroyed, and because the roofing is suffered sun-drying rain for a long time, further make the waterproof layer destroy seriously, in the rainwater gets into the heat preservation through the waterproof layer when raining, when the rainy period is finished, the irradiation of sun makes the temperature in the heat preservation rise along with the rising of temperature, produce rapid expansion and forms steam, the water vapor that is trapped upwards walks and can arouse the roofing deformation, the ageing of roofing has been accelerated, form new damage point, walk down and run out from the gap department of prefabricated sheet layer, the initial stage arouses the wall moisture and forms the mould spot, long-term seepage will form the water droplet, until the water droplet is continuous. Therefore, the water leakage symptom of the old house is mainly that the water leakage phenomenon is not obvious when the old house rains, and the water leakage is continuous when the old house rains out, so that great inconvenience is brought to people living in the old house.

When maintaining old roofing, need demolish former waterproof layer of roofing and above structure level, do the waterproof treatment again, the waterproof construction's that forms during the maintenance among the prior art drainage effect is relatively poor, easily causes roofing ponding, and the gas in the heat preservation also is difficult to discharge to increase roofing seepage hidden danger, in addition, when roofing seepage back, a large amount of water intakes in the heat preservation, influences the heat preservation effect, in view of above problem, need to design a new structure in order to solve the difficult problem in the maintenance process.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a waterproof structure suitable for roof maintenance.

According to the waterproof structure suitable for roof maintenance, the waterproof structure comprises the water seepage and exhaust strips arranged on one side of the bottom of the roof heat preservation layer, one side of each water seepage and exhaust strip is connected with a water falling port through a water seepage and exhaust strip branch connected with the water seepage and exhaust strip, each water seepage and exhaust strip is upwards connected with a ventilation groove arranged above the roof heat preservation layer through a connecting piece, a waterproof cover plate is arranged at the top of each ventilation groove, water in the roof heat preservation layer can flow into the water falling port through each water seepage and exhaust strip branch, and air in the roof heat preservation layer can be discharged through the ventilation grooves through the connecting piece.

Preferably, the ventilation groove is positioned between two water blocking strips on two sides above the expansion joint, and the water blocking strips are of a concrete structure.

Preferably, the waterproof cover plate is adhered and fixed on the upper part of the water bar.

Preferably, the two ends of the water bar are provided with water retaining pressure plates, and the water retaining pressure plates are used for preventing rainwater from entering the roof heat insulation layer from the two sides of the ventilation groove.

Preferably, the waterproof cover plate is of a -shaped structure, and the water retaining pressing plate is of an inverted L-shaped structure.

Preferably, the waterproof cover plate and the water retaining pressure plate are made of stainless steel.

Preferably, the water seepage and exhaust strip branch and the connecting piece are all parts of the pipe fitting cut along the axial direction or parallel to the axial direction.

Preferably, openings are respectively arranged on the side surfaces of the water seepage and exhaust strips, and the water seepage and exhaust strip branches and the connecting pieces are respectively inserted into the openings.

Preferably, stainless steel cornices and/or stainless steel pressing plates are arranged above the edges of the waterproof coiled materials stuck on the roof gutter, the adjacent waterproof coiled materials are arranged in a lap joint mode, and the lap joint width is not smaller than 100mm.

Preferably, the gutter adopts a structure of trowelling by light mortar, and the internal corner is in a circular shape.

Preferably, the gutter is inclined towards the water outlet, and the gradient is 2-4%.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the drainage and exhaust channels are arranged in the roof repairing process, so that the maintained heat-insulating layer in the roof can drain water downwards and exhaust air upwards, the difficult problem of roof water seepage or water leakage caused by heat-insulating laminated water in the old roof is solved, the waterproof effect of the roof is greatly improved, the problem of water seepage or water leakage of the old roof is fundamentally solved, and the problem of poor heat-insulating effect of the heat-insulating layer is also solved.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a schematic view of a structure of a roof insulation layer exposed after a part of the thickness is cut into the roof along a gutter edge in the shoveling construction process;

FIG. 2 is a schematic diagram of a cross-sectional structure after the structure to be repaired has been removed;

FIG. 3 is a schematic cross-sectional structure of the gutter after repair;

FIG. 4 is a schematic cross-sectional view of the water bar with the waterproof cover plate fixed to the top;

FIG. 5 is a schematic view of the structure of the dividing plate when dividing the dividing plate into a plurality of dividing molds;

fig. 6 is a schematic cross-sectional view of the water permeable and air permeable strips laid on a roof structural layer, wherein the water permeable and air permeable strips in fig. a are round tubes, and the water permeable and air permeable strips in fig. b are square tubes.

The figure shows:

roof heat insulation layer 1

Gutter 2

Roof structural layer 3

Water seepage and exhaust strip 4

Water seepage and exhaust branch 41

Connector 42

Drain 5

Breathable groove 6

Water bar 61

Waterproof cover plate 62

Stainless steel pressure plate 7

Stainless steel cornice 8

Waterproof coiled material 9

Leveling layer 10

Dividing plate 11

Detailed Description

The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.

Example 1:

the utility model provides a waterproof structure suitable for roof maintenance, as shown in figure 1, the waterproof structure comprises a water seepage and exhaust strip 4 arranged at one side of the bottom of a roof heat preservation layer 1, one side of the water seepage and exhaust strip 4 is connected with a water falling port 5 through a water seepage and exhaust strip branch 41 connected with the water seepage and exhaust strip 4, the water seepage and exhaust strip 4 is upwards connected with a ventilation groove 6 arranged above the roof heat preservation layer 1 through a connecting piece 42, the ventilation groove 6 is positioned between two water retaining strips 61 at two sides above an expansion joint, the water retaining strips 61 are of a concrete structure, the top of the ventilation groove 6 is provided with a waterproof cover plate 62, the waterproof cover plate 62 is of a structure, the waterproof cover plate 62 is preferably adhered and fixed at the upper part of the water retaining strips 61, water in the roof heat preservation layer 1 can flow into the water falling port 5 through the water seepage and exhaust strip branch 41, and air in the roof heat preservation layer 1 can be discharged through the ventilation groove 6 through the connecting piece 42, and the water seepage and exhaust strip 4, the water seepage and exhaust strip branch 41 and the connecting piece 42 arranged by the utility model realize the purpose of draining water and upper drainage and upper exhaust of the old roof heat preservation layer 1.

Further, the two ends of the water bar 61 are provided with water retaining pressing plates, the water retaining pressing plates are used for preventing rainwater from entering the roof heat insulation layer 1 from two sides of the ventilation groove 6, the water retaining pressing plates are of an inverted L-shaped structure, one ends of the water retaining pressing plates are adhered to the waterproof cover plate 62, the other ends of the water retaining pressing plates extend to the side face of the ventilation groove 6 to play a role in shielding the rainwater, and meanwhile, stainless steel is preferably adopted for the waterproof cover plate 62 and the water retaining pressing plates for prolonging the service life.

The water seepage and exhaust strip 4, the water seepage and exhaust strip branch 41 and the connecting piece 42 are all parts of the pipe fitting cut along the axial direction or parallel to the axial direction, the pipe fitting adopts a circular pipe, a square pipe or other forms of pipe fitting, in practical application, the water seepage and exhaust strip 4 is buckled at the installation position, as shown in fig. 6, the water seepage and exhaust strip 4 and the installation position form a channel 43, the channel 43 is used for water or gas leakage, the side surfaces of the water seepage and exhaust strip 4 are respectively provided with an opening, and the water seepage and exhaust strip branch 41 and the connecting piece 42 are respectively inserted into the openings to realize communication with the water seepage and exhaust strip 4.

In the maintenance of the roof, a stainless steel cornice 8 and/or a stainless steel pressing plate 7 are arranged above the edge of a waterproof coiled material 9 stuck on a roof gutter 2, the adjacent waterproof coiled materials 9 are arranged in a lap joint mode, the lap joint width is not less than 100mm, the gutter 2 adopts a structure of trowelling light mortar, the internal corner is in a circular shape, the gutter 2 finds a slope in the direction of a water falling opening 5, the slope is 2-4%, and the slope is preferably 3%.

Example 2:

this embodiment is a preferable example of embodiment 1.

In the embodiment, the old roof is maintained through the structure in the embodiment 1, firstly, construction preparation is carried out, the construction site is electrified and water is electrified, the working environment is kept clean, the vertical transportation of the outer wall and the erection of the scaffold are completed, the environmental temperature of the operation site is not lower than 5 ℃ in winter, the environmental temperature is not higher than 35 ℃ in summer, and the construction in summer is carried out to avoid sunlight exposure. The wind power is not more than 5 grades, and the construction is not needed in rainy and snowy days.

In this embodiment, the construction machines include high-speed dispersion electric mixer 2, electric cutting machine, manual electric pick, and the preferential rotational speed of specification model is not less than 1000r/min, and operating voltage 380V is mainly used stirs ultra-high performance concrete, and this electric mixer stirs evenly, and labour saving and effort saving. The power of 600-1000W is selected according to the specification and model of the electric cutting machine and the manual electric pick, and the electric cutting machine is mainly used for cutting and shoveling concrete, and tools such as a guiding ruler, an art designing knife, a ruler, an iron hammer, a high-pressure water gun, a shovel knife, a vibrating rod, a prying bar, a special roller, an electronic scale and the like can be used in the construction process.

In the embodiment, when the construction is shoveled, an electric cutting machine is used for cutting an original expansion joint of a roof into a flat expansion joint with the width of about 2cm, a crow bar is used for cleaning up fillers in the expansion joint, and the fillers are chiseled up to a heat preservation layer. When the heat preservation layer is exposed, a cutting machine is used for cutting the width of about 50mm into the roof along the side of the gutter 2 until the width is cut to the position which is the same with the bottom surface of the roof heat preservation layer 1, as shown in fig. 2, the side surface of the roof heat preservation layer 1 is exposed, and as the maintained roof waterproof layer is damaged, a large amount of accumulated water exists in the cut roof heat preservation layer 1, the side surface of the roof heat preservation layer 1 is exposed by cutting the roof, and the accumulated water is released from the side surface notch of the roof heat preservation layer 1. And meanwhile, the waterproof coiled material 9 and the leveling layer in the gutter 2 are shoveled and cleaned by using tools such as a shovel blade and an electric pick, the protective layer in the gutter 2 is cleaned, the protective layer is cleaned to the original roof structural layer 3, and the post construction is performed after accumulated water is discharged.

In this embodiment, as shown in fig. 1, after the accumulated water in the roof insulation layer 1 is drained, the water seepage and exhaust strip 4 is buried, and the water seepage and exhaust strip 4 is arranged along the edge of the gutter 2, so that the roof insulation layer 1 can be tightly attached to the water seepage and exhaust strip 4, so that water, air and the like in the roof insulation layer 1 can be drained through the water seepage and exhaust strip 4 after construction is completed, the water seepage and exhaust strip 4 is constructed in a circular baffle manner and slope finding manner for the gutter 2 after the construction is completed, the slope is 3%, the water falling port 5 is the lowest point during construction, and each part of the gutter 2 after construction is provided with a slope towards the water falling port 5, so that rainwater can flow towards the water falling port 5. During concrete construction, when no ponding flows out in the roof heat preservation layer 1, the water seepage and exhaust strip 4 is buried along the heat preservation side edge of the gutter 2, the arrangement direction of the water seepage and exhaust strip 4 is parallel to the length direction of the gutter 2, one side of the water seepage and exhaust strip 4 is connected with the water seepage and exhaust strip branch 41, the water seepage and exhaust strip 4 is communicated with the water seepage and exhaust strip branch 41, the tail end of the water seepage and exhaust strip branch 41 extends to the position of the water falling port 5, and water flowing out of the tail end of the water seepage and exhaust strip branch 41 can flow into the water falling port 5.

Further, in the construction process, a 2cm thick division plate 11 is filled in the expansion joint to form a division template, the division plate 11 adopts an extruded sheet, the depth is up to the upper surface of the original roof heat insulation layer 1 and is 15-18 mm higher than the original roof, as shown in fig. 5, roof dust and loose concrete are cleaned up firstly by using a high-pressure water gun, after the roof is dried, a layer of water-based interface agent is coated before pouring, if the damaged part of the original roof needs to be repaired, the water-based interface agent is coated again, during construction, the roof maintenance position is divided into a plurality of rectangular areas according to the extruded sheet filled in the expansion joint, namely, the roof is divided into a plurality of rectangular areas, ultra-high-performance concrete (UHPC) is poured in each bin area, and the UHPC (Ultra-High Performance Concrete) is Ultra-high-performance concrete, and has Ultra-high durability and Ultra-high mechanical property. The stirring machine is preferably a 380V high-power vertical stirrer, and a special roller is required to brush the surface layer before initial setting after pouring in order to ensure engineering quality, and the surface layer is covered with a film for maintenance in time.

Further, after the surface layer ultra-high performance concrete is hardened and dried, a water bar template is installed and manufactured on the side edge of the extruded sheet, after the template is installed, ultra-high performance concrete (UHPC) with the thickness of 30 x 25mm is secondarily poured on two sides of the extruded sheet to form water bars 61, as shown in fig. 4, a ventilation groove 6 is formed in a space between the two water bars 61 after the water bars 61 are dried, the extruded sheet in the ventilation groove 6 is cleared, the ventilation groove 6 and the gutter 2 side water seepage and exhaust bars 4 are connected into a whole through a connecting piece 42 installed previously, the U-shaped stainless steel waterproof cover plate 62 is covered on the water bars 61 to prevent rainwater from invading, the waterproof cover plate 62 is reversely buckled and adhered on the upper part of the water bars 61 through the structural adhesive 10, and a stainless steel pressing plate 7 is arranged at the end part of the waterproof cover plate 62 to prevent the rainwater from entering, as shown in fig. 3, the stainless steel pressing plate 7 is of an inverted L-shaped structure, and external rainwater can not invade into a heat insulation layer of a roof.

According to the utility model, the connecting piece 42 is used for connecting the expansion joint with the cut expansion joint, the two ends of the top of the expansion joint are respectively provided with the water retaining strips 61, the ventilation groove 6 is formed between the two water retaining strips 61, the tops of the two water retaining strips 61 are covered by the waterproof cover plate 62, the lower end of the connecting piece 42 is connected with the water seepage and exhaust strip 4, so that accumulated water in the expansion joint is collected into the water seepage and exhaust strip 4 through the connecting piece 42 and finally is discharged into the water falling opening 5 through the water seepage and exhaust strip branch 41, a perfect drainage and exhaust system is formed, the two sides of the ventilation groove 6 are communicated with the atmosphere, and the ventilation groove can be exhausted, so that a connection structure capable of draining water downwards and exhausting upwards is formed, and the problems of drainage and exhaust after construction are solved.

In the embodiment, the light mortar is used for trowelling the gutter 2, after the internal corner is made into a circular gear, a slope is found for 3% of the water falling opening 5, and in the process of waterproof construction of the gutter 2, a thermal bonding method is adopted for construction, and in order to ensure normal construction operation and the paving quality of the waterproof coiled material 9, the construction is preferably carried out at the temperature of +5 ℃ to +35 ℃. During construction of the waterproof layer, nodes, additional layers and parts where roof drainage is concentrated are firstly treated, such as the junction of a cornice, a deformation joint, a pipe root and the like with a roof, cornice, gutter 2, a gully and a roof ridge and the like, and then construction is carried out upwards from the lowest elevation of the roof. When paving gutter 2, eaves gutter waterproofing membrane 9, it is advisable to follow gutter 2, eaves mouth direction, reduces the overlap joint. The lapping seam of two adjacent waterproof coiled materials 9 is staggered, the lapping seam of the upper and lower waterproof coiled materials 9 is also staggered, the lapping seam parallel to the ridge overlaps along the running water direction, and the lapping seam is sealed by sealing materials compatible with the waterproof coiled materials 9. In order to reduce the joint of the internal and external corners and the large area, the waterproof coiled materials 9 are firstly configured along the longitudinal direction, and reinforcing measures are arranged at the corners. According to the position where the waterproof roll 9 is arranged, a standard line is ejected from the downhill slope of the running water gradient, so that the longitudinal direction of the waterproof roll 9 is perpendicular to the running water gradient. The waterproof coiled materials 9 are adhered to each other, the joint width of the waterproof coiled materials 9 is generally 100mm, the joints of the waterproof coiled materials 9 are tightly adhered, and then the waterproof coiled materials are carefully rolled by a tool in sequence. The end of the waterproof coiled material 9 is subjected to head collecting treatment, and in order to prevent peeling or water seepage at the end of the waterproof coiled material 9, the end head collecting is fixed by a stainless steel pressing plate 7 and a stainless steel cornice 8, and is sealed by adopting a structure.

The construction principle of the utility model is as follows:

the roof maintenance adopts the following modes:

firstly, removing a structure to be repaired of an original roof and exposing a roof heat preservation layer 1, wherein the structure to be repaired preferably comprises a waterproof layer, a leveling layer and part or all of roof expansion joints, and the structure to be repaired, which needs to be removed, is selected according to the condition of the original roof during concrete maintenance;

secondly, draining accumulated water in the original roof heat preservation layer 1 and airing until the accumulated water meets the requirements; when the structure to be repaired of the original roof is removed, the width of 40-60 mm is cut into the roof along the side of the gutter 2 until the width is cut to the position which is the same with the bottom surface of the roof heat preservation layer 1, so that the side surface of the roof heat preservation layer 1 is completely exposed, at the moment, water reserved in the roof heat preservation layer 1 can be discharged, and the roof heat preservation layer 1 is aired until the requirement is met, and no clear water flows out of the original roof heat preservation layer 1;

third,: before construction, firstly arranging drainage and exhaust components, embedding water seepage and exhaust strips 4 at the bottom of the side edges of the gutter 2, connecting the water seepage and exhaust strips to a water falling port 5 through water seepage and exhaust strip branches 41 connected with the water seepage and exhaust strips 4, and connecting the water seepage and exhaust strips 4 upwards through connecting pieces 42 with expansion joints; the water seepage and exhaust bar 4, the water seepage and exhaust bar branch 41 and the connecting piece 42 are all any parts of the pipe fittings cut along the axial direction or parallel to the axial direction, the pipe fittings can be round pipes, square pipes or multi-edge pipes, and the like, for example, the water seepage and exhaust bar 4, the water seepage and exhaust bar branch 41 and the connecting piece 42 are parts of the round pipes cut along the axis, namely the round pipesFor example, round tube->Also e.g. round tube->Etc.

Fourthly, after the drainage and exhaust components are arranged, pouring construction is carried out on the gutter 2, a round baffle construction slope finding treatment is adopted, then water-proof treatment is carried out on the gutter 2, light mortar is adopted to smooth the gutter 2 during construction, a round baffle is formed at an internal corner, and then slope finding is carried out on the water falling port 5 by 2-4%, wherein in the water-proof construction process of the gutter 2, a thermal bonding method is adopted for construction, a waterproof coiled material 9 is constructed from the lowest elevation position of a roof to a high position, a splicing method is adopted for paving the waterproof coiled materials 9, the splicing seams of two adjacent waterproof coiled materials 9 are staggered, the parallel splicing seams of the roof ridge are overlapped along the water flowing direction, and the splicing seams are sealed by sealing materials compatible with the waterproof coiled materials 9; the overlap joint width of the waterproof coiled material 9 is not less than 100mm, the joint of the waterproof coiled material 9 is tightly bonded and rolled, and the end of the waterproof coiled material 9 is fixed at the end receiving part through a stainless steel pressing plate 7 and/or a stainless steel cornice 8;

fifthly, taking the original expansion joint or the treated expansion joint as a dividing joint, arranging a dividing plate 11 in the dividing joint for dividing and supporting a die, cleaning a roof base layer after supporting the die, and brushing an interfacial agent;

sixthly, pouring concrete in each sub-bin area, rolling and brushing a layer of rolling brush and laminating and curing before initial setting;

seventh, respectively pouring water blocking strips 61 on two side support molds at the top of the expansion joint, and forming an expansion joint ventilation groove 6 between the two water blocking strips 61;

finally, a waterproof cover plate 62 is fixed at the top of the two water retaining strips 61, water retaining pressing plates are arranged at the two ends of the waterproof cover plate 62, and construction is completed, wherein the waterproof cover plate 62 is of a -shaped structure, the water retaining pressing plates are of an inverted L-shaped structure, the water retaining pressing plates adopt stainless steel pressing plates 7, and the edges of waterproof coiled materials 9 used by the gutter 2 are fixed through stainless steel cornices 8 and/or the stainless steel pressing plates 7.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.

The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the utility model. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.

Claims (10)

1. Waterproof construction suitable for roofing maintenance usefulness, its characterized in that, including arranging infiltration exhaust strip (4) in roofing heat preservation (1) bottom one side, infiltration exhaust strip branch road (41) that one side of (4) links to each other through with oneself are connected water outlet (5), and infiltration exhaust strip (4) upwards are arranged through connecting piece (42) ventilative groove (6) of roofing heat preservation (1) top, the top of ventilative groove (6) is provided with waterproof apron (62), water in roofing heat preservation (1) can pass through infiltration exhaust strip (4) flow into water outlet (5) through infiltration exhaust strip branch road (41), gas in roofing heat preservation (1) can be discharged through connecting piece (42) through ventilative groove (6).

2. The waterproof structure for roof maintenance according to claim 1, wherein the ventilation groove (6) is located between two water blocking strips (61) on two sides above the expansion joint, and the water blocking strips (61) are of a concrete structure.

3. The waterproof structure for roofing maintenance according to claim 2, characterized in that said waterproof cover plate (62) is adhesively fixed to the upper portion of said water bar (61).

4. The waterproof structure for roof maintenance according to claim 2, wherein the two ends of the water bar (61) are provided with water blocking pressing plates for preventing rainwater from entering the roof insulation layer (1) from the two sides of the ventilation groove (6).

5. The waterproof structure suitable for roofing maintenance according to claim 4, characterized in that said waterproof cover plate (62) has a -shaped structure, said water-retaining pressure plate has an inverted-L-shaped structure;

the waterproof cover plate (62) and the water retaining pressure plate are made of stainless steel.

6. The waterproof structure for roof maintenance according to claim 1, wherein the water seepage and exhaust bar (4), the water seepage and exhaust bar branch (41) and the connecting piece (42) are all parts of a pipe cut along the axial direction or parallel to the axial direction.

7. The waterproof structure for roof maintenance according to claim 1, wherein the side surfaces of the water seepage and exhaust bars (4) are respectively provided with openings, and the water seepage and exhaust bar branches (41) and the connecting pieces (42) are respectively inserted into the openings.

8. The waterproof structure for roof maintenance according to claim 1, wherein a stainless steel cornice (8) and/or a stainless steel pressing plate (7) are arranged above the edge of the waterproof coiled material (9) adhered on the roof gutter (2), the adjacent waterproof coiled materials (9) are arranged in a lap joint mode, and the lap joint width is not smaller than 100mm.

9. The waterproof structure suitable for roof maintenance according to claim 8, wherein the gutter (2) is a structure which adopts light mortar trowelling, and the internal corner is in a circular shape.

10. The waterproof structure for roof maintenance according to claim 8, characterized in that the gutter (2) is inclined in the direction of the water outlet (5) by 2-4%.