CN115405051A

CN115405051A - Roof waterproof structure and construction method thereof

Info

Publication number: CN115405051A
Application number: CN202211152570.3A
Authority: CN
Inventors: 曾德仙; 杨浩; 罗菲菲; 陈敬华
Original assignee: Fujian Qingyu Engineering Management Co ltd
Current assignee: Fujian Qingyu Engineering Management Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2022-11-29
Anticipated expiration: 2042-09-21
Also published as: CN115405051B

Abstract

The application relates to a roof waterproof structure and a construction method thereof, which sequentially comprises a base layer, a leveling layer, a heat preservation layer, a flow guide layer and a rigid waterproof layer from bottom to top, wherein the top surface of the flow guide layer is obliquely arranged from the middle part to two sides, the edge of the lowest part of the top surface of the flow guide layer is provided with a groove, and the groove and the flow guide layer are arranged in equal length; the top surface of the flow guide layer is provided with a plurality of guide grooves which are arranged at equal intervals along the length direction of the groove, one end of each guide groove is positioned in the middle of the top surface of the flow guide layer, and the other end of each guide groove is communicated to the groove; a plurality of absorbent cotton slivers arranged along the length direction of the groove at equal intervals are placed in the groove, the absorbent cotton slivers are arranged in one-to-one correspondence with the lower notches of the guide groove, and the absorbent cotton slivers are connected in series through a first connecting rope. The leakage area can be accurately determined, so that leakage can be conveniently repaired.

Description

Roof waterproof structure and construction method thereof

Technical Field

The application relates to the field of waterproof roofs, in particular to a roof waterproof structure and a construction method thereof.

Background

In order to reduce water leakage of the roof, a waterproof structure is often constructed during roof construction.

Conventional roofing waterproof construction includes usually from the supreme basic unit, heat preservation, screed-coat, the waterproof layer that sets gradually down, uses through the cooperation of waterproof layer and heat preservation and reaches heat preservation waterproof effect.

When the waterproof layer has local leakage, the leakage water flows among all layers and possibly leaks into the house through the base layer; the local leakage position of the waterproof layer is difficult to search, but if the whole waterproof layer is replaced, time and labor are wasted.

Disclosure of Invention

In order to accurately determine a leakage area so as to facilitate leakage repair, the application provides a roof waterproof structure and a construction method thereof.

The application provides a roof waterproof structure adopts following technical scheme:

a roof waterproof structure sequentially comprises a base layer, a leveling layer, a heat preservation layer, a flow guide layer and a rigid waterproof layer from bottom to top, wherein the top surface of the flow guide layer is obliquely arranged from the middle part to two sides; the top surface of the flow guide layer is provided with a plurality of guide grooves which are arranged at equal intervals along the length direction of the groove, one end of each guide groove is positioned in the middle of the top surface of the flow guide layer, and the other end of each guide groove is communicated to the groove; a plurality of absorbent cotton slivers arranged in the groove at equal intervals along the length direction of the groove are placed in the groove, the absorbent cotton slivers and the lower notches of the guide groove are arranged in a one-to-one correspondence mode, and the absorbent cotton slivers are connected in series through first connecting ropes.

By adopting the technical scheme, when rainwater leaks to the flow guide layer from the damaged part of the rigid waterproof layer, the rainwater flows downwards along the inclined direction of the guide groove at the corresponding position and flows to the corresponding absorbent cotton sliver to be absorbed by the absorbent cotton sliver, therefore, when the leakage part is detected, the local position of the rigid waterproof layer at one end of the groove can be firstly broken, then all the absorbent cotton slivers are extracted by utilizing the first connecting rope through the broken opening, then the water absorption condition of the absorbent cotton sliver is checked to judge the guide groove at the corresponding position, at the moment, the part of the rigid waterproof layer corresponding to the guide groove is the damaged leakage area, namely, the damaged leakage area is accurately found out, and then the damaged leakage area is repaired again by utilizing a new rigid waterproof material, so that the rainwater flow guide device is convenient and quick.

Optionally, the first connecting rope includes a plurality of support rods, and the head and tail ends of each support rod are hinged to each other; the water absorption cotton strip is arranged on the support rod.

Through adopting above-mentioned technical scheme for first connecting rope has the bendability, so that enter into the recess of rectangular shape from the broken opening of rigidity waterproof layer in, secondly, also make first connecting rope have certain linear rigidity, when promoting first connecting rope and get into the recess, its straightness accuracy keeps better, can ensure the position degree of accuracy of absorbent cotton sliver.

Optionally, a guide ball is arranged on the support rod between two adjacent absorbent cotton slivers, the groove surface of the groove is an arc surface, and the outer diameter of the guide ball is equal to the curvature radius of the groove surface of the groove.

Through adopting above-mentioned technical scheme, through setting up the guide ball for branch and recess are in coaxial state, and consequently the position degree of accuracy of absorbent cotton sliver is higher, and, when pushing in first connecting rope from recess one end, the guide ball plays the guide effect, can be convenient for push and improve the position accuracy.

Optionally, the water absorption cotton sliver is of a cylindrical structure and is rotatably sleeved on the support rod through the rotating sleeve; the outer peripheral surface of the absorbent cotton sliver is tangent to the lower notch of the guide groove, and a movable gap is formed between the outer peripheral surface of the absorbent cotton sliver and the groove surface of the groove.

Through adopting above-mentioned technical scheme, make the absorbent cotton sliver have rotatablely, consequently when the percolating water flows to the absorbent cotton sliver from the guiding groove on, the local absorption of absorbent cotton sliver, this local quality increases and non-minimum, consequently, the rotation will take place for the absorbent cotton sliver, make the great position of the local quality of absorbent cotton sliver rotate to the minimum, and another partial position that does not absorb water then moves to the lower notch department of guiding groove with the trend, in order to continue to absorb the rainwater, therefore, make the absorbent cotton sliver can evenly absorb the rainwater, the plumpness is better, change discernment seepage position and seepage water yield size.

Optionally, a plurality of cotton balls that absorb water that the guiding groove length direction equidistance set up of arranging are placed to in the guiding groove, and each cotton ball that absorbs water concatenates through the second connection rope, just the outer peripheral face of cotton ball that absorbs water with the bottom surface of rigid waterproof layer is tangent.

Through adopting above-mentioned technical scheme, when judging that the position of a corresponding guide way of rigid waterproof layer takes place damaged seepage, can only break the position of this guide way one end of correspondence of rigid waterproof layer (need not to break the whole guide way of correspondence of rigid waterproof layer), then through this by the breach, utilize the second to connect the rope, with the cotton ball that absorbs water of drawing out all, then look over the condition of absorbing water of cotton ball that absorbs water, with the seepage condition of the corresponding position of judging this guide way, concrete position on this guide way promptly, then according to this concrete position, with the position of this specific position of correspondence of accurate restoration rigid waterproof layer, thereby more accurate and save the cost more.

Optionally, the guiding groove is a V-shaped groove, and a water gap is formed between the bottom of the pointed groove of the guiding groove and the outer peripheral surface of the absorbent cotton ball.

Through adopting above-mentioned technical scheme, through the concrete shape of guiding groove to form and lead to the water clearance, so that realize that part rainwater is absorbed by the absorbent cotton sliver, and part rainwater can continue to flow along the guiding groove and absorbed by the absorbent cotton sliver in the recess, reasonable seepage rainwater promptly, so that to the judgement of the seepage condition of two position dimensions.

Optionally, the second connecting rope is a rubber air bag column, and the water-absorbing cotton ball is mounted on the rubber air bag column; when the rubber air bag column expands, the length direction of the rubber air bag column is arranged along the length direction of the guide groove, and the peripheral surface of the water-absorbing cotton ball is tangent to the bottom surface of the rigid waterproof layer and the groove surface of the guide groove respectively.

Through adopting above-mentioned technical scheme, when pushing the rubber air bag post in the guiding groove through rigid waterproof layer's broken opening, the rubber air bag post is in the uninflated state or fills a small amount of gas state, it is softer, it gets into in the guiding groove more, when treating that the rubber air bag post gets into in the guiding groove completely, be full of the gas with the rubber air bag post, at this moment, the outer peripheral face of cotton ball that absorbs water is tangent with rigid waterproof layer's bottom surface and the groove face of guiding groove respectively, it is spacing to utilize frictional force to absorb water the cotton ball, in order to ensure the position stability of cotton ball that absorbs water, so that subsequent judgement of seepage position.

The one-way air valve is arranged to ensure that the air cannot overflow out through the air suction nozzle when the rubber air bag column is inflated so as to ensure the inflation completion degree.

Optionally, the surface of the rubber air bag column is provided with a plurality of air suction nozzles which are equidistantly arranged along the length direction of the rubber air bag column, the air suction nozzles are located between two adjacent water-absorbing cotton balls, the air suction nozzles are attached to the bottom surface of the rigid waterproof layer, and a one-way air valve which only allows external fluid to enter the inner cavity of the rubber air bag column is arranged in each air suction nozzle.

Through adopting above-mentioned technical scheme, after judging department leakage position and restoration, the broken opening (suitable sealing treatment) that is used for supplying that water absorption cotton ball and rubber air bag post of temporary retention rigid waterproof layer got into, then carry out the shower water toward rigid waterproof layer's restoration position, carry out the seepage experiment promptly, at this moment, utilize negative pressure equipment, with the air in the extraction rubber air bag post, and through the suction nozzle, with the negative pressure state of realization rigid waterproof layer's bottom surface, if there is the restoration incomplete condition still at the restoration position, this negative pressure will accelerate the seepage of shower water, with judge the restoration condition fast, so that ensure stopping as far as possible of the seepage condition.

Optionally, the second connecting rope comprises an air bag film column, a rubber belt is spirally wound and bonded on the outer surface of the air bag film column, and a spiral gap of the rubber belt is a deformation gap; the surface of the rubber belt is provided with a plurality of air suction nozzles which are equidistantly arranged along the length direction of the air bag membrane column, the air suction nozzles are positioned between two adjacent water suction cotton balls and are attached to the bottom surface of the rigid waterproof layer, and a one-way air valve which only allows external fluid to enter the inner cavity of the air bag membrane column is arranged in each air suction nozzle.

By adopting the technical scheme, the second connecting rope is easier to bend so as to be pushed into the guide groove from one end of the guide groove; and when the second connecting rope completely enters the guide groove and is inflated, the air bag film column expands to drive the rubber belt to move along the spiral axis Shu Zhangkai of the rubber belt, so that the water-absorbing cotton ball on the rubber belt is driven to generate circumferential and axial composite displacement, and in the displacement process, the peripheral surface of the water-absorbing cotton ball is respectively tangent to the bottom surface of the rigid waterproof layer and/or the groove surface of the guide groove, namely, the bottom surface of the rigid waterproof layer and/or the groove surface of the guide groove are used for carrying out position calibration, so that the position accuracy of the water-absorbing cotton ball is ensured to be improved.

The application further provides a construction method of the roof waterproof structure, which adopts the following technical scheme:

a construction method of a roof waterproof structure comprises the following steps:

s1, sequentially paving a leveling layer, a heat-insulating layer and a flow guide layer on a base layer;

s2, cleaning a guide groove and a groove on the guide layer;

s3, placing the absorbent cotton slivers in the grooves, enabling the absorbent cotton slivers and the guide grooves to be arranged in a one-to-one correspondence mode, and ensuring that the peripheral surfaces of the absorbent cotton slivers are attached to the lower notches of the guide grooves;

and S4, paving a rigid waterproof layer.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the damaged leakage area is accurately found out through the arrangement of the flow guide layer and the water absorption cotton strip, and the breaking cost of the rigid waterproof layer can be greatly reduced through the first connecting rope, so that the later repair is facilitated;

2. the specific position on the guide groove can be specifically judged by arranging the water-absorbing cotton ball, and then the part of the rigid waterproof layer corresponding to the specific position is accurately repaired according to the specific position, so that the method is more accurate and saves the cost;

3. through setting up the suction nozzle, can cooperate the leakage experiment of restoreing the back position to judge the restoration condition fast, so that ensure the stopping as far as possible of leakage condition.

Drawings

Fig. 1 is a schematic view of the entire structure of embodiment 1.

Fig. 2 is a schematic diagram for embodying the structure of the current guiding layer of example 1.

Fig. 3 is a sectional view for embodying the connection relationship of the absorbent tampon and the first connecting string according to example 1.

Fig. 4 is a partially enlarged view of a point a in fig. 2.

FIG. 5 is a schematic view showing the tangential relationship of the absorbent tampon of example 1.

Fig. 6 is a schematic structural view of a second connecting cord of embodiment 2.

FIG. 7 is a sectional view of a vacuum nozzle in accordance with embodiment 2.

Fig. 8 is a schematic structural view of a second connecting cord of embodiment 3.

Description of reference numerals: 2. a water-absorbing cotton sliver; 3. a first connecting rope; 4. a water-absorbing cotton ball; 5. a second connecting rope; 6. a one-way air valve; 7. a suction nozzle; 11. a base layer; 12. leveling layer; 13. a waterproof roll layer; 14. a heat-insulating layer; 15. a flow guiding layer; 151. a groove; 152. a guide groove; 153. a water gap is formed; 16. a rigid waterproof layer; 21. a guide ball; 22. rotating the sleeve; 31. a strut; 51. an air bag membrane column; 52. a rubber belt; 61. a fixing ring; 62. a valve plate; 63. a spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

Embodiment 1 discloses a roofing waterproof structure.

Referring to fig. 1, the roof waterproof structure sequentially comprises a base layer 11, a leveling layer 12, a waterproof coiled material layer 13, a heat insulation layer 14, a flow guide layer 15 and a rigid waterproof layer 16 from bottom to top, wherein the flow guide layer 15 can be made of waterproof coiled materials, and the rigid waterproof layer 16 can be laid by organic silicon modified polymer cement mortar or laid after being prefabricated and formed.

In order to enhance the appearance and protection effect, tiles may be laid on the top surface of the rigid waterproof layer 16, and the tiles are densely arranged to form a multi-grid shape.

As shown in fig. 2, the top surface of the flow guiding layer 15 is inclined from the middle to both sides, and two edges of the bottom surface of the flow guiding layer 15 are provided with grooves 151, that is, the two grooves 151 are symmetrically arranged at the middle of the flow guiding layer 15, and the grooves 151 and the flow guiding layer 15 are arranged at the same length, and the groove surface of the groove 151 is a semi-circular arc surface; the top surface of water conservancy diversion layer 15 has been seted up multichannel guide groove 152, and guide groove 152 is the V-arrangement groove, and each guide groove 152 is arranged along recess 151 length direction equidistance and sets up, and the length direction of guide groove 152 is the incline direction of water conservancy diversion layer 15, and the one end of guide groove 152 is located the top surface middle part of water conservancy diversion layer 15, and the other end of guide groove 152 communicates to recess 151.

As shown in fig. 2 and 3, a plurality of absorbent tampons 2 are placed in the groove 151, the absorbent tampons 2 are arranged at equal intervals along the length direction of the groove 151, the absorbent tampons 2 are cylindrical structures, and the absorbent tampons 2 are arranged in one-to-one correspondence with the lower notches of the guide groove 152; each absorbent cotton sliver 2 is connected in series through a first connecting rope 3, the first connecting rope 3 can be a nylon rope or a steel wire rope or other rope-shaped structures with bendability, in the embodiment, the first connecting rope 3 comprises a plurality of support rods 31, the head and the tail of each support rod 31 are connected in a hinged manner, so that the first connecting rope 3 is of a multi-section bendable structure, a hole is formed in the axis of the absorbent cotton sliver 2, a rotating sleeve 22 is fixed in the hole, the rotating sleeve 22 is arranged on the support rods 31, so that the absorbent cotton sliver 2 can rotate relative to the support rods 31, at the moment, the outer peripheral surface of the absorbent cotton sliver 2 is tangent to the lower notch of the guide groove 152, and a movable gap is formed between the outer peripheral surface of the absorbent cotton sliver 2 and the groove surface of the groove 151, so as to reduce the rotational friction of the absorbent cotton sliver 2.

The guide ball 21 is arranged on the rod 31 between two adjacent tampons 2, and the outer diameter of the guide ball 21 is equal to the curvature radius of the groove surface of the groove 151.

As shown in fig. 4 and 5, a plurality of absorbent cotton balls 4 are placed in the guide groove 152, the absorbent cotton balls 4 are equidistantly arranged along the length direction of the guide groove 152, the absorbent cotton balls 4 are connected in series by the second connecting rope 5, the second connecting rope 5 can be a nylon rope or a steel wire rope or other rope-like structure with flexibility, in this embodiment, the second connecting rope 5 is a rubber air bag column, the absorbent cotton balls 4 are mounted on the rubber air bag column at intervals, when the rubber air bag column inflates and expands, the outer circumferential surface of the absorbent cotton balls 4 is respectively tangent to the bottom surface of the rigid waterproof layer 16 and the groove surface of the guide groove 152, so that the absorbent cotton balls 4 can be limited in position by friction force, and then a water gap 153 is formed between the tip of the groove bottom of the guide groove 152 and the outer circumferential surface of the absorbent cotton balls 4, so that rainwater leaking from the damaged portion of the rigid waterproof layer 16 can obliquely flow into the groove 151 through the water gap 153.

Embodiment 1 also discloses a construction method of the roof waterproof structure, which comprises the following steps:

s1, sequentially paving a leveling layer 12, a waterproof coil layer 13, a heat-insulating layer 14 and a flow guide layer 15 on a base layer 11.

S2, cleaning the guide groove 152 and the groove 151 on the flow guide layer 15 by using a high-pressure water gun in cooperation with a cleaning agent, and coating a hydrophobic agent on the groove surfaces of the guide groove 152 and the groove 151 after drying.

S3, the combination of the absorbent cotton sliver 2 and the first connecting rope 3 is placed in the groove 151, so that the absorbent cotton sliver 2 and the guide groove 152 are arranged in a one-to-one correspondence mode, the outer peripheral surface of the absorbent cotton sliver 2 is attached to the lower notch of the guide groove 152, the shape of the absorbent cotton sliver 2 is corrected, and the situation that the absorbent cotton sliver 2 is directly attached to the groove surface of the groove 151 due to deformation is reduced.

The combination of the absorbent cotton ball 4 and the second connecting string 5 is placed in the guide groove 152, and the rubber airbag column is inflated and maintained in an inflated state by the inflator.

And S4, paving a rigid waterproof layer 16.

The implementation principle of the embodiment 1 is as follows: when the rigid waterproof layer 16 is damaged and rainwater leaks from the damaged position of the rigid waterproof layer 16 to the flow guide layer 15, the rainwater is absorbed by the water-absorbing cotton ball 4 corresponding to the position in the guide groove 152 below the damaged position of the rigid waterproof layer 16, and the other part of the rainwater flows obliquely downwards along the guide groove 152 through the water gap 153 to flow to the corresponding water-absorbing cotton sliver 2 and is absorbed by the water-absorbing cotton sliver 2

Therefore, when detecting a leakage, the local position of the rigid waterproof layer 16 at one end of the groove 151 may be broken first, and then all the tampons 2 are drawn out through the broken opening by using the first connecting rope 3, and then the water absorption condition of the tampons 2 is checked to determine the guiding groove 152 (through which rainwater flows) at the corresponding position, which is the first dimension.

Then, the judgment of the second dimension is carried out, namely, the part of the rigid waterproof layer 16 corresponding to one end of the guide groove 152 is broken (the whole corresponding guide groove 152 of the rigid waterproof layer 16 does not need to be broken), then, through the broken opening, the second connecting rope 5 is utilized to draw out all the water-absorbing cotton balls 4, then, the water-absorbing condition of the water-absorbing cotton balls 4 is checked, the leakage condition of the corresponding position of the guide groove 152 is judged, namely, the specific position on the guide groove 152 is specifically found, then, the part of the rigid waterproof layer 16 corresponding to the specific position is accurately repaired according to the specific position, and then, the damaged leakage area is repaired again by utilizing a new rigid waterproof material, so that the method is convenient and fast.

After the damaged seepage zone of rigid waterproof layer 16 is repaired, accessible second breaks the opening (is located the one end of guiding groove 152), when breaking the opening and pushing into guiding groove 152 with the rubber gasbag post through the second, the rubber gasbag post is in the state of not aerifing or the state of inflating a little this moment, it is softer, it is changeing in the guiding groove 152, when the rubber gasbag post gets into guiding groove 152 completely, it is full of gas with the rubber gasbag post, at this moment, the outer peripheral face of cotton ball 4 that absorbs water is tangent with the bottom surface of rigid waterproof layer 16 and the groove face of guiding groove 152 respectively, to utilize frictional force to carry out spacingly to cotton ball 4 that absorbs water, in order to ensure the position stability of cotton ball 4 that absorbs water.

Then, the first connecting rope 3 is pushed into the groove 151 through the first opening (located at one end of the groove 151), and the first connecting rope 3 is quickly and accurately placed under the guiding action of the guiding ball 21.

And finally repairing the first broken opening and the second broken opening.

The arrangement can quickly and accurately find the damaged and leaked part on the rigid waterproof layer 16, and the cost is low.

In embodiment 2, as shown in fig. 6, an arrangement is made in addition to embodiment 1, in which a plurality of suction nozzles 7 are provided in communication with the rubber air bag column, the suction nozzles 7 are arranged at equal intervals along the longitudinal direction of the rubber air bag column, and the suction nozzles 7 are attached to the bottom surface of the rigid waterproof layer 16.

As shown in fig. 7, a one-way air valve 6 that only allows external fluid to enter the inner cavity of the rubber air bag column is disposed in the air suction nozzle 7, the one-way air valve 6 is used to ensure that when the rubber air bag column is inflated, the air in the rubber air bag column does not overflow through the air suction nozzle 7, the one-way air valve 6 may adopt a conventional one-way valve structure, in this embodiment, the one-way air valve 6 includes two fixing rings 61 fixed on the inner wall of the air suction nozzle 7, a spring 63 and a valve plate 62 are disposed between the two fixing rings 61, one end of the spring 63 abuts against one of the fixing rings 61, the other end of the spring 63 is disposed along the inner cavity far away from the rubber air bag column, and the end abuts against and seals the valve plate 62 against and blocks the other fixing ring 61.

Therefore, after the damaged leakage position of the rigid waterproof layer 16 is found and repaired, the broken opening (which can be properly sealed) of the rigid waterproof layer 16 for the water absorption cotton ball 4 and the rubber air bag column to enter is temporarily reserved, a new water absorption cotton ball 4 and a new rubber air bag column are installed, then water is sprayed to the repaired part of the rigid waterproof layer 16 to perform a leakage experiment, at the moment, air in the rubber air bag column is extracted by using a negative pressure device and the negative pressure state of the bottom surface of the rigid waterproof layer 16 is realized through the air suction nozzle 7, if the repaired part still has the condition of incomplete repair, the negative pressure accelerates the leakage of the sprayed water, so that the repair condition can be judged quickly, and the leakage condition is ensured to be stopped as far as possible.

Embodiment 3 is different from embodiment 2 in that, as shown in fig. 8, the second connecting string 5 includes an airbag film column 51 and a rubber tape 52, wherein the airbag film column 51 is a columnar structure made of a plastic film, the rubber tape 52 is spirally wound on the outer surface of the airbag film column 51 and fixedly connected by adhesion, and a spiral gap of the rubber tape 52 is a deformation gap; the absorbent cotton ball 4 is fixed on the rubber belt 52 (not shown in the figure), the suction nozzle 7 is arranged on the rubber belt 52, and the suction nozzle 7 is communicated with the inside of the air bag membrane column 51 (not shown in the figure).

When the second connecting rope 5 completely enters the guide groove 152, the air bag film column 51 is in a crumple state and then is inflated, the air bag film column 51 expands to drive the rubber belt 52 to move along the spiral axis Shu Zhangkai of the air bag film column, so that the water-absorbing cotton ball 4 on the air bag column is driven to perform circumferential and axial composite displacement, and in the displacement process, the peripheral surface of the water-absorbing cotton ball 4 is respectively tangent to the bottom surface of the rigid waterproof layer 16 and/or the groove surface of the guide groove 152, namely, the bottom surface of the rigid waterproof layer 16 and/or the groove surface of the guide groove 152 are used for performing position calibration, so that the position accuracy of the water-absorbing cotton ball 4 is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A roof waterproof structure which is characterized in that: the heat-insulation and water-transfer floor sequentially comprises a base layer (11), a leveling layer (12), a heat-insulation layer (14), a flow guide layer (15) and a rigid waterproof layer (16) from bottom to top, wherein the top surface of the flow guide layer (15) is obliquely arranged from the middle to two sides, a groove (151) is formed in the edge of the lowest position of the top surface of the flow guide layer (15), and the groove (151) and the flow guide layer (15) are arranged in equal length; the top surface of the flow guide layer (15) is provided with a plurality of guide grooves (152) which are arranged at equal intervals along the length direction of the groove (151), one end of each guide groove (152) is positioned in the middle of the top surface of the flow guide layer (15), and the other end of each guide groove (152) is communicated to the groove (151); a plurality of absorbent cotton slivers (2) arranged along the length direction of the groove (151) at equal intervals are placed in the groove (151), the absorbent cotton slivers (2) and the lower notches of the guide grooves (152) are arranged in a one-to-one correspondence mode, and the absorbent cotton slivers (2) are connected in series through first connecting ropes (3).

2. The water resistant roofing structure of claim 1 wherein: the first connecting rope (3) comprises a plurality of supporting rods (31), and the head end and the tail end of each supporting rod (31) are hinged with each other; the absorbent cotton strip (2) is arranged on the support rod (31).

3. The water resistant roofing structure of claim 2 wherein: and a guide ball (21) is arranged on the support rod (31) between two adjacent absorbent cotton slivers (2), the groove surface of the groove (151) is an arc surface, and the outer diameter of the guide ball (21) is equal to the curvature radius of the groove surface of the groove (151).

4. A water resistant roofing structure according to claim 3 wherein: the water absorption cotton sliver (2) is of a cylindrical structure, and the water absorption cotton sliver (2) is arranged on the support rod (31) through the rotating sleeve (22) and the rotating sleeve (22); the outer peripheral surface of the absorbent cotton sliver (2) is tangent to the lower notch of the guide groove (152), and a movable gap is formed between the outer peripheral surface of the absorbent cotton sliver (2) and the groove surface of the groove (151).

5. The water resistant roofing structure of claim 1 wherein: a plurality of absorbent cotton balls (4) arranged in the guide groove (152) at equal intervals along the length direction of the guide groove (152) are connected in series through a second connecting rope (5), and the peripheral surface of each absorbent cotton ball (4) is tangent to the bottom surface of the rigid waterproof layer (16).

6. The water resistant roofing structure of claim 5 wherein: the guiding groove (152) is a V-shaped groove, and a water gap (153) is formed between the bottom of the tip groove of the guiding groove (152) and the outer peripheral surface of the water absorption cotton ball (4).

7. A roof flashing structure as claimed in claim 5 or 6, wherein: the second connecting rope (5) is a rubber air bag column, and the water absorption cotton ball (4) is arranged on the rubber air bag column; when the rubber air bag column expands, the length direction of the rubber air bag column is arranged along the length direction of the guide groove (152), and the peripheral surface of the water absorption cotton ball (4) is tangent to the bottom surface of the rigid waterproof layer (16) and the groove surface of the guide groove (152) respectively.

8. The water resistant roofing structure of claim 7 wherein: the surface of the rubber air bag column is provided with a plurality of air suction nozzles (7) which are equidistantly arranged along the length direction of the rubber air bag column, the air suction nozzles (7) are positioned between two adjacent water-absorbing cotton balls (4), the air suction nozzles (7) are attached to the bottom surface of the rigid waterproof layer (16), and one-way air valves (6) which only allow external fluid to enter the inner cavity of the rubber air bag column are arranged in the air suction nozzles (7).

9. A roof flashing structure as claimed in claim 5 or 6, wherein: the second connecting rope (5) comprises an air bag film column (51), a rubber belt (52) is spirally wound and bonded on the outer surface of the air bag film column (51), and the spiral gap of the rubber belt (52) is a deformation gap; the surface of the rubber belt (52) is provided with a plurality of air suction nozzles (7) which are equidistantly arranged along the length direction of the air bag membrane column (51), the air suction nozzles (7) are positioned between two adjacent water suction cotton balls (4), the air suction nozzles (7) are attached to the bottom surface of the rigid waterproof layer (16), and one-way air valves (6) which only allow external fluid to enter the inner cavity of the air bag membrane column (51) are arranged in the air suction nozzles (7).

10. A construction method of a roof waterproof structure according to claim 1, characterized in that: the method comprises the following steps:

s1, sequentially paving a leveling layer (12), a heat preservation layer (14) and a flow guide layer (15) on a base layer (11);

s2, cleaning a guide groove (152) and a groove (151) on the flow guide layer (15);

s3, placing the absorbent cotton slivers (2) in the grooves (151) to enable the absorbent cotton slivers (2) and the guide grooves (152) to be arranged in a one-to-one correspondence mode, and ensuring that the peripheral surfaces of the absorbent cotton slivers (2) are attached to the lower notches of the guide grooves (152);

and S4, paving a rigid waterproof layer (16).