WO2022041677A1

WO2022041677A1 - Flat roof water drainage method

Info

Publication number: WO2022041677A1
Application number: PCT/CN2021/079484
Authority: WO
Inventors: 王�忠
Original assignee: 海南红杉科创实业有限公司
Priority date: 2020-08-27
Filing date: 2021-03-08
Publication date: 2022-03-03
Also published as: CN111851877A

Abstract

A flat roof water drainage method comprising: step S1, providing, in a water accumulation region of a roof, at least one recess communicating with a water drainage port; step S2, providing, in the recess, a drainage member for draining accumulated water; and step S3, adjusting a water drainage slope of the drainage member. If this method is applied to a new roof system, then a slope making layer of the new roof system can be eliminated, and smooth water drainage can be achieved by means of providing a drainage member and adjusting a water drainage slope of the drainage member. In addition, eliminating the slope making layer greatly reduces construction costs of a roofing project. If this method is applied to an existing roof system, then the issue in which water drainage of a roof region having accumulated water is not smooth can be resolved, maintenance difficulty and maintenance costs of the roof system can be greatly reduced, and the risk of roof leakage can be reduced. If this method is applied to an exposed waterproof and heat insulation integrated lightweight roof system, then the service life of the lightweight roof system can be extended, and maintenance costs can be reduced.

Description

A method of draining a flat roof

This application claims the priority of the Chinese patent application filed on August 27, 2020 with the application number 202010878605.6 and the invention titled "A method for draining a flat roof", the entire contents of which are incorporated into this application by reference .

technical field

The invention relates to the technical field of flat roof waterproofing, and more particularly, to a method for flat roof drainage.

Background technique

At present, the leakage of building roof is serious, and how to ensure smooth drainage is the key link of roof waterproof management. Please refer to Figure 1, the slope finding layer 01 of a flat roof refers to building a certain gentle slope according to the designed drainage direction and collecting it into the roof drainage ditch. , in order to organize the roof rainwater to the rainwater drainage system of buildings and cities.

According to the requirements of the building code, the slope of the slope layer 01 of the roof building is 1.5~5°, and the thickness of the thinnest part of the slope layer 01 is 50mm. Fine stone concrete of not less than C20, or cement mortar of strength grade not less than M15. Slope layer 01 is usually set with lightweight building materials such as ceramsite and foamed concrete blocks to reduce the roof load; however, lightweight building materials have strong hydrophilicity. Once the waterproof layer of the roof is damaged, the whole If you find the slope layer 01, it will be full of water, forming the aquifer of the roof, resulting in continuous leakage of the roof. In addition, the average thickness of the sloping layer is 60mm-120mm, the roof load is large, and the project cost is high. Therefore, canceling the slope search can not only save the project cost, but also reduce the hidden danger of roof leakage.

In the existing building roof maintenance projects, due to the accumulation of water in the local area of the roof, the process of resetting the slope finding layer, and then setting the leveling layer, waterproof layer and protective layer respectively, not only increases the load of the roof mechanism, but also increases the safety of the building structure. Bring hidden dangers, but also greatly increase the project cost.

In the exposed roof waterproof and thermal insulation integrated light roof system using waterproof paint and thermal insulation paint as the main materials, the roof drain is the first damaged part. Due to the dust and dirt deposited in the drain, dust and After the dirt is dried, it will harden and crack, causing the thermal insulation coating to delaminate. After the thermal insulation coating is damaged, the waterproof coating will be easily aged, thus affecting the service life of the exposed roof waterproof and thermal insulation integrated system.

In summary, how to provide a flat roof drainage method that can effectively reduce the risk of roof leakage, reduce roof maintenance costs and prolong the service life of the roof is an urgent problem to be solved by those skilled in the art.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to provide a method for draining a flat roof, which can effectively solve the problem of poor drainage of the roof system, reduce the maintenance cost of the roof and prolong the service life of the roof.

In order to achieve the above object, the present invention provides the following technical solutions:

A method of draining a flat roof, comprising:

Step S1, set at least one groove connected with the drainage outlet in the water accumulation area of the roof;

Step S2, providing a conducting member for dredging water in the groove;

Step S3, adjusting the drainage gradient of the conducting member.

Preferably, the number of the grooves is greater than or equal to one, each of the grooves can be connected in a grid, and the converging water outlet of each of the grooves is communicated with the water outlet.

Preferably, the conducting member is a U-shaped grooved pipe or a split PVC pipe matching the size of the groove, and the port of the conducting member is flush with the horizontal plane of the roof.

Preferably, the U-shaped grooved pipe is a metal piece, a plastic piece or a ceramic piece, and the PVC pipe is a conventional construction PVC drainage pipe.

Preferably, the bottom of the arc groove of the PVC pipe and the bottom of the U-shaped groove of the U-shaped groove pipe are both higher than the water outlet of the roof.

Preferably, the adjusting the drainage gradient of the conducting member includes adjusting the drainage gradient of the conducting member using a mortar lifting and paving process.

Preferably, the mortar used in the mortar lifting and laying process is cement mortar or waterproof mortar.

Compared with the prior art, if the method for drainage of a flat roof provided by the present invention is applied to a new roof system, the slope finding layer of the new roof system can be directly cancelled, and the plastering and leveling layer of the roof can be set at the height position. The conducting parts can also be prefabricated grooves in the cast-in-place concrete floor of the roof, and the drainage can be smoothed by adjusting the drainage slope of the conducting parts, thereby effectively prolonging the service life of the roof, and the cancellation of the slope layer can greatly reduce the roof engineering. construction cost.

If this method is used to solve the problem of poor drainage of the existing roof system, there is no need to re-set the roof sloping layer, set a groove connected with the drainage outlet in the water area of the roof, and then set a conducting piece in the groove , and adjust the drainage slope of the conducting member according to the actual drainage demand, which can effectively solve the problem of poor drainage of the existing roof system, effectively prolong the service life of the roof, and effectively reduce the difficulty and cost of roof maintenance.

If this method is applied to the exposed light roof system with integrated waterproof and heat insulation, the dust and dirt on the surface of the light roof system will be collected with the rainwater in the U-shaped groove pipe or the split PVC pipe set in the groove, which is easy to clean and No leaks, extending the life of lightweight roofing systems and reducing maintenance costs.

To sum up, by using the flat roof drainage method provided by the present invention, the problem of poor drainage of the roof system can be effectively solved, the maintenance cost of the roof can be reduced, and the service life of the roof can be prolonged.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative work.

Fig. 1 is the traditional roofing system structure schematic diagram in the prior art;

FIG. 2 is a schematic flowchart of a method for draining a flat roof provided by the present invention.

In Figure 1-Figure 2:

01 is the sloping layer, and 02 is the plastering and leveling layer.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The core of the invention is to provide a method for draining a flat roof, which can effectively solve the problem of poor drainage of the roof system, reduce the maintenance cost of the roof and prolong the service life of the roof.

Please refer to FIG. 1 and FIG. 2, wherein, FIG. 1 is a schematic structural diagram of a conventional roof system in the prior art; FIG. 2 is a schematic flowchart of a method for draining a flat roof provided by the present invention.

This specific embodiment provides a method for draining water from a flat roof, which includes: step S1, setting at least one groove in the water area of the roof that communicates with the drainage outlet; step S2, setting a guide for dredging the accumulated water in the groove Through piece; Step S3, adjust the drainage gradient of the conduction piece.

It should be noted that the method for draining a flat roof provided by the present invention is suitable for new roof systems as well as existing roof systems. When the drainage system is set up by using this method, there is no need to set a slope finding layer 01 on the roof. Moreover, the setting of grooves here refers to setting more than one groove in the water accumulation area of the roof according to the direction of the water outlet and the height of the water outlet. Therefore, the location, width and depth of the groove need to be set according to the roof drainage requirements. .

It should also be noted that, since the conducting member needs to be arranged in the groove, the size and shape of the conducting member need to be matched with the shape and size of the groove. Adjusting the drainage gradient of the conducting member may refer to lifting the bottom of the conducting member to incline the conducting member, thereby changing the drainage gradient of the conducting member. The specific drainage gradient of the conducting member can be determined according to the actual application process. Actual drainage needs are determined.

In the actual application process, according to the actual situation and actual needs, the shape, structure, position and sealing method of the splicing seam of the groove and the conducting part can be determined.

Compared with the prior art, if the method for draining a flat roof provided by the present invention is applied to a new roof system, the slope finding layer 01 of the new roof system can be directly cancelled, and the height position of the plastering and leveling layer 02 of the roof can be eliminated. A conducting piece can be set on the top, or a groove can be prefabricated in the cast-in-place concrete floor of the roof, and the drainage can be achieved by adjusting the drainage slope of the conducting piece, thereby effectively prolonging the service life of the roof. Reduce the construction cost of roofing works.

If this method is used to solve the problem of poor drainage of the existing roof system, it is not necessary to reset the roof slope finding layer 01, and set a groove on the roof that communicates with the drainage outlet, and then set a conducting member in the groove, It is enough to adjust the drainage slope of the conducting member according to the actual drainage demand, which can effectively solve the problem of poor drainage of the existing roof system, thereby effectively prolonging the service life of the roof, and effectively reducing the difficulty and cost of roof maintenance.

On the basis of the above embodiment, preferably, the number of grooves is greater than or equal to one, the grooves can be connected in a grid, and the converging water outlet of each groove is communicated with the drain.

It should be noted that, setting grooves in the water area of the roof may refer to removing the slope-seeking layer 01 that has experienced serious leakage, and re-arranging grooves connected to the drainage outlet on the roof. The number of grooves is greater than or equal to Two, grid connection is formed between each groove, so as to facilitate the rainwater confluence. Finally, the rainwater conducted by the conducting parts in each groove can be circulated and gathered, and flow from the gathering outlet to the drainage outlet, finally effectively dredging standing water.

Preferably, the conducting member is a U-shaped grooved pipe or a split PVC pipe matching the size of the groove, and the port of the conducting member is flush with the horizontal plane of the roof. Therefore, these U-grooved pipes or split PVC pipes can form roof guttering for organized drainage operations.

In this embodiment, a U-shaped grooved pipe with adjustable slope or a split PVC pipe is installed in the grid-connected grooves on the roof, and then the U-shaped grooved pipe or the split PVC pipe which are spliced and connected to each other are used to carry out Organized drainage can ultimately effectively improve the problem of poor roof drainage.

In the actual application process, according to the actual situation and actual needs, the shape, size, number, position, etc. of the U-shaped grooved pipe or the split PVC pipe can be determined.

It should be noted that U-shaped grooved pipes can be made of stainless steel pipes, plastics, ceramics or other metal materials. The splicing process is simple, the surface is easy to clean, and leakage is not easy to occur, which can effectively reduce the maintenance cost of the roof system and improve the service life of the roof system.

Preferably, the bottom of the arc groove of the PVC pipe and the bottom of the U-shaped groove of the U-shaped groove pipe are higher than the water outlet of the roof. This can ensure that the water flow conducted by the PVC pipe and the U-shaped groove pipe can smoothly flow to the top of the downspout and discharge smoothly from the downspout.

On the basis of the above embodiment, preferably, adjusting the drainage gradient of the conducting member includes adjusting the drainage gradient of the conducting member by using a mortar lifting and paving process.

In this embodiment, the slitted PVC pipe or U-shaped grooved pipe can be installed in the groove first by the mortar lifting and laying process, and then the drainage slope of the PVC pipe or the U-shaped grooved pipe can be adjusted by the mortar lifting and laying process, so that the PVC pipe or the U-shaped grooved pipe can be adjusted by the mortar lifting and laying process. The water flow in the U-shaped groove pipe can be concentrated to the drainage outlet of the roof.

It should be noted that, in order to improve the waterproof effect of the roofing system, it is preferable to use waterproof mortar to carry out the mortar lifting and paving operation on the conducting parts.

In order to further illustrate the method for drainage of a flat roof provided by the present invention, an example will be given next.

When this method is used to solve the problem of poor drainage of the existing roof system, first of all, more than one groove can be set in the water accumulation area of the roof according to the direction of the water outlet and the height of the water outlet, wherein the position, width and depth of the groove The setting needs to be set according to the roof drainage needs. Then, install the split PVC pipe or U-groove pipe in the groove and make sure the PVC pipe or U-groove pipe's port is flush with the level of the roof to form a new roof drainage gutter for organized drainage Operation, the process can use the mortar lifting process to install PVC pipe or U-shaped groove pipe. Finally, the drainage slope of the PVC pipe or U-shaped groove pipe is adjusted by the mortar lifting and laying process to ensure that the water flow in the PVC pipe or U-shaped groove pipe can be converged in parallel to the drainage outlet of the roof, thus completing the drainage setting of the roof system. By using the method, the problem of poor drainage of the existing roof system can be effectively solved, the service life of the roof can be prolonged, and the maintenance difficulty and maintenance cost of the roof can be reduced.

When this method is used for a new roof system, the slope finding layer 01 of the new roof system can be directly canceled, a conducting member is set at the height of the plastering and leveling layer 02 of the roof, and the drainage slope of the conducting member can be adjusted by adjusting the drainage slope of the conducting member. Unobstructed drainage can be achieved, thereby effectively prolonging the service life of the roof, and eliminating the slope layer 01 can greatly reduce the construction cost of the roof project.

Therefore, the flat roof drainage method provided by the present invention can solve the problems that the roof gutter is easy to age and leak, and the exposed roof waterproof and thermal insulation integrated system is easy to pollute and fail. For a new roof system, the use of this method can save the construction of the slope layer 01, thereby greatly reducing the construction cost of the roofing project. For the existing roof system, the method can effectively solve the problem of poor roof drainage, reduce the difficulty and cost of roof maintenance, and reduce the risk of roof leakage. Moreover, if the method is applied to the exposed light-weight roofing system with integrated waterproofing and thermal insulation, the service life of the light-weight roofing system can be extended and the maintenance cost can be reduced; The orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of simplified description and easy understanding, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed in a specific orientation. and operation, and therefore should not be construed as limiting the present invention.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other. Any combination of all the embodiments provided by the present invention falls within the protection scope of the present invention, and is not repeated here.

The method for draining a flat roof provided by the present invention has been described in detail above. The principles and implementations of the present invention are described herein by using specific examples, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can also be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

A method for draining a flat roof, comprising:

Step S1, set at least one groove connected with the drainage outlet in the water accumulation area of the roof;

Step S2, providing a conducting member for dredging water in the groove;

Step S3, adjusting the drainage gradient of the conducting member.
The method for draining water from a flat roof according to claim 1, wherein the number of the grooves is greater than or equal to one, the grooves can be connected in a grid, and the convergence of the grooves The water outlet communicates with the water outlet.
The method for draining water from a flat roof according to claim 1, wherein the conducting member is a U-shaped grooved pipe or a split PVC pipe matched with the size of the groove, and the port of the conducting member is be flush with the horizontal plane of the roof.
The method for draining a flat roof according to claim 3, wherein the U-shaped grooved pipe is a metal part, a plastic part or a ceramic part, and the PVC pipe is a conventional building PVC drainage pipe.
The method for draining water from a flat roof according to claim 3, wherein the bottom of the arc groove of the PVC pipe and the bottom of the U-shaped groove of the U-shaped groove pipe are higher than the water outlet of the roof.
The method for draining a flat roof according to any one of claims 1 to 5, wherein the adjusting the drainage gradient of the conducting member comprises adjusting the drainage gradient of the conducting member using a mortar lifting and paving process.
The method for draining a flat roof according to claim 6, wherein the mortar used in the mortar lifting and laying process is cement mortar or waterproof mortar.