CN216690129U

CN216690129U - Anti-leakage structure for flat roof in severe cold area

Info

Publication number: CN216690129U
Application number: CN202220240840.5U
Authority: CN
Inventors: 闫振滨; 张维民; 张磊; 张立涛; 霍志宏; 梁强; 冷显东; 徐春雷; 常青; 陈斌; 张军兵; 孟宪奇; 马文志; 王芳; 薛重生; 迟艳民; 赵娜; 白鸥; 魏云霞; 李恒岩
Original assignee: Heilongjiang Shenghao Energy Saving Technology Co ltd
Current assignee: Heilongjiang Shenghao Energy Saving Technology Co ltd
Priority date: 2022-01-28
Filing date: 2022-01-28
Publication date: 2022-06-07
Anticipated expiration: 2032-01-28

Abstract

The utility model relates to a flat roof anti-leakage structure in severe cold regions. The problem of current severe cold area flat roof easy seepage is mainly solved. The method is characterized in that: the roof board (1) is provided with a roof slope finding layer (2) on the upper part, the roof slope finding layer (2) is provided with a steam insulating layer (3) on the upper part, the steam insulating layer (3) is provided with a heat insulating layer (4) on the upper part, an exhaust hole is arranged in the heat insulating layer (4), a cement mortar slope finding layer (5) is arranged on the upper part of the heat insulating layer (4), a waterproof layer (6) and an isolating layer are sequentially arranged on the upper part of the cement mortar slope finding layer (5), and a cement mortar protective layer (7) is arranged on the upper part of the isolating layer; the bottom of the parapet water collecting dustpan is provided with a drain pipe (9), the lowest part of the drain pipe (9) is aligned with the lower end of the steam barrier layer (3), and the outer side of the drain pipe (9) is communicated with a rainwater pipe (10). The flat roof anti-leakage structure in the severe cold area has the advantages of low manufacturing cost, capability of quickly discharging leakage water, good waterproofness and convenience in maintenance.

Description

Anti-leakage structure for flat roof in severe cold area

Technical Field

The utility model relates to the field of house buildings, in particular to a flat roof anti-seepage structure in severe cold regions.

Background

Flat roof leakage in severe cold areas has become a stubborn problem, and partial residential building roofs begin to leak after the guarantee period and are repeatedly repaired, and the more serious the repair is, residents complain about vocal tracks, and the normal life of the residents on the top floor is seriously influenced. Therefore, for newly built flat roofs, the problem of leakage should be considered heavily.

Disclosure of Invention

In order to overcome the defect that the flat roof in the severe cold area is easy to leak, the utility model provides the flat roof anti-leakage structure in the severe cold area.

The technical scheme of the utility model is as follows: a flat roof anti-leakage structure in severe cold areas comprises a parapet and a roof board, wherein the upper part of the roof board is a roof slope seeking layer, the upper part of the roof slope seeking layer is a steam-insulating layer, the upper part of the steam-insulating layer is provided with a heat-insulating layer, exhaust holes are formed in the heat-insulating layer, the upper part of the heat-insulating layer is a cement mortar slope seeking layer, the upper part of the cement mortar slope seeking layer is sequentially provided with a waterproof layer and an isolating layer, and the upper part of the isolating layer is a cement mortar protective layer; the bottom of the parapet water collecting dustpan is provided with a water drain pipe, the lowest part of the water drain pipe is aligned with the lower end of the steam barrier, and the outer side of the water drain pipe is communicated with the rainwater pipe.

The exhaust holes are arranged at the highest position of the roof and are arranged at intervals of 3m along the ridge direction, the exhaust holes are vertical, the upper ends of the exhaust holes are communicated with the outside, and the lower ends of the exhaust holes are in contact with the steam barrier layer.

And water storage tests are respectively carried out after the construction of the steam-proof layer and the waterproof layer, the water storage of the steam-proof layer is qualified after no leakage occurs after 24 hours, and the water storage of the steam-proof layer is qualified after 24 hours.

And dividing joints are arranged in the cement mortar slope finding layer and the cement mortar protective layer, and the dividing joints in the two layers correspond up and down.

The width of each dividing joint is 20mm, one of the outermost sides is 300mm away from the parapet wall, and the rest dividing joints divide the roof into 6000mm multiplied by 6000mm rectangles.

The heat preservation is two-layer, and every layer of heat preservation comprises a plurality of heat preservation piece respectively, and the gap between the upper heat preservation piece is sealed with the sticky tape, and the gap between two-layer heat preservation piece staggers.

The slope of the roof slope finding layer is 2%, and the thinnest part is not less than 30 mm.

The utility model has the following beneficial effects:

1. the cement mortar slope finding layer is used for slope finding, and the problems that after a conventional waterproof layer leaks, a structural leveling layer does not have a slope, and leaked water can migrate and flow on the upper portion of the steam barrier and exists on the upper portion of the steam barrier for a long time are mainly solved. After the cement mortar slope finding layer finds the slope, the leakage water is discharged to the lowest drainage pipe along the upper part of the steam barrier layer to be discharged.

2. The steam-isolating layer has waterproof function and plays a role in waterproofing.

3. The drainage pipe and the exhaust holes matched with the drainage pipe are additionally arranged, so that once water leakage exists in the steam-isolating layer, the water leakage can be quickly discharged, and air and water vapor existing in the heat-insulating layer can also be smoothly discharged.

4. The maintenance is convenient, once the waterproof layer leaks, the steam-proof layer can be directly maintained at the steam-proof layer leakage position due to a small amount of leakage, the leakage problem is directly solved, and the waterproof layer leakage point is not required to be maintained. If the steam barrier seepage is serious, can judge the position of waterproof layer seepage basically along the slope direction, maintain the waterproof layer.

5. The flat roof structure has low manufacturing cost and strong operability, and the service life of the roof is greatly prolonged.

Drawings

Fig. 1 is a schematic structural view of the present invention.

In the figure, 1-roof board, 2-roof slope finding layer, 3-steam barrier layer, 4-heat insulation layer, 5-cement mortar slope finding layer, 6-waterproof layer, 7-cement mortar protective layer, 8-separation seam, 9-water drain pipe and 10-rainwater pipe.

Detailed Description

The utility model will be further described with reference to the accompanying drawings in which:

as shown in figure 1, the flat roof anti-leakage structure in the severe cold area comprises a parapet wall and a roof panel 1, wherein the upper part of the roof panel 1 is a roof slope finding layer 2, the roof slope finding layer 2 uses 1:10 cement perlite to find a slope according to the gradient of 2%, the thinnest part is not less than 30mm, the lowest part is a water collecting port, and the surface of the upper part of the roof slope finding layer 2 is not obviously concave. The upper part of the roof slope finding layer 2 is a steam-insulating layer 3, the steam-insulating layer 3 is made of waterproof materials, the thickness is increased, and construction is carried out according to the gradient of the roof slope finding layer 2, so that the waterproof grade is improved, and the roof slope finding layer is equivalent to a waterproof layer. Meanwhile, the steam-insulating layer 3 is subjected to a water storage test, water is stored after the construction of the steam-insulating layer 3 is finished, and the water is qualified if the water is not leaked or leaked after 24 hours.

The heat preservation layer 4 is arranged on the upper portion of the steam-isolating layer 3, the heat preservation layer 4 is two-layer, each heat preservation layer 4 is respectively formed by a plurality of heat preservation blocks, gaps between the upper heat preservation blocks are sealed by adhesive tapes, the heat preservation effect is prevented from being influenced by the fact that cement mortar on the upper portion leaks into the gaps, the gaps between the two heat preservation blocks are staggered, and the heat preservation effect is improved. And the heat preservation layer 4 is internally provided with vent holes which are arranged at the highest position of the roof and are arranged along the ridge direction at intervals of 3 m. The vent holes are in the vertical direction, the upper ends of the vent holes are communicated with the outside, and a rain-proof cap is arranged at the upper ends of the vent holes to prevent rainwater from entering the vent holes; the lower end of the exhaust hole is contacted with the steam barrier 3. The exhaust hole can make steam in the heat preservation discharge firstly, and secondly utilizes the gap between the double-deck heat preservation and between heat preservation and the cement mortar slope layer 5 to make water-drain mast 8 keep the air balanced basically, makes steam barrier upper portion percolating water discharge rapidly.

The upper part of the heat-insulating layer 4 is a cement mortar slope finding layer 5, and the cement mortar slope finding layer 5 is made of materials with the cement-sand ratio of 1: 3, the upper part of the cement mortar slope finding layer 5 is sequentially provided with a waterproof layer 6 and an isolation layer, meanwhile, the waterproof layer 6 also needs to be subjected to a water storage test, water is stored after construction is finished, whether leakage water flows out from the outlet of the water drain pipe 9 is observed, and the condition that no leakage water flows out after 24 hours is qualified.

The upper part of the isolation layer is a cement mortar protective layer 7, and the proportion of cement and sand in the material used for the cement mortar protective layer 7 is 1: 2.5. and dividing joints 8 are arranged in the cement mortar slope finding layer 5 and the cement mortar protective layer 7, and the dividing joints of the two layers are vertically corresponding. When the cement mortar slope layer 5 is constructed, the dividing joints are marked, and when the cement mortar protective layer 7 is constructed, the dividing joints correspond to the dividing joints, so that the dividing joints are aligned up and down. The width of each dividing joint 8 is 20mm, one of the outermost sides is 300mm away from the parapet wall, and the rest dividing joints divide the roof into 6000mm multiplied by 6000mm rectangles. And the dividing joints 8 are filled with elastic materials, so that the temperature stress is prevented from damaging the cement mortar slope layer 5, the cement mortar protective layer 7 and the parapet.

The drain pipe 9 is embedded in the bottom of the parapet water collecting dustpan, the drain pipe 9 is a galvanized steel pipe with the diameter of 50mm and is arranged at the water collecting opening at the lowest point of the cement mortar protective layer 7, the lowest point of the drain pipe is aligned with the lower end of the steam barrier layer 3, and the outer side of the drain pipe 9 is communicated with the rainwater pipe 10. When the waterproof layer 6 leaks, the leaking water is collected to the lowest point of the drain pipe 9 along the upper part of the steam-proof layer 3 and is discharged. The position of the drain pipe is determined according to the slope thickness and the thickness of a waterproof material of a steam barrier, the height inside the drain pipe is high, the height outside the drain pipe is low, the joint and the periphery of the drain pipe and the steam barrier are required to be tight, non-permeable and non-leaking, the drain pipe is hidden inside a water outlet of a water collecting dustpan, the wall outlet length is determined according to the fact that the drain pipe can be discharged into a funnel, and the drain pipe cannot be seen from the outer side.

The anti-leakage structure of the flat roof can also be used for reforming the original flat roof. Before construction, the original steam-isolating layer is removed to each structural layer of the roof, and the water-collecting dustpan is replaced. Most of the existing building transformation projects are used for decades or decades, the water collecting dustpan is rotten, the water collecting dustpan is manufactured again according to the fact that an energy-saving heat insulation layer is additionally arranged on the outer wall, the installation elevation is adjusted, and the water drain pipe 9 needs to be installed before the water collecting dustpan is installed.

Claims

1. The utility model provides a flat roofing antiseep structure in severe cold area, includes parapet, roof boarding (1), slope layer (2), its characterized in that are looked for to roof boarding (1) upper portion: the roof slope finding layer (2) is provided with a steam insulating layer (3) at the upper part, a heat insulating layer (4) is arranged at the upper part of the steam insulating layer (3), an exhaust hole is formed in the heat insulating layer (4), a cement mortar slope finding layer (5) is arranged at the upper part of the heat insulating layer (4), a waterproof layer (6) and an isolating layer are sequentially arranged at the upper part of the cement mortar slope finding layer (5), and a cement mortar protective layer (7) is arranged at the upper part of the isolating layer; the bottom of the parapet water collecting dustpan is provided with a drain pipe (9), the lowest part of the drain pipe (9) is aligned with the lower end of the steam barrier layer (3), and the outer side of the drain pipe (9) is communicated with a rainwater pipe (10).

2. The cold region flat roof anti-seepage structure as claimed in claim 1, wherein: the exhaust holes are arranged at the highest position of the roof and are arranged at intervals of 3m along the ridge direction, the exhaust holes are vertical, the upper ends of the exhaust holes are communicated with the outside, and the lower ends of the exhaust holes are in contact with the steam barrier (3).

3. The cold region flat roof anti-seepage structure of claim 2, characterized in that: and water storage tests are respectively carried out after the construction of the steam barrier (3) and the waterproof layer (6), the steam barrier (3) is qualified when no leakage exists after 24 hours of water storage, and the waterproof layer (6) is qualified when no leakage water flows out of the outlet of the water drain pipe (9) after 24 hours of water storage.

4. The cold region flat roof anti-seepage structure of claim 3, characterized in that: and dividing joints (8) are arranged in the cement mortar slope finding layer (5) and the cement mortar protective layer (7), and the dividing joints in the two layers correspond up and down.

5. The cold region flat roof anti-seepage structure as claimed in claim 4, wherein: the width of each dividing joint (8) is 20mm, one of the outermost sides is 300mm away from the parapet wall, and the roof is divided into 6000mm multiplied by 6000mm rectangles by the rest dividing joints.

6. The cold region flat roof anti-seepage structure as claimed in claim 5, wherein: the heat-insulating layer (4) is two-layer, each heat-insulating layer (4) is composed of a plurality of heat-insulating blocks, the gaps between the upper heat-insulating blocks are sealed by adhesive tapes, and the gaps between the two heat-insulating blocks are staggered.

7. The cold region flat roof anti-seepage structure of claim 6, characterized in that: the slope of the roof slope finding layer (2) is 2%, and the thinnest part is not less than 30 mm.