CN211850402U

CN211850402U - Roof waterproof structure

Info

Publication number: CN211850402U
Application number: CN202020428029.0U
Authority: CN
Inventors: 李智
Original assignee: Sichuan Huayuan Construction Engineering Co ltd
Current assignee: Sichuan Huayuan Construction Engineering Co ltd
Priority date: 2020-03-28
Filing date: 2020-03-28
Publication date: 2020-11-03
Anticipated expiration: 2030-03-28

Abstract

The utility model relates to a roof waterproof construction relates to the waterproof technical field of building, aims at solving the roof water and permeates easily between the adjacent two-layer waterproofing membrane, leads to the problem that waterproofing membrane's overlap joint position fracture leaked after soaking for a long time. It includes from the bottom up and locates heat preservation, cement mortar screed-coat, gluing agent and the waterproofing membrane on the concrete-based layer of roofing in proper order, and the cement mortar screed-coat upper strata is parallel is equipped with a plurality of escape canals, and the seam direction setting along waterproofing membrane is arranged in the escape canal to the escape canal, and the upper waterproofing membrane edge of waterproofing membrane's overlap joint department is located in the escape canal, outside lower floor's waterproofing membrane's the edge is located the escape canal. The utility model discloses have the beneficial effect that prevents roofing water from waterproofing membrane overlap joint infiltration.

Description

Roof waterproof structure

Technical Field

The utility model belongs to the technical field of the waterproof technique of building and specifically relates to a waterproof structure of roofing is related to.

Background

The waterproof and heat-insulating performance of the roof is always an important factor for measuring the building quality, and most of the existing roof waterproof structures adopt waterproof coiled materials to bond one or more layers on the roof, so that the waterproof effect is realized. The waterproof roll is made of hydrophobic materials, so that a good waterproof effect can be achieved, however, the waterproof layer of the roof is damaged, and particularly, leakage occurs easily at the joint of the waterproof layer. When the waterproof layer of roofing suffers destruction partially, will lead to the whole waterproof performance of roofing to be thoroughly destroyed in addition, after the roofing seepage, the heat preservation effect is influenced in a large amount of intakes in the heat preservation, makes the building energy consumption increase.

For solving the problem of building infiltration, utility model with bulletin number CN203296283U discloses a roofing waterproof construction, set up the polyurethane above the characterized by roofing structural slab and film, the polyurethane film thickness is 10 ~ 15mm, set up the polyphenyl heat preservation above the polyurethane film, set up waterproof mortar above the polyphenyl heat preservation, waterproof mortar intensity is M7.5, lay modified asphalt waterproofing membrane above the waterproof mortar, lay the concrete prefabricated section above the modified asphalt waterproofing membrane, set up the heat insulating board above the concrete prefabricated section, set up the asphalt felt above the gutter position waterproof mortar as the waterproof additional layer.

Technical scheme among the above-mentioned when using waterproofing membrane, like the scheme among the prior art, place waterproofing membrane's marginal overlap joint position outside the gutter, when water flows down from the roofing, permeate easily between the adjacent two-layer waterproofing membrane, lead to waterproofing membrane's overlap joint position fracture to leak after soaking for a long time.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a roof waterproof construction, it has the beneficial effect that prevents roofing water from the infiltration of waterproofing membrane overlap joint.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a roofing waterproof construction, includes from the bottom up and locates heat preservation, cement mortar screed-coat, gluing agent and the waterproofing membrane on the concrete-based layer of roofing in proper order, the parallel a plurality of escape canals that are equipped with in cement mortar screed-coat, the escape canal is followed waterproofing membrane's seam direction sets up, the upper waterproofing membrane edge of waterproofing membrane's overlap joint department is located in the escape canal, lower floor's waterproofing membrane's edge is located outside the escape canal.

By adopting the technical scheme, the heat-insulating layer is used for indoor heat insulation; the rainwater staying on the roof partially collects in the drainage ditch and flows away, and in the process of draining water along the drainage ditch, the water has the tendency of flowing downwards unless the water is in a deep water level and overflows the drainage ditch, so that the situation that water permeates from the edges of the upper waterproof coiled material and the lower waterproof coiled material due to reverse upward flow from the inside of the drainage ditch does not occur, and the possibility of water leakage of the roof is low.

The present invention may be further configured in a preferred embodiment as: and the edge of the waterproof coiled material on the upper layer is positioned on the side wall of the drainage ditch close to one side of the waterproof coiled material.

Through adopting above-mentioned technical scheme, the overlap joint that upper waterproofing membrane is located the escape canal is on the lateral wall in escape canal all the time, even water infiltrates from this partial overlap joint, has accomplished at the log raft, also can flow down fast after the water level descends, and can not stay for a long time in the overlap joint, has further reduced the possibility that the roofing leaked.

The present invention may be further configured in a preferred embodiment as: be equipped with the wedge in the escape canal, the both sides of wedge tightly support the escape canal lateral wall and with through sealed glue adhesion between the cement mortar screed-coat, the wedge upper surface with cement mortar screed-coat upper surface is located the coplanar.

Through adopting above-mentioned technical scheme, the wedge makes the roofing upper surface keep leveling, and the waterproof layer seam protection of escape canal department, under the general condition, the water of roofing can only flow away in roofing place plane, can not contact the overlap joint between the adjacent waterproofing membrane, only when sealed glue adhesion department long-term use appear the fracture in just having water to flow into the escape canal, the water that nevertheless flows into in the escape canal this moment is less, can not upwards flow into the condition in the overlap joint of waterproof layer in a large number because the water level is higher, the overlap joint of waterproof layer has further been protected, reduce the risk that the fracture leaked.

The present invention may be further configured in a preferred embodiment as: and a drainage gap is formed between the bottom of the wedge-shaped block and the bottom of the drainage ditch.

Through adopting above-mentioned technical scheme, the drainage clearance makes the hydroenergy that infiltrates in the escape canal can smooth and easy discharge away.

The present invention may be further configured in a preferred embodiment as: and a waterproof mortar protective layer is arranged above the waterproof coiled material.

Through adopting above-mentioned technical scheme, waterproof mortar protective layer makes waterproofing membrane can directly not receive the invasion and disturbance of external environment such as wind-blown sunshine to difficult emergence ageing weathering, life is longer. Meanwhile, the waterproof mortar protective layer enables the waterproof coiled material and the cement mortar leveling layer to be attached more tightly, and cracks are not easy to generate to cause water leakage.

The present invention may be further configured in a preferred embodiment as: and a layer of asphalt felt tile is paved above the waterproof mortar protective layer.

By adopting the technical scheme, the asphalt felt tile has better waterproof performance, can better protect the roof structure of the lower layer as the waterproof layer of the uppermost layer, has better dustproof self-cleaning performance, can not form obvious stains on the surface due to dust accumulation, can resist corrosion caused by various weather factors such as illumination, rainwater and freezing, and can not generate corrosion, mottling and other phenomena under the influence of severe urban environments such as acid rain.

The present invention may be further configured in a preferred embodiment as: and cold bottom oil is coated between the heat-insulating layer and the concrete base layer and between the heat-insulating layer and the cement mortar leveling layer.

Through adopting above-mentioned technical scheme, cold bottom oil makes the bonding between heat preservation and concrete basic unit and the cement mortar screed-coat inseparabler, and crack between whole roofing structure is difficult for appearing, and waterproof insulation performance is better, and intensity is higher.

The present invention may be further configured in a preferred embodiment as: the wedge block is galvanized steel sheet, wedge block edge is equipped with the chamfer.

Through adopting above-mentioned technical scheme, galvanized steel sheet intensity is higher and difficult emergence corrosion, has guaranteed the joint strength between wedge and the escape canal, and the chamfer of setting can prevent that the wedge from stabbing waterproofing membrane in the installation, also can prevent to hinder the people.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the lap seams of the adjacent waterproof coiled materials are arranged in the drainage ditch, so that water is difficult to deeply penetrate through the lap seams between the adjacent waterproof coiled materials, and the lap seams are prevented from cracking;

2. the wedge-shaped blocks are arranged in the drainage ditch, so that less water flows into the drainage ditch, and the water is further prevented from permeating from the lap seams;

3. and the risk of roof water leakage is further realized by arranging the asphalt felt tiles.

Drawings

Fig. 1 is a schematic cross-sectional view of a roof waterproof structure disclosed in the present invention.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

In the figure, 1, a concrete base layer; 2. a heat-insulating layer; 3. cold bottom oil; 4. leveling layer of cement mortar; 5. an adhesive; 6. waterproof coiled materials; 7. a waterproof mortar protective layer; 8. felt tiles; 9. a drainage ditch; 10. a wedge block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a roofing waterproof construction, including locating heat preservation 2, cement mortar screed-coat 4, gluing agent 5, waterproofing membrane 6, waterproof mortar protective layer 7 and asphalt felt tile 8 on the concrete basic unit 1 of roofing in proper order from the bottom up, wherein, all scribble cold bottom oil 3 between heat preservation 2 and concrete basic unit 1 and the cement mortar screed-coat 4. The heat preservation 2 is used for indoor heat preservation, and cold bottom oil 3 makes the bonding between heat preservation 2 and concrete-based 1 and cement mortar screed-coat 4 inseparabler, and crack between whole roofing structure is difficult for appearing, and waterproof insulation performance is better, and intensity is higher. The cement mortar leveling layer 4 enables the waterproof coiled material 6 on the upper layer and the waterproof mortar protective layer 7 to be more uniformly coated and adhered, so that the quality of a roof is ensured, the adhesive 5 enables the waterproof coiled material 6 and the cement mortar leveling layer 4 to be more firmly bonded, and the bubbling of the waterproof coiled material 6 is avoided; waterproof mortar protective layer 7 is mainly poured by the cement mix and is formed, and smooth paining is on waterproofing membrane 6 for waterproofing membrane 6 can not directly receive the invasion of external environment such as the weather of blowing, thereby difficult emergence ageing weathering, and life is longer. Meanwhile, the waterproof mortar protective layer 7 enables the waterproof coiled material 6 and the cement mortar leveling layer 4 to be attached more tightly, and cracks are not easy to generate to cause water leakage. The asphalt felt tile 8 has good waterproof performance, can better protect the roof structure of the lower layer as the waterproof layer of the uppermost layer, meanwhile, the asphalt felt tile 8 has good dustproof self-cleaning performance, obvious stain can not be formed on the surface of the asphalt felt tile due to dust deposition, corrosion caused by various weather factors such as illumination, rainwater and freezing can be resisted, and the phenomena such as corrosion, mottling and the like can not occur under the influence of severe urban environments such as acid rain and the like.

Referring to fig. 1 and 2, a plurality of drainage ditches 9 are arranged in parallel on the upper layer of the cement mortar leveling layer 4, the cross section of each drainage ditch 9 in the width direction is in a trapezoid shape with a large upper part and a small lower part, the drainage ditches 9 are arranged along the joint direction of the waterproof rolls 6, one ends of the drainage ditches 9 are communicated to the gutter, the edges of the upper waterproof rolls 6 at the lap joints of the waterproof rolls 6 are positioned on the side walls of the drainage ditches 9 close to one sides of the waterproof rolls 6, and the edges of the lower waterproof rolls 6 are positioned outside the drainage ditches 9; be provided with wedge 10 in the escape canal 9, wedge 10 is the galvanized steel sheet, wedge 10's cross sectional shape is the same with the first half's of escape canal 9 cross-section, and wedge 10 highly is less than the degree of depth of escape canal 9, wedge 10's both sides tightly support escape canal 9 lateral wall upper portion, and with the cement mortar adhesion layer 4 between through sealed glue, thereby make and have the drainage clearance between wedge 10 bottom and the escape canal 9 bottom, the drainage clearance makes the hydroenergy that infiltrates in the escape canal 9 discharge away smoothly, in order to prevent that wedge 10 from stabbing waterproofing membrane 6 in the installation, and prevent that the in-process of installation wedge 10 from hurting the people, wedge 10 edge is provided with the chamfer. The upper surface of the wedge-shaped block 10 and the upper surface of the cement mortar leveling layer 4 are positioned in the same plane, so that the flatness of the upper surface of the cement mortar leveling layer 4 is ensured.

The rainwater that stops on the roof can only flow away in the plane of roofing place, can not contact the overlap joint between the adjacent waterproofing membrane 6, only when sealed glue adhesion department uses for a long time and the crack appears in the time just can have water to flow into in the escape canal 9, the water that flows into in the escape canal 9 can flow away along escape canal 9, in the in-process that water was discharged away along escape canal 9, except that the condition of overflowing escape canal 9 in the deep water level, otherwise, because water has the trend of downflow, consequently can not appear from the inside backward flow of escape canal 9 and lead to the condition of water from the edge infiltration of upper waterproofing membrane 6 and lower floor waterproofing membrane 6, and the water that infiltrates in the escape canal 9 is generally less, therefore the possibility of roof leakage is less.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a roofing waterproof construction, includes that from the bottom up locates heat preservation (2), cement mortar screed-coat (4), gluing agent (5) and waterproofing membrane (6) on the concrete-based layer (1) of roofing in proper order, its characterized in that: the cement mortar screed-layer (4) upper strata is parallel is equipped with a plurality of escape canals (9), escape canal (9) are followed the seam direction setting of waterproofing membrane (6), upper waterproofing membrane (6) edge position of the overlap joint department of waterproofing membrane (6) in escape canal (9), the edge position of lower floor's waterproofing membrane (6) outside escape canal (9).

2. The water resistant roofing construction of claim 1 wherein: the edge of the waterproof coiled material (6) on the upper layer is positioned on the side wall of one side, close to the waterproof coiled material (6), of the drainage ditch (9).

3. The water resistant roofing construction of claim 2 wherein: be equipped with wedge (10) in escape canal (9), the both sides of wedge (10) are tightly supported escape canal (9) lateral wall and with through sealed glue adhesion between cement mortar screed-layer (4), wedge (10) upper surface with cement mortar screed-layer (4) upper surface is located the coplanar.

4. A water resistant roofing construction according to claim 3 wherein: and a drainage gap is formed between the bottom of the wedge-shaped block (10) and the bottom of the drainage ditch (9).

5. The water resistant roofing construction of claim 1 wherein: and a waterproof mortar protective layer (7) is arranged above the waterproof coiled material (6).

6. The water resistant roofing construction of claim 5 wherein: and a layer of asphalt felt tile (8) is paved above the waterproof mortar protective layer (7).

7. The water resistant roofing construction of claim 1 wherein: and cold bottom oil (3) is coated between the heat-insulating layer (2) and the concrete base layer (1) and between the heat-insulating layer and the cement mortar leveling layer (4).

8. A water resistant roofing construction according to claim 3 wherein: the wedge-shaped block (10) is a galvanized steel plate, and the edge of the wedge-shaped block (10) is provided with a chamfer.