阅读说明：本技术 一种屋面泛水的施工方法 (Construction method for roof flashing ) 是由 苏兴 龚洁 梁先军 张涛 于 2019-11-06 设计创作，主要内容包括：本发明公开了一种屋面泛水的施工方法,在女儿墙浇筑时,首先在女儿墙上且高度大于500mm的位置处预留防水凹槽,待屋面清理干净后,在屋面上涂刷屋面防水层,然后在屋面上铺贴防水卷材,并将防水卷材的上端伸入防水凹槽中,再用铝合金钢条对防水卷材的上端进行压边,并用钉钢钉固定铝合金钢条,再用密封膏嵌填防水凹槽周边。本发明在屋面泛水收口部位采用灰砂砖砌筑并抹灰收口后,能够有效避免开裂、空鼓的风险,而且在顶部的灰砂砖上抹成45度斜面,便于雨水顺坡排流,并在底部的灰砂砖位置抹出圆弧面,这样雨水便不会积聚,极大程度降低渗漏风险。此外,本发明采用多道防水措施进行封闭,可彻底解决屋面泛水的渗漏隐患,降低了后期的返修频率。(The invention discloses a construction method for roof flashing, which is characterized in that when a parapet is poured, a waterproof groove is reserved at the position on the parapet with the height larger than 500mm, after the roof is cleaned up, a roof waterproof layer is coated on the roof, then a waterproof coiled material is laid on the roof, the upper end of the waterproof coiled material extends into the waterproof groove, the upper end of the waterproof coiled material is pressed by an aluminum alloy steel bar, the aluminum alloy steel bar is fixed by a steel nail, and the periphery of the waterproof groove is embedded and filled by sealing paste. After the flashing closed-up part of the roof is built by the lime-sand bricks and plastered to close up, the risk of cracking and hollowing can be effectively avoided, the top lime-sand brick is plastered to form a 45-degree inclined plane, rainwater can flow along the slope conveniently, and an arc surface is plastered at the bottom lime-sand brick position, so that rainwater cannot accumulate, and the leakage risk is greatly reduced. In addition, the invention adopts a plurality of waterproof measures for sealing, can thoroughly solve the leakage hidden trouble of roof flashing and reduces the repair frequency in the later period.)

1. A construction method for roof flashing is characterized by comprising the following steps: the method comprises the steps that when a parapet (11) is poured, a waterproof groove (1) is reserved on the parapet (11) at a position with the height larger than 500mm, after a roof (12) is cleaned up, a roof waterproof layer (9) is coated on the roof (12), then a waterproof coiled material (8) is paved on the roof (12), the upper end of the waterproof coiled material (8) extends into the waterproof groove (1), the upper end of the waterproof coiled material (8) is pressed by an aluminum alloy steel bar (3), the aluminum alloy steel bar (3) is fixed by a steel nail, and the periphery of the waterproof groove (1) is filled by sealing paste (6); at the moment, the waterproof coiled material (8) on the parapet (11) is tightly adhered to the sand lime bricks (4) for masonry, meanwhile, floor tiles (13) are paved on the roof (12), the sand lime bricks (4) close to the floor tiles (13) are obliquely constructed, after the sand lime bricks (4) are constructed, a galvanized steel wire mesh is fully hung downwards along the surface of the sand lime bricks (4) at a position higher than the waterproof groove (1) by not less than 100mm, then M15 cement mortar (5) is used for plastering on the galvanized steel wire mesh, and after the plastering is finished, the polymer waterproof mortar protective layer (5) is coated on the surface of the M15 cement mortar (5).

2. The construction method of roof flashing according to claim 1, characterized in that: when the roof waterproof layer (9) is coated, firstly a layer of oily asphalt base layer treating agent is coated on the roof, then waterproof paint is coated on the roof, and meanwhile, an additional waterproof paint layer (7) with the thickness of 2mm is additionally coated on the periphery of the floor drain or the pipeline.

3. The construction method of roof flashing according to claim 1, characterized in that: and an arc chamfer (10) is arranged at the corner position of the parapet wall (11) and the roof (12) of the waterproof coiled material (8).

4. The construction method of roof flashing according to claim 1, characterized in that: the length of the lower part of the galvanized steel wire mesh extending to the roof (12) is more than 200 mm.

5. The construction method of roof flashing according to claim 1, characterized in that: when plastering, a 45-degree inclined plane is plastered on the lime-sand brick (4) at the top, and an arc surface is plastered at the position of the lime-sand brick (4) at the bottom.

6. The construction method of roof flashing according to claim 1, characterized in that: when the floor tile (13) is laid, a slope of 2% is found on the surface of the floor tile (13).

Technical Field

The invention relates to a construction method of roof flashing, belonging to the technical field of building construction.

Background

With the popularization of high-rise buildings, the roof waterproof grade is generally higher, and the roof engineering construction quality is of great importance for the high-rise buildings with higher roof design waterproof grade. The roof flashing has multiple working procedures and high requirements, and is a part with more common quality problems. In particular to a flashing closing-up part of the roof, which is a key part of the roof engineering. In the present engineering example, after the coiled material is paved and pasted on the parapet wall, the parapet wall is directly hung with a net for plastering, and the quality problems of cracking and hollowing are easy to occur, so that the hidden danger of leakage is easy to occur at the flashing closing-in position, and the later-stage use is seriously influenced.

Disclosure of Invention

The invention aims to provide a construction method for roof flashing, which adopts a plurality of waterproof measures for sealing, can thoroughly solve the hidden danger of roof flashing leakage and reduces the later repair frequency.

In order to achieve the purpose, the invention adopts the following technical scheme: a construction method of roof flashing includes the steps that when a parapet is poured, a waterproof groove is reserved at the position, with the height larger than 500mm, of the parapet, after the roof is cleaned up, a roof waterproof layer is coated on the roof, then a waterproof coiled material is paved on the roof, the upper end of the waterproof coiled material extends into the waterproof groove, the upper end of the waterproof coiled material is pressed by an aluminum alloy steel strip, the aluminum alloy steel strip is fixed by steel nails, and the periphery of the waterproof groove is filled with sealing paste in an embedding mode; at the moment, the mortar bricks are tightly attached to the waterproof coiled material on the parapet wall for building, meanwhile, the floor tiles are laid on the roof, the mortar bricks close to the floor tiles are obliquely built, after the mortar bricks are built, the galvanized steel wire meshes are fully hung at the positions which are higher than the waterproof grooves by not less than 100mm downwards along the surfaces of the mortar bricks, then M15 cement mortar is adopted for plastering on the galvanized steel wire meshes, and after the plastering is completed, the polymer waterproof mortar protective layer is coated on the surface of the M15 cement mortar.

In the method, when the roof waterproof layer is coated, firstly a layer of oily asphalt base layer treating agent is coated on the roof, then the roof is coated with waterproof paint, and simultaneously, an additional waterproof paint layer with the thickness of 2mm is additionally coated on the periphery of the floor drain or the pipeline.

In the method, the waterproof roll is provided with the arc chamfer at the corner position of the parapet and the roof.

In the method, the length of the lower part of the galvanized steel wire mesh extending to the roof is more than 200 mm.

In the method, when plastering, the lime-sand brick at the top is plastered into a 45-degree inclined surface, so that rainwater can flow down a slope conveniently, and an arc surface is plastered at the lime-sand brick at the bottom, so that rainwater cannot accumulate.

Compared with the prior art, the invention has the following advantages: after the flashing closed-up part of the roof is built by the lime-sand bricks and plastered to close up, the risk of cracking and hollowing can be effectively avoided, the top lime-sand brick is plastered to form a 45-degree inclined plane, rainwater can flow along the slope conveniently, and an arc surface is plastered at the bottom lime-sand brick position, so that rainwater cannot accumulate, and the leakage risk is greatly reduced. In addition, the invention adopts a plurality of waterproof measures for sealing, can thoroughly solve the leakage hidden trouble of roof flashing and reduces the repair frequency in the later period.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples.

The embodiment of the invention comprises the following steps: referring to fig. 1, a construction method of roof flashing, the method is when the parapet 11 is poured, reserve the waterproof groove 1 on the parapet 11 and position where the height is greater than 500mm at first, after the roofing 12 is cleaned up, coat the roofing waterproof layer 9 on the roofing 12, then lay the waterproofing membrane 8 on the roofing 12, and stretch the upper end of the waterproofing membrane 8 into the waterproof groove 1, reuse the aluminium alloy billet 3 to carry on the blank pressing to the upper end of the waterproofing membrane 8, and fix the aluminium alloy billet 3 with the steel nail, reuse the sealing compound 6 to inlay and fill the periphery of the waterproof groove 1; at the moment, the lime-sand brick 4 is tightly adhered to the waterproof coiled material 8 on the parapet 11 for building, meanwhile, the floor tiles 13 are laid on the roof 12, the lime-sand brick 4 close to the floor tiles 13 is obliquely built, after the building of the lime-sand brick 4 is completed, a galvanized steel wire mesh is fully hung at the position which is higher than the waterproof groove 1 by not less than 100mm downwards along the surface of the lime-sand brick 4, then M15 cement mortar 5 is adopted for plastering on the galvanized steel wire mesh, and after the plastering is completed, the polymer waterproof mortar protective layer 5 is coated on the surface of the M15 cement mortar 5.

In the method, when the roof waterproof layer 9 is coated, firstly a layer of oily asphalt base layer treating agent is coated on the roof, then waterproof paint is coated on the roof, and meanwhile, a waterproof paint additional layer 7 with the thickness of 2mm is additionally coated on the periphery of the floor drain or the pipeline, so that the waterproof effect is further improved.

In the method, the waterproof roll 8 is provided with an arc chamfer 10 at the corner position of the parapet 11 and the roof 12.

In the method, the length of the lower part of the galvanized steel wire mesh extending to the roof 12 is more than 200 mm.

In the method, when plastering, the lime-sand brick 4 at the top is plastered into a 45-degree inclined surface, so that rainwater can flow down a slope conveniently, and an arc surface is plastered at the position of the lime-sand brick 4 at the bottom, so that rainwater cannot accumulate.

In the above method, when the floor tile 13 is laid, 2% of the slope is found on the surface of the floor tile 13, so as to achieve the purpose of rapid drainage.

In conclusion, after the flashing closed-off part of the roof is built by the sand lime bricks 4 and is plastered to close off, the risk of cracking and hollowing can be effectively avoided, the sand lime bricks 4 at the top are plastered to form a 45-degree inclined plane, rainwater can flow along the slope conveniently, an arc surface is plastered at the position of the sand lime bricks 4 at the bottom, rainwater cannot accumulate, and the leakage risk is greatly reduced. In addition, the invention adopts a plurality of waterproof measures for sealing, can thoroughly solve the leakage hidden trouble of roof flashing and reduces the repair frequency in the later period.