CN111691614B - Construction method of roof parapet flashing protective layer - Google Patents

Construction method of roof parapet flashing protective layer Download PDF

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Publication number
CN111691614B
CN111691614B CN202010627364.8A CN202010627364A CN111691614B CN 111691614 B CN111691614 B CN 111691614B CN 202010627364 A CN202010627364 A CN 202010627364A CN 111691614 B CN111691614 B CN 111691614B
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China
Prior art keywords
layer
waterproof
roof
parts
parapet wall
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CN202010627364.8A
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CN111691614A (en
Inventor
曾维军
陈用权
叶茂
谭弟刚
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Chongqing Huali Construction Co ltd
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Chongqing Huali Construction Co ltd
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Publication of CN111691614A publication Critical patent/CN111691614A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
    • E04D13/14Junctions of roof sheathings to chimneys or other parts extending above the roof
    • E04D13/1407Junctions of roof sheathings to chimneys or other parts extending above the roof for flat roofs
    • E04D13/1415Junctions to walls extending above the perimeter of the roof
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D11/00Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
    • E04D11/02Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/10Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/14Fastening means therefor
    • E04D5/141Fastening means therefor characterised by the location of the fastening means
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/14Fastening means therefor
    • E04D5/144Mechanical fastening means
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482Coating or impregnation materials
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
    • E04D13/14Junctions of roof sheathings to chimneys or other parts extending above the roof
    • E04D2013/1422Parapet building elements for retaining the roof flashing

Abstract

The invention discloses a construction method of a flashing protective layer of a parapet of a roof, which comprises the following steps: s1: a transverse clamping groove is formed in the top of the inner side face of the parapet wall; drilling a plurality of mounting holes on the inner side surface of the parapet wall and the top surface of the roof layer; s2: placing a plurality of fixing nails in the mounting holes, and welding the fixing nails with the outer ends of the fixing rings to fix lantern rings; s3: cleaning sundries on the inner side surface of the parapet wall and the top surface of the roof layer, and smearing waterproof paint to form a waterproof layer after cleaning; s4: steel bars penetrate into the lantern ring, a plurality of steel bars are bound and fixed to form a steel bar framework, and a sunshade is covered on the steel bar framework and used for shielding the waterproof layer; s5: after the waterproof layer is naturally dried in the shade, the sunshade is uncovered, concrete grout is poured on the waterproof layer on the basis of the steel reinforcement framework, then the sunshade is used for covering, and the concrete grout is solidified on the waterproof layer to form a concrete base layer. This technical scheme can prevent effectively that waterproofing membrane from receiving external factor influence and being damaged.

Description

Construction method of roof parapet flashing protective layer
Technical Field
The invention belongs to the field of buildings, and particularly relates to a construction method of a flashing protective layer of a parapet wall of a roof.
Background
Parapet is the low wall that is used for avoiding falling the usefulness on the house top edge, and its main guard action that plays, and parapet flashing is the waterproof engineering of parapet perpendicular to roof position, mainly is to avoid along parapet infiltration and inside a measure that changes. At present, numerous domestic buildings are provided with a fine stone concrete roof protection layer on the roof, and due to the defect of a waterproof structure of the parapet flashing, the flashing protection layer is mostly cracked, frozen and crisp and shed due to solarization in summer and freeze thawing in winter after completion of the project.
Disclosure of Invention
The invention aims to provide a construction method for a flashing protective layer of a parapet wall of a roof, which overcomes the defects in the prior art.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
a construction method of a flashing protective layer of a roof parapet wall comprises the following steps:
s1: a transverse clamping groove is formed in the top of the inner side face of the parapet wall;
drilling a plurality of mounting holes on the inner side surface of the parapet wall and the top surface of the roof layer;
s2: placing a plurality of fixing nails in the mounting holes, and welding the fixing nails with the outer ends of the fixing rings to fix lantern rings;
s3: cleaning sundries on the inner side surface of the parapet wall and the top surface of the roof layer, and smearing waterproof paint to form a waterproof layer after cleaning;
s4: steel bars penetrate into the lantern ring, a plurality of steel bars are bound and fixed to form a steel bar framework, and a sunshade is covered on the steel bar framework and used for shielding the waterproof layer;
s5: after the waterproof layer is naturally dried in the shade, uncovering the sunshade, pouring concrete grout on the waterproof layer on the basis of the steel reinforcement framework, then covering the sunshade, and solidifying the concrete grout on the waterproof layer to form a concrete base layer;
s6: paving a waterproof coiled material on the concrete base layer, embedding the top edge of the waterproof coiled material into the transverse clamping groove, paving the waterproof coiled material along the surface of the concrete base layer, and adhering and fitting the waterproof coiled material and the concrete base layer;
s7: spraying cement slurry on the surface of the waterproof roll, and forming a protective shell after the cement slurry is dried;
s8: and spraying shading paint on the surface of the protective shell to form a light protection layer.
Further defined, the thickness of the protective shell is 5-10 mm;
the adopted cement paste comprises the following raw materials in parts by weight: 100 parts of cement, 20-35 parts of rust and 20-30 parts of gypsum;
the preparation method comprises the following steps: firstly grinding the iron rust to 60-80 meshes, reserving 1/10 parts for later use, and uniformly mixing the rest of the iron rust, cement and gypsum by adding water until the mixture is static for 5min until the dryness of the mixture without precipitation of clear water is taken as the standard;
the spraying method comprises the following steps: and (3) uniformly spraying cement paste on the waterproof roll by using a material sprayer, then spreading the remained rust on the surface of the waterproof roll, troweling the rust, and then covering the sunshade film to naturally dry in the shade.
Further limit, the waterproof coiled material is completely covered on the surface of the concrete base layer, and extends towards the bottom of the parapet wall and two side edges of the roof layer, and the extension length of the waterproof coiled material is 100-300 mm.
Further limited, the shading paint comprises the following raw materials in parts by weight: 100 parts of resin, 3-7 parts of pigment and 10-15 parts of glass beads;
the preparation method comprises the following steps: adding resin, pigment and glass beads into a vacuum high-speed stirrer for stirring at the stirring speed of 1800-2000r/min for 5-10min, and keeping the temperature at 30-35 ℃ during stirring;
spraying can be carried out after stirring is finished, and the spraying thickness is 2-5 mm.
Compared with the prior art, the waterproof coiled material has the advantages that the concrete base layer is used as the installation foundation of the waterproof coiled material, and the waterproof coiled material, the parapet wall and the roof layer are combined into an integral structure through the steel reinforcement framework and the fixing nails; and through spraying concrete thick liquid and form the protecting crust on waterproofing membrane surface, and the shading material of spraying outside the protecting crust protects the protecting crust, and then protect waterproofing membrane, the protecting crust is formed by adding the concrete thick liquid spraying that has rust simultaneously, it effectively improves the structural strength of protecting crust, and the protecting crust top layer is through adding the content way of rust, it is harder at its top layer structural strength, improve overall structure intensity, the shading material passes through resin and glass microballon and forms through adding pigment mixing stirring spraying, have extremely strong corrosion resistance and light-proofness, and simultaneously, the glass microballon can play the effect of light reflection, reduce the damage that the long-time high light in roof caused, can prevent effectively that waterproofing membrane from receiving external factor influence and being damaged.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of A in FIG. 1;
the main element symbols are as follows:
parapet 1, roof layer 2, staple 3, framework of steel reinforcement 4, concrete-based layer 5, waterproofing membrane 6, protective housing 7, light protection layer 8, waterproof layer 9.
Detailed Description
In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, a construction method of a flashing protective layer of a parapet wall of a roof comprises the following steps:
s1: a transverse clamping groove is formed in the top of the inner side face of the parapet wall;
drilling a plurality of mounting holes on the inner side surface of the parapet wall and the top surface of the roof layer;
s2: placing a plurality of fixing nails in the mounting holes, and welding the fixing nails with the outer ends of the fixing rings to fix lantern rings;
s3: cleaning sundries on the inner side surface of the parapet wall and the top surface of the roof layer, and smearing waterproof paint to form a waterproof layer after cleaning;
s4: steel bars penetrate into the lantern ring, a plurality of steel bars are bound and fixed to form a steel bar framework, and a sunshade is covered on the steel bar framework and used for shielding the waterproof layer;
s5: after the waterproof layer is naturally dried in the shade, uncovering the sunshade, pouring concrete grout on the waterproof layer on the basis of the steel reinforcement framework, then covering the sunshade, and solidifying the concrete grout on the waterproof layer to form a concrete base layer;
s6: paving a waterproof coiled material on the concrete base layer, embedding the top edge of the waterproof coiled material into the transverse clamping groove, paving the waterproof coiled material along the surface of the concrete base layer, and adhering and fitting the waterproof coiled material and the concrete base layer;
s7: spraying cement slurry on the surface of the waterproof roll, and forming a protective shell after the cement slurry is dried;
s8: and spraying shading paint on the surface of the protective shell to form a light protection layer.
Preferably, the thickness of the protective shell is 5-10 mm;
the adopted cement paste comprises the following raw materials in parts by weight: 100 parts of cement, 20-35 parts of rust and 20-30 parts of gypsum;
the preparation method comprises the following steps: firstly grinding the iron rust to 60-80 meshes, reserving 1/10 parts for later use, and uniformly mixing the rest of the iron rust, cement and gypsum by adding water until the mixture is static for 5min until the dryness of the mixture without precipitation of clear water is taken as the standard;
the spraying method comprises the following steps: and (3) uniformly spraying cement paste on the waterproof roll by using a material sprayer, then spreading the remained rust on the surface of the waterproof roll, troweling the rust, and then covering the sunshade film to naturally dry in the shade.
Preferably, the waterproof coiled material completely covers the surface of the concrete base layer, and extends towards the bottom of the parapet wall and two side edges of the roof layer, and the extension length of the waterproof coiled material is 100-300 mm.
Preferably, the shading paint comprises the following raw materials in parts by weight: 100 parts of resin, 3-7 parts of pigment and 10-15 parts of glass beads;
the preparation method comprises the following steps: adding resin, pigment and glass beads into a vacuum high-speed stirrer for stirring at the stirring speed of 1800-2000r/min for 5-10min, and keeping the temperature at 30-35 ℃ during stirring;
spraying can be carried out after stirring is finished, and the spraying thickness is 2-5 mm.
According to the technical scheme, a concrete base layer is used as an installation foundation of the waterproof roll, and the concrete base layer, the parapet wall and a roof layer are combined into an integral structure through a steel reinforcement framework and fixing nails; and through spraying concrete thick liquid and form the protecting crust on waterproofing membrane surface, and the shading material of spraying outside the protecting crust protects the protecting crust, and then protect waterproofing membrane, the protecting crust is formed by adding the concrete thick liquid spraying that has rust simultaneously, it effectively improves the structural strength of protecting crust, and the protecting crust top layer is through adding the content way of rust, it is harder at its top layer structural strength, improve overall structure intensity, the shading material passes through resin and glass microballon and forms through adding pigment mixing stirring spraying, have extremely strong corrosion resistance and light-proofness, and simultaneously, the glass microballon can play the effect of light reflection, reduce the damage that the long-time high light in roof caused, can prevent effectively that waterproofing membrane from receiving external factor influence and being damaged.
The construction method of the flashing protective layer of the parapet wall of the roof provided by the invention is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (4)

1. A roof parapet flashing protective layer construction method is characterized in that: the method comprises the following steps:
s1: a transverse clamping groove is formed in the top of the inner side face of the parapet wall;
drilling a plurality of mounting holes on the inner side surface of the parapet wall and the top surface of the roof layer;
s2: placing a plurality of fixing nails in the mounting holes, and welding the fixing nails with the outer ends of the fixing rings to fix lantern rings;
s3: cleaning sundries on the inner side surface of the parapet wall and the top surface of the roof layer, and smearing waterproof paint to form a waterproof layer after cleaning;
s4: steel bars penetrate into the lantern ring, a plurality of steel bars are bound and fixed to form a steel bar framework, and a sunshade is covered on the steel bar framework and used for shielding the waterproof layer;
s5: after the waterproof layer is naturally dried in the shade, uncovering the sunshade, pouring concrete grout on the waterproof layer on the basis of the steel reinforcement framework, then covering the sunshade, and solidifying the concrete grout on the waterproof layer to form a concrete base layer;
s6: paving a waterproof coiled material on the concrete base layer, embedding the top edge of the waterproof coiled material into the transverse clamping groove, paving the waterproof coiled material along the surface of the concrete base layer, and adhering and fitting the waterproof coiled material and the concrete base layer;
s7: spraying cement slurry on the surface of the waterproof roll, and forming a protective shell after the cement slurry is dried;
s8: and spraying shading paint on the surface of the protective shell to form a light protection layer.
2. The construction method of the flashing protective layer of the parapet wall of the roof as claimed in claim 1, wherein: the thickness of the protective shell is 5-10 mm;
the adopted cement paste comprises the following raw materials in parts by weight: 100 parts of cement, 20-35 parts of rust and 20-30 parts of gypsum;
the preparation method comprises the following steps: firstly grinding the iron rust to 60-80 meshes, reserving 1/10 parts for later use, and uniformly mixing the rest of the iron rust, cement and gypsum by adding water until the mixture is static for 5min until the dryness of the mixture without precipitation of clear water is taken as the standard;
the spraying method comprises the following steps: and (3) uniformly spraying cement paste on the waterproof roll by using a material sprayer, then spreading the remained rust on the surface of the waterproof roll, troweling the rust, and then covering the sunshade film to naturally dry in the shade.
3. The construction method of the flashing protective layer of the parapet wall of the roof as claimed in claim 1, wherein: the waterproof coiled material is completely covered on the surface of the concrete base layer, and extends towards the bottom of the parapet wall and two side edges of the roof layer, and the extension length of the waterproof coiled material is 100-300 mm.
4. The construction method of the flashing protective layer of the parapet wall of the roof as claimed in claim 1, wherein: the shading paint comprises the following raw materials in parts by weight: 100 parts of resin, 3-7 parts of pigment and 10-15 parts of glass beads;
the preparation method comprises the following steps: adding resin, pigment and glass beads into a vacuum high-speed stirrer for stirring at the stirring speed of 1800-2000r/min for 5-10min, and keeping the temperature at 30-35 ℃ during stirring;
spraying can be carried out after stirring is finished, and the spraying thickness is 2-5 mm.
CN202010627364.8A 2020-07-01 2020-07-01 Construction method of roof parapet flashing protective layer Active CN111691614B (en)

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Publication number Priority date Publication date Assignee Title
CN112343263A (en) * 2020-10-29 2021-02-09 中国二冶集团有限公司 Parapet wall waterproof device and construction method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107574981A (en) * 2017-08-22 2018-01-12 中国十七冶集团有限公司 A kind of inverted roof parapet flashing construction method
CN209637122U (en) * 2018-12-28 2019-11-15 济南一诺振华防腐保温工程有限公司 A kind of waterproof construction for parapet
CN110485650A (en) * 2019-08-21 2019-11-22 广西建工集团第五建筑工程有限责任公司 A kind of water-proof system and its construction method of the modularization precast concrete circular arc chamfering for rolled roofing material waterproof paving
CN110778034A (en) * 2019-11-22 2020-02-11 上海宝冶集团有限公司 Roof parapet internal corner structure and construction method thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6838152B2 (en) * 2003-01-21 2005-01-04 Isp Investments Inc. Low pigments costs algae-retardant roofing granule products containing metallic copper
CZ306062B6 (en) * 2011-03-28 2016-07-20 ourek Pavel Ĺ Sandwich type damp-proofing and application method thereof
CN103104071B (en) * 2013-02-01 2015-07-15 中铁建设集团有限公司 Intelligent snow-removing and solar-protection device
CN108412222A (en) * 2018-03-13 2018-08-17 广西金雨伞防水装饰有限公司 A kind of construction leakage internal maintenance waterproof layer structure and construction technology
CN109339355B (en) * 2018-11-21 2020-06-05 中建二局第二建筑工程有限公司 Construction method of aluminum plate roof waterproof joint adopting ALC (autoclaved lightweight concrete) plate as structural plate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107574981A (en) * 2017-08-22 2018-01-12 中国十七冶集团有限公司 A kind of inverted roof parapet flashing construction method
CN209637122U (en) * 2018-12-28 2019-11-15 济南一诺振华防腐保温工程有限公司 A kind of waterproof construction for parapet
CN110485650A (en) * 2019-08-21 2019-11-22 广西建工集团第五建筑工程有限责任公司 A kind of water-proof system and its construction method of the modularization precast concrete circular arc chamfering for rolled roofing material waterproof paving
CN110778034A (en) * 2019-11-22 2020-02-11 上海宝冶集团有限公司 Roof parapet internal corner structure and construction method thereof

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