CN113882600A - Roof parapet concrete roof-pressing heat-insulating waterproof construction method - Google Patents
Roof parapet concrete roof-pressing heat-insulating waterproof construction method Download PDFInfo
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- CN113882600A CN113882600A CN202111314869.XA CN202111314869A CN113882600A CN 113882600 A CN113882600 A CN 113882600A CN 202111314869 A CN202111314869 A CN 202111314869A CN 113882600 A CN113882600 A CN 113882600A
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- 238000010276 construction Methods 0.000 title claims abstract description 71
- 238000003825 pressing Methods 0.000 title claims abstract description 52
- 239000010410 layer Substances 0.000 claims abstract description 207
- 239000000463 material Substances 0.000 claims abstract description 109
- 238000009413 insulation Methods 0.000 claims abstract description 94
- 239000011490 mineral wool Substances 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 239000010426 asphalt Substances 0.000 claims abstract description 19
- 239000004575 stone Substances 0.000 claims abstract description 17
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 13
- 230000010485 coping Effects 0.000 claims abstract description 12
- 239000002344 surface layer Substances 0.000 claims abstract description 12
- 239000011241 protective layer Substances 0.000 claims abstract description 10
- 230000001502 supplementing effect Effects 0.000 claims abstract description 9
- 238000004321 preservation Methods 0.000 claims description 38
- 238000002955 isolation Methods 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 238000004140 cleaning Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 18
- 239000011324 bead Substances 0.000 claims description 12
- 239000010408 film Substances 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 claims description 11
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
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- 238000005498 polishing Methods 0.000 claims description 5
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- 230000007423 decrease Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 12
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- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
- E04D13/1407—Junctions of roof sheathings to chimneys or other parts extending above the roof for flat roofs
- E04D13/1415—Junctions to walls extending above the perimeter of the roof
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/15—Trimming strips; Edge strips; Fascias; Expansion joints for roofs
- E04D13/158—Trimming strips; Edge strips; Fascias; Expansion joints for roofs covering the overhang at the eave side, e.g. soffits, or the verge of saddle roofs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
- E04D13/1606—Insulation of the roof covering characterised by its integration in the roof structure
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
- E04D2013/1422—Parapet building elements for retaining the roof flashing
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention relates to a concrete roof-pressing heat-insulating waterproof construction method for a parapet of a roof, which aims to solve the problem of high cost and is characterized in that after a steel wire mesh anti-crack mortar is nailed on a base body surface adjacent to the parapet and the roof and is plastered, the base body surface is cleaned and leveled and a steam-insulating waterproof layer is laid; rock wool boards and corner protection assembly lines are adhered on the concrete cornice and the coping surface; the front vertical concave area of the parapet is bonded and anchored with a heat insulation board, an inner reinforcing steel bar net fine stone concrete layer is arranged behind a high-density heat insulation board close to the roof slope finding and arranged adjacent to the roof, and a steam-isolating coiled material and a heat insulation waterproof layer close to the roof slope finding are arranged at the middle lower part of the rear vertical surface of the parapet and adjacent to the roof slope finding; the middle lower part of the rear vertical face of the parapet wall is provided with a rear vertical face lower insulation board and a corner supplementing block, a modified asphalt waterproof coiled material is arranged at the rear part of the parapet wall, and a vertical concave area at the rear side of a modified asphalt waterproof coiled material layer at the upper part of the rear vertical face of the parapet wall is supplemented by a rear vertical face upper insulation board; and a fine stone concrete protective layer and a decorative surface layer are arranged on the constructed parapet and the adjacent roof surface. Has the advantages of low cost, simple and reliable waterproof and heat-insulating method, good effect and long service life.
Description
Technical Field
The invention relates to a parapet heat-insulating waterproof construction method, in particular to a roof parapet concrete roof-pressing heat-insulating waterproof construction method.
Background
The invention relates to a parapet heat-insulating waterproof construction method, in particular to a roof parapet concrete roof-pressing heat-insulating waterproof construction method.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a concrete roof-pressing, heat-insulating and waterproof construction method for a roof parapet. The construction method has the advantages of low cost, simple and reliable waterproof and heat-insulating method and long service life.
In order to achieve the purpose, the concrete coping heat preservation waterproof construction method of the roofing parapet is characterized in that after the concrete is discharged from the concrete coping parapet, a cornice and a cornice before the concrete is jacked, steel wire mesh anti-crack mortar is nailed on the matrix surface adjacent to the parapet and the roof, the anti-crack mortar is plastered and the plastering and other matrix surfaces are cleaned and leveled, and a steam-proof waterproof layer is laid; rock wool boards and corner protection assembly lines are adhered on the concrete cornice with the steam-isolating waterproof layer and the concrete coping surface of the parapet wall between the concrete cornice and the parapet wall; the front vertical concave area of the parapet wall provided with the steam-isolating waterproof layer is filled with two layers of front vertical face heat-insulating plates which are bonded and anchored, an inner reinforced net fine stone concrete layer is arranged on the upper surface of the adjacent roof steam-isolating waterproof layer after the high-density heat-insulating plate close to the roof slope is arranged, and steam-isolating coiled materials are arranged on the middle lower part of the rear vertical face of the parapet wall provided with the steam-isolating waterproof layer and the surface of the inner reinforced net fine stone concrete layer; an adjacent roof slope-finding heat-insulating waterproof layer is arranged on the steam-insulating coiled material of the adjacent roof; the middle lower part of the rear vertical face of the parapet provided with the steam-isolating waterproof layer is provided with a rear vertical face lower insulation board, a top surface and footing high-density insulation board inclined plane corner supplementing block, the rear vertical face lower insulation board, the corner supplementing block, the upper part of the rear vertical face of the parapet, the bottom self-adhesive waterproof coiled material of the adjacent area and the adjacent roof surface high-density insulation board are provided with modified asphalt waterproof coiled materials, and the vertical concave area on the rear side of the modified asphalt waterproof coiled material layer on the upper part of the rear vertical face of the parapet is leveled up by the rear vertical face upper insulation board; and a fine stone concrete protective layer and a decorative surface layer are arranged on the constructed parapet and the adjacent roof surface. The high-density heat-insulation board is a high-density EPS heat-insulation board with the thickness of 300 mm. The front vertical face heat insulation board, the rear vertical face lower heat insulation board and the rear vertical face upper heat insulation board are rock wool heat insulation boards or graphite extrusion molding benzene heat insulation boards. Has the advantages of low cost, simple and reliable waterproof and heat-insulating method and long service life.
Preferably, the adjacent roof slope finding heat preservation waterproof layer is formed by laying a double-layer staggered joint high-density heat preservation plate and an adjacent area bottom layer self-adhesive waterproof coiled material on a steam insulation coiled material of an adjacent roof.
As optimization, the thickness of the slope-finding bottom layer of the high-density heat-insulation board is gradually reduced from the far end to the near end of the parapet wall.
Preferably, the stone concrete protective layer and the decorative surface layer are fine stone concrete protective layers provided with steel wire meshes firstly, and then decorative surface layers are arranged. The decorative surface layer is an outer wall coating layer.
And optimally, the front vertical concave area of the parapet wall provided with the steam-proof waterproof layer is fixed by bonding two layers of front vertical face heat-insulation boards and then a bridge-cut-off heat-insulation expansion anchor bolt, and the front vertical face of the outer layer front vertical face heat-insulation board is vertically aligned with the front vertical face of the steam-proof waterproof layer of the top front cornice.
And optimally, the rear vertical surface of the heat-insulating plate on the rear vertical surface is vertically flush with the rear vertical surface of the modified asphalt waterproof coiled material of the heat-insulating plate under the rear vertical surface and the rear vertical surface of the steam-proof waterproof layer of the rear cornice.
Preferably, the inclined plane corner repairing blocks of the top surface and the bottom foot high-density heat insulation board are right-angle slope corner repairing blocks, the cross sections of the bottom foot right-angle slope corner repairing blocks are isosceles right triangles, and the cross sections of the top surface right-angle slope corner repairing blocks are unequal waist right triangles with the upper bottom angle larger than two times of the outer bottom angle.
8. The roof parapet concrete roof-pressing heat-insulating waterproof construction method according to claim 1, characterized in that the top edge of the modified asphalt waterproof roll and the upper end of the rear vertical surface of the parapet are fixed by closing with a pressing strip; the corner protection water line is a multifunctional corner protection water line arranged at the convex angle of the rock wool board and the adjacent joint of the corner and the cornice steam-insulation waterproof layer.
Setting a flat-top parapet wall concrete cornice pressing top with front and back cornices on the top surface of the parapet wall with the height less than or equal to 1200mm, cleaning and leveling the upper end surface of the flat-top parapet wall concrete cornice pressing top, paving a steam-proof waterproof layer, and then adhering a rock wool board fireproof isolation belt; the top surface of the parapet wall with the height more than or equal to 1200mm is provided with a front top cornice and a back top lower cornice turning parapet wall concrete cornice pressing top, the upper end surface of the front top cornice pressing top, the back side surface of the back top parapet wall and the upper end surface of the back top lower cornice are cleaned and leveled, and the rock wool board fireproof isolation belt is adhered after the steam-proof waterproof layer is paved. The vertical distance between the lower surface of the concrete cornice below the rear top and the lowest part of the modified asphalt waterproof coiled material is more than or equal to 1000 mm.
9. The concrete roof parapet heat-preservation and waterproof construction method according to claim 8, characterized in that the bead closing-in fixation is realized by closing in the top edge of the modified asphalt waterproof roll and the upper end of the rear vertical surface of the parapet with a steel bead and fixing with a steel bolt.
Multifunctional corner protection flow lines are arranged between the outer end face of the fireproof isolation belt of the rock wool board for the top-hat parapet concrete cornice coping and the end face of the lower adjacent top cornice steam-isolation waterproof layer; the multifunctional angle bead flow line is arranged between the outer end face of the top rock wool board fireproof isolation belt subjected to cornice pressing on the top parapet wall concrete and the side end face of the steam-insulation waterproof layer subjected to cornice pressing on the lower adjacent top, the rear end face of the top rock wool board fireproof isolation belt subjected to cornice pressing on the top parapet wall concrete is provided with the multifunctional angle bead flow line, the multifunctional angle bead flow line is arranged between the side end face of the rear rock wool board fireproof isolation belt subjected to cornice pressing on the top parapet wall concrete and the side face of the steam-insulation waterproof layer subjected to adjacent parapet wall, and the multifunctional angle bead flow line is arranged between the rock wool board fireproof isolation belt subjected to cornice pressing on the lower top of the rear top and the rear end face of the steam-insulation waterproof layer subjected to cornice pressing on the lower side of the adjacent rear top.
As optimization, the step of cleaning and leveling comprises 1) cleaning up sundries and laitance on the base surface and leveling by using leveling mortar; 2) ensuring that the base surface is dry; 3) performing waterproof strengthening treatment on the nodes; paving a layer of coiled material at the waterproof node part as an additional layer or paving a layer of coiled material as an additional layer after the waterproof node part is nailed with a steel wire mesh and is smeared with anti-crack mortar for reinforcement; and supplementary leveling is carried out according to the requirement.
The laying and pasting of the steam-insulation waterproof layer determines the lapping direction of the air-insulation laying and pasting according to the running direction, the lapping length of the long side and the short side is not less than 80-100mm, and the joint seam and the edge closing part need to be compacted and sealed; a chamfer angle of 45 degrees is required to be made at the T-shaped joint; the lap joint and the T-shaped joint part must be baked by a spray gun; when the air temperature is low, the steam-isolating layer needs to be baked by all spray guns for auxiliary heating and pasting.
Construction of the heat insulation board: 1) PU glue is adopted between the heat preservation layer and the steam barrier layer, and between the heat preservation layer and the heat preservation layer, a 4 x 2 strip method is adopted for pasting, and the strip width is not less than 20 mm; when the laminated adhesive is used for laminating, the upper layer plate, the lower layer plate, the left layer plate and the right layer plate are staggered, and the long sides and the short sides are preferably staggered 1/3 respectively; 2) the paving and pasting boards on the same layer are tightly squeezed, the gap between the boards is not more than 2mm, and the height difference is not more than 1.5 mm; the plate seam is more than 2mm and is filled by the similar heat preservation plate strips, and the plate seam is less than 2mm and is filled by PU foaming; polishing and flattening the materials with the height difference of more than 1.5mm by using sand paper or a steel brush, and cleaning residues; 3) the side wall of the parapet wall part needs to be constructed simultaneously with the roof, and the heat insulation boards at the joint of the flat side and the vertical side need to be in split joint; the heat insulation thickness of the first and second layer plates of the side wall is the same as that of the first and second layers of the roof; 4) the slope finding plate is stuck from a low position to a high position.
Paving and pasting coiled materials: the operation key points are as follows: firstly, uncoiling the coiled material, aligning the coiled material with the thin film surface facing downwards, then rolling up one end, and baking the bottom surface of the coiled material by using a flame thrower; when the film is baked until the film is melted, the bottom of the coiled material is glossy and black, and a thin melting layer is formed, pushing the coiled material by feet to press the coiled material to stick the bottom layer; after positioning, starting the other end, and continuing the method; overlapping the joint and the joint of the coil and the coil by 5-10 cm in width, baking and melting by a flame thrower, then pressing tightly, and firmly combining the coil and the joint together from top to bottom; paving the coiled material from low to high; when the baking is carried out, the heating is uniform, and when the heated surface is changed into a fluid surface to generate a wave, the heating is enough; when the heating and paving are pressed by foot, a small amount of mixture is preferably overflowed from the edge of the coiled material.
The method for checking the dryness degree of the base surface after leveling comprises the following steps: 1m is2The large and small coiled materials are laid on the leveling layer in a dry mode, the coiled materials are lifted and observed after standing for 3 to 4 hours, no water marks or water drops are found on the covering part of the leveling layer and the bottom surface of the coiled materials, and the drying degree meets the requirement.
In a word, the construction method requires that when the height of the roof parapet is less than or equal to 1.2 meters during the construction of the roof parapet. The inside and outside both sides in parapet top need increase 100mm thick concrete cornice, and when roofing parapet > 1.2 meters, the outside both sides in parapet top need increase 100mm thick concrete cornice, and the inboard 1000mm height of parapet increases 100mm thick concrete cornice. The length of cornice is: the thickness of the heat preservation plate and the thickness of the plastering layer. 50mm rock wool boards are adhered to the area, larger than or equal to 1200mm, of the inner side of the parapet wall, and the parapet wall has a protection effect on an original structure and also has a fireproof isolation belt.
The application range is as follows: it is suitable for passive residential building and passive public building with flat roof and parapet wall.
The construction process flow comprises the following steps: cleaning a base surface → spraying cold bottom oil → processing a node part → laying a male and female corner reinforcing layer → pasting steam insulation and water resistance → pasting an insulation board → 3+4mm waterproof coiled material construction → closing and fixing a waterproof layer → filling construction of a waterproof outer side insulation board under a cornice → 50mm rock wool fireproof isolation belt construction → corner protection water dripping line installation → plastering layer construction → finishing layer construction.
Cleaning a leveling layer: 1) the impurities and the laitance of the base layer are cleaned, and the leveling layer is required to be smooth. 2) The base surface should be dry and not wet during waterproofing. 3) The waterproof strengthening treatment of the joints is firstly carried out, and then the large-area waterproof layer construction is carried out. 4) And (3) checking the moisture content of the leveling layer, flatly placing (dry-laying) the coiled material with the size of 1m2 on the leveling layer, standing for 3-4 hours, then lifting and observing, and laying the waterproof layer when no water marks or water drops are found on the covering part of the leveling layer and the bottom surface of the coiled material. 5) The detailed structure and the waterproof node are reinforced, a layer of coiled material is firstly paved on the detailed structure and the waterproof node as an additional layer, and the width of the additional layer is generally 600mm according to the total width and 300mm on one side. 6) The reference line is bounced, and when the coiled material was under construction, the coiled material construction direction was confirmed according to basement plane slope size earlier, and when the plane slope was greater than 40% usually, vertical shop pasted coiled material can be adopted, generally according to horizontal shop pasting. When the coiled material is laid, the base lines are required to be popped in the sequence from low to high for laying.
Paving, and pasting, and insulating steam and water: 1) paving according to the height of the control line; 2) determining the lapping direction of the air-isolating paving according to the requirements of design drawings, the regions and the running water trend of the organization, wherein the lapping length of the long side and the short side is not less than 80-100mm, and the joints and the edges are compacted and sealed; and a chamfer angle of 45 degrees is required at the T-shaped joint. 3) The lap joint and the T-shaped joint part must be baked by a spray gun; 4) when the air temperature is low, the steam-isolating layer needs to be baked by all spray guns for auxiliary heating and pasting.
Construction of the heat insulation board: 1) PU glue is adopted between the heat preservation layer and the steam barrier layer and between the heat preservation layer and the heat preservation layer, a 4 x 2 strip method is adopted for pasting, and the strip width is not less than 20 mm. When the laminated adhesive is used, the upper, lower, left and right layers of boards should be staggered, preferably 1/3 on the long and short sides. 2) The same-layer paving and pasting boards are tightly squeezed, the gap between the boards is not more than 2mm, and the height difference is not more than 1.5 mm. The plate seam is more than 2mm and is filled by the similar heat preservation plate strips, and the plate seam is less than 2mm and is filled by PU foaming; and (5) polishing and flattening the part with the height difference larger than 1.5mm by using sand paper or a steel brush, and cleaning residues. 3) The side walls of the parapet, the equipment room, the flue and other parts need to be constructed simultaneously with the roof, and the heat insulation boards at the horizontal and vertical (side) joint need to be jogged. The heat preservation thickness of the first layer plate and the second layer plate of the side wall is the same as that of the first layer plate and the second layer plate of the roof, a plate with the height of 400mm is pasted on the first layer plate, and a plate with the height of 200mm is pasted on the second layer plate (the specific heat preservation typesetting height of the side wall is determined according to the height of the parapet in the project site and the typesetting drawing). 4) The installation of the slope finding plate needs typesetting and paying off according to a design drawing or a deepened design layout, and the slope finding plate is pasted from a low position to a high position, wherein the pasting method is the same as the method in the prior art. 5) The deepened design of the roof fireproof isolation belt is changed into parapet pasting, and the design approval is required.
Paving and pasting coiled materials: 1) the operation key points are as follows: first, the coil is unwound and aligned (film side down), then one end is rolled up, and the bottom of the coil is baked by a torch. When the film is baked until the film is melted, the bottom of the coiled material is glossy and black, and a thin melting layer is formed, the coiled material is pushed by feet and is pressed by a pedal, so that the bottom layer is stuck. After the positioning, the other end is started and the process is continued according to the method. At the interface and the joint of book and book, the overlap joint is wide 5~10cm, and the sparker is toasted the melting and is compressed tightly, and is in the same place firmly from top to bottom.
Construction attention: (1) the base surface of the paving coiled material needs to be clean, dry and flat. (2) When the heated surface is changed into a fluid surface and waves are generated, the heating is enough, special care is needed, and the baking time is not too long so as to avoid burning and damaging the tyre base. (3) When the heating and paving are pressed by foot, a small amount of mixture is preferably overflowed from the edge of the coiled material. (4) The construction site must be equipped with fire extinguishing equipment. (5) The construction site strictly prohibits smoking or use of open fire. (6) The binding material and other construction machines should be stored in a ventilated and dry state without being affected by moisture. (6) Lapping the coiled material: when the waterproof roll is laid, the lap joint of the roll is generally performed according to the long side of 100mm and the short side of 120 mm. The web seam was 100mm wide. (7) The method comprises the following steps of (1) coiled material tail end head-closing treatment and same ridge sealing treatment: the coiled materials are spread from low to high, and the final closed end of the coiled materials is usually the closed end of the highest ridge beam of the roof, so that the closed end of the tail end of the common closed end must be finished by using an adhesive. (8) And (3) lap seam caulking treatment: hot melt processes may be used.
The waterproof binding off region is located at the concrete cornice, and the insulation board is adhered to be filled after binding off is finished. 50mm rock wool fireproof isolation belts are adhered to the area above 1200mm of the parapet wall and the top of the parapet wall. And finally, carrying out plastering layer, corner protection dripping line installation and finishing coat construction.
And (3) benefit analysis: the method for manufacturing the traditional passive house roof parapet is characterized in that heat insulation plates are pasted on two sides of the parapet, and the parapet is hung with a net and plastered for construction. The top still need install aluminum plate and push up, and the inboard waterproof needs of parapet are pasted to pushing up inside fixed. Different from the traditional method, the construction method has the advantages that the heat preservation and water prevention of the inner side of the parapet wall are only achieved below the height (less than or equal to 1000 mm) of the concrete cornice, and particularly, the economic benefit is more obvious for the construction with the parapet wall being too high. Not only saves raw materials such as heat preservation and water resistance, but also reduces the capping of the aluminum plate and potential safety hazard. The cost of saving is far more than the cost increased by the concrete cornice pressing plate.
By adopting the technical scheme, the concrete roof pressing, heat insulating and waterproof construction method for the roof parapet wall has the advantages of low cost, simple, convenient and reliable waterproof and heat insulating method, good effect and long service life.
Drawings
Fig. 1-2 are schematic construction structures of a first embodiment and a second embodiment of the concrete roof-pressing, heat-insulating and waterproof construction method of the roofing parapet wall.
Detailed Description
In the first embodiment, as shown in fig. 1, the concrete-capping, heat-insulating and waterproof construction method for the parapet of the roof of the invention includes that the parapet 1 is concrete-capped to form a front cornice 11 and a rear cornice 12, steel wire mesh anti-crack mortar is nailed on the matrix surface adjacent to the parapet 1 and the roof 2 to perform cleaning and leveling on the anti-crack mortar surface and other matrix surfaces, and a steam-insulating and waterproof layer is laid on the matrix surface; the rock wool board fireproof isolation belt 10 and the corner protection assembly line 13 are adhered on the concrete cornice with the steam-proof and waterproof layer and the concrete coping surface of the parapet 1; the front vertical concave area of the parapet 1 provided with a steam-isolating waterproof layer is filled with two layers of front vertical face heat-insulating plates 3 which are bonded and anchored, an inner reinforcing steel bar net fine stone concrete layer 24 is arranged on the adjacent roof steam-isolating waterproof layer after a high-density heat-insulating plate 21 close to a roof slope is arranged, and steam-isolating coiled materials 5 are arranged on the middle lower part of the rear vertical face of the parapet 1 provided with the steam-isolating waterproof layer and the surface of the inner reinforcing steel bar net fine stone concrete layer 24; an adjacent roof slope-finding heat-insulation waterproof layer is arranged on the steam-insulation coiled material 5 of the adjacent roof 2, a rear vertical face lower heat-insulation plate 41, a top face and a footing high-density heat-insulation plate slope corner-supplementing block are arranged at the lower part of the rear vertical face of the parapet 1 provided with the steam-insulation waterproof layer, the rear vertical face lower heat-insulation plate 41, the corner-supplementing block, the upper part of the rear vertical face of the parapet, the bottom self-adhesion waterproof coiled material 22 of the adjacent area and the surface of the adjacent roof 2 high-density heat-insulation plate 20 are provided with a modified asphalt waterproof coiled material 5, and a vertical concave area at the rear side of the modified asphalt waterproof coiled material 5 at the upper part of the rear vertical face of the parapet 1 is leveled by the rear vertical face upper heat-insulation plate 42; and a fine stone concrete protective layer 6 and a decorative surface layer 7 are arranged on the surfaces of the constructed parapet wall 1 and the adjacent roof 2. The high-density heat-insulation board is a high-density EPS heat-insulation board with the thickness of 300 mm. The front vertical face heat insulation board, the rear vertical face lower heat insulation board and the rear vertical face upper heat insulation board are rock wool heat insulation boards or graphite extrusion molding benzene heat insulation boards. Has the advantages of low cost, simple and reliable waterproof and heat-insulating method and long service life.
The adjacent roof slope finding heat preservation waterproof layer is formed by paving a double-layer staggered joint high-density heat preservation plate 20 and an adjacent area bottom layer self-adhesion waterproof coiled material 22 on a steam insulation coiled material 5 of an adjacent roof. The thickness of the slope-finding high-density heat-insulation board 21 is gradually reduced from the far end to the near end of the parapet wall. The stone concrete protective layer 6 and the decorative surface layer 7 are the fine stone concrete protective layer 6 provided with the steel wire mesh firstly, and then the decorative surface layer 7 is arranged. The decorative surface layer 7 is an outer wall coating layer. Two layers of front elevation heat-insulation boards 3 are bonded in front vertical concave areas of the parapet 1 provided with the steam-insulation waterproof layer, and then are fixed by bridge-cut-off heat-insulation expansion anchor bolts, so that the front elevation of the outer layer front elevation heat-insulation board 3 is vertically flush with the front elevation of the steam-insulation waterproof layer of the top front cornice 11. The rear vertical surface of the rear vertical surface upper heat insulation plate 42 is vertically flush with the rear vertical surface of the modified asphalt waterproof coiled material 5 of the rear vertical surface lower heat insulation plate 41 and the rear vertical surface of the steam-proof waterproof layer of the concrete top rear cornice 12. The top surface and footing high-density insulation board inclined plane corner supplementing blocks are right-angle slope surface corner supplementing blocks, the cross sections of the footing right-angle slope surface corner supplementing blocks 72 are isosceles right triangles, and the cross sections of the top surface right-angle slope surface corner supplementing blocks 71 are unequal waist right triangles with upper bottom angles larger than two times of outer bottom angles.
The top edge of the modified asphalt waterproof coiled material 5 and the upper end of the rear vertical surface of the parapet wall 1 are closed and fixed by a pressing strip; the corner protection water line strips 13 are multifunctional corner protection water line strips 13 arranged at the convex angle part and the adjacent joint part of the corner and the cornice steam-insulation waterproof layer of the rock wool board; the sealing strip closing-in fixation is that the top edge of the modified asphalt waterproof coiled material 5 and the upper end of the rear vertical surface of the parapet wall 1 are closed by a steel sealing strip 51 and fixed by an expansion steel bolt.
The top surface of the parapet 1 with the height less than or equal to 1200mm is provided with a flat-top parapet concrete cornice pressing top with front and back cornices, the upper end surface of the flat-top parapet concrete cornice pressing top is cleaned and leveled, and the rock wool board fireproof isolation belt 10 is adhered after the steam-proof waterproof layer is paved.
A multifunctional corner protection flow line 13 is arranged between the outer side end of the rock wool board fireproof isolation belt 10 for the top-hat parapet concrete cornice coping and the side end face of the lower adjacent top-hat steam-proof water-proof layer.
The step of cleaning and leveling comprises 1) cleaning up sundries and laitance of a base surface and leveling the base surface by using leveling mortar; 2) ensuring that the base surface is dry; 3) performing waterproof strengthening treatment on the nodes; paving a layer of coiled material at the waterproof node part as an additional layer or paving a layer of coiled material as an additional layer after the waterproof node part is nailed with a steel wire mesh and is smeared with anti-crack mortar for reinforcement; and then supplementary leveling is carried out according to the requirement;
the laying and pasting of the steam-insulation waterproof layer determines the lapping direction of the air-insulation laying and pasting according to the running direction, the lapping length of the long side and the short side is not less than 80-100mm, and the joint seam and the edge closing part need to be compacted and sealed; a chamfer angle of 45 degrees is required to be made at the T-shaped joint; the lap joint and the T-shaped joint part must be baked by a spray gun; when the air temperature is low, the steam-isolating layer needs to be baked by all spray guns for auxiliary heating and pasting.
Construction of the heat insulation board: 1) PU glue is adopted between the heat preservation layer and the steam barrier layer, and between the heat preservation layer and the heat preservation layer, a 4 x 2 strip method is adopted for pasting, and the strip width is not less than 20 mm; when the laminated adhesive is used for laminating, the upper layer plate, the lower layer plate, the left layer plate and the right layer plate are staggered, and the long sides and the short sides are preferably staggered 1/3 respectively; 2) the paving and pasting boards on the same layer are tightly squeezed, the gap between the boards is not more than 2mm, and the height difference is not more than 1.5 mm; the plate seam is more than 2mm and is filled by the similar heat preservation plate strips, and the plate seam is less than 2mm and is filled by PU foaming; polishing and flattening the materials with the height difference of more than 1.5mm by using sand paper or a steel brush, and cleaning residues; 3) the side wall of the parapet wall part needs to be constructed simultaneously with the roof, and the heat insulation boards at the joint of the flat side and the vertical side need to be in split joint; the heat insulation thickness of the first and second layer plates of the side wall is the same as that of the first and second layers of the roof; 4) the slope finding plate is stuck from a low position to a high position.
Paving and pasting coiled materials: the operation key points are as follows: firstly, uncoiling the coiled material, aligning the coiled material with the thin film surface facing downwards, then rolling up one end, and baking the bottom surface of the coiled material by using a flame thrower; when the film is baked until the film is melted, the bottom of the coiled material is glossy and black, and a thin melting layer is formed, pushing the coiled material by feet to press the coiled material to stick the bottom layer; after positioning, starting the other end, and continuing the method; overlapping the joint and the joint of the coil and the coil by 5-10 cm in width, baking and melting by a flame thrower, then pressing tightly, and firmly combining the coil and the joint together from top to bottom; paving the coiled material from low to high; when the baking is carried out, the heating is uniform, and when the heated surface is changed into a fluid surface to generate a wave, the heating is enough; when the heating and paving are pressed by foot, a small amount of mixture is preferably overflowed from the edge of the coiled material.
The method for checking the dryness degree of the base surface after leveling comprises the following steps: 1m is2The large and small coiled materials are laid on the leveling layer in a dry mode, the coiled materials are lifted and observed after standing for 3 to 4 hours, no water marks or water drops are found on the covering part of the leveling layer and the bottom surface of the coiled materials, and the drying degree meets the requirement.
Second embodiment, as shown in fig. 2, the difference between the concrete roof-pressing, heat-insulating and waterproof construction method for parapet roofing of the present invention and the first embodiment is only that: the top surface of the parapet 1 with the height more than or equal to 1200mm is provided with a front top cornice 11 and a back top lower cornice 14, the upper end surface of the front top parapet concrete cornice and the upper end surface of the back side surface of the back top parapet and the top lower cornice 14 are cleaned, leveled and paved with a vapor-proof waterproof layer, and then the rock wool board fireproof isolation belt 10 is adhered. The vertical distance between the lower part of the concrete cornice 14 below the rear top and the lowest part of the modified asphalt waterproof coiled material 22 is more than or equal to 1000 mm.
The multifunctional corner protection flow line 13 is arranged between the outer end of the top rock wool board fireproof isolation belt 10 subjected to cornice pressing on the top parapet concrete and the side end face of the lower adjacent top cornice steam-insulation waterproof layer, the multifunctional corner protection flow line 13 is arranged at the rear end of the top rock wool board fireproof isolation belt 10 subjected to cornice pressing on the top parapet concrete, the multifunctional corner protection flow line 13 is arranged between the side end face of the rear rock wool board fireproof isolation belt 10 subjected to cornice pressing on the top parapet concrete and the side face of the adjacent parapet steam-insulation waterproof layer, and the multifunctional corner protection flow line 13 is arranged between the rock wool board fireproof isolation belt 10 on the upper cornice 14 below the rear top and the rear end face of the lower cornice 14 steam-insulation waterproof layer below the adjacent rear top.
In a word, the construction method requires that when the height of the roof parapet is less than or equal to 1.2 meters during the construction of the roof parapet. The inside and outside both sides in parapet top need increase 100mm thick concrete cornice, and when roofing parapet > 1.2 meters, the outside both sides in parapet top need increase 100mm thick concrete cornice, and the inboard 1000mm height of parapet increases 100mm thick concrete cornice. The length of cornice is: the thickness of the heat preservation plate and the thickness of the plastering layer. 50mm rock wool boards are adhered to the area, larger than or equal to 1200mm, of the inner side of the parapet wall, and the parapet wall has a protection effect on an original structure and also has a fireproof isolation belt.
The application range is as follows: it is suitable for passive residential building and passive public building with flat roof and parapet wall.
The construction process flow comprises the following steps: cleaning a base surface → spraying cold bottom oil → processing a node part → laying a male and female corner reinforcing layer → pasting steam insulation and water resistance → pasting an insulation board → 3+4mm waterproof coiled material construction → closing and fixing a waterproof layer → filling construction of a waterproof outer side insulation board under a cornice → 50mm rock wool fireproof isolation belt construction → corner protection water dripping line installation → plastering layer construction → finishing layer construction.
Cleaning a leveling layer: 1) the impurities and the laitance of the base layer are cleaned, and the leveling layer is required to be smooth. 2) The base surface should be dry and not wet during waterproofing. 3) The waterproof strengthening treatment of the joints is firstly carried out, and then the large-area waterproof layer construction is carried out. 4) And (3) checking the moisture content of the leveling layer, flatly placing (dry-laying) the coiled material with the size of 1m2 on the leveling layer, standing for 3-4 hours, then lifting and observing, and laying the waterproof layer when no water marks or water drops are found on the covering part of the leveling layer and the bottom surface of the coiled material. 5) The detailed structure and the waterproof node are reinforced, a layer of coiled material is firstly paved on the detailed structure and the waterproof node as an additional layer, and the width of the additional layer is generally 600mm according to the total width and 300mm on one side. 6) The reference line is bounced, and when the coiled material was under construction, the coiled material construction direction was confirmed according to basement plane slope size earlier, and when the plane slope was greater than 40% usually, vertical shop pasted coiled material can be adopted, generally according to horizontal shop pasting. When the coiled material is laid, the base lines are required to be popped in the sequence from low to high for laying.
Paving, and pasting, and insulating steam and water: 1) paving according to the height of the control line; 2) determining the lapping direction of the air-isolating paving according to the requirements of design drawings, the regions and the running water trend of the organization, wherein the lapping length of the long side and the short side is not less than 80-100mm, and the joints and the edges are compacted and sealed; and a chamfer angle of 45 degrees is required at the T-shaped joint. 3) The lap joint and the T-shaped joint part must be baked by a spray gun; 4) when the air temperature is low, the steam-isolating layer needs to be baked by all spray guns for auxiliary heating and pasting.
Construction of the heat insulation board: 1) PU glue is adopted between the heat preservation layer and the steam barrier layer and between the heat preservation layer and the heat preservation layer, a 4 x 2 strip method is adopted for pasting, and the strip width is not less than 20 mm. When the laminated adhesive is used, the upper, lower, left and right layers of boards should be staggered, preferably 1/3 on the long and short sides. 2) The same-layer paving and pasting boards are tightly squeezed, the gap between the boards is not more than 2mm, and the height difference is not more than 1.5 mm. The plate seam is more than 2mm and is filled by the similar heat preservation plate strips, and the plate seam is less than 2mm and is filled by PU foaming; and (5) polishing and flattening the part with the height difference larger than 1.5mm by using sand paper or a steel brush, and cleaning residues. 3) The side walls of the parapet, the equipment room, the flue and other parts need to be constructed simultaneously with the roof, and the heat insulation boards at the horizontal and vertical (side) joint need to be jogged. The heat preservation thickness of the first layer plate and the second layer plate of the side wall is the same as that of the first layer plate and the second layer plate of the roof, a plate with the height of 400mm is pasted on the first layer plate, and a plate with the height of 200mm is pasted on the second layer plate (the specific heat preservation typesetting height of the side wall is determined according to the height of the parapet in the project site and the typesetting drawing). 4) The installation of the slope finding plate needs typesetting and paying off according to a design drawing or a deepened design layout, and the slope finding plate is pasted from a low position to a high position, wherein the pasting method is the same as the method in the prior art. 5) The deepened design of the roof fireproof isolation belt is changed into parapet pasting, and the design approval is required.
Paving and pasting coiled materials: 1) the operation key points are as follows: first, the coil is unwound and aligned (film side down), then one end is rolled up, and the bottom of the coil is baked by a torch. When the film is baked until the film is melted, the bottom of the coiled material is glossy and black, and a thin melting layer is formed, the coiled material is pushed by feet and is pressed by a pedal, so that the bottom layer is stuck. After the positioning, the other end is started and the process is continued according to the method. At the interface and the joint of book and book, the overlap joint is wide 5~10cm, and the sparker is toasted the melting and is compressed tightly, and is in the same place firmly from top to bottom.
Construction attention: (1) the base surface of the paving coiled material needs to be clean, dry and flat. (2) When the heated surface is changed into a fluid surface and waves are generated, the heating is enough, special care is needed, and the baking time is not too long so as to avoid burning and damaging the tyre base. (3) When the heating and paving are pressed by foot, a small amount of mixture is preferably overflowed from the edge of the coiled material. (4) The construction site must be equipped with fire extinguishing equipment. (5) The construction site strictly prohibits smoking or use of open fire. (6) The binding material and other construction machines should be stored in a ventilated and dry state without being affected by moisture. (6) Lapping the coiled material: when the waterproof roll is laid, the lap joint of the roll is generally performed according to the long side of 100mm and the short side of 120 mm. The web seam was 100mm wide. (7) The method comprises the following steps of (1) coiled material tail end head-closing treatment and same ridge sealing treatment: the coiled materials are spread from low to high, and the final closed end of the coiled materials is usually the closed end of the highest ridge beam of the roof, so that the closed end of the tail end of the common closed end must be finished by using an adhesive. (8) And (3) lap seam caulking treatment: hot melt processes may be used.
The waterproof binding off region is located at the concrete cornice, and the insulation board is adhered to be filled after binding off is finished. 50mm rock wool fireproof isolation belts are adhered to the area above 1200mm of the parapet wall and the top of the parapet wall. And finally, carrying out plastering layer, corner protection dripping line installation and finishing coat construction.
And (3) benefit analysis: the method for manufacturing the traditional passive house roof parapet is characterized in that heat insulation plates are pasted on two sides of the parapet, and the parapet is hung with a net and plastered for construction. The top still need install aluminum plate and push up, and the inboard waterproof needs of parapet are pasted to pushing up inside fixed. Different from the traditional method, the construction method has the advantages that the heat preservation and water prevention of the inner side of the parapet wall are only achieved below the height (less than or equal to 1000 mm) of the concrete cornice, and particularly, the economic benefit is more obvious for the construction with the parapet wall being too high. Not only saves raw materials such as heat preservation and water resistance, but also reduces the capping of the aluminum plate and potential safety hazard. The cost of saving is far more than the cost increased by the concrete cornice pressing plate.
By adopting the technical scheme, the concrete roof pressing, heat insulating and waterproof construction method for the roof parapet wall has the advantages of low cost, simple, convenient and reliable waterproof and heat insulating method, good effect and long service life.
Claims (10)
1. A roof parapet concrete coping heat preservation waterproof construction method is characterized in that after the concrete coping parapet goes out of concrete, the cornice and the cornice before the concrete coping are carried out, steel wire mesh anti-crack mortar is nailed on the matrix surface of the parapet adjacent to the roof and is plastered, the plastering of the anti-crack mortar and other matrix surfaces are cleaned and leveled, and a steam-proof waterproof layer is laid; rock wool boards and corner protection assembly lines are adhered on the concrete cornice with the steam-isolating waterproof layer and the concrete coping surface of the parapet wall between the concrete cornice and the parapet wall; the front vertical concave area of the parapet wall provided with the steam-isolating waterproof layer is filled with two layers of front vertical face heat-insulating plates which are bonded and anchored, an inner reinforced net fine stone concrete layer is arranged on the upper surface of the adjacent roof steam-isolating waterproof layer after the high-density heat-insulating plate close to the roof slope is arranged, and steam-isolating coiled materials are arranged on the middle lower part of the rear vertical face of the parapet wall provided with the steam-isolating waterproof layer and the surface of the inner reinforced net fine stone concrete layer; an adjacent roof slope-finding heat-insulating waterproof layer is arranged on the steam-insulating coiled material of the adjacent roof; the middle lower part of the rear vertical face of the parapet provided with the steam-isolating waterproof layer is provided with a rear vertical face lower insulation board, a top surface and footing high-density insulation board inclined plane corner supplementing block, the rear vertical face lower insulation board, the corner supplementing block, the upper part of the rear vertical face of the parapet, the bottom self-adhesive waterproof coiled material of the adjacent area and the adjacent roof surface high-density insulation board are provided with modified asphalt waterproof coiled materials, and the vertical concave area on the rear side of the modified asphalt waterproof coiled material layer on the upper part of the rear vertical face of the parapet is leveled up by the rear vertical face upper insulation board; and a fine stone concrete protective layer and a decorative surface layer are arranged on the constructed parapet and the adjacent roof surface.
2. The roof parapet concrete roof-pressing heat-insulating waterproof construction method according to claim 1, wherein the adjacent roof slope-finding heat-insulating waterproof layer is formed by laying double-layer staggered joint high-density heat-insulating plates and adjacent-connection-area bottom-layer self-adhesive waterproof coiled materials on steam-insulating coiled materials of adjacent roofs.
3. The concrete roof parapet heat-insulating waterproof construction method as claimed in claim 1, wherein the thickness of the slope-seeking high-density heat-insulating plate gradually decreases from the far end to the near end of the parapet.
4. The roof parapet concrete roof-pressing heat-insulating waterproof construction method according to claim 1, characterized in that the stone concrete protective layer and the decorative surface layer are a fine stone concrete protective layer provided with a steel wire mesh first and then a decorative surface layer.
5. The roof parapet concrete roof pressing, heat insulating and waterproof construction method according to claim 1, characterized in that the front vertical concave area of the parapet provided with the steam-proof and waterproof layer is fixed by bonding two layers of front vertical face heat-insulating boards and then by using a bridge-cut heat-insulating expansion anchor bolt, and the front vertical face of the outer layer front vertical face heat-insulating board is vertically aligned with the front vertical face of the steam-proof and waterproof layer of the top front cornice.
6. The concrete roof parapet concrete roof-pressing, heat-insulating and waterproof construction method according to claim 1, characterized in that the rear vertical surface of the heat-insulating plate on the rear vertical surface is vertically flush with the rear vertical surface of the modified asphalt waterproof roll material of the heat-insulating plate under the rear vertical surface and the rear vertical surface of the steam-insulating and waterproof layer of the rear cornice.
7. The concrete roof parapet concrete roof-pressing, heat-insulating and waterproof construction method as claimed in claim 1, wherein the top surface and bottom high-density heat-insulating plate slope corner-supplementing blocks are right-angled slope corner-supplementing blocks, the cross sections of the bottom right-angled slope corner-supplementing blocks are isosceles right triangles, and the cross sections of the top surface right-angled slope corner-supplementing blocks are unequal waist right triangles with the upper bottom angle being greater than two times the outer side bottom angle.
8. The roof parapet concrete roof-pressing heat-insulating waterproof construction method according to claim 1, characterized in that the top edge of the modified asphalt waterproof roll and the upper end of the rear vertical surface of the parapet are fixed by closing with a pressing strip; the corner protection water line is a multifunctional corner protection water line arranged at the convex angle part and the adjacent joint part of the corner and the cornice steam-insulation waterproof layer of the rock wool board;
setting a flat-top parapet wall concrete cornice pressing top with front and back cornices on the top surface of the parapet wall with the height less than or equal to 1200mm, cleaning and leveling the upper end surface of the flat-top parapet wall concrete cornice pressing top, paving a steam-proof waterproof layer, and then adhering a rock wool board fireproof isolation belt; the top surface of the parapet wall with the height more than or equal to 1200mm is provided with a front top cornice and a back top lower cornice turning parapet concrete cornice pressing top, the upper end surface of the front top cornice pressing top, the back side surface of the back top parapet wall and the upper end surface of the back top lower concrete cornice are cleaned and leveled, and the rock wool board fireproof isolation belt is adhered after the steam-proof waterproof layer is paved.
9. The concrete roof parapet concrete roof pressing, heat insulating and waterproof construction method according to claim 8, characterized in that the bead closing-in fixation is performed by closing in the top edge of the modified asphalt waterproof roll and the upper end of the rear vertical surface of the parapet with a steel bead and fixing with a steel bolt;
multifunctional corner protection flow lines are arranged between the outer end face of the fireproof isolation belt of the rock wool board for the top-hat parapet concrete cornice coping and the end face of the lower adjacent top cornice steam-isolation waterproof layer; the multifunctional angle bead flow line is arranged between the outer end face of the top rock wool board fireproof isolation belt subjected to cornice pressing on the top parapet wall concrete and the side end face of the steam-insulation waterproof layer subjected to cornice pressing on the lower adjacent top, the rear end face of the top rock wool board fireproof isolation belt subjected to cornice pressing on the top parapet wall concrete is provided with the multifunctional angle bead flow line, the multifunctional angle bead flow line is arranged between the side end face of the rear rock wool board fireproof isolation belt subjected to cornice pressing on the top parapet wall concrete and the side face of the steam-insulation waterproof layer subjected to adjacent parapet wall, and the multifunctional angle bead flow line is arranged between the rock wool board fireproof isolation belt subjected to cornice pressing on the lower top of the rear top and the rear end face of the steam-insulation waterproof layer subjected to cornice pressing on the lower side of the adjacent rear top.
10. The concrete roof parapet construction method for roof pressing, heat preservation and water prevention according to any one of claims 1 to 9, characterized in that the step of cleaning and leveling comprises 1) cleaning up the base surface sundries and the laitance, and processing and leveling with leveling mortar; 2) ensuring that the base surface is dry; 3) performing waterproof strengthening treatment on the nodes; paving a layer of coiled material at the waterproof node part as an additional layer or paving a layer of coiled material as an additional layer after the waterproof node part is nailed with a steel wire mesh and is smeared with anti-crack mortar for reinforcement; and then supplementary leveling is carried out according to the requirement;
the laying and pasting of the steam-insulation waterproof layer determines the lapping direction of the air-insulation laying and pasting according to the running direction, the lapping length of the long side and the short side is not less than 80-100mm, and the joint seam and the edge closing part need to be compacted and sealed; a chamfer angle of 45 degrees is required to be made at the T-shaped joint; the lap joint and the T-shaped joint part must be baked by a spray gun; when the air temperature is low, the steam-isolating layer needs to be baked by all spray guns for auxiliary heating and pasting;
construction of the heat insulation board: 1) PU glue is adopted between the heat preservation layer and the steam barrier layer, and between the heat preservation layer and the heat preservation layer, a 4 x 2 strip method is adopted for pasting, and the strip width is not less than 20 mm; when the laminated adhesive is used for laminating, the upper layer plate, the lower layer plate, the left layer plate and the right layer plate are staggered, and the long sides and the short sides are preferably staggered 1/3 respectively; 2) the paving and pasting boards on the same layer are tightly squeezed, the gap between the boards is not more than 2mm, and the height difference is not more than 1.5 mm; the plate seam is more than 2mm and is filled by the similar heat preservation plate strips, and the plate seam is less than 2mm and is filled by PU foaming; polishing and flattening the materials with the height difference of more than 1.5mm by using sand paper or a steel brush, and cleaning residues; 3) the side wall of the parapet wall part needs to be constructed simultaneously with the roof, and the heat insulation boards at the joint of the flat side and the vertical side need to be in split joint; the heat insulation thickness of the first and second layer plates of the side wall is the same as that of the first and second layers of the roof; 4) the slope finding plate is stuck from a low position to a high position;
paving and pasting coiled materials: the operation key points are as follows: firstly, uncoiling the coiled material, aligning the coiled material with the thin film surface facing downwards, then rolling up one end, and baking the bottom surface of the coiled material by using a flame thrower; when the film is baked until the film is melted, the bottom of the coiled material is glossy and black, and a thin melting layer is formed, pushing the coiled material by feet to press the coiled material to stick the bottom layer; after positioning, starting the other end, and continuing the method; overlapping the joint and the joint of the coil and the coil by 5-10 cm in width, baking and melting by a flame thrower, then pressing tightly, and firmly combining the coil and the joint together from top to bottom; paving the coiled material from low to high; when the baking is carried out, the heating is uniform, and when the heated surface is changed into a fluid surface to generate a wave, the heating is enough; when the heating and paving are pressed by foot, a small amount of mixture is preferably overflowed from the edge of the coiled material.
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| CN114908903A (en) * | 2022-03-14 | 2022-08-16 | 中建二局装饰工程有限公司 | A curtain wall in northern Shaanxi style |
| CN115467474A (en) * | 2022-10-08 | 2022-12-13 | 中建八局第二建设有限公司 | A method of waterproofing and heat preservation of the roof under the ultra-thick heat preservation system |
| CN119321207A (en) * | 2024-12-18 | 2025-01-17 | 浙江润方建设有限公司 | Construction method for rigid waterproof roof |
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| CN114718250A (en) * | 2022-03-14 | 2022-07-08 | 中建二局装饰工程有限公司 | an antique building |
| CN114908903A (en) * | 2022-03-14 | 2022-08-16 | 中建二局装饰工程有限公司 | A curtain wall in northern Shaanxi style |
| CN115467474A (en) * | 2022-10-08 | 2022-12-13 | 中建八局第二建设有限公司 | A method of waterproofing and heat preservation of the roof under the ultra-thick heat preservation system |
| CN115467474B (en) * | 2022-10-08 | 2024-05-07 | 中建八局第二建设有限公司 | A waterproof and thermal insulation method for roof base under super thick thermal insulation system |
| CN119321207A (en) * | 2024-12-18 | 2025-01-17 | 浙江润方建设有限公司 | Construction method for rigid waterproof roof |
| CN119321207B (en) * | 2024-12-18 | 2025-03-18 | 浙江润方建设有限公司 | Construction method for rigid waterproof roof |
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Application publication date: 20220104 |