CN116905747A - External wall heat preservation construction method - Google Patents
External wall heat preservation construction method Download PDFInfo
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- CN116905747A CN116905747A CN202310732251.8A CN202310732251A CN116905747A CN 116905747 A CN116905747 A CN 116905747A CN 202310732251 A CN202310732251 A CN 202310732251A CN 116905747 A CN116905747 A CN 116905747A
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- external wall
- heat preservation
- heat
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- 238000004321 preservation Methods 0.000 title claims abstract description 34
- 238000010276 construction Methods 0.000 title claims abstract description 25
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- 239000004744 fabric Substances 0.000 claims abstract description 32
- 238000009413 insulation Methods 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 23
- 238000004873 anchoring Methods 0.000 claims abstract description 20
- 229920000642 polymer Polymers 0.000 claims abstract description 7
- 230000001680 brushing effect Effects 0.000 claims abstract description 6
- 239000011490 mineral wool Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 10
- 239000010439 graphite Substances 0.000 claims description 8
- 229910002804 graphite Inorganic materials 0.000 claims description 8
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 239000004793 Polystyrene Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000005034 decoration Methods 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 241001391944 Commicarpus scandens Species 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 25
- 230000000694 effects Effects 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
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- 238000010586 diagram Methods 0.000 description 4
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- 238000009407 construction method and process Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
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- 230000008020 evaporation Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
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- 238000009432 framing Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/072—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of specially adapted, structured or shaped covering or lining elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/002—Coverings or linings, e.g. for walls or ceilings made of webs, e.g. of fabrics, or wallpaper, used as coverings or linings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0801—Separate fastening elements
- E04F13/0803—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0885—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements specially adapted for being adhesively fixed to the wall; Fastening means therefor; Fixing by means of plastics materials hardening after application
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
- Building Environments (AREA)
Abstract
The invention discloses an external wall heat preservation construction method, and relates to the technical field of external wall heat preservation; the method comprises the steps of firstly, performing base layer treatment on the surface of an external wall body; step two, measuring and paying off the outer wall body; step three, preparing a polymer adhesive; brushing an adhesive, and pasting an insulation board; step five, installing an anchoring piece; step six, fireproof treatment and pasting of mesh cloth; and seventhly, repairing holes and repairing. The heat-insulating layer can be effectively prevented from being corroded by different climates, the service life of the heat-insulating layer is prolonged, and the long-term effective heat-insulating function of the building is ensured; in addition, the construction mode can enable the heat insulation board to be tightly connected with the surface of the wall body, and is not easy to break away, so that the risk of falling objects at high altitude is prevented, and the safety is improved.
Description
Technical Field
The invention relates to the technical field of external wall heat preservation, in particular to an external wall heat preservation construction method.
Background
Because people realize energy conservation and environmental protection, achieve the aim of preventing and controlling the atmospheric pollution about carbon peak and carbon neutralization, a large amount of energy-saving materials are adopted in the building industry, and heat preservation treatment is carried out on the building outer wall, so that the temperature inside the building is ensured to be maintained.
The heat preservation of the outer wall is always a key point and a difficult point in construction, after the construction of the main body of the wall is finished, the construction of the heat preservation of the outer wall is needed to be carried out on the base layer wall, in the process of the heat preservation of the outer wall, different heat preservation boards, different construction methods and processes can have different influences on the heat preservation of the outer wall, but aiming at different heat preservation materials, different construction methods and processes bring different heat preservation effects, and in recent years, how to improve the heat preservation effect of the outer wall by optimizing the construction method is always a great importance in the research of the heat preservation of the outer wall;
meanwhile, the existing wall heat preservation construction engineering has poor heat preservation effect and cracking of the external facing of the wall heat preservation layer after different weather influences, such as high temperature and rain erosion. Not only the wall body loses the heat preservation function, but also the risk of falling objects at high altitude is easy to occur. Therefore, we provide an external wall heat preservation construction method.
Disclosure of Invention
The invention aims to provide an external wall heat preservation construction method.
The invention can be realized by the following technical scheme: the external wall heat preservation construction method comprises the following steps:
step one, performing basic layer treatment on the surface of an external wall body;
step two, measuring and paying off the outer wall body;
step three, preparing a polymer adhesive;
brushing an adhesive, and pasting an insulation board;
step five, installing an anchoring piece;
step six, fireproof treatment and pasting of mesh cloth;
and seventhly, repairing holes and repairing.
The invention further technically improves that: in the first step, the base layer treatment comprises the treatment of the surface dirt of the outer wall body and the flatness treatment, in the flatness treatment, when the thickness deviation of the local wall body is not more than 4mm, the excessive part is chiseled, and the sunken part is repaired and leveled by adopting mortar with the mass ratio of 1:3.
The invention further technically improves that: and step two, measuring pay-off specifically comprises the steps of snapping lines at the positions of doors and windows and the large-angle position of the outer wall, arranging deformation lines and decoration lines, arranging control horizontal lines at the position 20-25 mm above scattered water, and installing metal brackets on every four layers of the outer wall.
The invention further technically improves that: and fourthly, determining different adhesive brushing modes according to different material types of the selected heat-insulating boards, and pasting the heat-insulating boards by adopting a sequence laid from bottom to top in the horizontal direction, wherein the length or the interval of one half of the boards in the vertical joint staggered joint between adjacent rows is more than 200 mm.
The invention further technically improves that: the heat preservation board is one of a homogeneous board, a rock wool board and a graphite polyphenyl board:
the homogenizing plate adopts a full-bonding method, the glue coating area is 100%, and the glue coating thickness is 8-10 mm;
the rock wool board adopts a point frame method, a peripheral area of the outer edge of the rock wool board is coated with glue, the thickness of the glue is not less than 20mm, and the area of a bonding point at the middle position is circular with the diameter not less than 150 mm;
the graphite polyphenyl board adopts a strip frame method, a plurality of adhesive strips are uniformly coated in the horizontal direction, the width of the adhesive strips is 10mm, the thickness is 10mm, and the interval is 50mm.
The invention further technically improves that: in the fifth step, the number of the anchors is determined according to the floor height and the properties of the base layer, and the number of the anchors per square meter is not less than 6;
the anchoring depth of the anchoring piece is not less than 50mm from the concrete base layer and not less than 100mm from the building block base layer.
The invention further technically improves that: and the number of the anchoring parts is correspondingly increased at the positions of the external corner, the door opening and the window opening, the distance between the two anchoring parts is not more than 300mm, and the anchoring depth concrete base layer is not less than 60mm.
The invention further technically improves that: in the sixth step, the fireproof treatment is specifically to set a thick rock wool double-sided composite board with the height of 25-35 mm to be used as a fireproof isolation belt.
The invention further technically improves that: step six, when the grid cloth is stuck, the exposed part of the side edge of the heat-insulating plate is subjected to grid cloth overturning treatment, and when in lap joint, the upper and lower staggered joints are required to be 1000mm, and the lap joint width is not less than 100mm; the grid cloth on two sides is kept continuous at the corner part when the yin and yang angle is formed, and the grid cloth can be stopped only by rotating the corner part to the other side by more than 200 mm.
Compared with the prior art, the invention has the following beneficial effects:
the construction method can effectively prevent the heat preservation layer from being corroded by different climates, prolong the service life of the heat preservation layer and ensure the long-term effectiveness of the heat preservation function of the building; in addition, the construction mode can enable the heat insulation board to be tightly connected with the surface of the wall body, and is not easy to break away, so that the risk of falling objects at high altitude is prevented, and the safety is improved.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic illustration of a construction flow of the present invention;
FIG. 2 is a schematic diagram of a strip framing construction of the present invention;
FIG. 3 is a schematic diagram of a typesetting construction structure of an insulation board of the invention;
FIG. 4 is a schematic view of the anchor mounting structure of the present invention;
fig. 5 is a schematic diagram of the door and window opening mesh cloth mounting construction in the invention.
Detailed Description
In order to further describe the technical means and effects adopted by the invention for achieving the preset aim, the following detailed description is given below of the specific implementation, structure, characteristics and effects according to the invention with reference to the attached drawings and the preferred embodiment.
Referring to fig. 1-5, an external wall heat insulation construction method mainly comprises the following steps:
step one, performing basic layer treatment on the surface of an external wall body;
step two, measuring and paying off the outer wall body;
step three, preparing a polymer adhesive;
brushing an adhesive, and pasting an insulation board;
step five, installing an anchoring piece;
step six, fireproof treatment and pasting of mesh cloth;
step seven, hole repairing and repairing;
specifically, in the first step, surface factors which influence the bonding strength, such as surface floating ash, paint oil stains, release agents, mould algae and the like of the outer wall body are treated;
then checking the thickness uniformity of the wall body, and checking whether the wall body has a dent or bulge by using a guiding rule; when the thickness deviation of the local wall body is not more than 4mm, chiseling the exceeding part, and repairing and flattening the sunken part by adopting cement mortar with the mass ratio of 1:3;
if the thickness of the local leveling layer is thinner, when construction is difficult by using common cement mortar, the polymer cement mortar is used for leveling;
in the second step, according to the design of the outer wall surface of the building, horizontal and vertical control lines, telescopic stitching lines and decoration lines of the outer door and window are popped up on the wall surface by using ink fountain lines;
hanging a vertical datum line at a large angle (an internal angle and an external angle) of an external wall of the building, and hanging a horizontal line at a set position of each floor to control the verticality and flatness of a subsequent heat-preserving plate;
installing a metal bracket on each four layers of the building outer wall from the first layer, wherein the distance between the installation expansion screws of the metal brackets is less than or equal to 50cm; specifically, the expansion screw for fixing the metal bracket has the specification of M10 and all the expansion screws must be fixed on the base concrete wall;
ejecting a control horizontal line from 20-25 mm above the water by using an ink duct line, mounting a galvanized angle steel bracket at 600-700 mm above the water, and carrying out heat preservation treatment on the position below the bracket by using inorganic heat preservation mortar or graphite polyphenyl plates;
the expansion joint is one of the deformation joints, each layer of the horizontal deformation joint is provided with one layer, and the position of the expansion joint is at the same height with the elevation position of the floor; the wall surface is not arranged at the turning position or the concave-convex position of the wall surface, the width of the deformation joint is 20mm, a polyethylene foam rod is embedded in the back lining of the deformation joint, and weather-proof waterproof sealant is adopted for waterproof sealing;
in the third step, the polymer adhesive adopts the following blending proportion, the adhesive is powdery, and the weight ratio is that: water=1:0.25, and uniformly stirring in a mechanical mode for a period of not less than 3 minutes; it should be noted that the prepared polymer adhesive should be stored in a cool place and used up within 2 hours, otherwise, the polymer adhesive will fail due to evaporation of water;
in the fourth step, a standard heat-insulating board with a certain specification is adopted, and the heat-insulating material board is one of a graphite polyphenyl board, a homogeneous board and a rock wool board, which are different in cost, flame retardance and heat-insulating performance, so that the heat-insulating material board is selected according to different application scenes;
no matter which kind of heat-insulating board is used for mounting, the heat-insulating board needs to be checked and cleaned before being stuck, and the heat-insulating board is dirty, uneven in surface or broken; and then the heat-insulating board is coated with the adhesive, and different heat-insulating boards are coated with different adhesive modes:
(1) For a homogenization plate: the full-adhesive method is adopted, the adhesive coating area is 100%, and the adhesive coating thickness is 8-10 mm;
(2) For rock wool boards: the method comprises the steps of (1) adopting a point frame method to carry out gluing on a peripheral area of the outer edge of a rock wool board, wherein the gluing thickness is not less than 20mm, and the area of a bonding point at the middle position is circular with the diameter not less than 150 mm; it should be noted that, this bonding method needs to reserve the vent hole.
(3) For graphite polystyrene board: uniformly smearing the adhesive strips on a graphite polystyrene board in the horizontal direction by adopting a strip frame method, wherein the adhesive strips are 10mm wide and 10mm thick and have a spacing of 50mm; the strip frame method construction diagram is shown in figure 2;
when the thermal insulation board is adhered, paving and adhering the thermal insulation board along the horizontal direction from bottom to top, and carrying out row-by-row staggered joint on the vertical joint, wherein the length of one half of the board or the interval is more than 200mm, and carrying out staggered joint lap joint on the two sides of the corner and ensuring the perpendicularity of the corner, as shown in figure 3;
when the thermal insulation board is adhered, the thermal insulation board is lightly pressed and uniformly extruded by using an adhering tool, and flatness and verticality are checked by using the guiding ruler board and the line supporting board at any time; the adhesive overflowed between the heat-insulating boards is removed at any time, so that the board seams are spliced tightly, the width of the seams is not more than 2mm, and the height of the seams is not more than 1.5mm;
in the fifth step, anchors are installed 24-48 h after the insulation board is adhered, the number of the anchors is determined according to the floor height and the properties of the base wall, the number of the anchors per square meter is not less than 6, and the number of the anchors is correspondingly increased at the positions of external corners, door openings, window holes and the like, as shown in fig. 4;
the anchoring depth of the anchoring piece is not less than 50mm from the concrete base layer and not less than 100mm from the building block base layer; and for anchoring parts added on the insulation board at the edges of the external corners and the holes, the space between the anchoring parts is not more than 300mm, and the anchoring depth of the concrete base layer is not less than 60mm.
It is to be noted that any single insulating board with the area larger than 0.1 square meter needs to be fixed by adding an anchor; the single heat insulation board with the area smaller than 0.1 square meter is also anchored when being positioned at the edge of the base layer; the head of the anchoring piece is lower than the heat insulation board, and is troweled by the plastering mortar in time to prevent rainwater from penetrating;
in the sixth step, fireproof treatment is specifically to arrange fireproof isolation belts, in the embodiment, the fireproof isolation belts are arranged by adopting thick rock wool double-sided composite boards reaching the A-level fireproof grade, the fireproof isolation belts are arranged along each layer of the outer wall, the arrangement height is 25 cm-35 cm, the fireproof isolation belts and the outer wall heat insulation boards are tightly spliced, and the gap is not more than 2mm;
the method comprises the steps of sticking the 250mm wide turned-over mesh cloth on the outer side of a door opening, two sides of a deformation joint and the termination parts of the heat-insulating board such as parapet wall and the like, sticking the width of the turned-over mesh cloth to be not less than 65mm, pasting the turned-over mesh cloth on the door opening, the window opening part or other termination parts, scraping the turned-over mesh cloth, sticking mesh cloth with the length of 400mm at four corners of the side wall of the opening and the width of the mesh cloth exceeding the width of the side wall of the window opening and the width of the heat-insulating part, and sticking a piece of mesh cloth with the width of 300mm multiplied by 200mm at the 45 DEG direction of the four corners of the opening, wherein the glue paste is made of the mesh cloth adhesive (plastering glue paste: water=1:0.25) (weight ratio);
when paving, firstly uniformly applying a layer of plastering adhesive cement with the thickness of 1.2-1.7 mm on the surface of the heat-insulating plate, then flatly adhering the grid cloth on the plastering adhesive cement, and pressing the grid cloth into the adhesive cement from the middle to the periphery by using a trowel to flatly compact the grid cloth, so that the grid cloth is strictly forbidden to be wrinkled. The scrim must not be pressed too far and the surface must be exposed to the cement. If the lapping is carried out, when each pair of grid cloth is hung and paved, and when two adjacent grid cloths are transversely lapped, the transverse lap joint is required to be staggered by 1000mm up and down, and the lapping width is not less than 100mm. When encountering the yin and yang corners of the wall surface, the grid cloth at the two sides cannot be disconnected at the corner part, and can be stopped only by turning the corner part to the other side by more than 200 mm;
embedding the grid cloth into the plastering adhesive along the grooves at the decorative concave joints, and if the grid cloth is broken at the decorative concave joints, overlapping the grid cloth, wherein the overlapping width is not less than 100mm;
in the seventh step, the hollow and damaged part reserved by the outer scaffold is repaired, and the repairing method comprises the following steps: filling the holes, and flattening by cement mortar; pre-cutting an insulation board with the same size as the hole; after the surface layer of the cement mortar is dried, the back surface of the heat-insulating board is coated with an adhesive with the thickness of 10mm, and the adhesive is not required to be coated on the peripheral edge of the heat-insulating board; inserting the heat insulation board into the outer wall base layer and bonding the heat insulation board to the outer wall base layer; the peripheral surface is covered by adhesive tape to prevent pollution. Cutting a piece of grid cloth which can cover the whole repair area and is at least 65mm overlapped with the original grid cloth; the surface of the insulation board is then coated with an adhesive and then leveled.
The present invention is not limited to the above embodiments, but is capable of modification and variation in all aspects, including those of ordinary skill in the art, without departing from the spirit and scope of the present invention.
Claims (9)
1. The external wall heat preservation construction method is characterized by comprising the following steps of: the method comprises the following steps:
step one, performing basic layer treatment on the surface of an external wall body;
step two, measuring and paying off the outer wall body;
step three, preparing a polymer adhesive;
brushing an adhesive, and pasting an insulation board;
step five, installing an anchoring piece;
step six, fireproof treatment and pasting of mesh cloth;
and seventhly, repairing holes and repairing.
2. The method for constructing the heat insulation of the external wall according to claim 1, wherein the base layer treatment in the step one comprises the surface dirt treatment and the flatness treatment of the external wall, and in the flatness treatment, when the local thickness deviation of the wall is not more than 4mm, the excess part is chiseled, and the sunken part is repaired and flattened by adopting mortar with the mass ratio of 1:3.
3. The method for constructing the heat insulation of the outer wall according to claim 1, wherein in the second step, the measuring pay-off specifically comprises the steps of snapping lines at the positions of doors and windows and the large angle position of the outer wall, arranging deformation lines and decoration lines, arranging a control horizontal line at the position 20-25 mm above the scattered water, and installing metal brackets on every four layers of the outer wall.
4. The external wall heat preservation construction method according to claim 1, wherein in the fourth step, different adhesive brushing modes are determined according to different material types of the selected heat preservation boards, and when the heat preservation boards are pasted, the pasting is carried out in a sequence of laying from bottom to top and in a horizontal direction, and the length or the interval of one half of the boards in the vertical joint staggered joint between the adjacent rows is more than 200 mm.
5. The method for constructing an external wall insulation according to claim 4, wherein the insulation board is one of a homogeneous board, a rock wool board and a graphite polystyrene board:
the homogenizing plate adopts a full-bonding method, the glue coating area is 100%, and the glue coating thickness is 8-10 mm;
the rock wool board adopts a point frame method, a peripheral area of the outer edge of the rock wool board is coated with glue, the thickness of the glue is not less than 20mm, and the area of a bonding point at the middle position is circular with the diameter not less than 150 mm;
the graphite polyphenyl board adopts a strip frame method, a plurality of adhesive strips are uniformly coated in the horizontal direction, the width of the adhesive strips is 10mm, the thickness is 10mm, and the interval is 50mm.
6. The method for constructing the external wall insulation according to claim 1, wherein in the fifth step, the number of the anchors is determined according to the floor height and the properties of the base layer, and the number of the anchors per square meter is not less than 6;
the anchoring depth of the anchoring piece is not less than 50mm from the concrete base layer and not less than 100mm from the building block base layer.
7. The external wall heat preservation construction method according to claim 6, wherein the number of the anchoring pieces is correspondingly increased at the positions of the external corner, the door opening and the window opening, the distance between the two anchoring pieces is not more than 300mm, and the anchoring depth concrete base layer is not less than 60mm.
8. The method for constructing the heat insulation of the outer wall according to claim 1, wherein in the step six, the fireproof treatment is specifically that a thick rock wool double-sided composite board with the height of 25-35 mm is used as a fireproof isolation belt.
9. The method for constructing the heat insulation of the outer wall according to claim 1, wherein in the sixth step, when the grid cloth is pasted, the grid cloth is turned over at the exposed part of the side edge of the heat insulation board, and when in lap joint, the joint is required to be staggered up and down by 1000mm, and the lap joint width is not less than 100mm; the grid cloth on two sides is kept continuous at the corner part when the yin and yang angle is formed, and the grid cloth can be stopped only by rotating the corner part to the other side by more than 200 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310732251.8A CN116905747A (en) | 2023-06-20 | 2023-06-20 | External wall heat preservation construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310732251.8A CN116905747A (en) | 2023-06-20 | 2023-06-20 | External wall heat preservation construction method |
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| CN202310732251.8A Pending CN116905747A (en) | 2023-06-20 | 2023-06-20 | External wall heat preservation construction method |
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