CN216616362U - Aerogel felt outer wall external insulation system - Google Patents
Aerogel felt outer wall external insulation system Download PDFInfo
- Publication number
- CN216616362U CN216616362U CN202122706238.4U CN202122706238U CN216616362U CN 216616362 U CN216616362 U CN 216616362U CN 202122706238 U CN202122706238 U CN 202122706238U CN 216616362 U CN216616362 U CN 216616362U
- Authority
- CN
- China
- Prior art keywords
- layer
- aerogel
- adhesive
- plastering
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Building Environments (AREA)
Abstract
The utility model discloses an aerogel felt external thermal insulation system for an external wall. The floor sequentially comprises a base layer, a leveling layer, an adhesive layer, a heat-insulating layer, a plastering layer and a decorative layer. Wherein one side of the bonding layer is tightly attached to the leveling layer, the other side of the bonding layer is fixedly attached to the heat-insulating layer, and the heat-insulating layer is tightly attached to the plastering layer with the thickness of 2-3 mm; the heat-insulating layer refers to: pasting the aerogel felt; the adhesive layer is adhesive with the thickness of 1-2mm, and the plastering layer is characterized in that: the outer surface treatment layer of the embedded glass fiber mesh cloth. The aerogel thermal insulation felt is used in an outer wall thin plastering system, can be better attached to the outer wall of a building, does not need metal rivets in the whole construction, can be applied to walls made of various materials, and avoids the cold and hot bridge effect formed by the metal rivets.
Description
Technical Field
The utility model belongs to the technical field of building external wall insulation, and particularly relates to an aerogel felt external wall insulation system.
Background
The existing building external wall heat preservation technology mainly adopts traditional rock wool, but the main defects thereof are as follows: 1. the bonding strength can not reach the standard; 2. the plastering layer is seriously hollow; 3. the flatness can not reach the standard; 4. the material has poor strength and is easy to damage in the construction process; 5. the material has poor strength and is not easy to store on site; 6. the fire-proof grade does not reach the standard; 7. the heat insulating material is easy to absorb water to affect the heat insulating effect.
The aerogel is a novel nano material, has a porous network framework structure, is large in specific surface area, has over 90% of air in volume in the material, is extremely low in density, has extremely low heat conductivity coefficient, is used as a building material, and has the advantages of light weight and good energy-saving effect. The aerogel energy-saving material can be developed rapidly, obtains the general attention of scholars in different countries, has outstanding advantages and is mainly embodied in the following points:
firstly, the heat preservation effect is good, the porosity of the aerogel material is high, and the heat conduction in the aerogel material has three heat transfer types:
(1) heat conduction: the aerogel has small density and high porosity, and the structural characteristics of the aerogel prolong the propagation path of heat in the material, so that the propagation efficiency of the heat is greatly reduced, and the thermal conductivity is 0.2 percent of that of the solid homogeneous material.
(2) Convection: the colloidal particle diameter of the aerogel material is less than 20 nm, which is less than 1/3 of the average free path (about 70 nm) of air molecules, so that the free movement of the air molecules in the aerogel material is greatly limited, and the convective thermal conductivity of air is also greatly reduced.
(3) Radiation: the thermal radiation and the infrared light wavelength of the aerogel are repeated, most of infrared radiation can be collided, the thermal radiation is shielded, and the radiation thermal conductivity is extremely low. Therefore, the aerogel has extremely low overall thermal conductivity coefficient, is usually between 0.01 and 0.03 WI (m.K) at atmospheric pressure and room temperature, is the lowest among known solid materials, and has good heat insulation effect.
Second, low density: according to the method, the density of the aerogel material is 0.16 kg/m through high-speed dry-mass dry mass production can be realized.
Thirdly, the transparency is high. The aerogel is a nano-scale porous material, has a long mean free path of light and almost zero heat reflection, can penetrate through sunlight and reduce low-temperature infrared radiation, and can remarkably improve the heating efficiency and reduce the heat loss when being used in a solar heat collection system. In addition, the aerogel has obvious advantages in the aspects of sound insulation, fire prevention, corrosion resistance and aging resistance, and is a novel building energy-saving material which is safe, energy-saving and environment-friendly.
In order to overcome the defects of the traditional heat insulation material in the aspects of heat insulation effect, falling of the heat insulation material, fire resistance level, energy conservation and the like, the utility model provides the method for using the aerogel heat insulation felt in the thin plastering system of the outer wall, the aerogel heat insulation felt can be better attached to the outer wall of a building due to the flexible material, and the aerogel heat insulation felt can be applied to walls made of various materials without metal rivets in the whole construction, so that the cold and hot bridge effect formed by the metal rivets is avoided.
Disclosure of Invention
In order to achieve the purpose, the utility model discloses the following technical contents:
an aerogel felt exterior wall external thermal insulation system sequentially comprises a base layer, a leveling layer, an adhesive layer, a thermal insulation layer, a plastering layer and a veneer layer, and is characterized in that one side of the adhesive layer 3 is tightly attached to the leveling layer 2, the other side of the adhesive layer is fixedly attached to the thermal insulation layer 4, and the thermal insulation layer 4 is tightly attached to a plastering layer 5 with the thickness of 2-3 mm; wherein the heat-insulating layer refers to: pasting an aerogel felt with the thickness of 20 mm; the adhesive layer is adhesive with the thickness of 1-2mm, and the plastering layer is characterized in that: the outer surface treatment layer of the embedded glass fiber mesh cloth.
The base layer of the present invention comprises: concrete walls, various masonry walls; the leveling layer refers to: cement mortar; the adhesive layer means: adhesives (commercially available); the heat preservation refers to: aerogel blanket paste (commercially available); the surface layer means: embedding glass fiber mesh cloth (conventional method); the finishing layer refers to: paint, facing mortar, and the like.
The utility model further discloses a construction method of the aerogel felt external thermal insulation system, which is characterized by comprising the following steps:
1. preparing a base layer and leveling a layer: leveling the whole cement mortar on the surface of the base layer;
2. an adhesive layer, wherein an adhesive with the thickness of 2-3mm is coated;
3. insulating layer: brushing an interface agent before pasting the aerogel felt, and then uniformly coating 1-2mm of adhesive on the surface of the aerogel felt with the thickness of 20 mm; the aerogel felt sticking seams are staggered;
4. finishing layer:
(1) coating a first surface layer coating adhesive cement:
pasting the aerogel felt for 24 hours, and forcibly smearing a first layer of bottom layer plastering glue with the thickness of 2-3mm on the outer surface of the aerogel felt by using plastering mortar; then pressing the glass fiber mesh cloth into the rendering coat mortar, and rendering the rendering coat mortar extruded from the meshes flat; after the first-time plastering mortar is dried, the plastering mortar is used for leveling again integrally; ensuring that the flatness of the protective layer is in accordance with 2-3 mm;
(2) coating a second layer surface layer coating adhesive cement:
pressing mesh cloth in, and then performing second layer surface layer plastering mortar construction, wherein the thickness of the second layer surface is 2-3 mm;
(3) coating a third surface layer with coating mortar:
after the second time of rendering coat mortar is slightly dried, performing third time of rendering coat mortar construction, wherein the thickness is 1 mm;
5. detail processing:
(1) the outer corners of the four sides of the door and window opening are subjected to anti-collision strengthening treatment in a corner wrapping strip/piece or double-mesh wrapping mode, and mesh cloth of 200mm multiplied by 300mm is adhered to the four corners of the opening to prevent cracking;
(2) outer door and window opening part
1) The periphery of the door and window opening is pasted and coated by aerogel felt, and the thickness of the heat insulation material is 20 mm; flexible waterproof sealing and anti-cracking treatment should be carried out between the system and the door and window frame;
2) dripping water on the upper edge of the door and window opening;
3) the windowsill part is provided with safety measures for preventing treading damage; joints between the window board mounting edge and the window frame and between the window board and the heat-insulating layer are subjected to flexible waterproof sealing treatment;
4) the inside and the outside of the parapet wall are subjected to heat preservation treatment, and the inside heat preservation is well connected with the roof heat preservation;
5) gel felt with the thickness of 20mm is adhered below the plinth of the outer wall;
6. finishing layer: and finally, performing heat preservation and facing treatment on the exterior of the wall.
The utility model also discloses an application of the construction method of the aerogel felt external thermal insulation system in the aspect of avoiding cold and hot bridge effect in an external wall thin plastering system, and experimental results prove that: the construction method of the aerogel felt external thermal insulation system effectively avoids the problems of heat dissipation loss and thermal insulation material falling caused by rivets in a thin plastering system.
The utility model mainly solves the defects of the traditional heat insulation material in the aspects of heat insulation effect, heat insulation material falling, fire resistance grade and energy conservation of the building, mainly considers energy conservation and consumption reduction and stable use of the heat insulation system at various environmental temperatures, and has the main difficulty that the whole performance is improved under the condition of reducing the thickness of the original heat insulation system.
The utility model is described in more detail below:
1. preparation and acceptance of base course
(1) The surface of the base layer should be clean and free of materials which obstruct adhesion, such as oil stains, wax, mold release agents, water repellents, coatings, efflorescence substances, dirt, mud and the like.
(2) The uneven part of the newly-built engineering wall body is integrally leveled by adopting cement mortar with the ratio of 1:2.5, and the flatness deviation of the base layer surface is ensured not to exceed 4 mm.
(3) The excessively dried base layer should be wetted by water spray.
(4) And (5) checking whether the base course is qualified or not and starting the construction of the heat insulation project after the base course has construction conditions.
2. Coating an adhesive: the pasting area of the aerogel felt is not less than 95 percent.
3. Aerogel felt paste (thickness 20 mm):
(1) before the aerogel is pasted, an interface agent is brushed, then an adhesive is distributed on the surface of the aerogel felt, and the adhesive is regularly carded by a special spatula and uniformly distributed. When the adhesive is pasted, the adhesive is gently and uniformly extruded, the flatness and the verticality are checked by using a 2m guiding rule and a wire supporting plate at any time, and the extruded adhesive is removed in time after one plate is pasted.
(2) The aerogel felt plate seams are staggered, the gaps among the plates cannot have a fall, the gaps among the plates cannot be larger than 2mm (the plate seams are treated by polyurethane), and the height difference among the plates is not larger than 1 mm.
(3) No adhesive is allowed to be present in the plate seam.
(4) And adopting aerogel felts with the same size at the corners of the walls in construction according to the specification. The aerogel blankets at the corners of the walls must be adhered in a staggered manner.
(5) The aerogel felt at the four corners of the door and window opening is adhered, so that the occurrence of seams in the range of 200mm at the four corners is avoided. The aerogel blanket extending beyond the edge can be cut after the adhesive has dried.
4. Coating a first bottom layer coating adhesive cement:
(1) after the aerogel felt is pasted for 24 hours, a water dripping groove is made, the water dripping groove is checked and accepted to be qualified, and a surface treatment layer with the thickness of 2-3mm is coated on the outer surface of the aerogel felt by using the rendering coat mortar. The rendering coat mortar should be embedded into the fiber filaments of the aerogel as much as possible, and the outer surface treatment layer should cover 100% of the outer surface area of the aerogel blanket. After the outer surface treatment layer was slightly dried, leveling was performed using a finishing mortar.
(2) The mortar plastering construction is intermittently carried out at natural disconnection positions, such as expansion joints, internal and external corners, cantilever platforms and the like, so that the subsequent construction can be conveniently lapped;
5. press-in glass fiber net
(1) And pressing the glass fiber mesh cloth into the rendering coat mortar in time within the time range that the rendering coat mortar has good working performance, and rendering the rendering coat mortar extruded from the meshes smooth. The fiberglass mesh should be adequately wrapped with the size. And strictly forbidding to surf the net first and then daub the glue. On one hand, the glass fiber mesh cloth should be as close to the surface of the rendering coat mortar as possible, and on the other hand, the glass fiber mesh cloth should not be exposed on the surface of the protective layer.
(2) After the first-time rendering mortar is dried, because the aerogel felt cannot be polished, and because of the problem of inconsistent operation methods of workers after the first-time net pressing, if some grid cloth leaks after the grid cloth is laid, the rendering mortar must be used for integral leveling again; the flatness of the protective layer is ensured to meet the requirement of 2mm-3 mm.
(3) When the gridding cloth is laid, attention needs to be paid to the horizontal and vertical direction of the gridding cloth when the gridding cloth is laid, so that the gridding cloth is prevented from deviating, and more than 100mm of lap joint between the cover surface gridding cloth needs to be ensured. For the lapping position of the mesh cloth, some plastering mortar needs to be scraped off firstly during laying, and lapping treatment is carried out on the mesh cloth to ensure the lapping flatness.
(4) When the ambient temperature is relatively low or the relative humidity of air is high, the time required for the material to dry and harden is correspondingly long. It should be avoided that the not yet hardened material is directly exposed to relatively severe weather conditions, in particular rain wash. When necessary, the newly constructed wall surface is shielded and protected by the rain-shielding cloth.
6. And (4) coating a second layer of surface layer plastering mortar, pressing the second layer of surface layer plastering mortar into the mesh, and then performing second layer of surface layer plastering mortar construction, wherein the thickness of the second layer of surface layer plastering is about 2-3mm, and the process is the same as the above.
7. Coating surface mucilage for the third time: and after the second time of rendering coat mortar is slightly dried, the third time of rendering coat mortar construction can be carried out, and the thickness is 1 mm.
8. Detail processing
(1) The outer corners of the four sides of the door and window opening are subjected to anti-collision strengthening treatment by adopting corner wrapping strips/pieces or double wrapping nets, and grid cloth of 200mm multiplied by 300mm is adhered to the four corners of the opening to be subjected to anti-cracking strengthening treatment.
(2) Outer door and window opening part
1) The periphery of the door and window opening is coated by aerogel felt, and the thickness of the heat-insulating material is not less than 10 mm; the flexible waterproof sealing and anti-cracking treatment should be carried out between the system and the door and window frame.
2) The upper edge of the door and window opening is treated by dripping water.
3) The windowsill part should have safety measures against treading damage. The windowsill part is preferably provided with a windowsill board. The window board is lower than the drain hole of the window frame, and the drainage gradient is not less than 5%; the two sides of the window board are preferably provided with water blocking edges. The joints between the window board mounting edge and the window frame and between the window board and the heat-insulating layer are subjected to flexible waterproof sealing treatment.
4) The inside and outside of the parapet wall should be subjected to heat preservation treatment, and the inside heat preservation should be well connected with the roof heat preservation. If the height of the parapet wall is less than 500m, the top of the parapet wall should be subjected to heat preservation treatment. The top of the parapet wall is preferably pressed by a metal plate or a concrete plate, the inward drainage gradient of the pressed roof is not less than 5%, and the pressed roof is preferably respectively 30-50mm away from the inside of the parapet wall and has a water dripping structure. The joint between the external thermal insulation and the parapet coping is required to be sealed flexibly and waterproof.
5) Aerogel felts with the thickness of 20mm are bonded below the plinths of the outer walls.
The utility model discloses an aerogel felt external thermal insulation system, which has the following main performance detection indexes:
comparative experiment:
the utility model further illustrates the difference between the traditional insulation board and the aerogel felt outer wall insulation system of the utility model through a 1 square meter wall outer insulation experiment:
traditional aerogel heated board: five points are needed outside the wall body with the square meter of 1 meter, namely four corners and a middle point, and then the four points are combined with the anchor bolts to be attached to the wall, but in the process of driving the anchor bolts, the strength of the plate is sometimes insufficient, and the plate is often cracked.
Pasting the aerogel felt: directly coating adhesive outside a wall body with the square meter of 1m, and then directly sticking aerogel felt:
compared with the prior art, the aerogel felt external wall external thermal insulation system disclosed by the utility model has the positive effects that:
(1) the aerogel thermal insulation felt is used in the thin plastering system of the outer wall, can be better attached to the outer wall of a building due to the flexible material, does not need metal rivets in the whole construction, can be applied to walls made of various materials, and avoids the cold and hot bridge effect formed by the metal rivets.
(2) The heat insulation performance is 3-5 times of that of the traditional heat insulation material, and the energy-saving effect is improved by more than 50%;
(3) the anti-aging performance is very strong, and the service life of the material is 8-10 times that of the conventional material;
(4) the aerogel is made of common materials 1/2-1/5 in thickness, so that space is saved;
(5) the construction process is simpler and more convenient, and a large amount of auxiliary materials are saved;
(6) less maintenance cost and more reliable heat insulation effect;
(7) fire prevention, wide temperature application range and temperature difference impact resistance;
(8) waterproof, impervious, crack-resistant and shock-resistant.
Description of the drawings:
FIG. 1 is a schematic structural diagram of an external thermal insulation system of an aerogel felt external wall: wherein, the adhesive layer comprises (1) a base layer, (2) a leveling layer and (3) an adhesive layer; (4) a heat-insulating layer, (5) a plastering layer and (6) a decorative layer.
Detailed Description
The utility model is described below by means of specific embodiments. Unless otherwise specified, the technical means used in the present invention are well known to those skilled in the art. In addition, the embodiments should be considered illustrative, and not restrictive, of the scope of the utility model, which is defined solely by the claims.
Example 1
An aerogel felt external thermal insulation system comprises a base layer, a leveling layer, an adhesive layer, a thermal insulation layer, a plastering layer and a veneer layer in sequence, and is characterized in that one surface of the adhesive layer is tightly attached to the leveling layer, the other surface of the adhesive layer is fixedly attached to the thermal insulation layer, and the thermal insulation layer 4 is tightly attached to the plastering layer 5 with the thickness of 2 mm; wherein the heat-insulating layer refers to: pasting the aerogel felt; the adhesive layer is adhesive with the thickness of 1mm, and the plastering layer is as follows: the outer surface treatment layer of the embedded glass fiber mesh cloth. The pasting thickness of the aerogel felt is 20 mm.
Example 2
The construction method of the aerogel felt external wall external thermal insulation system comprises the following steps:
1. preparing a base layer and leveling a layer: integrally leveling cement mortar on the surface of the base layer;
2. an adhesive layer, wherein an adhesive with the thickness of 2mm is coated;
3. insulating layer: brushing an interface agent before pasting the aerogel felt, and then uniformly coating a 2mm adhesive on the surface of the aerogel felt with the thickness of 20 mm; the aerogel felt sticking seams are staggered;
4. finishing layer:
(1) coating a first surface layer coating adhesive cement:
pasting the aerogel felt for 24 hours, and forcibly smearing a first layer of bottom layer smearing glue of 2mm on the outer surface of the aerogel felt by using smearing mucilage; then pressing the glass fiber mesh cloth into the rendering coat mortar, and rendering the rendering coat mortar extruded from the meshes flat; after the first-time plastering mortar is dried, the plastering mortar is used for leveling again integrally; ensuring that the flatness of the protective layer meets the requirement of 2 mm;
(2) coating a second layer surface layer coating adhesive cement:
pressing mesh cloth in, and then performing second layer surface layer plastering mortar construction, wherein the thickness of the second layer surface is 2 mm;
(3) coating a third surface layer with coating mortar: after the second time of rendering coat mortar is slightly dried, performing third time of rendering coat mortar construction, wherein the thickness is 1 mm;
5. detail processing:
(1) the outer corners of the four sides of the door and window opening are subjected to anti-collision reinforcement treatment in a corner wrapping strip/piece or double-mesh wrapping mode, and mesh cloth of 200mm multiplied by 300mm is pasted at the four corners of the opening to prevent cracking;
(2) outer door and window opening part
1) The periphery of the door and window opening is pasted and coated by aerogel felt, and the thickness of the heat insulation material is 20 mm; flexible waterproof sealing and anti-cracking treatment should be carried out between the system and the door and window frame;
2) dripping water treatment is carried out on the upper edge of the door and window hole;
3) the windowsill part is provided with safety measures for preventing treading damage; joints between the window board mounting edge and the window frame and between the window board and the heat-insulating layer are subjected to flexible waterproof sealing treatment;
(3) the inside and the outside of the parapet wall are subjected to heat preservation treatment, and the inside heat preservation is well connected with the roof heat preservation;
(4) gel felt with the thickness of 20mm is adhered below the plinth of the outer wall;
6. finishing layer: finally, the wall is insulated and finished.
Claims (1)
1. An aerogel felt exterior wall external thermal insulation system sequentially comprises a base layer, a leveling layer, an adhesive layer, a thermal insulation layer, a plastering layer and a veneer layer, and is characterized in that the adhesive layer (3) is an adhesive with the thickness of 1-2mm, one surface of the adhesive layer is tightly attached to the leveling layer (2), the other surface of the adhesive layer is fixedly attached to the thermal insulation layer (4), and the thermal insulation layer (4) is tightly attached to the plastering layer (5) with the thickness of 2-3 mm; wherein the heat-insulating layer (4) refers to: pasting 20mm thick aerogel felts, and staggering the pasting seams of the aerogel felts; the plastering layer (5) refers to: the outer surface treatment layer of the glass fiber mesh cloth is embedded in the outer surface treatment layer; the tight attaching means that the adhesive is directly coated and then the aerogel felt is directly attached; the aerogel felt external thermal insulation system does not need to be fixed by metal rivets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122706238.4U CN216616362U (en) | 2021-11-08 | 2021-11-08 | Aerogel felt outer wall external insulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122706238.4U CN216616362U (en) | 2021-11-08 | 2021-11-08 | Aerogel felt outer wall external insulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216616362U true CN216616362U (en) | 2022-05-27 |
Family
ID=81695533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122706238.4U Active CN216616362U (en) | 2021-11-08 | 2021-11-08 | Aerogel felt outer wall external insulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216616362U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033066A (en) * | 2021-11-08 | 2022-02-11 | 高峰 | Aerogel felt external wall external thermal insulation system and construction method and application thereof |
-
2021
- 2021-11-08 CN CN202122706238.4U patent/CN216616362U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033066A (en) * | 2021-11-08 | 2022-02-11 | 高峰 | Aerogel felt external wall external thermal insulation system and construction method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101158213B (en) | Exterior outer-insulating system construction method for using direct-compress EPS inorganic clad plate | |
| CN111945928A (en) | Energy-saving heat-insulating wall and roof | |
| CN1105816C (en) | Construction tech. for thermal insulating of exposed wall | |
| CN107338967A (en) | A kind of new technology and new material of aging blocks outdoor tile facing renewal and reform | |
| CN110778062A (en) | Facing paving structure of floor heating area and construction method thereof | |
| CN216616362U (en) | Aerogel felt outer wall external insulation system | |
| CN209958534U (en) | Low-energy-consumption energy-saving building system | |
| CN103485429B (en) | The ultra-thin vacuum heat-insulating plate of HD-STP external wall and construction technology thereof | |
| CN110670827A (en) | Heat-insulating waterproof construction method for building external wall | |
| CN103343578A (en) | STP ultra-thin vacuum heat insulation heat preservation board and application of STP ultra-thin vacuum heat insulation heat preservation board in outer wall construction | |
| CN111042361A (en) | Gel non-combustible heat insulation plate external wall external heat insulation system and construction method | |
| CN109797875A (en) | A kind of low energy consumption energy saving building system | |
| CN201128995Y (en) | Direct applying type ESP composite board and exterior wall external insulation system thereof | |
| CN216276503U (en) | Multifunctional heat-preservation and heat-insulation roof decoration integrated plate and assembled roof structure | |
| CN114033066A (en) | Aerogel felt external wall external thermal insulation system and construction method and application thereof | |
| CN216041857U (en) | Door opening reinforcing structure of external wall heat insulation system | |
| CN104179265A (en) | Inorganic fireproof heat preservation structure and construction method thereof | |
| CN111472469A (en) | Nano aerogel external wall thermal insulation system and construction method | |
| CN113882538A (en) | Rock panel indoor heat insulation layer construction method | |
| CN207079823U (en) | A kind of roofing thermal-insulating board mortar cover anti-cracking structure | |
| CN209145059U (en) | A kind of thermal-insulating leakage-resistant leakage exterior wall | |
| CN207525912U (en) | A kind of fireproof heat insulating construction used for building exterior wall | |
| CN207469509U (en) | A kind of steel house wall external heat-insulation decoration system | |
| CN207863199U (en) | A kind of waterproof and insulation integrated plate | |
| CN202500348U (en) | Prefabricated part roofing waterproof leakage mending structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |