CN113668779A - Construction method of waterproof photovoltaic integrated roof - Google Patents
Construction method of waterproof photovoltaic integrated roof Download PDFInfo
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- CN113668779A CN113668779A CN202111093003.0A CN202111093003A CN113668779A CN 113668779 A CN113668779 A CN 113668779A CN 202111093003 A CN202111093003 A CN 202111093003A CN 113668779 A CN113668779 A CN 113668779A
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
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Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
- E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
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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
- E04D13/1687—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 the insulating material having provisions for roof drainage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
- F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
- F24S25/61—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing to the ground or to building structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/20—Supporting structures directly fixed to an immovable object
- H02S20/22—Supporting structures directly fixed to an immovable object specially adapted for buildings
- H02S20/23—Supporting structures directly fixed to an immovable object specially adapted for buildings specially adapted for roof structures
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/47—Mountings or tracking
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention relates to a construction method of a waterproof photovoltaic integrated roof, which comprises the following steps: mounting the precast concrete roof laminated slab to form a base layer with rib plates in the circumferential direction; installing a photovoltaic support on the base layer; spraying a polyurethane foaming material on the base layer, and foaming and forming to form a heat insulation layer; laying a reinforcing mesh on the heat insulation layer; pouring concrete, and leveling the surface to form a leveling layer; and constructing waterproof paint on the leveling layer to form a waterproof layer. According to the invention, the laminated plates are spliced to form the base layer, the circumferential rib plates play the roles of the template and the elevation, the photovoltaic support is firstly installed on the base layer, then the construction of the heat insulation layer, the leveling layer and the waterproof layer is carried out, and the photovoltaic assembly is directly installed on the photovoltaic support when being installed, so that the damage of punching on the waterproof layer is avoided, the waterproof nodes are easy to process, and the waterproof reliability is improved. Meanwhile, the waterproof layer is exposed, thick coating repair is directly carried out if leakage occurs in the later period, roof members or structures do not need to be dismantled, and the waterproof layer is convenient to maintain and economical.
Description
Technical Field
The invention belongs to the technical field of building roof construction, and particularly relates to a construction method of a waterproof photovoltaic integrated roof.
Background
According to 7-month-4-2014, the national building leakage condition survey project report of 2013 issued by the China building waterproofing Association and Beijing zero market research and analysis company. At present, the leakage rate of roofs in China reaches 95.33%, and the whole waterproof body must be repaired once every 5-8 years on average, so that a large amount of building waste is generated, and serious resource waste is caused. Particularly, in the prior art, a large number of devices and components are installed on the upper portion of the roof when the distributed building integrated photovoltaic roof is widely applied, and once the roof leaks and needs to be maintained, all the components on the upper portion need to be removed first, so that the waterproof maintenance difficulty and maintenance cost of the roof are greatly increased, and the improvement of the waterproof performance of the distributed building integrated photovoltaic roof is very important.
The existing distributed building photovoltaic integrated roof is not considered too much before the roof building design, and after the roof structure is completely built, a photovoltaic support is installed on the roof structure in a drilling mode in the later period, so that a waterproof layer on the lower portion of the roof is easy to damage, and the leakage risk is increased. For example, chinese patent CN206360228U discloses a waterproof photovoltaic power generation device for a reinforced concrete roof, which comprises a steel plate disposed on the reinforced concrete roof, a photovoltaic support and a photovoltaic panel are fixedly disposed on the steel plate, a waterproof bolt is disposed on the steel plate, the waterproof bolt comprises a screw rod and a metal sheet fixedly disposed on the circumferential surface of the screw rod, the metal sheet is disposed between the steel plate and the reinforced concrete roof, and the screw rod penetrates through the steel plate and is fixedly disposed on the reinforced concrete roof, so as to achieve the effects of fixing the photovoltaic panel on the reinforced concrete roof and preventing the reinforced concrete roof from cracking and leaking water. However, the power generation device still drills holes in the reinforced concrete roof and then inserts the screw rods to install the photovoltaic support, the phenomenon that the waterproof layer of the roof is damaged still exists, and the leakage risk is increased.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a construction method of a waterproof photovoltaic integrated roof, which is low in leakage rate and convenient to maintain.
In order to achieve the purpose, the technical scheme is as follows:
a construction method of a waterproof photovoltaic integrated roof comprises the following steps:
(1) mounting the precast concrete roof laminated slab to form a base layer with rib plates in the circumferential direction;
(2) mounting a photovoltaic support on the base layer;
(3) spraying a polyurethane foaming material on the base layer, and foaming and forming to form a heat insulation layer;
(4) paving a reinforcing mesh on the heat-insulating layer;
(5) pouring concrete, and leveling the surface to form a concrete leveling layer;
(6) and constructing waterproof paint on the leveling layer to form a waterproof layer.
In some embodiments, in step (1), the base layer is constructed by using a composite slab having a rib in whole or in part so that the rib is included in the middle of the base layer.
In some preferred and specific embodiments, in the step (1), a slope is formed at the upper end part of the rib plate in the circumferential direction, and the slope of the slope is 0.5-2%. Will the floor can also play the slope effect of looking for as template and elevation, the screed-coat of construction.
In some preferred and specific embodiments, in the step (2), the photovoltaic support is fixed on the laminated slab of the base layer by structural adhesive or welding, and when a steel bar is preset on the laminated slab, the photovoltaic support is fixed on the steel bar of the laminated slab of the base layer by the welding.
In some preferred and specific embodiments, in the step (2), the construction method further comprises a step of installing a line pipe on the base layer, the line pipe being fixed on the laminated slab of the base layer by structural glue or welding.
In some preferred and specific embodiments, in the step (5), the leveling layer is constructed such that the upper surface of the leveling layer is flush with the upper surface of the rib plate.
In some preferred and specific embodiments, in the step (5), the construction method further includes the step of vibrating the concrete after the concrete is poured.
In some preferred and specific embodiments, in the step (6), the waterproof coating is applied so that the waterproof coating extends from the leveling layer to the upper surface of the rib plate to form integral waterproof.
In some preferred and specific embodiments, in step (6), the waterproof coating includes a first polyurethane waterproof coating and a second polyurethane waterproof coating, and the second polyurethane waterproof coating is a white exposed polyurethane waterproof coating, and when the waterproof coating is applied, the first polyurethane waterproof coating is applied on the leveling layer and then cured to form a first waterproof layer, and then the second polyurethane waterproof coating is applied on the first waterproof layer and then cured to form a second waterproof layer. The waterproof layer is prepared by adopting the polyurethane waterproof coating, so that the problem of leakage caused by the breakage of the waterproof layer caused by roof deformation can be avoided.
And further, when the first polyurethane waterproof coating is constructed, brushing is carried out for multiple times, after the surface of the first-time spraying is dried, polyester fiber mesh cloth is fully paved, and then the next brushing is carried out.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the construction method, the base layer is formed by splicing the laminated plates, the circumferential rib plates play a role of a template and a role of elevation, the photovoltaic support is firstly installed on the base layer, then the construction of the heat insulation layer, the leveling layer and the waterproof layer is carried out, the photovoltaic assembly is directly installed on the photovoltaic support when being installed, the damage of punching on the waterproof layer is avoided, the waterproof nodes are easy to process, and the waterproof reliability is improved. Meanwhile, the waterproof layer is exposed, thick coating repair can be directly carried out if leakage occurs in the later period, roof components or structures do not need to be dismantled, and the waterproof layer is convenient to maintain and economical.
The construction method of the invention creatively constructs the polyurethane foam heat-insulating layer before the concrete leveling layer, embeds the heat-insulating layer in the roof, and greatly improves the waterproof performance.
Drawings
Fig. 1 is a roofing structure obtained by a method of constructing a waterproof photovoltaic integrated roofing according to an embodiment of the present invention;
in the figure: 1. a base layer; 2. a rib plate; 3. a heat-insulating layer; 4. leveling layer; 5. a reinforcing mesh; 6. a first waterproof layer; 7. a second waterproof layer; 8. a photovoltaic support; 9. and (4) structural adhesive.
Detailed Description
The technical solutions of the present invention are described in detail below with reference to specific examples so that those skilled in the art can better understand and implement the technical solutions of the present invention, but the present invention is not limited to the scope of the examples.
The construction method of the waterproof photovoltaic integrated roof provided by the embodiment comprises the following steps:
(1) construction base layer
The method comprises the following steps that a plurality of laminated slabs are selected, stress ribs are preset in the laminated slabs, the laminated slabs have the characteristics of high bearing capacity, stable size, no cracking and the like, the laminated slabs have the performance of completely bearing roof loads, and the laminated slabs can be partially or completely selected from the laminated slabs with rib plates 2 in order to ensure the rigidity and stability of the laminated slabs;
splice a plurality of superimposed sheets, through welded fastening between the exposed reinforcing bar of two adjacent superimposed sheets, then pour the concrete between two adjacent superimposed sheets, the solidification forms integratively, obtains basic unit 1, and when the superimposed sheet splices, needs to make the circumference of the basic unit 1 of follow-up formation and middle part contain floor 2. The height of the rib plates 2 around the base layer 1 forms a slope, the slope of the slope is 0.5-2%, and the specific slope value can be selected according to the span of the roof.
(2) Installing photovoltaic mounts and conduits
Fix photovoltaic support 8 and spool on the upper surface of basic unit 1 through structure glue 9 on basic unit 1, the fixed position of photovoltaic support 8 and spool and interval can be confirmed according to later stage photovoltaic module's mounted position.
(3) Construction heat-insulating layer
And uniformly spraying a hard polyurethane foaming material on the base layer 1, constructing twice, forming a heat insulation layer 3 by foaming and molding, and constructing the heat insulation layer 3 according to the designed thickness.
(4) Laying anti-crack reinforcing mesh
After the construction of the heat preservation layer 3 is completed, the anti-cracking reinforcing mesh 5 is laid on the heat preservation layer 3 in time, specifically: adopt the reinforcing bar of 4~8mm diameter, lay the interval and be 100~120mm, lay the square grid net, adopt to prick the silk ligature fixed firm.
(5) Construction leveling layer
Taking the ribbed slabs 2 as templates and elevations for fine aggregate concrete pouring, wherein the concrete strength grade is C20-C30, and the concrete value is C30;
concrete should pour closely knit, and abundant vibration uses the upper surface of floor 2 in time to make level and the maintenance of moisturizing after pouring the completion as the standard, forms concrete screed-coat 4, and screed-coat 4's upper surface flushes with the upper surface of floor 2, and this screed-coat 4 has certain slope, has the effect of looking for the slope.
(6) Construction waterproof coating
Constructing a first waterproof layer 6: after the concrete reaches the strength, spraying the first polyurethane waterproof coating on the leveling layer 4 for multiple times, wherein the first polyurethane waterproof coating is only the conventional polyurethane waterproof coating and does not need to be exposed. After the first spraying is finished and the surface is dried, the polyester fiber mesh cloth is fully paved for reinforcement, and then the next spraying of the coating is carried out.
And (3) spraying for multiple times, wherein the direction of each construction is vertical, the next construction can be carried out after the coating on the upper time is dried, and the thickness of the first waterproof layer 6 formed by the construction is 2-3 mm, specifically 3 mm.
When the first polyurethane waterproof coating is constructed, the first polyurethane waterproof coating needs to extend from the leveling layer 4 to the rib plate 2 so as to form integral roof waterproof. Meanwhile, thick coating treatment is carried out on the photovoltaic support 8, the line pipe and other node parts, and the waterproof reliability is improved.
Constructing a second waterproof layer 7: and a second polyurethane waterproof coating is sprayed on the first waterproof layer 6, and the second polyurethane waterproof coating adopts a white exposed polyurethane waterproof coating, and has the requirements of ultraviolet resistance, wear resistance and the like if an aliphatic polyurethane waterproof coating is adopted.
And the first waterproof layer 6 is completely covered by adopting two-time spraying without accumulation and bottom exposure.
(7) Installing a photovoltaic module
And measuring and marking the installation height of the photovoltaic support 8, cutting off the overlong part, and installing the photovoltaic assembly.
The roof structure formed by the construction method comprises a base layer 2 formed by laminated plates, rib plates 2 are arranged in the circumferential direction of the base layer 2, the roof structure further comprises a polyurethane foam heat insulation layer 3 sequentially arranged on the base layer 2, a leveling layer 4, a first waterproof layer 6 and a second waterproof layer 7, the roof structure further comprises a pre-buried photovoltaic support 8, the lower end of the photovoltaic support 8 is relatively fixed with the base layer 2 through a structural adhesive 9, and the upper end of the photovoltaic support 8 sequentially penetrates through the heat insulation layer 3, the leveling layer 4, the first waterproof layer 6 and the second waterproof layer 7 and extends out of the second waterproof layer 7.
Ribbed slab 2 (not shown in the figure) is still equipped with in the middle part of basic unit 2, and heat preservation 3, screed-coat 4 are located between circumferential ribbed slab 2, and each ribbed slab 2 in middle part is equallyd divide and is passed heat preservation 3 and screed-coat 4 respectively, and first waterproof layer 6 forms on screed-coat 4 and all ribbed slab 2's upper surface.
By adopting the construction method, compared with the existing roof structure, the roof structure has the following advantages:
1) the leakage rate is low: the traditional roof has high leakage rate because structures such as a light slope finding layer, a block-shaped heat insulation layer and the like are arranged below a roof waterproof layer, and once the waterproof layer has a local problem, water can be accumulated in the slope finding layer and the heat insulation layer, so that the leakage rate is high. The waterproof layer of the invention adopts the polyurethane waterproof coating waterproof layer which has good integrity and is suitable for roof deformation, and is directly constructed on the leveling layer and the rib plate to form integral roof waterproof without water storage risk. Meanwhile, in order to ensure the drainage performance and the heat preservation performance of the whole roof, the polyurethane foam heat preservation layer is innovatively embedded in the precast concrete roof composite slab, and the precast concrete roof composite slab rib is used as a template and an elevation to construct a leveling layer, so that the slope finding effect is achieved. And because the photovoltaic support and the line pipe are buried in advance, the waterproof node is easy to process, and the waterproof reliability is improved.
2) The fireproof performance of the roof is improved: because the heat-insulating layer is embedded in the precast concrete roof composite slab, the fireproof performance of the roof can be greatly improved.
3) Optimizing the structure, reducing the cost and the construction period: the leveling layer and the heat-insulating layer structure layer are all integrated in the precast concrete roof composite slab, so that a large number of building structures are reduced, the manufacturing cost is reduced, and the construction period is shortened.
4) Maintenance is convenient: the roof waterproof layer is a coating exposure method, and thick coating repair can be directly carried out if local leakage occurs in the later period, roof components or structures do not need to be dismantled, and the maintenance is convenient and economical.
5) The power generation efficiency of the photovoltaic module is improved: the outer surface is a white waterproof layer, so that the solar photovoltaic power generation system has good solar reflectivity, can reutilize light energy, and is particularly suitable for a double-glass assembly solar power generation system.
6) Do benefit to photovoltaic module installation: the photovoltaic support that the photovoltaic module support can be direct and bury in advance anchors, and the installation is convenient with the dismantlement, need not the later stage and punches. The wire tube embedded in advance can facilitate the wiring of the electric wire without drilling in the later period.
7) Safety and environmental protection: the photovoltaic support and the photovoltaic module are structurally anchored, and the stability and safety of the photovoltaic component can be ensured under extreme weather such as strong wind. And in the waterproof and other construction processes, harmful solvent volatilization, fire operation and the like are avoided, so that sufficient environmental protection is realized.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The construction method of the waterproof photovoltaic integrated roof is characterized by comprising the following steps:
(1) mounting the precast concrete roof laminated slab to form a base layer with rib plates in the circumferential direction;
(2) mounting a photovoltaic support on the base layer;
(3) spraying a polyurethane foaming material on the base layer, and foaming and forming to form a heat insulation layer;
(4) paving a reinforcing mesh on the heat-insulating layer;
(5) pouring concrete, and leveling the surface to form a concrete leveling layer;
(6) and constructing waterproof paint on the leveling layer to form a waterproof layer.
2. The construction method according to claim 1, characterized in that: in the step (1), when the base layer is constructed, the laminated slab containing the ribbed plate is selected wholly or partially, so that the ribbed plate is contained in the middle of the base layer.
3. The construction method according to claim 1, characterized in that: in the step (1), a slope is formed at the upper end of the rib plate in the circumferential direction, and the slope of the slope is 0.5-2%.
4. The construction method according to claim 1, characterized in that: in the step (2), the photovoltaic support is fixed on the laminated slab of the base layer through structural adhesive or welding, and when reinforcing steel bars are preset on the laminated slab, the photovoltaic support is fixed on the reinforcing steel bars of the laminated slab of the base layer through welding.
5. The construction method according to claim 1, characterized in that: in the step (2), the construction method further comprises a step of installing a spool on the base layer, wherein the spool is fixed on the laminated slab of the base layer through structural glue or welding.
6. The construction method according to claim 1, characterized in that: in the step (5), when the leveling layer is constructed, the upper surface of the leveling layer is flush with the upper surface of the rib plate.
7. The construction method according to claim 1, characterized in that: in the step (5), the construction method further comprises the step of vibrating the concrete after the concrete is poured.
8. The construction method according to claim 1, characterized in that: in the step (6), when the waterproof coating is constructed, the waterproof coating extends to the upper surface of the rib plate from the leveling layer.
9. The construction method according to claim 1, characterized in that: in the step (6), the waterproof coating comprises a first polyurethane waterproof coating and a second polyurethane waterproof coating, the second polyurethane waterproof coating is white exposed polyurethane waterproof coating, when the waterproof coating is constructed, the first polyurethane waterproof coating is constructed on the leveling layer, a first waterproof layer is formed after curing, then the second polyurethane waterproof coating is constructed on the first waterproof layer, and a second waterproof layer is formed after curing.
10. The construction method according to claim 9, wherein: and when the first polyurethane waterproof coating is constructed, the first polyurethane waterproof coating is coated for multiple times, and after the surface of the first polyurethane waterproof coating is dried, polyester fiber mesh cloth is fully paved, and then the next coating is carried out.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111093003.0A CN113668779A (en) | 2021-09-17 | 2021-09-17 | Construction method of waterproof photovoltaic integrated roof |
| PCT/CN2022/108575 WO2023040479A1 (en) | 2021-09-17 | 2022-07-28 | Construction method for waterproof photovoltaic integrated roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111093003.0A CN113668779A (en) | 2021-09-17 | 2021-09-17 | Construction method of waterproof photovoltaic integrated roof |
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| CN115142617A (en) * | 2022-07-06 | 2022-10-04 | 武汉日新科技股份有限公司 | Waterproof mounting method for roof photovoltaic support |
| CN115233898A (en) * | 2022-08-31 | 2022-10-25 | 河北省凤凰谷零碳发展研究院 | BIPV and green building installation method |
| CN115504739A (en) * | 2022-09-27 | 2022-12-23 | 云南欣城防水科技有限公司 | Graphene modified photovoltaic roof high-polymer waterproof coating |
| WO2023040479A1 (en) * | 2021-09-17 | 2023-03-23 | 江苏凯伦建材股份有限公司 | Construction method for waterproof photovoltaic integrated roof |
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| Publication number | Publication date |
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| WO2023040479A1 (en) | 2023-03-23 |
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Application publication date: 20211119 |