CN110512808B - Waterproof structure of pitched roof eaves gutter and construction method thereof - Google Patents
Waterproof structure of pitched roof eaves gutter and construction method thereof Download PDFInfo
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- CN110512808B CN110512808B CN201910732999.1A CN201910732999A CN110512808B CN 110512808 B CN110512808 B CN 110512808B CN 201910732999 A CN201910732999 A CN 201910732999A CN 110512808 B CN110512808 B CN 110512808B
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- waterproof
- coating
- gutter
- pitched roof
- eaves gutter
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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
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/064—Gutters
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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
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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
Abstract
The invention discloses a waterproof structure of a pitched roof eaves gutter, which comprises an inclined pitched roof and the eaves gutter fixed on the outer side of the pitched roof, wherein two layers of coatings are coated on the surface of the eaves gutter, the bottom layer is made of waterproof coatings and is in direct contact with the concrete surface of the eaves gutter, and the other layer is made of weather-resistant coatings coated on the upper layer of the waterproof coatings; the waterproof coating is polyurethane waterproof coating and completely covers the upper surface of the eaves gutter; the weather-resistant coating is aliphatic polyurethane weather-resistant waterproof coating, and the upper surface of the waterproof coating is completely coated by the weather-resistant waterproof coating. The invention has the beneficial effects that the polyurethane waterproof coating is coated on the surface layer of the eaves gutter, the polyurethane waterproof coating is shaped, and then a weather-resistant coating is coated on the surface of the waterproof coating, so that the waterproof coating has a waterproof and sealing effect on the eaves gutter, the weather-resistant coating can reduce the damage of the environment to the waterproof coating and prolong the service life of the waterproof coating.
Description
Technical Field
The invention relates to the field of house eaves gutter waterproofing, in particular to a waterproof structure of a pitched roof eaves gutter and a construction method thereof.
Background
The eaves gutter is the catch basin on room eaves limit, collects the rainwater and makes the rainwater overflow to outdoor along the ditch limit through long unilateral. The eaves gutter is usually made of concrete or metal, and because the metal is easy to rust and the welded joints are easy to leak water due to splicing, the eaves gutter products are mostly made of concrete at present. In the case of a concrete gutter, in the long-term use process, cracks and water leakage may occur, and if the gutter is not subjected to waterproof treatment in the initial stage of construction, cracks or other damage may occur under the comprehensive damage of outdoor illumination, cold and hot weather, so that cracks or pits appear on the surface of the gutter, and rainwater is accumulated in the position during rain, so that the cracks or pits are continuously increased, and the future water collection performance of the gutter is affected.
Among the existing construction project, the construction mode to eaves gutter is usually the mode of adopting the coating of one deck coating or laying one deck waterproofing membrane, but these two kinds of modes have following problem: for the way of coating a layer of coating, a concrete protective layer is often required to be covered on the surface of the coating, so that the load is greatly increased, and the extra expense is increased; and to the mode of laying one deck waterproofing membrane, although can select can expose waterproofing membrane, and need not to cover the concrete protection layer, nevertheless because waterproofing membrane's self is heavier, to the eaves gutter that does not have any steelframe to support, this mode of setting up can increase the burden of eaves gutter wall body, and bigger problem is, waterproofing membrane is because the overlap joint has a large amount of waterproof weak points, influences water-proof effects. In addition, the coiled material is thicker, and the drainage gradient of the eaves gutter is eliminated by overlapping during lapping, so that the drainage effect is influenced.
Disclosure of Invention
The invention aims to solve the problems in the prior construction technical scheme and designs a waterproof structure of a pitched roof eaves gutter and a construction method thereof.
The technical scheme of the invention is that the waterproof structure of the pitched roof eave comprises an inclined pitched roof and an eave fixed on the outer side of the pitched roof, wherein two layers of coatings are coated on the surface of the eave, the bottom layer is made of waterproof coatings and is in direct contact with the concrete surface of the eave, and the other layer is made of weather-resistant coatings and is coated on the upper layer of the waterproof coatings.
There is provided a two-coat usable material, the waterproof coating being a polyurethane waterproof coating which completely coats the upper surface of the gutter; the weather-resistant coating is aliphatic polyurethane weather-resistant waterproof coating, and the upper surface of the waterproof coating is completely coated by the weather-resistant waterproof coating.
As an alternative, the exterior surface of the pitched roof is coated with and only one layer of waterproof paint.
As a preferable embodiment of the coating thickness of the waterproof coating material, the coating thickness of the waterproof coating material is in the range of 1.5 to 3mm, and the thickness of the weather-resistant coating material is in the range of 0.08 to 0.12 mm.
As another embodiment of the coating thickness of the waterproof coating material, the coating thickness of the waterproof coating material is preferably 2mm, and the thickness of the weather-resistant coating material is preferably 0.1 mm.
As a preferred embodiment of the gutter making slope, the gutter has a slope of 1% to 5%, and preferably a slope of 3%.
The following provides a matching mode of the polyurethane waterproof coating, and the matching of the polyurethane waterproof coating is (by mass percent): 5-8% of isocyanate; 21-27% of polyether polyol; 15-22% of a plasticizer; 0.03-0.1% of a dispersant; 35-50% of a filler; 0.05 to 0.2 percent of dehydrating agent; 0.5-2% of thixotropic agent; 0.03-0.2% of a catalyst; 0.2-1% of defoaming agent; 0-15% of a solvent; the polyether polyol is one or a combination of more of polyether, dihydric alcohol and polyether trihydric alcohol, the isocyanate is one or a combination of two of diphenyl, methane diisocyanate and toluene diisocyanate, and the plasticizer is one or a combination of more of DINP, DIDP, chlorinated paraffin and polyol ester.
The following provides a construction method of a sloping roof eaves gutter waterproof structure:
s1, cleaning a surface to be constructed: cleaning the upper surfaces of the pitched roof and the gutter to prevent dust from remaining on the pitched roof and the gutter from affecting the coating effect of the coating;
s2, coating a waterproof coating: firstly coating a layer of polyurethane waterproof coating with the thickness of 2mm on the sloping roof and the upper surface of the eaves gutter, standing for 24-36h, and then coating a layer of aliphatic weather-resistant waterproof coating with the thickness of not less than 0.1mm on the polyurethane waterproof coating of the eaves gutter;
s3, drying the waterproof coating: covering a layer of dustproof plastic on the upper surfaces of the pitched roof and the gutter, standing for 12-24h, drying the waterproof coating, and taking away the dustproof plastic.
The invention has the beneficial effects that the aim of preventing the eaves gutter from being waterproof in the simplest and most light way is fulfilled by respectively coating the waterproof coating and the weather-resistant coating on the surface of the eaves gutter. Treat its design at the top layer coating one deck polyurethane waterproof coating of eaves gutter, then weather resistant coating of surface coating one deck at waterproof coating, waterproof coating plays waterproof sealing's effect to the eaves gutter, and weather resistant coating can reduce the environment and to waterproof coating's destruction, prolongs waterproof coating's service life, compares with current eaves gutter waterproof mode, has avoided additionally increasing the problem that protective layer and self carried the load.
Drawings
FIG. 1 is a schematic view of the overall structure of a gutter of the present invention after it has been coated with a water repellent coating;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
in the figure, 1, a sloping roof; 2. eaves gutter; 3. a water guide hollow pipe; 4. MPU white polyurethane waterproof coating; 5. EPU aliphatic polyurethane weather-resistant waterproof coating.
Detailed Description
Firstly, the design concept of the invention is explained: modern buildings are mostly concrete buildings, in the process of building construction, a main body of the concrete building is supported by a steel reinforcement framework, a gutter can be built at the position of an eave of the concrete building after the building main body is built, rainwater is gathered in the rainwater days and is guided to pipelines on two sides, however, the gutter body is made of concrete, if no measures are added, cracks or holes can be generated on the surface of the gutter body under long-term environmental erosion, the cracks or holes can accumulate water in the rainwater weather, further cracks are enlarged, the gutter can not play a role in water collection and guide in the past, on the contrary, the gutter can seep water, harm is generated on the wall body of the concrete building, and in order to avoid the situation, waterproof materials can be added on the surface of the gutter to carry out waterproof treatment on the gutter building. The conventional treatment method comprises the following two methods, wherein one method comprises the steps of coating a layer of waterproof coating on the surface of the eaves gutter, and then constructing a concrete protective layer on the surface of the waterproof coating for protecting a waterproof layer formed by the waterproof coating from being damaged by the environment; and another method is that a layer of waterproof coiled material is directly paved on the surface of the eaves gutter, the self weight of the waterproof coiled material is known to be larger, the building life of the eaves gutter can be shortened due to the use of the waterproof coiled material which is added to the eaves gutter without any reinforcing steel bar support due to the overlapping, and the larger problem is that the waterproof effect is influenced due to the fact that a large number of waterproof weak points exist in the overlapping of the waterproof coiled material. In addition, the coiled material is thicker, and the drainage gradient of the eaves gutter is eliminated by overlapping during lapping, so that the drainage effect is influenced. Taken together, these two types of existing
The construction methods of the invention all have improper places, therefore, the invention provides a new eaves gutter implementation scheme to optimize the existing waterproof construction method.
The present invention is described in detail with reference to the accompanying drawings, as shown in fig. 1, in order to make the technical solution fully understood by those skilled in the art, the illustrated structure is described, the illustrated eaves gutter 2 of the pitched roof 1 includes an inclined pitched roof 1, the eaves gutter 2 fixed on the outer side of the pitched roof 1, a waterproof layer is constructed on the pitched roof structure, a block-shaped insulating layer with low water absorption rate is constructed on the waterproof layer, in order to avoid the reduction of the insulating effect after the insulating layer is soaked in water, a water guiding hollow pipe 3 is arranged between the insulating layer of the pitched roof 1 and the eaves gutter 2, and is used for guiding liquid water or water vapor possibly existing in the insulating layer of the pitched roof 1 to the eaves gutter 2, and then the liquid water or water vapor flows to the drainage pipe through the eaves gutter 2. The sloping roof 1 is also provided with a number of reinforcing bars for fixing the objects placed on the sloping roof 1, such as tiles or other building structures on the roof.
Based on the pitched roof 1 structure and shown in the attached drawings 1-3, the structure of the technical scheme of the invention is explained below, wherein two layers of coating are coated on the surface of the eaves gutter 2, the bottom layer is waterproof coating which is in direct contact with the concrete surface of the eaves gutter 2, and the upper layer is weather-resistant coating. Specifically, the coating can be made of MPU white polyurethane waterproof coating 4, and during construction and coating, the waterproof coating needs to completely coat the upper surface of the eaves gutter 2 so as to achieve good waterproof effect of the eaves gutter 2; for the weather-resistant coating, the EPU aliphatic polyurethane weather-resistant waterproof coating 5 can be adopted and completely coated on the upper surface of the white polyurethane waterproof coating, the two coatings can achieve the purpose of the eaves gutter 2 mode, and the difference is that the MPU white polyurethane waterproof coating 4 has better waterproof performance but poorer weather resistance, and the EPU aliphatic polyurethane weather-resistant waterproof coating 5 has better weather resistance and poorer waterproof performance, so that the combination of the two waterproof coatings can ensure that the eaves gutter 2 is waterproof and has good weather resistance at the same time.
The upper surface is a waterproof coating mode for the house eaves gutter 2, and for the waterproof mode for the sloping roof 1, as the sloping roof 1 can be usually provided with tiles or other building structures, the building structures can have good weather-proof effect, namely, the corrosion effect of the environment on the waterproof coating is reduced, so that for the sloping roof 1, only one MPU white polyurethane waterproof coating 4 needs to be coated on the outer surface of the sloping roof 1.
In the actual waterproof construction operation, the coating thickness of the waterproof coating can be different for eaves gutter 2 with different areas or waterproof requirements, the long-term practical construction operation experience judges that the coating thickness of the waterproof coating can be between 1.5 and 3mm, the thickness of the eaves gutter 2 with high waterproof requirements can be properly increased, the corresponding thickness of the weather-resistant coating can be between 0.08 and 0.12mm, and the coating thickness of the weather-resistant coating can be properly increased for the poor environment where the eaves gutter 2 is located. Generally, for the construction method without any construction experience or without judging the specific construction mode, a general construction preferable scheme is provided, namely the coating thickness of the waterproof coating is 2mm, and the coating thickness of the weather-resistant coating is 0.1 mm.
It is known that, in order to make the gutter 2 have a good flow guiding effect, the surface of the gutter 2 is specially provided with a certain gradient during the construction and manufacturing of the gutter 2, so that rainwater can flow into the drainage pipeline, and as a certain description is given to the gradient of the gutter 2, the gutter 2 may have a gradient of 1% -5%, and a preferred gradient is 3%.
The following provides a concrete way for the proportioning components of the polyurethane waterproof coating, and the proportioning of the polyurethane waterproof coating is (by mass percent): 5-8% of isocyanate; 21-27% of polyether polyol; 15-22% of a plasticizer; 0.03-0.1% of a dispersant; 35-50% of a filler; 0.05 to 0.2 percent of dehydrating agent; 0.5-2% of thixotropic agent; 0.03-0.2% of a catalyst; 0.2-1% of defoaming agent; 0-15% of a solvent; the polyether polyol is one or a combination of more of polyether, dihydric alcohol and polyether trihydric alcohol, the isocyanate is one or a combination of two of diphenyl, methane diisocyanate and toluene diisocyanate, and the plasticizer is one or a combination of more of DINP, DIDP, chlorinated paraffin and polyol ester.
The above description is all the structural style of eaves gutter 2, and the following provides a concrete construction method corresponding to the eaves gutter 2 waterproof structure of the upper slope roof 1:
s1, cleaning a surface to be constructed: cleaning the upper surfaces of the pitched roof 1 and the gutter 2 to prevent dust from remaining on the upper surfaces to influence the coating effect of the coating;
s2, coating a waterproof coating: firstly coating a layer of MPU white polyurethane waterproof coating 4 with the thickness of 2mm on the upper surfaces of the pitched roof 1 and the eaves gutter 2, standing for 24-36h and the like for complete curing, and then coating a layer of EPU aliphatic polyurethane weather-resistant waterproof coating 5 with the thickness of not less than 0.1mm on the polyurethane waterproof coating of the eaves gutter 2;
s3, drying the waterproof coating: a layer of dustproof plastic can be covered on the upper surfaces of the pitched roof 1 and the gutter 2, and after the water-proof paint is dried after the water-proof paint is stood for 12 to 24 hours, the dustproof plastic is taken away. The working principle is as follows:
the working principle of the invention is that the eaves gutter 2 body is made of concrete, if no measures are taken, cracks or holes can be generated on the surface of the eaves gutter 2 body under the long-term environmental erosion, and the eaves gutter 2 cannot play the role of water collection and diversion in the past. The conventional treatment method mainly comprises the steps of smearing a layer of waterproof paint on the surface of the eaves gutter 2, and then constructing a concrete protective layer on the surface of the waterproof paint; and another method is that a layer of waterproof coiled material is directly paved on the surface of the eaves gutter 2, the self weight of the waterproof coiled material is large, and the eaves gutter 2 is not supported by steel bars, so that the building life of the eaves gutter 2 can be shortened. The greater problem is that the waterproof roll has a great number of waterproof weak points due to overlapping, and the waterproof effect is affected. In addition, the coiled material is thicker, and the drainage gradient of the eaves gutter is eliminated by overlapping during lapping, so that the drainage effect is influenced. The invention realizes the waterproofing of the eaves gutter 2 by coating two layers of waterproof coatings on the surface of the eaves gutter 2, and the specific method comprises the following steps: firstly, cleaning the upper surfaces of the pitched roof 1 and the gutter 2 to prevent dust from remaining on the upper surfaces to influence the coating effect of the coating; then coating a layer of MPU white polyurethane waterproof coating 4 with the thickness of 2mm on the upper surfaces of the pitched roof 1 and the eaves gutter 2, standing for 24-36h and the like for complete curing, and then coating a layer of EPU aliphatic polyurethane weather-resistant waterproof coating 5 with the thickness of not less than 0.1mm on the MPU white polyurethane waterproof coating 4 of the eaves gutter 2; in order to avoid dust falling in the air drying process, a layer of dustproof plastic can be covered on the upper surfaces of the pitched roof 1 and the eaves gutter 2, after the waterproof paint is dried after standing for 12-24 hours, the dustproof plastic is taken away, and then the waterproof construction process of the eaves gutter 2 is completed.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (8)
1. The waterproof structure of the pitched roof eaves gutter comprises an inclined pitched roof and the eaves gutter fixed on the outer side of the pitched roof, and is characterized in that two layers of coatings are coated on the surface of the eaves gutter, wherein the bottom layer is made of waterproof coatings and is in direct contact with the concrete surface of the eaves gutter, and the other layer is made of weather-resistant coatings and is coated on the upper layer of the waterproof coatings;
the polyurethane waterproof coating comprises the following components in percentage by mass: 5-8% of isocyanate; 21-27% of polyether polyol; 15-22% of a plasticizer; 0.03-0.1% of a dispersant; 35-50% of a filler; 0.05 to 0.2 percent of dehydrating agent; 0.5-2% of thixotropic agent; 0.03-0.2% of a catalyst; 0.2-1% of defoaming agent; 0-15% of a solvent;
the polyether polyol is one or the combination of more of polyether, dihydric alcohol and polyether trihydric alcohol, the isocyanate is one or the combination of two of diphenyl, methane diisocyanate and toluene diisocyanate, and the plasticizer is one or the combination of more of DINP, DIDP, chlorinated paraffin and polyol ester.
2. The waterproof structure of a pitched roof gutter according to claim 1, wherein the waterproof paint is polyurethane waterproof paint and completely covers the upper surface of the gutter; the weather-resistant coating is aliphatic polyurethane weather-resistant waterproof coating, and the upper surface of the waterproof coating is completely coated by the weather-resistant waterproof coating.
3. The waterproofing structure for pitched roof eaves gutter according to claim 1, wherein the outer surface of the pitched roof is coated with only one layer of waterproof coating.
4. The waterproof structure of a pitched roof gutter as claimed in claim 1, wherein the waterproof coating is coated in a thickness of 1.5 to 3mm and the weather-resistant coating is coated in a thickness of 1 to 1.5 mm.
5. The waterproof structure of a pitched roof gutter as claimed in claim 4, wherein the waterproof coating is coated in a thickness of 2mm and the weather-resistant coating is coated in a thickness of 1 mm.
6. A water-proof structure of a pitched roof gutter as claimed in claim 1, characterized in that the gutter has a slope of 1% to 5%, and preferably a slope of 3%.
7. The construction method of the pitched roof gutter waterproof structure according to claim 1,
s1, cleaning a surface to be constructed: cleaning the upper surfaces of the pitched roof and the gutter to prevent dust from remaining on the pitched roof and the gutter from affecting the coating effect of the coating;
s2, coating a waterproof coating: firstly coating a layer of polyurethane waterproof coating with the thickness of 2mm on the sloping roof and the upper surface of the eaves gutter, standing for 10-20min, and then coating a layer of aliphatic weather-resistant waterproof coating with the thickness of not less than 0.1mm on the polyurethane waterproof coating of the eaves gutter;
s3, drying the waterproof coating: covering a layer of dustproof plastic on the upper surfaces of the pitched roof and the gutter, standing for 3-5min and the like, and taking away the dustproof plastic after the waterproof coating is dried.
8. The construction method of the pitched roof gutter waterproof structure according to the claim 7, wherein the standing time after the polyurethane waterproof coating is coated is 10-20min in the step S2, and the standing time after the dustproof plastic layer is covered is 3-5min in the step S3.
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| CN110551445A (en) * | 2019-09-18 | 2019-12-10 | 江苏凯伦建材股份有限公司 | Water-repellent coating and use thereof |
| CN110670811A (en) * | 2019-09-18 | 2020-01-10 | 江苏凯伦建材股份有限公司 | Water-proof method for pitched roof eaves gutter |
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| CN107461008A (en) * | 2016-06-02 | 2017-12-12 | 宜兴市周铁镇生力钻探机械厂 | A kind of Techniques of Roof Waterproof Construction |
| CN208088691U (en) * | 2018-04-04 | 2018-11-13 | 苏州规划设计研究院股份有限公司 | A kind of internal drainage traditional architecture inclined roof construction in a organized way |
| CN208844817U (en) * | 2018-07-19 | 2019-05-10 | 常州市武进建筑设计院有限公司 | The insulation construction of saddle plate roofing |
| CN208701924U (en) * | 2018-08-02 | 2019-04-05 | 上海平耐实业有限公司 | A kind of multi-functional roof waterproof coating |
| CN109457879A (en) * | 2018-12-27 | 2019-03-12 | 广州市明煌保温节能材料有限公司 | A kind of roofing waterproof heat insulation integrated material and its spray paint and its manufacturing process |
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Effective date of registration: 20211207 Address after: 438000 No. 22, yangyingling Avenue (formerly Yingling No. 2), Railway Station Economic Development Zone, Huangzhou District, Huanggang City, Hubei Province Patentee after: Huanggang Kailun New Material Co.,Ltd. Address before: 215000 8 Hengtong Avenue, Qidu Town, Wujiang District, Suzhou City, Jiangsu Province Patentee before: JIANGSU CANLON BUILDING MATERIALS Co.,Ltd. |