CN110670811A - Water-proof method for pitched roof eaves gutter - Google Patents
Water-proof method for pitched roof eaves gutter Download PDFInfo
- Publication number
- CN110670811A CN110670811A CN201910879754.1A CN201910879754A CN110670811A CN 110670811 A CN110670811 A CN 110670811A CN 201910879754 A CN201910879754 A CN 201910879754A CN 110670811 A CN110670811 A CN 110670811A
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- waterproof coating
- coating layer
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- waterproof
- pitched roof
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D7/00—Roof covering exclusively consisting of sealing masses applied in situ; Gravelling of flat roofs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
The invention discloses a waterproof method for a pitched roof eaves gutter, which comprises the following steps: 1) cleaning a sloping roof and a concrete gutter; 2) coating a layer of waterproof coating on the pitched roof and the concrete eaves gutter to form a waterproof coating layer; 3) standing for a certain time after the waterproof coating layer is coated, and coating a layer of weather-resistant coating in the first area of the waterproof coating layer after the waterproof coating layer is shaped to form a weather-resistant coating layer; 4) and covering a layer of dustproof plastic on the second areas of the weather-proof coating layer and the waterproof coating layer, standing for a certain time after the dustproof plastic is covered, and taking away the dustproof plastic after the waterproof coating layer and the weather-proof coating layer are dried. The invention coats waterproof coating and weather-proof coating on the concrete eaves gutter, and can achieve the aim of eaves gutter waterproofing in the simplest and most portable way: waterproof coating plays waterproof sealing's effect to the eaves gutter, and resistant coating of waiting can reduce the environment to waterproof coating's destruction, extension waterproof coating's service life.
Description
Technical Field
The invention relates to the field of house eaves gutter waterproofing, in particular to a waterproofing method for a pitched roof eaves gutter.
Background
The eaves gutter is the catch basin on room eaves limit, can collect the rainwater and make the rainwater overflow to outdoor along the ditch limit. Eaves gutter adopts concrete or metal preparation to form usually, because the easy corrosion of metal eaves gutter, and the metal eaves gutter is assembled to exist that welded joint leaks easily, so eaves gutter product is with the concrete at present mostly.
And the concrete eaves gutter can have the crack possibility of leaking in long-term use, if do not carry out water repellent to it at the eaves gutter building initial stage, under the combined action of outdoor illumination, cold and hot, wind and rain, the concrete eaves gutter can produce crack, pot hole, and when raining, crack, pot hole can amass the rainwater, lead to crack, pot hole to continuously increase to the water collection performance that influences the eaves gutter.
At present to the water repellent of concrete eaves gutter, adopt the eaves gutter to coat one deck waterproof coating or the mode that one deck waterproofing membrane was laid to the eaves gutter usually, but these two kinds of modes have following problem: 1) the mode of coating a layer of waterproof coating on the eaves gutter often needs to cover a concrete protective layer on the surface of the waterproof coating, so that the eaves gutter load is greatly increased; 2) the mode of laying a layer of waterproof coiled material on the eaves gutter can select the exposed waterproof coiled material without covering a concrete protective layer, but the burden of the eaves gutter can be increased because the waterproof coiled material is heavier; the waterproof coiled materials need to be lapped, and a large number of waterproof weak points exist in a plurality of lapping positions, so that the waterproof effect is influenced; in addition, waterproofing membrane self is thicker, and the drainage slope of eaves gutter itself can be eliminated to lapped overlapping department, influences drainage effect.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a waterproof method for a pitched roof eaves gutter, wherein the eaves gutter is arranged on the outer side of the pitched roof and is a concrete eaves gutter; the waterproof method comprises the following steps:
1) the outer surface of the pitched roof and the inner wall and the top wall of the concrete eaves gutter are cleaned, so that the coating effect of the coating is prevented from being influenced by dust and gravel;
2) coating a layer of waterproof coating on the outer surface of the pitched roof and the inner wall and the top wall of the concrete eaves gutter to form a waterproof coating layer; waterproof coating layer includes: a first area covering the inner wall and the top wall of the concrete eaves gutter, and a second area covering the outer surface of the pitched roof;
3) standing for a certain time after the waterproof coating layer is coated, and coating a layer of weather-resistant coating in the first area of the waterproof coating layer after the waterproof coating layer is shaped to form a weather-resistant coating layer;
4) in order to avoid dust falling in the air drying process of the weather-proof coating layer and the waterproof coating layer, a layer of dustproof plastic is covered on the second areas of the weather-proof coating layer and the waterproof coating layer, the second areas are kept stand for a certain time after the dustproof plastic is covered, and the dustproof plastic is taken away after the waterproof coating layer and the weather-proof coating layer are dried.
The invention coats waterproof coating and weather-proof coating on the concrete eaves gutter, and can achieve the aim of eaves gutter waterproofing in the simplest and most portable way: waterproof coating (first region) plays waterproof sealed effect to the eaves gutter, and resistant coating of waiting can reduce the environment to the destruction of waterproof coating (first region), prolongs the life of waterproof coating (first region).
Compared with the existing mode of coating a layer of waterproof coating on the eaves gutter, the method can avoid the problem that the eaves gutter load is greatly increased due to the fact that a concrete protective layer is covered on the surface of the waterproof coating.
Compared with the existing mode of paving a layer of waterproof coiled material on the gutter, the invention can avoid the problems caused by the adoption of the waterproof coiled material because the waterproof coiled material is not needed.
Preferably, the second area of the waterproof coating layer is covered with a heat insulation layer, the water absorption rate of the heat insulation layer is low, in order to avoid the reduction of the heat insulation effect after the heat insulation layer is soaked in water, a plurality of inclined water guide pipes are vertically arranged at the joint part of the concrete eaves gutter and the sloping roof, the plurality of water guide pipes are sequentially arranged along the extension direction of the concrete eaves gutter, the top ends of the water guide pipes extend to the heat insulation layer respectively, and the bottom ends of the water guide pipes extend into the concrete eaves gutter respectively; the aqueduct can lead the liquid water or the steam possibly existing in the heat preservation layer to the eaves gutter so as to ensure the heat preservation effect of the heat preservation layer.
Preferably, cover the building structure on tile or other roofs on the heat preservation, and erect at the surface of sloping roof and put many reinforcing bars, these many reinforcing bars run through waterproof coating's second region and heat preservation respectively, through the building structure on the tile or other roofs of placing on the fixed sloping roof of reinforcing bar, these building mechanism itself just can play fine weather-resistant effect, reduce the erosion of environment to waterproof coating promptly, so the surface of sloping roof only need the cover coat one deck waterproof coating (second region) can, waterproof coating's second region does not cover weather-resistant coating.
Preferably, in the step 3), the waterproof coating layer is kept stand for 24-36 hours after being coated; and in the step 4), standing for 12-24 hours after the dustproof plastic is covered.
Preferably, the thickness of the waterproof coating layer is 1.5-3 mm; the thickness of the weather-resistant coating is 0.08-0.12 mm.
Preferably, the waterproof coating is a polyurethane waterproof coating.
Preferably, the polyurethane waterproof coating is prepared by mixing the following components: 5-8 parts by mass of isocyanate, 21-27 parts by mass of polyether polyol, 15-22 parts by mass of plasticizer, 0.03-0.1 part by mass of dispersant, 35-50 parts by mass of filler, 0.05-0.2 part by mass of dehydrating agent, 0.5-2 parts by mass of thixotropic agent, 0.03-0.2 part by mass of catalyst, 0.2-1 part by mass of defoaming agent and 0-15 parts by mass of solvent.
Preferably, the isocyanate is selected from one or two of diphenyl, methane diisocyanate and toluene diisocyanate; the polyether polyol is selected from one or more of polyether, dihydric alcohol and polyether trihydric alcohol; the plasticizer is selected from one or more of DINP, DIDP, chlorinated paraffin and polyol ester.
The polyurethane waterproof coating is called as 'liquid rubber', is one of waterproof materials with the best waterproof quality internationally acknowledged, and the waterproof performance of the polyurethane waterproof coating is mainly influenced by three indexes of tensile strength, elongation at break and bonding strength; the physical property index of the polyurethane waterproof coating meets and is higher than the related index requirements of national standard GB/T19250 plus 2013 polyurethane waterproof coating, wherein the tensile strength and the elongation at break are tested according to GB/T16777-2008 chapter 9, and the tensile strength of the polyurethane waterproof coating is measured to be 2.52MPa (the national standard requirement is more than or equal to 2.0 MPa) and the elongation at break is 679% (the national standard requirement is more than or equal to 500%), and the good tensile property can resist the damage of structural cracking and deformation to a coating film, so that the strength and the waterproofness of the polyurethane waterproof coating are ensured; the bonding strength performance is tested according to the method A in GB/T16777-.
Preferably, the weather-resistant coating is aliphatic polyurethane weather-resistant waterproof coating.
Preferably, the concrete gutter has a slope of 1% to 3%.
Drawings
FIG. 1 is a schematic of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, the invention provides a method for preventing water of a pitched roof gutter, wherein the gutter 2 is arranged outside the pitched roof 1, and the gutter 2 is a concrete gutter; the waterproof method comprises the following steps:
1) the outer surface of the pitched roof 1 and the inner wall and the top wall of the eaves gutter 2 are cleaned, so that the coating effect of the coating is prevented from being influenced by dust and gravel;
2) coating a layer of polyurethane waterproof coating on the outer surface of the pitched roof 1 and the inner wall and the top wall of the eaves gutter 2 to form a waterproof coating layer 3 with the thickness of 1.5-3 mm (preferably 2 mm); the waterproof coating layer 3 includes: a first zone 31 covering the inner and top walls of the gutter 2, and a second zone 32 covering the outer surface of the pitched roof 1;
the polyurethane waterproof coating is prepared by mixing the following components: 5-8 parts by mass of isocyanate, 21-27 parts by mass of polyether polyol, 15-22 parts by mass of plasticizer, 0.03-0.1 part by mass of dispersant, 35-50 parts by mass of filler, 0.05-0.2 part by mass of dehydrating agent, 0.5-2 parts by mass of thixotropic agent, 0.03-0.2 part by mass of catalyst, 0.2-1 part by mass of defoaming agent and 0-15 parts by mass of solvent;
the isocyanate is selected from one or two of diphenyl, methane diisocyanate and toluene diisocyanate; the polyether polyol is selected from one or more of polyether, dihydric alcohol and polyether trihydric alcohol; the plasticizer is selected from one or more of DINP, DIDP, chlorinated paraffin and polyol ester;
3) standing for a certain time (24-36 h) after the waterproof coating layer 3 is coated, and coating a layer of aliphatic polyurethane weather-resistant waterproof coating on the first area 31 of the waterproof coating layer 3 after the waterproof coating layer 3 is shaped to form a weather-resistant coating layer 4 with the thickness of 0.08-0.12 mm (preferably 0.1 mm);
4) in order to avoid dust falling in the air drying process of the weather-proof coating layer 4 and the waterproof coating layer 3, a layer of dustproof plastic is covered on the weather-proof coating layer 4 and the second area 32 of the waterproof coating layer 3, the second area is kept stand for a certain time (12-24 hours) after the dustproof plastic is covered, and the dustproof plastic is taken away after the waterproof coating layer 3 and the weather-proof coating layer 4 are dried.
The invention coats the gutter 2 with a waterproof coating and a weather-proof coating, and can achieve the aim of gutter waterproofing in the simplest and most portable mode: waterproof coating (first region 31) plays waterproof sealed effect to the eaves gutter, and resistant coating of waiting can reduce the environment to the destruction of waterproof coating (first region 31), prolongs the life of waterproof coating (first region 31).
Compared with the existing mode of coating a layer of waterproof coating on the eaves gutter, the method can avoid the problem that the eaves gutter load is greatly increased due to the fact that a concrete protective layer is covered on the surface of the waterproof coating.
Compared with the existing mode of paving a layer of waterproof coiled material on the gutter, the invention can avoid the problems caused by the adoption of the waterproof coiled material because the waterproof coiled material is not needed.
The polyurethane waterproof coating is called as 'liquid rubber', is one of waterproof materials with the best waterproof quality internationally acknowledged, and the waterproof performance of the polyurethane waterproof coating is mainly influenced by three indexes of tensile strength, elongation at break and bonding strength; the physical property index of the polyurethane waterproof coating meets and is higher than the related index requirements of national standard GB/T19250 plus 2013 polyurethane waterproof coating, wherein the tensile strength and the elongation at break are tested according to GB/T16777-2008 chapter 9, and the tensile strength of the polyurethane waterproof coating is measured to be 2.52MPa (the national standard requirement is more than or equal to 2.0 MPa) and the elongation at break is 679% (the national standard requirement is more than or equal to 500%), and the good tensile property can resist the damage of structural cracking and deformation to a coating film, so that the strength and the waterproofness of the polyurethane waterproof coating are ensured; the bonding strength performance is tested according to the method A in GB/T16777-.
Furthermore, a heat insulation layer (not shown in the figure) can be covered on the second area 32 of the waterproof coating layer 3, the water absorption rate of the heat insulation layer is low, in order to avoid the reduction of the heat insulation effect after the heat insulation layer is soaked in water, a plurality of inclined water guide pipes 5 are vertically arranged at the joint part of the eaves gutter 2 and the sloping roof 1, the plurality of water guide pipes 5 are sequentially arranged along the extension direction of the eaves gutter 2, the top ends of the water guide pipes 5 respectively extend to the heat insulation layer, and the bottom ends of the water guide pipes 5 respectively extend into the eaves gutter 2; the water guide pipe 5 can guide liquid water or water vapor possibly existing in the heat insulation layer to the eaves gutter so as to ensure the heat insulation effect of the heat insulation layer.
Furthermore, can cover the building structure on tile or other roofs on the heat preservation, and erect a plurality of reinforcing bars 6 at the surface of pitched roof 1, this a plurality of reinforcing bars 6 run through waterproof coating layer 3's second region 32 and heat preservation respectively, through the building structure on the tile or other roofs of placing on the fixed pitched roof 1 of reinforcing bar 6, these building structure itself just can play fine weather resistant effect, reduce the erosion of environment to waterproof coating promptly, so the surface of pitched roof 1 only need the cover coat one deck waterproof coating (second region 32) can, waterproof coating's second region 32 need not cover weather resistant coating.
As is well known, in order to provide a good flow guiding effect for the gutter, a certain gradient is specially generated on the surface of the gutter when the gutter is constructed and manufactured, so that rainwater can flow into a flow guiding pipeline; the gutter 2 in the present invention has a slope of 1% to 3% (preferably, a slope of 3%).
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The method for preventing the water of the eaves gutter of the pitched roof comprises the following steps that the eaves gutter is arranged on the outer side of the pitched roof and is a concrete eaves gutter; the waterproof method is characterized by comprising the following steps:
1) cleaning the outer surface of the pitched roof, the inner wall and the top wall of the concrete eaves gutter;
2) coating a layer of waterproof coating on the outer surface of the pitched roof and the inner wall and the top wall of the concrete eaves gutter to form a waterproof coating layer; waterproof coating layer includes: a first area covering the inner wall and the top wall of the concrete eaves gutter, and a second area covering the outer surface of the pitched roof;
3) standing for a certain time after the waterproof coating layer is coated, and coating a layer of weather-resistant coating in the first area of the waterproof coating layer after the waterproof coating layer is shaped to form a weather-resistant coating layer;
4) and covering a layer of dustproof plastic on the second areas of the weather-proof coating layer and the waterproof coating layer, standing for a certain time after the dustproof plastic is covered, and taking away the dustproof plastic after the waterproof coating layer and the weather-proof coating layer are dried.
2. The waterproof method for the pitched roof gutter according to claim 1, wherein in the step 3), the waterproof coating layer is kept stand for 24-36 hours after being coated; and in the step 4), standing for 12-24 hours after the dustproof plastic is covered.
3. The method for preventing water of a pitched roof gutter according to claim 1, wherein the thickness of the waterproof coating layer is 1.5-3 mm; the thickness of the weather-resistant coating is 0.08-0.12 mm.
4. The method of waterproofing a pitched roof gutter according to claim 1, wherein the waterproof coating is a polyurethane waterproof coating.
5. The method for waterproofing a pitched roof gutter according to claim 4, wherein the polyurethane waterproof coating is prepared by mixing the following components: 5-8 parts by mass of isocyanate, 21-27 parts by mass of polyether polyol, 15-22 parts by mass of plasticizer, 0.03-0.1 part by mass of dispersant, 35-50 parts by mass of filler, 0.05-0.2 part by mass of dehydrating agent, 0.5-2 parts by mass of thixotropic agent, 0.03-0.2 part by mass of catalyst, 0.2-1 part by mass of defoaming agent and 0-15 parts by mass of solvent.
6. The method for waterproofing a pitched roof gutter according to claim 5, wherein the isocyanate is selected from one or two of diphenyl, methane diisocyanate, toluene diisocyanate; the polyether polyol is selected from one or more of polyether, dihydric alcohol and polyether trihydric alcohol; the plasticizer is selected from one or more of DINP, DIDP, chlorinated paraffin and polyol ester.
7. The method of waterproofing a pitched roof gutter according to claim 1, wherein the weatherable coating is an aliphatic polyurethane weatherable waterproof coating.
8. The method for preventing water of a pitched roof gutter as claimed in claim 1, wherein the second region of the waterproof coating layer is covered with an insulating layer, a plurality of inclined water conduits are vertically arranged at the joint of the concrete gutter and the pitched roof, the plurality of inclined water conduits are sequentially arranged along the extension direction of the concrete gutter, the top ends of the water conduits respectively extend to the insulating layer, and the bottom ends of the water conduits respectively extend into the concrete gutter.
9. A method of waterproofing a pitched roof gutter as claimed in claim 8, wherein the insulation layer is covered with tiles or other roof building structures, and a plurality of reinforcing bars are erected on the outer surface of the pitched roof, penetrating the second zone of the waterproof coating layer and the insulation layer, respectively, to fix the tiles or other roof building structures by means of the reinforcing bars.
10. A method of waterproofing a pitched roof gutter as claimed in claim 1, wherein said concrete gutter has a slope of 1% to 3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910879754.1A CN110670811A (en) | 2019-09-18 | 2019-09-18 | Water-proof method for pitched roof eaves gutter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910879754.1A CN110670811A (en) | 2019-09-18 | 2019-09-18 | Water-proof method for pitched roof eaves gutter |
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| CN110670811A true CN110670811A (en) | 2020-01-10 |
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| CN201910879754.1A Pending CN110670811A (en) | 2019-09-18 | 2019-09-18 | Water-proof method for pitched roof eaves gutter |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207211469U (en) * | 2017-08-03 | 2018-04-10 | 陕西中畅防排水技术有限公司 | A kind of ZCP pitched roofs energy-saving system structure |
| 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 |
| 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 |
| CN109554101A (en) * | 2018-11-15 | 2019-04-02 | 唐山东方雨虹防水技术有限责任公司 | A kind of polyurethane water-proof paint |
| CN110512808A (en) * | 2019-08-09 | 2019-11-29 | 江苏凯伦建材股份有限公司 | The waterproof construction and its construction method of pitched roof eaves gutter |
-
2019
- 2019-09-18 CN CN201910879754.1A patent/CN110670811A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207211469U (en) * | 2017-08-03 | 2018-04-10 | 陕西中畅防排水技术有限公司 | A kind of ZCP pitched roofs energy-saving system structure |
| 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 |
| CN109554101A (en) * | 2018-11-15 | 2019-04-02 | 唐山东方雨虹防水技术有限责任公司 | A kind of polyurethane water-proof paint |
| 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 |
| CN110512808A (en) * | 2019-08-09 | 2019-11-29 | 江苏凯伦建材股份有限公司 | The waterproof construction and its construction method of pitched roof eaves gutter |
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Application publication date: 20200110 |