阅读说明：本技术 坡屋面檐沟的防水结构及其施工方法 (The waterproof construction and its construction method of pitched roof eaves gutter ) 是由 姚壮志 陈斌 况彬彬 邓居兵 于 2019-08-09 设计创作，主要内容包括：本发明公开了坡屋面檐沟的防水结构,包括倾斜的坡屋面,固定于坡屋面外侧的檐沟,檐沟的表面上涂覆有两层涂料,其中底层为防水涂料且与檐沟的混凝土表面直接接触,另一层为耐候涂料涂覆于防水涂料上层；防水涂料为聚氨酯防水涂料,且其完全包覆檐沟的上表面；耐候涂料为脂肪族聚氨酯耐候防水涂料,且其完全包覆防水涂料的上表面。本发明的有益效果是,本发明通过在檐沟的表层涂覆一层聚氨酯防水涂料,待其定型,然后在防水涂料的表面涂覆一层耐候涂料,防水涂料对檐沟起到防水密封的效果,耐候涂料能够减少环境对防水涂料的破坏,延长防水涂层的使用年限,与现有的檐沟防水方式相比,避免了额外增加保护层和自身载荷重的问题。(The invention discloses the waterproof constructions of pitched roof eaves gutter, including inclined pitched roof, the eaves gutter being fixed on the outside of pitched roof, two coatings are coated on the surface of eaves gutter, wherein bottom is water-repellent paint and directly contacts with the concrete surface of eaves gutter, and another layer is that weather-resistant coating is coated on water-repellent paint upper layer；Water-repellent paint is polyurethane water-proof paint, and its upper surface for coating eaves gutter completely；Weather-resistant coating is the weather-proof water-repellent paint of aliphatic polyurethane, and its upper surface for coating water-repellent paint completely.The beneficial effects of the invention are as follows; the present invention is by coating one layer of polyurethane water-proof paint on the surface layer of eaves gutter; to its sizing; then one layer of weather-resistant coating is coated on the surface of water-repellent paint; water-repellent paint plays the effect of waterproof sealing to eaves gutter, and weather-resistant coating can reduce destruction of the environment to water-repellent paint, extend the service life of waterproof coating; compared with existing eaves gutter waterproof type, the additional problem for increasing protective layer and own load weight is avoided.)

1. the waterproof construction of pitched roof eaves gutter, including inclined pitched roof, the eaves gutter being fixed on the outside of pitched roof, feature exist In, two coatings are coated on the surface of eaves gutter, wherein bottom is water-repellent paint and directly contacts with the concrete surface of eaves gutter, Another layer is that weather-resistant coating is coated on water-repellent paint upper layer.

2. title according to claim 1, which is characterized in that water-repellent paint is polyurethane water-proof paint, and it coats eaves completely The upper surface of ditch；Weather-resistant coating is the weather-proof water-repellent paint of aliphatic polyurethane, and its upper surface for coating water-repellent paint completely.

3. title according to claim 1, which is characterized in that coated on the outer surface of pitched roof and be only coated with one layer of waterproof painting Material.

4. title according to claim 1, which is characterized in that the coating thickness of water-repellent paint between 1.5-3mm, weather-resistant coating With a thickness of 0.08-0.12mm.

5. title according to claim 4, which is characterized in that the preferred 2mm of the coating thickness of water-repellent paint, the thickness of weather-resistant coating It is preferred that 0.1mm.

6. title according to claim 1, which is characterized in that eaves gutter has the gradient of 1%-5%, and preferred slope is 3%.

7. title according to claim 1, which is characterized in that the proportion of polyurethane water-proof paint is (with mass percentage Meter): isocyanates 5~8%；Polyether polyol 21~27%；Plasticizer 15~22%；Dispersing agent 0.03~0.1%；Filler 35 ~50%；Dehydrating agent 0.05~0.2%；Thixotropic agent 0.5~2%；Catalyst 0.03~0.2%；Defoaming agent 0.2~1%；Solvent 0~15%.

8. title according to claim 7, which is characterized in that polyether polyol is polyethers, dihydric alcohol, one in polyether-tribasic alcohol Kind or a variety of combinations, isocyanates are one of diphenyl, methane diisocyanate, toluene di-isocyanate(TDI) or both Combination, one of plasticizer DINP, DIDP, chlorinated paraffin, polyol ester or a variety of combinations.

9. the construction method of pitched roof eaves gutter waterproof construction according to claim 1, which is characterized in that

S1. surface cleaning to be onstructed: cleaning treatment is carried out to the upper surface of pitched roof and eaves gutter, it is avoided to influence to apply there are dust The coating effect of material；

S2. it coats water-repellent paint: first coating the polyurethane water-proof paint of one layer of 2mm thickness in the upper surface of pitched roof and eaves gutter, it is quiet To a period of time, the aliphatic that one layer of no less than 0.1mm thickness is then coated on the polyurethane water-proof paint of eaves gutter is weather-proof Water-repellent paint；

S3. the drying of water-repellent paint: one layer of Dustproof plastic is covered in the upper surface of pitched roof and eaves gutter, it is anti-to wait for a period of time etc. quietly Taking Dustproof plastic away after water paint is dry can be completed.

10. title according to claim 9, which is characterized in that in step S2, coat polyurethane water-proof paint after when waiting for quietly Between be specially 24-36h, in step S3, the time of waiting for quietly covered after one layer of Dustproof plastic is specially 12-24h.

Technical field

The present invention relates to the waterproof constructions and its construction method of house eaves gutter waterproof field, especially pitched roof eaves gutter.

Background technique

Eaves gutter is the collecting gutter on eaves side, by the unilateral collection rainwater of length and rainwater is made to overflow to outdoor along limes marginis.Eaves gutter It generallys use concrete or metal is made, since metal is easy corrosion, in addition there are solder joints to be easy leak for assembly, therefore Eaves gutter product is in the majority with concrete at present.And for concrete eaves gutter, in the long-term use process, perhaps can exist and split The possibility of leak is stitched, and if not carrying out water-proofing treatment to it at eaves gutter building initial stage, can be shone in outdoor optical, cold and hot, wind The comprehensive of rain destroys, and generates crack or other corrupted, so that there is crack or pit slot in its surface, Sometimes When It Rains, the position Rainwater can be stockpiled by setting, and crack or pit slot is caused persistently to increase, so that influencing the performance of catchmenting of eaves gutter from now on.

In existing project under construction, the form of construction work to eaves gutter is usually using one coating of coating or to be coated with one layer of waterproof The mode of coiled material, but there are the following problems for both modes: the mode for coating a coating is often required in its table A layer concrete protective layer is covered on face, load greatly increases, and increases extra-pay expenditure；And it is anti-for being coated with one layer The mode of water coiled material, although can choose waterproof roll that can be exposed, without oversite concrete protective layer, due to waterproof roll Material itself is heavier, for the eaves gutter of no any steelframe support, which will increase the burden of eaves gutter wall, bigger Problem is that waterproof roll influences waterproof effect due to overlapping there is a large amount of waterproof weak spot.In addition coiled material itself is thicker, Overlapping when overlap joint eliminates the drainage grade of eaves gutter itself, influences drainage effect.

Summary of the invention

The purpose of the present invention is to solve the above problems existing for existing construction technical schemes, devise pitched roof eaves gutter Waterproof construction and its construction method.

Realize above-mentioned purpose the technical scheme is that, the waterproof construction of pitched roof eaves gutter, including inclined pitched roof, The eaves gutter being fixed on the outside of pitched roof is coated with two coatings on the surface of eaves gutter, and wherein bottom is water-repellent paint and and eaves gutter Concrete surface directly contact, another layer be weather-resistant coating be coated on water-repellent paint upper layer.

Here a kind of available material of two coatings is provided, water-repellent paint is polyurethane water-proof paint, and it coats eaves completely The upper surface of ditch；Weather-resistant coating is the weather-proof water-repellent paint of aliphatic polyurethane, and its upper surface for coating water-repellent paint completely.

Alternatively, it is coated on the outer surface of pitched roof and is only coated with one layer of water-repellent paint.

As the preferred embodiment of water-repellent paint coating thickness, the coating thickness of water-repellent paint is weather-proof between 1.5-3mm The thickness of coating is between 0.08-0.12mm.

As the another embodiment of water-repellent paint coating thickness, the preferred 2mm of the coating thickness of water-repellent paint, weather-proof painting The preferred 0.1mm of the thickness of material.

As a kind of preferred embodiment of eaves gutter manufacture gradient, eaves gutter has the gradient of 1%-5%, and preferred slope is 3%.

A kind of proportion mode of above-mentioned polyurethane water-proof paint is provided below, the proportion of polyurethane water-proof paint is (with matter Measure percentage composition meter): isocyanates 5~8%；Polyether polyol 21~27%；Plasticizer 15~22%；Dispersing agent 0.03~ 0.1%；Filler 35~50%；Dehydrating agent 0.05~0.2%；Thixotropic agent 0.5~2%；Catalyst 0.03~0.2%；Defoaming agent 0.2~1%；Solvent 0~15%；Wherein, polyether polyol is one of polyethers, dihydric alcohol, polyether-tribasic alcohol or a variety of Combination, isocyanates are the combination of one of diphenyl, methane diisocyanate, toluene di-isocyanate(TDI) or both, plasticising Agent is one of DINP, DIDP, chlorinated paraffin, polyol ester or a variety of combinations.

A kind of construction method of pitched roof eaves gutter waterproof construction is provided below:

S1. surface cleaning to be onstructed: cleaning treatment is carried out to the upper surface of pitched roof and eaves gutter, avoiding it, there are dust shadows Ring the coating effect of coating；

S2. it coats water-repellent paint: first being applied in the polyurethane water-proof that the upper surface of pitched roof and eaves gutter coats one layer of 2mm thickness Material, waits for 24-36h quietly, and the aliphatic that one layer of no less than 0.1mm thickness is then coated on the polyurethane water-proof paint of eaves gutter is resistance to Wait water-repellent paint；

S3. the drying of water-repellent paint: one layer of Dustproof plastic is covered in the upper surface of pitched roof and eaves gutter, after waiting for 12-24h quietly Equal water-repellent paints are dry, and Dustproof plastic, which is taken away, can be completed.

The beneficial effect is that the present invention is in such a way that waterproof coating and weathering resistance coatings is respectively coated in the surface in eaves gutter It realizes and eaves gutter waterproof is achieved the purpose that in most simple most light mode.One layer of polyurethane water-proof is coated on the surface layer of eaves gutter to apply Then material coats one layer of weather-resistant coating on the surface of water-repellent paint, water-repellent paint plays waterproof sealing to eaves gutter to its sizing Effect, weather-resistant coating can reduce destruction of the environment to water-repellent paint, extend the service life of waterproof coating, with existing eaves gutter Waterproof type is compared, and the additional problem for increasing protective layer and own load weight is avoided.

Detailed description of the invention

Fig. 1 is the overall structure diagram after eaves gutter coating waterproof coating of the present invention；

Fig. 2 is schematic elevation view of the invention；

Fig. 3 is the partial enlarged view of Fig. 2；

In figure, 1, pitched roof；2, eaves gutter；3, water guide hollow pipe；4, MPU white polyurethane water-repellent paint；5, EPU aliphatic The weather-proof water-repellent paint of polyurethane.

Specific embodiment

Be illustrated first to mentality of designing of the invention: most of modern architecture is concrete construction, in architecture construction During, main body has framework of steel reinforcement to support, and can build in the position of its eaves after building body builds completion Eaves gutter, for assembling rainwater when rainwater day, and by the pipeline of rainwater diversion to two sides, but due to eaves gutter ontology be by Concrete for making forms, if any measure is not added, surface can crack under long-term environmental attack or pit-hole, In These crackles or pit-hole meeting ponding under rainwater weather, and then further expanded crack, if things go on like this can make eaves gutter that can not rise To the effect for the water conservancy diversion that catchments, on the contrary, eaves gutter itself can seep water, and harm be generated to the wall of building, in order to avoid such case Generation, eaves gutter building on can eaves gutter surface addition waterproof material water-proofing treatment is carried out to it.Conventional processing method has Following two, one of method are to smear one layer of water-repellent paint on the surface of eaves gutter, then apply on the surface of water-repellent paint One layer concrete protective layer of work, the waterproof layer for protecting water-repellent paint to be formed is by environmental disruption；And another method is, in eaves The surface of ditch is directly laid with one layer of waterproof roll, it is well known that, the self weight of waterproof roll is larger, and due to there is overlap joint for not appointing The use that waterproof roll increases for the eaves gutter of what reinforced bar support can reduce the building life of eaves gutter, and bigger problem is waterproof roll Material influences waterproof effect due to overlapping there is a large amount of waterproof weak spot.In addition coiled material itself is thicker, overlapping when overlap joint disappears In addition to the drainage grade of eaves gutter itself, drainage effect is influenced.In general, both are existing

Form of construction work there is inappropriate place, for this purpose, the present invention provide a kind of new eaves gutter embodiment come it is excellent Change existing waterproof construction mode.

The present invention is specifically described with reference to the accompanying drawing, as shown in Figure 1, to make those skilled in the art to this technology Scheme is fully understood, is now illustrated to the structure of diagram, and 1 eaves gutter 2 of pitched roof of diagram includes inclined pitched roof 1, fixed Eaves gutter 2 in the outside of pitched roof 1, construction waterproof layer on sloping roof structure, the low block insulation layer of construction water absorption rate on waterproof layer, In order to avoid heat insulation effect reduces after insulating layer immersion, water guide hollow pipe is provided between eaves gutter 2 in 1 insulating layer of pitched roof 3, for liquid water or steam that may be present in 1 insulating layer of pitched roof to be guided in eaves gutter 2, then through 2 row of flowing to of eaves gutter In waterpipe.Pitched roof 1 is additionally provided with more reinforcing bars in figure, for fixing the thing placed on pitched roof 1, such as tile or its Building structure on his roof.

Based on above-mentioned 1 structure of pitched roof, in conjunction with shown in attached drawing 1-3, below to the structure of technical solution of the present invention It is illustrated, two coatings is coated on the surface of eaves gutter 2, wherein bottom is water-repellent paint, the water-repellent paint and eaves gutter 2 Concrete surface directly contacts, and upper layer is weather-resistant coating.Specifically, above-mentioned coating can use both following materials, Wherein water-repellent paint can use MPU white polyurethane water-repellent paint 4, and during constructing coating, which needs The upper surface of cladding eaves gutter 2 completely, to reach the good waterproof effect of eaves gutter 2；And for weather-resistant coating, EPU rouge can be used The weather-proof water-repellent paint 5 of fat adoption urethane, and it is made to be coated on the upper surface of white polyurethane water-repellent paint completely, both modes Coating can play the purpose of 2 mode of eaves gutter, unlike, the waterproof performance of MPU white polyurethane water-repellent paint 4 is more excellent, But weatherability is poor, and the weatherability of the weather-proof water-repellent paint 5 of EPU aliphatic polyurethane is more excellent, waterproofness is poor, so by this Two kinds of water-repellent paints, which are combined together, has good weatherability while capable of guaranteeing 2 waterproof of eaves gutter, it should be noted that MPU white polyurethane water-repellent paint 4 and the weather-proof water-repellent paint 5 of EPU aliphatic polyurethane can be in the triumphant human relations building materials shares in Jiangsu Co., Ltd's buying obtains.

The above is the waterproof coating method to house eaves gutter 2, and for the waterproof type of pitched roof 1, due on pitched roof 1 Some tiles or other building structure can would generally be set, these building mechanisms can inherently play good weather-proof effect Fruit reduces environment to the erosion effect of water-repellent paint, so, for pitched roof 1, outer surface only needs to cover coating one Layer MPU white polyurethane water-repellent paint 4.

In practical waterproof construction operation, for the eaves gutter 2 of different area or waterproof requirement, the coating thickness of water-repellent paint Will be different, judge by long-term practice of construction operating experience, the coating thickness of water-repellent paint can between 1.5-3mm, High eaves gutter 2 its thickness of waterproof requirement can suitably increase, and the corresponding thickness of weather-resistant coating can between 0.08-0.12mm, Poor for 2 place environment of eaves gutter, the coating thickness of weather-resistant coating can suitably increase.Generally, for not any Construction experience or can not judge Specific construction mode, provide a kind of general construction preferred embodiment here, i.e. waterproof applies The coating thickness of material uses 2mm, and the coating thickness of weather-resistant coating uses 0.1mm.

It is well-known, in order to make eaves gutter 2 that there is good guide functions, the surface meeting of the eaves gutter 2 when constructing production of eaves gutter 2 Certain gradient is specially generated, is conducive to rainwater in this way and is flowed into drainage pipe, an accepted argument is carried out to the gradient of eaves gutter 2 here Bright, eaves gutter 2 can have the gradient of 1%-5%, and the preferred gradient is 3%.

A kind of concrete mode is provided to the formulated component of polyurethane water-proof paint below, the proportion of polyurethane water-proof paint is (in terms of mass percentage): isocyanates 5~8%；Polyether polyol 21~27%；Plasticizer 15~22%；Dispersing agent 0.03~0.1%；Filler 35~50%；Dehydrating agent 0.05~0.2%；Thixotropic agent 0.5~2%；Catalyst 0.03~0.2%； Defoaming agent 0.2~1%；Solvent 0~15%；Wherein, polyether polyol be one of polyethers, dihydric alcohol, polyether-tribasic alcohol or A variety of combinations, isocyanates are the group of one of diphenyl, methane diisocyanate, toluene di-isocyanate(TDI) or both It closes, one of plasticizer DINP, DIDP, chlorinated paraffin, polyol ester or a variety of combinations.

What is described above is all the frame mode of eaves gutter 2, and a kind of correspondence 1 eaves gutter of pitched roof, 2 waterproof knot above is provided below The concrete construction method of structure:

S1. surface cleaning to be onstructed: cleaning treatment is carried out to the upper surface of pitched roof 1 and eaves gutter 2, avoiding it, there are dusts Influence the coating effect of coating；

S2. it coats water-repellent paint: first coating the poly- ammonia of MPU white of one layer of 2mm thickness in the upper surface of pitched roof 1 and eaves gutter 2 Ester water-repellent paint 4, waiting for 24-36h etc. quietly, it is fully cured, and one layer is then coated on the polyurethane water-proof paint of eaves gutter 2 The weather-proof water-repellent paint 5 of the EPU aliphatic polyurethane of no less than 0.1mm thickness；

S3. the drying of water-repellent paint: one layer of Dustproof plastic can be covered in the upper surface of pitched roof 1 and eaves gutter 2, waited for quietly Equal water-repellent paints are dry after 12-24h, and Dustproof plastic is taken away.Working principle:

The operation principle of the present invention is that 2 ontology of eaves gutter is formed by concrete for making, if any measure is not added, Surface can crack under long-term environmental attack or pit-hole, if things go on like this can make eaves gutter 2 that can not play the water conservancy diversion that catchments Effect.And conventional processing method is mainly, and smears one layer of water-repellent paint on the surface of eaves gutter 2, then in the table of water-repellent paint It constructs on face a layer concrete protective layer；And another method be directly be laid with one layer of waterproof roll on the surface of eaves gutter 2, and The self weight of waterproof roll is larger, and eaves gutter 2 does not have reinforced bar support, can reduce the building life of eaves gutter 2.Bigger problem is waterproof Coiled material influences waterproof effect due to overlapping there is a large amount of waterproof weak spot.Overlapping in addition coiled material itself is thicker, when overlap joint The drainage grade for eliminating eaves gutter itself, influences drainage effect.The present invention by 2 surface applied in two coats water-repellent paint of eaves gutter come Realize 2 waterproof of eaves gutter, method particularly includes: cleaning treatment is carried out to the upper surface of pitched roof 1 and eaves gutter 2 first, avoid its there are The coating effect of dust influence coating；Then the poly- ammonia of MPU white of one layer of 2mm thickness is coated in the upper surface of pitched roof 1 and eaves gutter 2 Ester water-repellent paint 4, waiting for 24-36h etc. quietly, it is fully cured, then on the MPU white polyurethane water-repellent paint 4 of eaves gutter 2 again The weather-proof water-repellent paint 5 of EPU aliphatic polyurethane of one layer of coating no less than 0.1mm thickness；In order to avoid in the decline of its air drying process Dust can cover one layer of Dustproof plastic in the upper surface of pitched roof 1 and eaves gutter 2, wait water-repellent paints dry after waiting for 12-24h quietly, Dustproof plastic is taken away to the waterproof construction process for completing eaves gutter 2.

Above-mentioned technical proposal only embodies the optimal technical scheme of technical solution of the present invention, those skilled in the art The principle of the present invention is embodied to some variations that some of them part may be made, belongs to the scope of protection of the present invention it It is interior.