Background technology
At present, China is in roofworks practice, and the hard nut to crack on long-term puzzlement building circle is roof leakage and heat-insulating property this two problems that decay.And these two problems are because heat insulating material globality difference causes water space or steam detention space bigger, look for sloping material moisture content part too high, roofing to leak simultaneously and winter the temperature difference cause in dewfall etc. all will make steam increase waterproofing course under, even the waterproofing course maintenance is good again, the waterproofing materials quality is high again, also can't resist " bulge " and the destructions such as frost heave in winter as summer, cause maintenance every year, the vicious circle phenomenon of every year leaking.When insulation layer was in the water saturation state, roofing not only can not be incubated in the winter time, will look for slope and heat insulating material to be frozen in tightly on the floor on the contrary, formed very big frost-heave force, the destruction of causing agent structures such as cracks on floor slab, wall crazing.Therefore, how to solve the key issue that interior dewfall phenomenon of roofing heat-insulating layer and moistureproof problem have become the roof heat insulation technology.
On the other hand, in roofworks, the roof leakage problem is even more serious, and causes the roof heat insulation performance failure thus.The generation of this problem is except that the quality problems of roof waterproof layer itself, and most important reason is that upper and lower cement mortar overcoat of waterproofing course and leveling layer are very easy to cracking, causes waterproofing course to be torn.Simultaneously, sloping layer and insulation layer moisture content and injection water retaining in reservoir are excessive, cause waterproofing course winter " frost heave " and summer " bulge ", and it is destroyed also to bring out waterproofing course.
In a word, at present China's waterproofing course and insulation layer in roofworks is two separate functional configurations, these two functional layers need cement mortar screeding to falls layer, leveling layer and overcoat that it is bundled together again, cause mutual harmful effect and destruction between each layer, form vicious circle, this is the hard nut to crack that perplexs the building circle for a long time.
How to seek and invent a kind of material and make it integrate waterproof and heat insulation function, can satisfy simultaneously requirements such as fire prevention in the roofworks, durable and compressive strength again, become the target that the building scientific research personnel pursues for many years.Had patent documentation to propose similar techniques such as foam-in-place polyurethane or hard polyurethane frothing plate in recent years, but all there are serious problems in the fire prevention of this technology, durable and compressive strength, particularly because fireproof performance is relatively poor, are banned use of by national correlation department.
Summary of the invention
Order of the present invention is the deficiency that exists at prior art, and a kind of thermal-insulating waterproof integrated building roofing and job practices thereof are provided.So-called " integrated " one is meant that insulation and water-proof function are integrated; It two is meant by the cast in situs job practices and forms no a seam integral body roofing, makes building roof have better insulation and waterproof effect.
The technical scheme that realizes the object of the invention is:
Design a kind of thermal-insulating waterproof integrated building roofing, form by sandwich waterproofing course in heat insulation tile layer and the foam concrete, it is characterized in that the heat insulation tile layer bottom at building roof, form by the heat insulation tile oblique cut grafting, lap-joint is provided with the sealing groove face, and waterproofing course is to wipe off behind the on-site casting polyphenyl foam concrete on the heat insulation tile layer, sprays blade coating water-repellent paint behind the emulsion polymerization then, re-lay waterproof roll, last cast-in-place foamed concrete and constituting;
Described insulation tile is by expanded polystyrene (EPS) or polyurethane or polyvinyl chloride or rubber or engineering plastics die forming, density 30~40Kg/m
3Thickness is 1~15mm;
Described emulsion polymerization is to be made by polyvinyl acetate or polyphenyl third ethene or poly-third ethene or rubber polyvinyl acetate, pH value 6~8, and viscosity 200~1000mPas, infiltration thickness is 1~20mm;
Described water-repellent paint is to make thickness 1~5mm by modified polyvinyl acetate or polyurethane or modified bitumen or poly-second third or rubber;
Described waterproof roll has nonwoven by the high polymer waterproof material surface recombination and makes, thickness 1~8mm;
Its material of described foam concrete consists of polystyrene foaming granule 10~18kg/m
3, cement 180~600kg/m
3, blowing agent 0.3-0.9 kg/m
3, water 90-150 kg/m
3, density 200~800kg/m
3, thickness 10~150mm;
The job practices of thermal-insulating waterproof integrated building roofing, carry out as follows: at first lay heat insulation tile, and make the sealing groove face, pumping cast-in-place foamed concrete and strickling on the heat insulation tile layer simultaneously, spray emulsion polymerization during half-dried hard state, intensity is carried out blade coating water-repellent paint and sticking shop polymer membranes after can going up the people, the cast-in-place and strickling with the foam concrete pumping once more at last;
Described sealing groove face is to withhold overlap joint mutually by the camber line shape face of insulation tile protuberance to constitute;
The present invention is applicable to flat pattern roofing and sloping type roofing.
Compared with prior art, characteristics of the present invention and beneficial effect thereof are:
Heat insulation tile layer among 1 the present invention has two functions, one " is maked somebody a mere figurehead " water-proof insulating roof, and form an air layer between the roof structural level, this air layer both can prevent the sedimentation and deformation of roof deck, cause destroying waterproofing course and insulation layer structure, can be used as the humidity discharging layer again the moisture that interior of building penetrates is discharged by the humidity discharging pore, avoided the bulge and the interior dewfall phenomenon of waterproof thermal-insulated each layer, improved the thermal resistance of roofing simultaneously greatly; Its two, formed built on stilts " upside-down waterproof layer " roofing function of suitable China southern climates, promptly the heat insulation tile layer is equivalent to the upside-down waterproof layer layer, and southern heat insulation and waterproof is solved preferably;
The organic and inorganic pair of foaming body slurry that 2 foam concrete layers of the present invention are made up of granules of polystyrene and foam concrete built typing and formed on heat insulation tile.The thickness of this layer is 20mm~200mm, apparent density 200~500kg/m
3, coefficient of thermal conductivity 0.05-0.1 W/mk, compressive strength 0.3-1.0 MPa.This layer is based on heat insulation function, water-proof function is auxilliary, its water-proof function is except self having certain hydrophobic, drain function, be mainly reflected in build on the thing heat insulation tile typing after, have anti-destruction, resistance to compression, resistance to deformation intensity, can prevent that heat insulation tile is damaged and guarantees that heat insulation tile overlaps closely all the time in long-term use.Simultaneously, making does not have the water space in the water-proof heat preserving architecture, not bulge, do not ftracture, in dewfall, form complete " body " waterproof construction;
Sealing groove face among 3 the present invention is equivalent to make shipwreck to get over two conical sleeves of gradient together, and Long Qi heat insulation tile lower space can be communicated with the humidity discharging air layer simultaneously;
4 the present invention bond macromolecule waterproofing course sandwich in foam concrete, make it exempt from destruction in the foam concrete of " tempering toughness with gentleness ", have improved the waterproof effect and the waterproof time limit greatly;
5 sealing permeable formations of the present invention are to be sprayed thereon after on-site casting polyphenyl foam concrete layer is built by emulsion polymerization, forming length of penetration is the compound structure layer of 1~20mm, and this layer major function is to improve water proofing property, hydrophobicity and the surperficial crack resistance of on-site casting polyphenyl foam concrete layer.The effect that next plays a transition zone, two layers rerum natura is close about making, and forms transition effect, and one integrated mass is not stratified; This layer also can improve heat insulation effect simultaneously;
6 water-repellent paint layers are to be made of various high molecular water-proof paints or high molecular polymer cement, and it is that blade coating is sealing on the permeable formation, and its major function of thickness 1~5mm is that waterproof roll is sticked on the sealing permeable formation firmly;
7 the present invention with water-proof function and heat insulation function logging material characteristic, changed in the waterproof thermal-insulated technology of traditional roofing, the construction technology that waterproofing materials must rely on cement mortar layer to combine with heat insulating material, the contradiction of also avoided mutual function reduction between waterproofing materials and the heat insulating material simultaneously, destroying mutually;
8 the present invention adopt the mechanization pumping construction, save a large amount of artificial, easy construction, speed of application is fast, casual labourer can be two days the phase, shortens more than 10 times than traditional roofing construction cycle;
9 water-proof insulating roof fireproof performances of the present invention are good, reached national A2 level fire proofing material standard, and while good endurance, waterproof thermal-insulated year limit for length are with the same life-span of constructure body structure;
10 the present invention are applied widely, not only are suitable for the northern China severe cold area, are suitable for extremely hot area, China south too, and engineering cost is low simultaneously, construction technology is simple to operate, material source is extensive, is fit to extensively promote.
The specific embodiment
Below in conjunction with embodiment the present invention is elaborated, but protection scope of the present invention is not limited only to following embodiment:
Embodiment 1: the job practices of flat pattern roofing.At first the order overlap joint is put heat insulation tile on flat pattern roof structural plane, and polybenzene foamed concrete is built in pumping on its watt; Promptly overlap joint is put a heat insulation tile and is just built one at any time, looks for the slope to require to wipe off according to design thickness peace aspect waterproof simultaneously.That is to say that the waterproof that on-site casting polyphenyl foam concrete layer has the flat bed face concurrently looks for sloping function, so operation is finished until the entire job face.When on-site casting polyphenyl foam concrete layer is in half-dried hard state, begin to spray emulsion polymerization, intensity is carried out the blade coating water-repellent paint after can going up the people, and bonding polymer nonwoven cloth waterproof coiled material, after finish the sticking shop of macromolecule nonwoven cloth waterproof coiled material, the light weight concrete construction overcoat is built in pumping immediately, thickness 20mm, and look for the slope require to wipe off according to flat roof waterproof.So this layer also can have concurrently and look for brokenly function, so operation is after finishing the entire job face, and then engineering construction finishes.
Embodiment 2: the job practices of sloping type roofing.At first the order overlap joint is put heat insulation tile on sloping type roof structural plane, use simultaneously ail gun with the heat insulation tile stickfast on structural plane, the afterbody of nailing must exceed heat insulation tile 10mm, the afterbody of nailing is bonded in on-site casting polyphenyl foam concrete layer, prevent that waterproof thermal-insulated aspect from sliding on structural plane.Putting, in the overlap joint, stickfast heat insulation tile, just can pumping build polybenzene foamed concrete, and wipe off, until finishing the entire job face according to design thickness.When on-site casting polyphenyl foam concrete layer is in half-dried hard state constantly, begin to spray emulsion polymerization, intensity is carried out blade coating water-repellent paint and bonding polymer coiled material after can going up the people.If the macromolecule coiled material selects for use anti-solar radiation to wear out, exempt the operation of light weight concrete construction overcoat, so far completion; As select the macromolecule nonwoven cloth waterproof coiled material for use, and need pumping cast-in-place light concrete shield, thickness 50mm, and wipe off until finishing the entire job face.