CN104251042A - Roof waterproof construction method - Google Patents

Abstract

The invention provides a roof waterproof construction method, and belongs to the field of waterproof technology of buildings. The roof waterproof construction method comprises the following steps: industrial gasoline is added in chloroprene rubber asphalt adhesive for diluting, the two substances are evenly mixed, and the mixture is brushed on the cleaned surface of a substrate; then, a coiled material is laid after the brushed mixture is kept at normal temperature for 4 hours; during pavement, the joint place of the substrate and the coiled material is heated by a flame spray gun when the coiled material is uncoiled; the distance from the flame spray gun to the heated surface is 300 mm; when the surface of the coiled material is just molten by reciprocating heating, the coiled material is forwards rolled, laid and bonded; the coiled material is upwards laid from cornices and parallel to the ridge; for the bidirectional flowing slope, the coiled material is in lap joint in the flowing direction; the lap joint widths of the long edges and the ends of the coiled material are both 80 mm; and joints of the ends are staggered by 50 mm; the lap joint place of the coiled material is heated with the spray gun and the bonding is reinforced by the heating; and the closing head of the tail end is tightly filled with sealant.

Description

The construction method of roof waterproof

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Technical field

The invention belongs to building waterproof technical field, particularly relate to a kind of construction method of roof waterproof.

Background technology

Building infiltration problem is the comparatively general common quality defect of building, the problem that the reflection of Ye Shi resident family is the strongest.Many resident families find the infiltration of roof leakage, wall, rendering layer obscission when use, day by day, roof, inner wall surface can occur that because of seepage large area is peeled off, and cause mouldy spoiled because long-time seepage is moist, directly affect the healthy of resident family, let alone carry out interior decoration.The work such as office, machine room, workshop produce institute as long-term seepage will badly damaged office facility, precision instrument, machine tool etc. also can be malfunctioning because mildewing spot, even cause electrical short-circuit.In the face of Seepage, people will spend a large amount of man power and materials to reprocess every the several years.Seepage not only upsets the normal life of people, work, the production order, and directly has influence on the application life of whole solitary building.The quality of waterproof effect as can be seen here, most important to the quality of building, waterproofing occupies very consequence in construction work thus.In whole building engineering construction, strictly, in earnest must carry out construction waterproofing engineering.

Summary of the invention

The invention provides a kind of construction method of roof waterproof, the technical solution used in the present invention comprises the steps:

(1) bituminous neoprene bonding adhesive is added industrial gasoline dilution, stir, be painted in the substrate surface cleaned out, normal temperature, after 4h, starts paving coiled material;

(2) during paving with unreeling with flame gun heating basic unit and the junction of coiled material, coiled material, apart from heater surface 300mm, through coming and going heating, when the face taking advantage of coiled material just melts, is rolled forward paving, stickup by spray gun;

(3) coiled material should parallel ridge from the up paving of eaves day, two-way drain slope coiled material lapping is along current direction, and the lap width of long limit and termination, is 80mm, and termination connects stubble will stagger 50mm;

(4) coiled material lapping place spray gun is heated, make the two bonding while hot firmly; It is tight that end receives head sealing compound pointing.

The construction method of roof waterproof of the present invention, waterproofing materials is selected in the requirement of the waterproofing materials kind that roof waterpoof material strictly indicates by design document, specification, performance.Strictly can use after retrial is qualified before using.Forbid to use the waterproofing materials detecting department's inspection without country, the waterproofing materials selected is except work certificate, and the durability of its material must meet the service life of designing requirement.Well-designed simultaneously enforcement manages with delicacy, well construction.Waterproof construction operating personnel, must have the post certificate of waterproof special operation work post, and person without license mustn't on dutyly operate, to ensure construction quality.

Detailed description of the invention

Below in conjunction with detailed description of the invention the present invention made and further illustrating.

1. material and requirement

Waterproof roll: EPDM rubber waterproof rolling material.The outgoing quality certification must be had, have examining report, properties of product and description that corresponding qualification grade detection department provides; Should carry out visual inspection after marching into the arena, by regulation sampling retrial after qualified, and implementation has witness sampling and censorship.

Primer: polyurethane primer (being equivalent to adhesive bitument primer) point first, second two component, first is yellowish-brown colloid, and second is black colloid.

CX 1 glue: be the muddy colloid of yellow, for basic unit and coiled material bonding.

Polyurethane coating film material: for the treatment of seam, supplement, encapsulation process, point first, component B.

Butyl cementing agent: for coiled material seam, point A, B two component, A is yellow turbid colloid, and B is black colloid.

Poly-ammonia is indulged in sealant: receive head position, point first, component B for sealing coiled material.

Dimethylbenzene or ethyl acetate: for dilution or cleaning means.

Polymer modified bituminous waterproof sheet material: be synthesising macromolecule copolymer modified asphalt felt.

Bituminous neoprene bonding adhesive: adding pitch and solvent etc. by neoprene formulated, is black liquor.

Rubber asphalt sealant: i.e. sealing compound, for thin portion build-in side seam.

Protective layer material: according to designing requirement.

No. 70 gasoline, dimethylbenzene, for cleaning contaminated position.

2. construction equipment

Electric mixer, high pressure air blowing machine, automatic hot-air bonding machine, plasterer's trowel, rolling brush, benzine blow lamp, invar tape, scissors, whisk broom, little line, chalk, rouge and powder.

3. technological process (Hot-melt construction)

Cleaning basic unit → brushing base treatment agent → paving coiled material extra play → paving coiled material → hot melt edge sealing → water-storing test → topping

4. operating procedure

Cleaning basic unit

Before construction, the substrate surface dust of acceptance(check), foreign material are cleaned out.

Brushing base treatment agent

High-polymer modified pitch coiled material is constructed, and supports the use by product description, and base treatment agent bituminous neoprene bonding adhesive is added industrial gasoline dilution, stir, with long, round brush is evenly painted in substrate surface, normal temperature, after 4h, starts paving coiled material.

Extra play is constructed

General hot melt uses modified bituminous pitch coiled material to before construction of waterproof layer, and at parapet, Shui Luokou, Guan Gen, cornice, negative and positive angle etc., extra play is first done in thin portion, and additional scope should meet designing requirement.

Paving coiled material

The number of plies, the thickness of coiled material should meet designing requirement.During multilayer paving, seam should stagger.Modified asphalt waterproof coiled material is cut into corresponding size, spools for subsequent use with the reel heart; With unreeling with flame gun heating basic unit and the junction of coiled material during paving, coiled material, apart from heater surface about 300mm, through coming and going homogeneous heating, when the face taking advantage of coiled material just melts, is rolled forward paving, stickup by spray gun.

Coiled material should parallel ridge from the up paving of eaves day, two-way drain slope coiled material lapping acts in accordance with current direction, the lap width of long limit and termination, and full bonding is 80mm, and termination connects stubble will stagger 50mm.

Coiled material from the descending of drain slope, should eject reference line paving by coiled material specification, and makes the long limit of coiled material vertical with flowing water slope aspect.Notice that coiled material preparation should reduce the joint at negative and positive angle place.

The coiled material that paving plane is connected with facade, should carry out from bottom to top, makes coiled material be close to negative and positive angle, when sprawling to coiled material can not La get Tai tight, and the phenomenon such as gauffer, hollowing must not be had.

Hot melt edge sealing

Coiled material lapping place spray gun is heated, makes the two bonding while hot firmly, extrude pitch for degree with edge; It is tight that end receives head sealing compound pointing.

Waterproofing course water-storing test

After coil waterproof layer completion, confirm that way meets designing requirement, blocked by all inlets for stom water, then pour water, the water surface should exceed roofing peak 20mm, conscientiously observes after 24h, especially pipe root, air channel root, and no seepage and no leakage is qualified, otherwise should do over again.

Fish tail and waterproof layer is constructed

Accessible roof does various rigid waterproof layer roof protecting layer by designing requirement.Accessible roof does not do topping two kinds of forms:

Waterproofing course external coating bituminous neoprene bonding adhesive, spreads flag immediately, requires that spreading is even, and bonding firmly, forms flag topping.

Waterproofing course external coating silvery reflection coating.

5. finished product protection

The coil waterproof layer spread, should take to wipe to execute to protect, and forbids to carry out construction operation and transport on waterproofing course, and should do the topping of waterproofing course in time.

Through the pipeline at roofing, metope waterproofing course place, in construction with after completion, displacement must not be damaged.

Before place's construction of waterproof layer such as deformation joint, the water setting sun, temporary plugging should be carried out, after waterproofing course completion, should remove, ensure in pipe, seam unobstructed, meet using function.

Metope, cornice and other finished products must not be polluted during roofing construction.

The quality problems that should note

Roofing out-of-flatness: leveling layer irregularity, causes ponding, answers hanging wire to put slope during construction, answers bracing wire inspection in construction of leveling blanket.Accomplish that the gradient meets the requirements, smooth without ponding.

Hollowing: during paving coiled material, basic unit is moist, and paving is half-hearted, and edge easily occurs hollowing; Basic unit's moisture content should be grasped during paving coiled material, undesirable can not paving coiled material, should put down during paving simultaneously, real, flanging is tight, and bonding is firmly.

Seepage: mostly occur in thin position.During paving extra play, coiled material cut join, paste operation should make extra play be close to put in place, obturage, compacting, must not have the phenomenons such as alice.

Parapet coiled material seals non-compacting and fixes, and seals without ointment.

Guan Genwei does circular arc, above without umbrella cover, is wound around receives head without Bituminous hemp fiber.

Coiled material enters the lower mouth of a river less than 10mm.

Claims (2)

1. a construction method for roof waterproof, is characterized in that comprising the following steps:

(1) bituminous neoprene bonding adhesive is added industrial gasoline dilution, stir, be painted in the substrate surface cleaned out, normal temperature, after 4h, starts paving coiled material;

(2) during paving with unreeling with flame gun heating basic unit and the junction of coiled material, coiled material, apart from heater surface 300mm, through coming and going heating, when the face taking advantage of coiled material just melts, is rolled forward paving, stickup by spray gun;

(3) coiled material should parallel ridge from the up paving of eaves day, two-way drain slope coiled material lapping is along current direction, and the lap width of long limit and termination, is 80mm, and termination connects stubble will stagger 50mm;

(4) coiled material lapping place spray gun is heated, make the two bonding while hot firmly; It is tight that end receives head sealing compound pointing.

2. the construction method of roof waterproof according to claim 1, is characterized in that: in step (4), and spray gun heating extrudes pitch for degree with coil edge.