CN101994399B - Method for repairing leaked coiled-material water-proof roof - Google Patents
Method for repairing leaked coiled-material water-proof roof Download PDFInfo
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Abstract
The invention relates to a method for repairing a leaked coiled-material water-proof roof. The method comprises the steps of basic layer processing, detail repairing, large-area repairing, and the like. The step of detail repairing comprises: repairing cracked gutters and eaves gutter coiled-materials, repairing flashing parts and repairing deformed joints. The step of large-area repairing comprises: paving water-proof coiled materials, repairing cracks on a coiled-material water-proof layer, repairing the raised edges of a joint opening, repairing a raised part, and the like. The whole repairing scheme of the invention has the advantages of scientific design, reasonable system, overall prospection, rigorous analysis, practicability and good construction effect, and ensures that leaked houses can be effectively repaired. In the method, the materials, construction manner, construction environment, and the like, are all comprehensively considered. The construction cost performance is high and the use range is wide. The construction method is safe and environment-friendly, can meet the demands of building use and safety, can ensure that the manpower, material resources and financial resources are saved, and is suitable for various repairing for the leaked coiled-material water-proof roof. The application and practice show that the construction condition of the method is in good condition.
Description
Technical field
The present invention relates to a kind of roof leakage repairerment method, particularly relate to the job practices that a kind of waterproof coiled material roof leakage is repaired.
Background technology
Current, there is percolating water phenomenon in various degree in the waterproof coiled material roofing of China's building construction, causes the reason of seepage a lot, and analysis-by-synthesis mainly contains the factor of four aspects such as design, construction, material and use and management.Because the object that seepage is repaired mainly is existing building or structure, repairerment method is in the past often overhauled thoroughly, method for repairing and mending is improper, or factor such as materials used is unreasonable, causes repair efficiency bad, causes roofing the secondary seepage to occur.Than large-engineering in a single day seepage takes place in the existing life, repair generally comparatively complicacy, repair expenses is also higher, if can not rationally arrange, will certainly result in greater loss.
Summary of the invention
According to investigations; Domestic certain well-known developer's early stage is owing to be negligent of the management of construction quality; The building of building up just used 3 years, and the roofing of building is the occurrence of large-area seepage, had to carry out waterproof repairment; Only be used for the maintenance cost that building leaks and reach 3 hundred million more than, maintenance cost accounts for 10% of building cost in early stage.Strengthen management and safeguard it is to reduce the roof leakage rate and prolong the waterproofing course important measures of service life; Regularly carry out the roofing maintenance, take waterproofing course to be cleaned inspection comprehensively, find to have the part of damage in time to take reclamation activities in annual rainy season and winter; To reducing the roof leakage rate; Minimizing is reprocessed, and reduces expenses, and has crucial meaning the service life of prolongation waterproofing course.
Application number is the construction that the patent application of CN200810194899.X discloses a kind of building roof waterproof comprehensive regulation; This method may further comprise the steps: will leak, ooze the position and clean out; It is closely knit that the position will be leaked, oozed to employing chemical grouting method, after loss circulation material solidifies fully, adopts the slit is closely knit, that deck is the recessed position of chemical grouting method to whitewash smooth with the structure mortar at the deck another side; After treating the deck drying, brushing polyurethane coating film or hot process are completely spread the SBS coiled material.The method that this invention adopts structure self waterproof and outer waterproof to combine is drawn materials conveniently, reduces the probability of doing over again and keeping in repair, and can reduce unnecessary loss.This method only relates to the simple process of leakage being oozed the position, does not relate to the comprehensive repairerment of waterproof coiled material roof leakage is handled.
Summary of the invention
The problem that the present invention will solve is: provide a kind of roofing of constructing scientific and reasonable, that comprehensive waterproof is effective to repair job practices.
Technical scheme of the present invention:
The job practices that a kind of waterproof coiled material roof leakage is repaired, this method comprise that base treatment, thin portion repair and big face is repaired, and maintenance, the maintenance at flashing place and the maintenance of deformation joint that comprises gutter and eaves gutter coiled material cracking repaired by thin portion;
The maintenance of said gutter and eaves gutter coiled material cracking is carried out as follows: when less or breakthrough distributes scattered the maintenance when breakthrough; Should remove the waterproofing materials that the cracking breakage lost efficacy; Again carry out waterproofing work, should be connected with former waterproofing course after the repairerment form whole, and must not ponding; When overhaul at the serious position of seepage, should with play drum, damaged former waterproofing course roots out, clean out; After repairing basic unit, lay coiled material or coating water-repellent paint extra play earlier, lay waterproofing course then again, coiled material is received the head position and should be fixed, seal;
The maintenance at said flashing place is undertaken by following method: when the junction coiled material that exceeds roof structure and roof-base of parapet, wall ftractures, earlier the crack is cleaned out, laid coiled material again, make new and old waterproofing course form integral body; On body of wall, dig out simultaneously groove, coiled material is received head be pressed in the groove in the body of wall, and fixing seal, groove is not less than 250mm apart from the height of roofing leveling layer, and the top body of wall of parapet, wall should be done waterproofing work;
Used coiled material is asphalt free waterproof roll, and this waterproof roll is in weight portion, and it consists of rosin 65-70 part, vegetable oil 50-55 part, SBS 40-45 part, French chalk 10-15 part.
Said base treatment is undertaken by following method: remove substrate surface earlier, the surface should be solid, smooth, clean, dry, and drainage grade should adhere to specification; Circular shape is made in the junction of basic unit and outstanding roof structure and basic unit corner; Around falling mouthful, makes in the water of internal drainage lower slightly pit; The gradient of leveling layer is 1 ~ 2%.
The maintenance of said deformation joint is carried out as follows: when roofing horizontal distortion seam seepage; Need to remove original coil waterproof layer, cementitious materials and the encapsulant in the deformation joint; Make basic unit keep clean, dry, the brushing base treatment agent is filled stuffing box packing in the seam then; And tight with the coiled material capping, the top should add button concrete cover or metal cover board; When height is striden deformation joint seepage; The cleaning deformation joint refills foamed plastics, and lays coiled material again in the seam earlier; Coiled material is received the head place at wall and is fixed with cement nail; And carry out encapsulation process, cover with sheet metal or synthetic high polymer coiled material then, and fix with encapsulant in receipts head position.
The maintenance at said flashing place is carried out as follows: receive a coiled material when concrete wall flashing place and dehisce, come off when serious; Remove original adhesive material and encapsulant earlier; Remove original cement sand bed to deck, and the brushing base treatment agent, sturdy again coiled material; Newly spread extra play in addition, extra play upper berth coiled material is fixed with cement nail then, and top covers with sheet metal or macromolecule coiled material again, obturages with encapsulant at joining place at last.
Said big repairerment comprises the crack maintenance of paving waterproof roll, coil waterproof layer, a maintenance and a drum maintenance of seam opening alice;
The requirement of said paving waterproof roll is: the basic unit of laying coiled material should be solid, smooth, clean; At waterproofing course breakage or detail structure position, should lay the coiled material enhancement Layer; Coiled material is laid and should be adopted completely sticking method construction; Coiled material and coiled material and overlapping the slot position thereof should bond firm, tight-closed; The coil waterproof layer that paving is accomplished should be smooth, overlap joint size >=150mm;
The requirement of said coil waterproof layer crack maintenance is: when adopting the coiled material maintenance, basic unit should clean out, and the sticking width of monolateral point is not less than the coiled material separation layer of 100mm on the crack, and coiled material is laid on top, and new and old waterproofing course should form integral body; When adopting the water-repellent paint maintenance, should clear up floating ash, the foreign material of surface layer along the crack on every side, lay separation layer again along the crack, its width is not less than 100mm; When partitioning slot or deformation joint are arranged under the coiled material crack, the encapsulant that lost efficacy in the seam be should remove, stuffing box packing and pointing encapsulant laid again.
Said water-repellent paint is polyurethane water-proof paint, polyurea waterproof coating material, polymer cement waterproof paint, high-polymer modified pitch water-repellent paint or water-proof acrylic acid paint.
Said encapsulant is synthetic high polymer encapsulant, self-adhering polymer pitch flashing band, butyl rubber water-proof seal adhesive tape or modified bitumen caulked joint ointment.
Positive beneficial effect of the present invention:
(1) waterproof coiled material roof leakage of the present invention is repaired job practices, the construction science, system is reasonable, surveys comprehensively, analyzes rigorous, the seepage that can effectively do up a house, the probability that reduction is done over again and keeped in repair, construction effect is better.
(2) job practices of the present invention is taken all factors into consideration factors such as material, job practices and construction environment, and the application property price ratio is high, and the scope of application is wider.
(3) job practices safety and environmental protection of the present invention can satisfy the use and the security performance requirement of building, can practice thrift human and material resources, financial resources, is applicable to that the seepage of various waterproof coiled material roofings is repaired.
(4) method application practice of the present invention shows that performance is good.Like the student dormitory building of Zhengzhou college town colleges and universities life garden, go into operation in April, 2002, and be completed in August, 2003; Brick mix structure; Through using for many years, the seepage phenomenon appears in the part roofing, and the former waterproofing course of roofing is the SBS coiled material; After adopting job practices of the present invention that roof waterproof layer is repaired, respond well.In addition, this method has also obtained effect preferably in the engineering practice of Henan Hongqiqu Construction Group Co., Ltd..Enforcement of the present invention will obtain favorable economic benefit and social benefit.
Description of drawings:
Fig. 1: parapet, wall and roof-base junction cracking maintenance sketch map;
Fig. 2: concrete wall flashing coiled material is dehisced, is come off, the leakage maintaining sketch map;
Fig. 3: height is striden deformation joint seepage maintenance sketch map;
Among the figure: 1 is former waterproofing course, and 2 is new shop coiled material or film waterproof material, and 3 is new shop extra play, and 4 is the gland layer; 5 is encapsulant, and 6 is wall place waterproofing work layer, and 7 is new shop sheet metal or synthetic high polymer coiled material; 8 is foamed plastics, and 9 is cement nail, and 10 is warming plate.
The specific embodiment:
Embodiment 1: the job practices that the waterproof coiled material roof leakage is repaired
This method comprises: operations such as schematic design, base treatment, the repairerment of thin portion, big face repairerment, retaining test and management maintenance are surveyed, repaired to seepage.
(1) seepage is surveyed
Seepage dam site investigation step is following:
(1) survey content: the environment around the analysis project position, service condition, climate change are to the influence of engineering; Search leakage point, confirm position, present situation that percolating water takes place; The percolating water Changing Pattern; Seepage place quality of waterproof layer present situation and destructiveness; Thin portion waterproof present situation; Analyze leakage cause, influence basin, evaluation structure safety, the energy-conservation extent of damage with other functions of peripheral structure; Reading report is proposed.
(2) the former roofing situation of investigation: understand the structural feature of the prepared roofing system of repairing and the characteristics of former waterproofing course material.
Observe roof basic unit situation, as have or not situation such as cracking.Understand the damaged condition of old waterproofing course, use detection instrument to confirm breakthrough, according to testing result, carry out quantitative evaluation, as the foundation of seepage repairerment.Conscientiously investigate for detail structure, scrutiny is carried out at positions such as skylight, chimney, flashing, negative and positive angle, drain gully, parapet, write down its seepage situation.
(3) the seepage situation is carried out analysis-by-synthesis: on the basis of investigation, serious analysis is confirmed maintenance range and concrete repairerment measure at the scene.Specifically comprise: percolating water is repaired mode, should confirm that sectional repair still overhauls comprehensively according to testing result; To the life requirement of waterproofing course, can consider to repair the performance indications of keeping in repair with waterproofing materials meet the demands.The expense of repairing reinstatement works is carried out comprehensive assessment with guaranteeing the time limit, durability and function of use etc., to confirm expense.
(2) repair schematic design
1, according to surveying the result, the design seepage is repaired scheme, when the seepage repairerment adopts integral body to overhaul measure, should make abundant demonstration.
2, should collect following data before the formulation seepage repairerment scheme:
(1) former waterproof design document; (2) component and fitting, waterproofing materials and the performance indications thereof of former waterproofing system use; (3) former construction organization design, constructure scheme and examination data; (4) all previous repairerment technical data.
3, establishment seepage repairerment scheme should comprise following content:
Should in conjunction with the dam site investigation reading report, confirm to adopt modular repair or integral body to overhaul measure according to house instructions for use, classification of waterproof when (1) drawing up a plan for; (2) measure is repaired at the detail structure position; (3) Water drainage system design and selection; (4) the Main physical performance of waterproofing materials; (5) construction technology and points for attention; (6) waterproofing course relative configurations and functional rehabilitation.
(3) base treatment
1, remove that basic unit is loose, dusting, peeling and protrusion, the surface should be solid, smooth, clean, dry, drainage grade should adhere to specification;
2, the junction of basic unit and outstanding roof structure (parapet, wall, skylight wall, deformation joint, chimney, stretch out roofing pipeline etc.), and the corner of basic unit (Shui Luokou, cornice, gutter, eaves gutter etc.) are fit to do shape in the arc-shaped;
3, the water of internal drainage should be made lower slightly pit around falling mouthful;
4, the gradient of leveling layer should meet the requirement of design pertinent regulations, must not local ponding.
(4) thin portion repairs
The renovation project construction of thin portion should meet following regulation:
(1) constructs according to repairerment scheme and the construction technology formulated; When (2) seepage is repaired construction of waterproof layer, should carry out the processing of node extra play earlier; (3) after the per pass operation completion, can carry out the next procedure construction after should be qualified by inspection.
Thin portion repairs and specifically comprises the following aspects:
1, the maintenance of gutter, eaves gutter coiled material cracking:
Gutter, eaves gutter coiled material cracking seepage are repaired and should be met following regulation:
(1) breakthrough is less or when distributing scattered the maintenance, should remove the failed waterproofing materials of cracking breakage, carries out waterproofing work again, should be connected with former waterproofing course after the repairerment to form integral body, and must not ponding; When (2) overhaul at the serious position of seepage, should play drum, damaged former waterproofing course roots out, clean out; After repairing basic unit, lay coiled material or coating water-repellent paint extra play earlier, lay waterproofing course then again, coiled material is received the head position and should be fixed, seal.
2, the maintenance at flashing place:
(1) when the junction coiled material cracking that exceeds roof structure and roof-base of parapet, wall, should the crack be cleaned out, lay coiled material or coating water-repellent paint again, make new and old waterproofing course form integral body; On body of wall, dig out simultaneously groove; Coiled material is received head be pressed in the groove in the body of wall, and fixing seal, groove is not less than 250mm apart from the height of roofing leveling layer; The top body of wall of parapet, wall should be done one deck waterproofing work; Newly spread coiled material or film waterproof material, and newly spread extra play, cover former waterproofing course coiled material.Referring to Fig. 1.
(2) receive a coiled material and dehisce, come off when not serious at parapet flashing place; Should remove original adhesive material and encapsulant; Again adopt the real coiled material of the completely sticking choice specimen of calligraphy, top covers a layer coiled material and coiled material is received head spread to parapet and bear down on one down, follows closely press fit with press strip; And tight-closed with encapsulant, bear down on one and should do waterproofing work.
(3) receive a coiled material when concrete wall flashing place and dehisce, come off when serious, should remove former waterproof materials such as original adhesive material, encapsulant, remove original cement sand bed to deck; And the brushing base treatment agent, adopt the real coiled material of the completely sticking choice specimen of calligraphy again, newly spread extra play in addition; At extra play upper berth coiled material or film waterproof material; Fixing with cement nail then, obturages with encapsulant at joining place after adopting sheet metal or macromolecule coiled material to cover at last in top.Coiled material is received cephalic par should cut out together the maximum pitch of nails≤300mm of cement nail.Referring to Fig. 2.
(4) bear down on one mortar cracking, when peeling off, should reject the polymer cement mortar of smearing the shop, back or build the C20 pea gravel concreten, the waterproofing work of reforming.
3, the maintenance of deformation joint seepage:
(1) when roofing horizontal distortion seam seepage; Need to remove original coil waterproof layer, cementitious materials and encapsulant in the deformation joint, it is clean, dry that basic unit keeps, the brushing base treatment agent; Fill stuffing box packing in the seam; And tight with the coiled material capping, the top should add button concrete cover or metal cover board, and metal cover board should be done antirust processing simultaneously;
(2) when height is striden deformation joint seepage, should clear up deformation joint earlier, refill foamed plastics in the seam; And lay coiled material again, and on body of wall, dig out groove simultaneously, coiled material is received head be pressed in the groove in the body of wall; And fixing seal, groove is not less than 250mm apart from the height of roofing leveling layer, and coiled material is received the head place at wall and is fixed with cement nail; And carry out encapsulation process, cover with sheet metal or synthetic high polymer coiled material then, and fix with encapsulant in receipts head position.Referring to Fig. 3.
4, the water leakage maintaining of place's water proof structure that falls mouthful: the horizontal type water mouthful coiled material that falls is received the head place and is dehisced, comes off when causing seepage, should remove former waterproofing course, cleans out, and is fit to do the coating waterproofing extra play, re-lays coil waterproof layer; When seepage occurring, should remove former encapsulant in the groove with the basic unit contact position, pointing encapsulant again after the base treatment, surface layer coating water-repellent paint, thickness should be less than 2mm.
When 5, stretching out the pipeline root seepage of roofing, should the coiled material around the pipeline, adhesive material and encapsulant be removed totally, with the pipeline root cement mortar round platform of reforming, top pointing encapsulant is set up extra play, and surface layer covers with coiled material; The overlapping the slot lap width should be less than 200mm, and bonding firmly, and is tight-closed.Coil waterproof layer is received head place applied metal hoop banding, and obturages with encapsulant.
(5) big face is repaired construction:
Big face renovation project construction should meet following regulation:
(1) constructs according to repairerment scheme and the construction technology formulated; (2) after the per pass operation completion, can carry out the next procedure construction after should be qualified by inspection; (3) the receipts head of waterproofing course should take to seal strengthening measure.
Big face is repaired construction and is specifically comprised the following aspects:
1, the paving waterproof roll should meet following regulation:
(1) basic unit of laying coiled material should be solid, smooth, clean, and its degree of drying should be confirmed by the kind and the construction requirement of coiled material; (2) at waterproofing course breakage or detail structure position, should lay the coiled material enhancement Layer; (3) coiled material is laid and should be adopted completely sticking method construction;
(4) coiled material and coiled material and overlapping the slot position thereof should bond firm, tight-closed; The coil waterproof layer that paving is accomplished should be smooth, and the overlap joint size is answered >=150mm; When (5) modified bitumen class waterproof roll adopts the hot melt construction, answer homogeneous heating, must not underheat or burn coiled material, PUR should be overflowed in the overlapping the slot position.
2, the maintenance of coil waterproof layer crack should meet following regulation:
When (1) adopting the coiled material maintenance, basic unit should clean out, and on the crack, should glue the coiled material separation layer that width is not less than 100mm by monolateral point, and coiled material is laid on top, and new and old waterproofing course should form integral body; When (2) adopting the coating maintenance, should clear up the floating ash of surface layer, foreign material along the crack on every side, lay separation layer again along the crack, its width is not less than 100mm; Coating has the water-repellent paint of carcass reinforcing material, receives the head place and answers the multipass brushing paint, and seal tight; When (3) under the coiled material crack partitioning slot or deformation joint being arranged, the encapsulant that lost efficacy in the seam be should remove, stuffing box packing and pointing encapsulant laid again; Encapsulant should be full, closely knit, must not entrain into air in the construction.
3, when coiled material seam opening, alice, maintenance should meet following regulation:
(1) adhesive material, encapsulant and the dust of the former adhesive surface of cleaning keep adhesive surface clean, dry; (2), adopt hot melt or bonding method that the coiled material seam is cemented, and covering one deck width along seam, to be not less than the coiled material sealing of 200mm tight according to designing requirement or constructure scheme; (3) coil waterproof layer is laid in aging serious should the cutting off of open seam place coiled material again, and seam crossing is tight with the encapsulant sealing, bonding is firm.
When 4, coil waterproof layer plays the drum maintenance, the coil waterproof layer bubbling is removed with lancinating, remove former gluing material, keep basic unit clean, dry, lay coil waterproof layer again, the waterproofing course seam crossing should bond firmly, seal tight.
5, the coil waterproof layer part be full of cracks, embrittlement are arranged, when aging phenomenon such as rotting, maintenance should meet following regulation:
(1) should root out former aging waterproofing course, and base cleaning is clean, repair smooth; Should lay coil waterproof layer again by designing requirement when (2) adopting the coiled material maintenance, its overlapping the slot should bond firmly, seal tight; When (3) adopting the coating maintenance, should be coated with film waterproof material again, receive the head place and answer the multipass brushing, and seal tight by designing requirement.
Again the waterproof coiled material layer thickness of laying, the requirement that new and old coiled material lap width should meet table 1.
The lap width of table 1 coiled material thickness, new and old coiled material
(6) retaining test: the roofing after inspection is repaired has leakproof, and whether ponding and drainage system be unimpeded, carries out behind the Ying Zaiyu or behind the lasting trickle 2h; Have ready conditions and carry out the position of retaining check, check that the most shallow place of retaining must not be less than 20mm after answering retaining 24h.
Used coiled material is polymer modified bituminous waterproof sheet material among the embodiment 1, adopts hot melt or gluing method laying construction; Coating adopts polyurethane water-proof paint, and encapsulant adopts self-adhering polymer pitch flashing band.
Embodiment 2: the waterproof coiled material roof leakage is repaired job practices
Job practices is identical with embodiment 1, and difference is: used coiled material is synthetic polymeric waterproofing material, and coating adopts spray polyurea waterproofing coating, and encapsulant adopts the butyl rubber water-proof seal adhesive tape.
Embodiment 3: job practices is identical with embodiment 1, and difference is:
Used coiled material is asphalt free waterproof roll, and coating adopts spray polyurea waterproofing coating, and encapsulant adopts the butyl rubber water-proof seal adhesive tape.
The concrete proportioning of wherein asphalt free waterproof roll is in weight portion: 65 parts of rosin, 50 parts of vegetable oil, 40 parts of SBSs, 10 parts of French chalk.Production method: use heat-conducting oil heating equipment to heat, add rosin earlier, add vegetable oil when being heated to 160-200 ℃, stir; Add SBS, French chalk again, promptly obtain waterproof roll of the present invention after stirring.Job practices is identical with the modified bituminous pitch coiled material job practices.
Embodiment 4: identical basic identical with embodiment 3, difference is:
Used coiled material is asphalt free waterproof roll, and coating adopts water-proof acrylic acid paint, and encapsulant adopts the modified bitumen caulked joint ointment.The concrete proportioning of wherein asphalt free waterproof roll is: 68 parts of rosin, 55 parts of vegetable oil, 40 parts of SBSs, 12 parts of French chalk.
Claims (7)
1. the waterproof coiled material roof leakage job practices of repairing, this method comprises that base treatment, thin portion repair and big face is repaired, it is characterized in that: maintenance, the maintenance at flashing place and the maintenance of deformation joint that comprises that gutter and eaves gutter coiled material ftracture repaired by thin portion; The maintenance of said gutter and eaves gutter coiled material cracking is carried out as follows: when less or breakthrough distributes scattered the maintenance when breakthrough; Should remove the waterproofing materials that the cracking breakage lost efficacy; Again carry out waterproofing work, should be connected with former waterproofing course after the repairerment form whole, and must not ponding; When overhaul at the serious position of seepage, should with play drum, damaged former waterproofing course roots out, clean out; After repairing basic unit, lay coiled material or coating water-repellent paint extra play earlier, lay waterproofing course then again, coiled material is received the head position and should be fixed, seal;
The maintenance at said flashing place is undertaken by following method: when the junction coiled material that exceeds roof structure and roof-base of parapet, wall ftractures, earlier the crack is cleaned out, laid coiled material again, make new and old waterproofing course form integral body; On body of wall, dig out simultaneously groove, coiled material is received head be pressed in the groove in the body of wall, and fixing seal, groove is not less than 250mm apart from the height of roofing leveling layer, and the top body of wall of parapet, wall should be done waterproofing work;
Used coiled material is asphalt free waterproof roll, and this waterproof roll is in weight portion, and it consists of rosin 65-70 part, vegetable oil 50-55 part, SBS 40-45 part, French chalk 10-15 part.
2. job practices according to claim 1 is characterized in that: said base treatment is undertaken by following method: remove substrate surface earlier, the surface should be solid, smooth, clean, dry, and drainage grade should adhere to specification; Circular shape is made in the junction of basic unit and outstanding roof structure and basic unit corner; Around falling mouthful, makes in the water of internal drainage lower slightly pit; The gradient of leveling layer is 1～2%.
3. job practices according to claim 1; It is characterized in that: the maintenance of said deformation joint is carried out as follows: when roofing horizontal distortion seam seepage, need to remove original coil waterproof layer, cementitious materials and the encapsulant in the deformation joint, make basic unit keep clean, dry; Brushing base treatment agent then; Fill stuffing box packing in the seam, and tight with the coiled material capping, and the top should add button concrete cover or metal cover board; When height is striden deformation joint seepage; The cleaning deformation joint refills foamed plastics, and lays coiled material again in the seam earlier; Coiled material is received the head place at wall and is fixed with cement nail; And carry out encapsulation process, cover with sheet metal or synthetic high polymer coiled material then, and fix with encapsulant in receipts head position.
4. job practices according to claim 1; It is characterized in that: the maintenance at said flashing place is carried out as follows: receive a coiled material when concrete wall flashing place and dehisce, come off when serious; Remove original adhesive material and encapsulant earlier; Remove original cement sand bed to deck, and the brushing base treatment agent, sturdy again coiled material; Newly spread extra play in addition, extra play upper berth coiled material is fixed with cement nail then, and top covers with sheet metal or macromolecule coiled material again, obturages with encapsulant at joining place at last.
5. job practices according to claim 1 is characterized in that: said big repairerment comprises the crack maintenance of paving waterproof roll, coil waterproof layer, a maintenance and a drum maintenance of seam opening alice;
The requirement of said paving waterproof roll is: the basic unit of laying coiled material should be solid, smooth, clean; At waterproofing course breakage or detail structure position, should lay the coiled material enhancement Layer; Coiled material is laid and should be adopted completely sticking method construction; Coiled material and coiled material and overlapping the slot position thereof should bond firm, tight-closed; The coil waterproof layer that paving is accomplished should be smooth, overlap joint size >=150mm;
The requirement of said coil waterproof layer crack maintenance is: when adopting the coiled material maintenance, basic unit should clean out, and the sticking width of monolateral point is not less than the coiled material separation layer of 100mm on the crack, and coiled material is laid on top, and new and old waterproofing course should form integral body; When adopting the water-repellent paint maintenance, should clear up floating ash, the foreign material of surface layer along the crack on every side, lay separation layer again along the crack, its width is not less than 100mm; When partitioning slot or deformation joint are arranged under the coiled material crack, the encapsulant that lost efficacy in the seam be should remove, stuffing box packing and pointing encapsulant laid again.
6. according to each described job practices of claim 1-5, it is characterized in that: said water-repellent paint is polyurethane water-proof paint, polyurea waterproof coating material, polymer cement waterproof paint, high-polymer modified pitch water-repellent paint or water-proof acrylic acid paint.
7. according to each described job practices of claim 3-5, it is characterized in that: said encapsulant is synthetic high polymer encapsulant, self-adhering polymer pitch flashing band, butyl rubber water-proof seal adhesive tape or modified bitumen caulked joint ointment.
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| CN201010525215A CN101994399B (en) | 2010-10-30 | 2010-10-30 | Method for repairing leaked coiled-material water-proof roof |
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| CN201010525215A CN101994399B (en) | 2010-10-30 | 2010-10-30 | Method for repairing leaked coiled-material water-proof roof |
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