For the construction of roof waterproof layer, the base course must be cleaned before construction, without laitance, gravel and other sundries, and the surface shall be flat and dry
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If the detailed structural treatment cannot meet the design requirements, it will have a significant impact on the quality of waterproof engineering
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5
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The treatment agent shall be applied and sprayed evenly
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C
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A 2m long ruler shall be used for surface flatness inspection, and the gap between the ruler and the base course shall not exceed 5mm
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Strictly implement the regulations on material mobilization acceptance and sampling for inspection
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Snap the line and test lay the coiled material at the base course, and determine the laying scheme of the coiled material according to the coiled material specification, laying requirements, roof drainage slope and detail size
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First melt the anti sticking layer and granular protective layer on the coiled material at the position to be overlapped, melt the adhesive on both sides of the joint, then conduct bonding and exhaust, compact with hand, and have obvious asphalt strips, and finally seal the lap edge of the waterproof coiled material
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Roof waterproof engineering management requirements In order to strengthen the construction management of the project roof waterproof project, the management personnel of your company and the personnel of the supervision department are convened in the morning to hold a meeting in the site office to make clear requirements on the importance and management requirements of the roof waterproof project
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Apply and spray the treatment agent on the base course, commonly known as cold bottom oil
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c 、 Paving of two adjacent coiled materials on the same layer: the transverse overlapping edge shall be staggered by more than 1500mm, and the upper and lower coiled materials shall not be pasted vertically to each other
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Only gentle change is allowed, and there shall be no more than one place per meter
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The detailed treatment includes the treatment of rainwater inlet, gutter, exhaust outlet, reinforcement at the connection with parapet root, etc
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Laying of waterproof coiled material the laying of waterproof coiled material shall be parallel or perpendicular to the ridge direction according to the specification requirements
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Air compressor, spraying pressure tank, liquefied gas spray gun, high-pressure blower, trowel, scraper, safety belt, small flat shovel, mixer, brush, special flame gun, wallpaper knife, rope, roller and other necessary tools shall be equipped to facilitate on-site construction
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Be familiar with the roof structure of the construction site, determine the project quality plan, construction scheme, operation guidance plan and schedule arrangement, determine the personnel and material supply plan according to the actual situation of the site, and make arrangements for temporary safety protection buildings around the roof
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The key points of the meeting are listed below, which are required to be carefully implemented in the construction process
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We plan to lay the waterproof coiled material from low to parallel to or out of the ridge according to the actual situation of the roof site
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According to the tight construction period of the project, all tools and equipment must be fully prepared
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Pay attention to the baking temperature and time to make the asphalt layer melt
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4、 Construction method 1
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6、 Detail structure treatment another key process of waterproof roll laying is detail structure treatment
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1
D
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Roll and roll the coiled material forward while baking to make it firmly bonded with the base course or coiled material
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4
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The surface shall be flat to ensure that the base course is hard and free from sand, cracks, looseness, bulging and inequality
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Work overtime at night, submit the work plan in advance and make preparations for construction at night..
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After the base course is treated and dried, the waterproof coiled material shall be laid
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After the first coil paving passes the inspection, the subsequent process construction shall try to avoid damaging the completed waterproof layer
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Protective measures for the safe operation of phase I shall be formulated during the construction process to ensure that the normal operation of phase I will not be affected
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If the waterproof layer is damaged accidentally, the damaged party shall inform me in time for maintenance
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3
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The overlapping size, additional layer, flanging and other details of waterproof coiled material, the welding quality shall meet the specification requirements, and the coiled material shall be laid flat without hollowing
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2
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B
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Bake the included angle between the bottom surface of the coiled material and the base course with a fire gun
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Strictly implement the procedure of process acceptance and application for inspection, complete the acceptance of each process, and synchronize the acceptance data with the construction
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After the coil is paved, the overlapping part, end and coil end must be sealed, and the water outlet of the pipe root shall be embedded with sealing material and sealing glue for reinforcement
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The base treatment agent shall be applied uniformly
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If the waterproof base has defects or ponding, it must be treated, and the waterproof layer can be constructed only after it is qualified
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Submit waterproof construction scheme and appoint waterproof professional technicians to guide the construction on site
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The inspection and acceptance of the base course requires that the surface of the base course be dry, and its moisture content shall not exceed 8% as specified, or pass the cover bonding test
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Inspect the base course with the participation of the owner, on-site supervisor, construction unit and relevant units
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b 、 Short side lap: both ends of the coiled material must be bonded, and the lap width and single-layer width shall be ≥ 100mm
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3
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Lap the coiled material according to the following method: a 、 The lap width of the long side of the coiled material shall not be less than 8mm: the lap width of the short side of the coiled material shall not be less than 12mm, which must be operated carefully
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Contact number of professional waterproof construction team of roadshow platform: 19939854797sbs modified asphalt waterproof coiled material construction scheme SBS modified asphalt waterproof coiled material construction scheme project name: project address: I
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2
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The supervision unit shall strengthen patrol inspection and on-site supervision, and invite experienced experts of the supervision company to provide on-site guidance
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2
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Do a good job in the written disclosure of workers’ quality and safety technology, so that the operators can master the construction technical requirements and safety work regulations
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3
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4
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5、 Protective measures for finished products: after the first coil paving passes the inspection, protective measures shall be taken for the waterproof layer
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The acceptance work of main parts shall be photographed, uploaded to the wechat group of project management, sorted and archived
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3、 According to the requirements of the actual situation of the construction site, the auxiliary materials shall be materials that meet the national and industrial standards, such as sealing paste, cold primer oil, etc
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The second waterproof construction process is the same as the first one, but it should be noted that the long side joints of the upper and lower layers of coiled materials should be staggered by no less than one third of the width, and the short side lap joints should be staggered by no less than 1.5m 。 d 、 Lap joint on the short side of coiled material with slate sheet: the rock sheet layer at the lap joint shall be removed, the position shall be determined on the coiled material, the relevant parts shall be heated with a blowtorch, and then the slate part shall be scraped off with a trowel
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Before construction, the accepted base course shall be cleaned and the dust at the edges and corners shall be blown away
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For the construction of cold primer, the base course passing the acceptance shall be cleaned first, and the surrounding parapets shall be painted with one-component polyurethane waterproof coating to prevent the waterproof coiled material of the surrounding parapets from falling off
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The cold primer oil can be applied only after it is reported to the supervisor and Party A for inspection
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There is no ponding on the surface, and the drainage slope shall meet the design requirements
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If the subsequent process will have a great impact on the waterproof layer, please contact our on-site management personnel before construction to discuss the protective measures of the waterproof layer
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After the base treatment agent is dried, the parts of the roof waterproof project requiring additional layers shall be reinforced according to the design requirements
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Actively cooperate with the operation and maintenance department in accordance with the owner’s internal management regulations
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A
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Materials selected for material preparation are Dongfang Yuhong 3mm thick SBS, all materials have been mobilized and passed the test
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The application of cold primer oil shall be thin and uniform without blank, pitting and bubble
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Do a good job in safe and civilized construction, provide sufficient fire-fighting equipment, and do a good job in edge and portal protection
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Organize the arrival of necessary construction tools according to the plan, and carry out necessary commissioning and inspection of on-site construction equipment according to regulations to ensure the normal operation of construction equipment
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Determine the paving sequence and direction of coiled materials, snap lines on the base course, and then pave coiled materials
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construction preparation 1
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6
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Implement the material supply plan, do a good job in the inspection of materials entering the site with the participation of the on-site supervision engineer, and send samples for inspection if necessary; The specific construction acceptance procedures are shown in the figure below: II
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The fire gun is about 300mm away from the junction to liquefy the asphalt layer on the surface of the coiled material
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Cross construction shall be minimized to avoid damage to the waterproof layer
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