Quality requirements for roofing works
Author: Senwang
Time: 2020-09-30
Quality requirements for roofing works
1.The waterproof layer shall not have leakage or water accumulation
2.The materials used in the roofing project should meet the design requirements and quality standards.3.The surface of the leveling layer is smooth, and there should be no looseness, sanding, and peeling.4.The thickness, moisture content and apparent density of the insulation layer should meet the design requirements5.Structures such as gutters, gutters, flooding and deformation joints shall meet the design requirements.6.Coil paving method and lap sequence should meet the design requirements, the lap width is correct, the seams are tight, and there should be no wrinkles, bubbling and edge warping.7.The thickness of the waterproof layer of the coating film should meet the design requirements, and the coating should be free of cracks, wrinkles, flow, bubbling and carcass exposure.8.The surface of the rigid waterproof layer should be smooth, calendered, free of sand, skin, and cracks. The division seam should be straight and in the correct position.9.The caulking sealing material should be firmly bonded to the base layer on both sides, and the sealing part should be smooth and straight, and there should be no cracks, bubbling, or collapse.10.The base layer of the tile roof should be level and firm, the tiles should be neatly arranged, straight, lap joints are reasonable, the joints should be tight, and there should be no incomplete tiles.Contents of roofing project quality inspection and acceptance
Preparatory work inspection and acceptance: Before the waterproofing project construction, it should be checked whether the roofing project has passed the joint review of drawings, whether the content of the construction plan or technical measures is complete, whether the process arrangement is reasonable, whether the progress is scientific, whether the quality requirements are clear, and whether the quality objectives are formulated; Review the qualification level of the waterproof professional construction team and the job certificate of the construction personnel; check the entry of roofing materials, whether the on-site appearance inspection of the materials is qualified, whether the sampling on-site meets the standards, whether the test data is valid, and whether it meets the design requirements; check the construction The quantity and integrity of machinery and labor protection supplies.
2.Inspection and acceptance of the quality of the base: Before the construction of the leveling layer, check whether the quality of the base layer of the structure meets the requirements of waterproof engineering construction, whether the quality of the leveling layer raw materials is qualified, whether the ratio is accurate, whether the water-cement ratio and consistency are appropriate; Whether the position is accurate, whether the cement mortar is compacted, whether the slope is accurate, whether the second calender is performed in time; the surface quality of the leveling layer is checked.3.Inspection and acceptance of the quality of the insulation layer: whether the variety of the insulation layer material is correct, whether the quality is qualified, whether the thickness of the board is accurate; whether the ratio of the overall cast-in-place insulation layer is correct, whether the mixing is uniform, and whether the degree of compaction meets the requirements; loose insulation materials Whether the thickness and degree of compaction of the layered virtual paving are the same as the parameters determined by the test; whether the plate-shaped insulation material is laid smoothly, whether the gap between the plates is filled with similar materials and whether the joints of the upper and lower plates are staggered; after the completion of the insulation layer construction Whether to carry out the construction of the leveling layer and waterproof layer in time, if it rains before covering, whether temporary covering measures are taken, and the moisture content of the insulation layer should be re-measured after the rain.4.Quality inspection and acceptance of the waterproof layer: Check whether the quality of the base layer (leveling layer) is qualified before the construction of the waterproof layer; whether the waterproof layer materials and supporting materials have passed the sampling inspection, whether the weather conditions during the waterproof layer construction meet the requirements, and whether the detailed structure is in accordance with It is required to add an additional reinforcement layer; whether there is a spring line before the coil is laid, whether the coil construction sequence and construction process are correct, whether the laying direction is correct, whether the bonding method meets the design requirements, whether the air under the coil is exhausted, and the coil Whether the overlap width meets the requirements, whether the coil joints are reliable, whether the sealing is tight; whether the proportion of waterproof coating is accurate, whether the mixing is uniform, whether the amount of each coating is appropriate, the uniformity of the coating, the number ofcoating passes Whether the total amount of coating and coating meets the requirements, whether the interval between brushing is sufficient, whether the laying direction and overlap width of the carcass reinforcement meet the requirements, whether the thickness of the coating waterproof layer meets the design requirements; between the rigid waterproof layer and the structural base layer Whether there is an isolation layer, whether the position of the split joint template is correct, whether the template is firm, whether the type and specification of steel bars meet the design requirements, whether the spacing and position of the steel bars are correct; whether the proportion of fine stone concrete is accurate, and whether the mixing is uniform, each grid Whether the concrete is continuously poured, whether the concrete is compacted and polished, whether the secondary calendering is performed in time, whether the curing is timely and sufficient, whether the curing time meets the requirements, whether there are cracks, shells, sand and other defects on the surface, and the surface smoothness is allowed Whether the deviation meets the requirements.5.The quality inspection and acceptance of the protective layer: whether the waterproof layer has been accepted and qualified, whether measures have been taken to protect the waterproof layer during the construction of the protective layer; whether the light-colored paint protective layer is evenly painted, whether there is any leakage or bottoming phenomenon; mung bean sand, mica or Whether the vermiculite is evenly spread and whether the bonding is firm; whether there is an isolation layer between the cement mortar, block material or fine stone concrete protective layer and the waterproof layer, whether the position of the partition is accurate, whether the cement mortar or concrete is dense, and whether the surface is there Defects; whether the drainage slope of the protective layer meets the design requirements.6.Quality inspection and acceptance of tile roof: Whether the tile and its supporting materials are qualified for sampling inspection, whether the quality of the base layer is qualified, whether the joints are reinforced, and whether the waterproof layer is checked and accepted; whether the water strip and the hanging strip of the flat tile roof are consistent with The material size matches, whether the paving nails are smooth and firm; whether the flat tiles are laid firmly, whether fixing measures are taken when the slope is too large, whether the tile surface is neat, flat and straight, between the ridge tiles and the flat tiles, between the ridge tiles, and the flat tiles Whether the direction and size of the covering is correct, whether the roof and the sloping ridge are straight; whether the number of linoleum tile fixing nails is enough, whether the nails are flat and nailed, whether the nail caps are exposed, and whether the linoleum is in close contact with the base layer. Whether the butt seams between the tiles are staggered; whether the metal plates are installed and fixed correctly, whether the overlap width meets the requirements, whether the joints between the plates are sealed, whether the sealing is tight, whether the bolt fixing points are tightly sealed, cornice lines, flooding Whether the segment is straight.7.Acceptance of the thermal insulation roof: whether the waterproof layer is qualified before the construction of the thermal insulation layer, whether measures are taken to protect the waterproof layer; whether the quality of the overhead thermal insulation products meets the requirements, whether the roof is cleaned before the construction of the overhead slab, buttresses Is there any strengthening measures at the bottom, whether the spacing of the buttresses is accurate, whether the overhead slabs are paved with mortar, whether the laying is smooth and stable, whether the height difference of adjacent slabs meets the standard, whether the joints of the slabs are tightly packed; the division of water storage areas And whether the structure is correct, whether the position, size, and elevation of the drainage pipe, overflow, water supply pipe, and water hole meet the design requirements; whether the drainage slope of the planting roof is accurate, whether the planting layer and hydrophobic layer materials meet the design requirements, and whether the drainage hole Whether the location, size, and elevation meet the design requirements.8.Leakage inspection of the roof waterproof layer: Check whether the roof has leakage, accumulation of water, and whether the drainage system is unblocked. It should be carried out after rain or after continuous water spraying for 2 hours. For roofs that may be tested for water storage, the water storage time shall not be less than 24h. During the inspection, the ceiling of the top room should be carefully inspected one by one. If there is leakage, the state of the leakage should be recorded, the cause should be found out, and repairs should be carried out in time until there is no leakage on the roof.
