Ceiling acceptance details: no ceiling for concrete base: 1. Construction shall be carried out in accordance with the requirements of the operating sequence. 2. The base layer is clean, and it is firmly combined with the bottom ash without hollowing. 3. The surface is flat and smooth, no trace of iron trowel, no blistering, peeling, cracks. 4. If the surface is painted with latex paint, the quality requirements can be checked with reference to the quality inspection requirements of wall cylinder emulsion paint. Wooden ceiling: 1. Construct in order of operation. 2. The wooden keel has no knots, the length of the wooden keel should be connected firmly, and the boom should be firmly connected with the wooden keel and the floor. 3. All keels must be painted with fireproof and corrosion-resistant paint. 4. The ceiling keel is considered to sag in the future, so after installation, the center should be arched 1/200 on the short side. 5. Where there are lampshades, curtain boxes, etc., keels should be added, and ceiling fans must not bear the force on the dragon frame. 6. The cover panel should be flat, free of angles, peeling, degumming, etc. If there is mosaic, the pattern should be designed according to the regulations.
Ceiling acceptance specification: metal ceiling project acceptance specification: applicable to all kinds of metal plate (strip plate, square plate, grid) ceiling project. Inspection quantity: general survey of perception, 20% of the total number of random random inspections of allowable deviation items. 1. Guaranteed items: The ceiling and base project of the metal plate must meet the relevant regulations of the base project. The material, variety, specification, color and shape and size of the metal plate used for the suspended ceiling must meet the design requirements and the current relevant national standards. The connection between the metal plate and the keel must be firm and reliable, and must not be loosened or deformed. The location of equipment ports and lamps should be reasonably arranged, symmetrical according to strips and blocks, and beautiful. The cutting size is accurate and the edges are neat and no seams are exposed. The arrangement is straight and square. Inspection method: observation, hand turning, and ruler measurement. 2. Basic items: (1) The installation quality of the metal plate should meet the following requirements and be qualified: the plate surface is accurate; the surface is smooth; the seams and interfaces are tight; the plate seams are straight, without obvious dislocation, and the width is uniform; The yin and yang angles are closed and square; the shoulder angle and cutting direction of the decorative line are correct. Excellent: Accurate camber of the board; smooth surface; tight joints and joints; staggered and orderly arrangement of the joints of the strip plate, straight joints, no dislocations, and uniform width; the Yin and Yang angles are squarely closed; decorative thread shoulders The angle and cutting direction are correct, and the joints are tight and the special-shaped board discharge position is reasonable and beautiful. (2) The surface of the metal plate should meet the following requirements: Qualified: The surface is clean, free of angles, bumps, and the coating is intact without scratches and no obvious color difference. Excellent: The surface is clean and tidy, without warpage or bumps, the coating is intact without scratches, and the color is consistent and beautiful. Inspection method: observation, wire drawing, ruler measurement. Wood plywood ceiling acceptance: applicable to all kinds of metal plate (strip board, square board, grid) ceiling project. Inspection quantity: general survey of perception, 20% of the total number of random random inspections of allowable deviation items. 1. Guaranteed items: The material, variety, specification of the cover panel, and the base structure and fixing method of the ceiling shape must meet the design requirements and the current relevant national standards. The installation of light steel keel or wooden dragon frame must comply with the relevant regulations in Chapter 2 of this standard. The wooden keel and plywood must be fireproof and flame retardant according to relevant regulations. The connection between the cover panel and the keel must be tight and firm. The location of equipment ports and lamps must be set symmetrically according to the plates, and the layout should be reasonable; the edges of the openings should be neat, and the guards should be tight and not exposed. The arrangement is straight, neat and beautiful. Inspection method: observe, measure with ruler and check by hand. 2. Basic items: (1) The surface quality of the cover panel should meet the following requirements: Qualified: The surface is smooth, arching is correct, the color is consistent, clean, no pollution, no rust, pitting, hammering, no exposed nail caps. Excellent: smooth surface, accurate arching, consistent color, clean, no pollution, no return rust, pitting, hammer marks, evenly arranged self-tapping screws, no exposed nail caps, no cracks. (2) The quality of the seams and beading of the cover panel shall meet the following requirements: Qualified: The seams are located on the keel and have uniform width, beading straight, no warping, smooth and fluent, tight seams, and no leakage. The corners of yin and yang are closed and square. Good: The seams are uniformly located on the keel, the bead is straight, the width is the same, no warping, smooth, smooth and straight, the seams are tight, no leakage, and the Yin and Yang angles are square. (3) Those with shaping requirements shall meet the following requirements: Qualified: The shaping size and position are correct, and the closing is tight and flat. Excellent: accurate modelling size and position, tight and flat closing, smooth curve and beautiful appearance. Inspection method: observe and measure with ruler.
Ceiling acceptance method: no ceiling for concrete base: 1) Construction should be carried out according to the order of operation. 2) The base layer is clean, and it is firmly combined with the bottom ash, and there is no hollow drum. 3) The surface is flat and smooth, no traces of iron trowel, no blistering, peeling, and cracks. 4) If the surface is painted with latex paint, the quality requirements can be checked with reference to the quality inspection requirements of wall cylinder emulsion paint. Wooden ceiling: 1) Construct in order of operation. 2) The wooden keel has no knots, the length of the wooden keel should be firmly connected, and the boom should be firmly connected with the wooden keel and the floor. 3) All keels shall be painted with fire-resistant and corrosion-resistant paint. 4) The ceiling keel is considered to sag in the future, so after installation, the center should be arched 1/200 on the short side. 5) Where there are lampshades, curtain boxes, etc., keels should be added, and the ceiling fan should not bear the force on the dragon frame. 6) The cover panel should be flat and free of angles, peeling, degumming, etc. If there is mosaic, the pattern should be designed according to the regulations. Plastering ceiling with slats and steel mesh: 1) The requirements for wooden keel grids are the same as those for wooden ceilings. 2) The joints of the slats must be staggered, the surface of the board should not be over polished, and the slats and steel wire mesh must be nailed firmly. 3) Lime paste must be fully matured, and no fixed particles of lime are allowed to avoid bubbling up after plastering. 4) The slats are dry and easy to absorb water and expand. After absorbing water, the plaster is dry and easy to crack. Therefore, after the bottom ash is dried, spray water to wet it, and then apply the leveling layer to combine with each other. Light steel keel ceiling: 1) The selected light steel keel should meet the design requirements and ensure the quality. 2) All parts and keels in the ceiling should be galvanized. 3) The keel, boom, and connecting piece should be in the correct position, and the material should be flat, straight, and firmly connected without looseness. 4) For all suspended load-bearing parts, a horizontal secondary keel must be added. 5) The distance between the boom and the end of the main keel shall not exceed 300mm. 6) The quality tolerance standard can refer to the wooden ceiling. 7) How to check the decoration quality of aluminum alloy keel ceilings can also refer to light steel keel ceilings.
Ceiling acceptance criteria: 1. The variety, specification, color, base structure and fixing method of the materials used in the ceiling construction should meet the design requirements. 2. All types of keel ceilings must be fixed firmly. After the fixing is completed, a comprehensive inspection and leveling should be carried out, and the installation position should be checked whether it is correct. 3. The specifications of the wooden square used for the wooden frame should be in accordance with the design requirements. The wooden squares should be glued and then fixed with nails, and the side contacting the cover panel must be flattened. 4. The wooden frame structure of the ceiling should meet the fire protection requirements. 5. All kinds of cover panels should not have defects such as bubbles, peeling, cracks, missing corners, dirt and pattern defects. The surface should be flat, the edges should be neat, and the color should be consistent. 6. The hole spacing of the perforated board should be neatly arranged, and the glued zone and wood fiber board should not be degummed, discolored and decayed. 7. If plywood and medium density fiberboard are fixed with nails, the nail distance is 80-120mm, and the nail length is 25-35mm. The nail cap should be flattened and enter the board 0.5-1mm, and the nail holes should be smoothed with oily putty. 8. When varnishing the plywood surface, the wood grain and color of the adjacent board surface should be similar. 9. When pasting or painting the cover panel, the joints should be pasted with white latex and muslin cloth, and at least 5cm overlap on both sides of the joint.