Suspended ceiling construction specifications and acceptance standards for carpentry work
1. A large sample of the suspended ceiling will pop up on the top according to the proportion of the design drawing, and construction can only be carried out after design review.
2. For wooden keel ceilings, the fixed points along the top keel should be less than or equal to 400mm. Use expansion bolts for reinforcement every 1000mm. The fixed point of the keel along the wall is less than or equal to 400mm. The keel grid is less than or equal to 400mm Before sealing the board, perform fireproof treatment on the wooden keels, and fireproof paint must be applied on the ground.
3. Light steel keel ceiling, the main pendant spacing is 600-800mm, using 6-8mm boom, the main keel spacing is less than or equal to 1000mm, the main pendant is less than or equal to 300mm from the top of the main keel, and the secondary keel spacing is less than or equal to 400mm, the distance between reinforced sub-keels is less than or equal to 1200mm, and the two walls must be sealed with gypsum board facings.
4. All keels should be firmly fixed. When doing leveling, the arch should be 1/200mm. Where there are chandeliers, suspenders and keel frames need to be added. The ceiling should be flat, with an error of less than or equal to 2mm within 2000mm. , less than or equal to 3mm within 3000mm, less than or equal to 5mm within 5000mm, the horizontal error is the same as above.
5. Except for special designs, all panels are made of gypsum board. Models that cannot be created with plaster can be made with other materials. The distance between screws for fixing gypsum board should be less than or equal to 200mm. 10-15mm from the edge of the board. The nail cap is 0.5mm lower than the board surface. The joints of the gypsum board should be V-shaped and 5mm wide. The gypsum board can only be installed after passing the quality inspection.
6. Partition wall light steel keels, the vertical keel spacing is less than or equal to 400mm, and the reinforced keel spacing is less than or equal to 1500mm. Within 2000mm vertically, it should be less than or equal to 2mm, and within 3000mm, it should be less than or equal to 3mm. The flat surface shall be less than or equal to 2mm within 2000mm, less than or equal to 3mm within 3000mm, less than or equal to 5mm within 5000mm, and the height from the original wall shall be 3mm. The bottom part of the background wall gypsum board partition wall is made of magnesium board 100mm. When fixing the double-sided gypsum board, leave a gap of 10mm from the ground to prevent moisture. Other standards are the same as those for suspended ceilings.
7. The kitchen and bathroom aluminum gussets or PVC ceilings have no obvious warping after completion and have a neat appearance. The reserved position for electrical installation is reinforced to comply with the electrical installation dimensions.
Specifications for the carpentry construction process of door and window sleeves
1. The structural panels of the door and window sleeves are nailed to the frame with leftover materials from wardrobes or other aniseed materials, and then a square is used after nailing. After correction, use a hanging hammer to level the sides, use wooden squares to flatten them, and then fix them. The door cover must be 10-20mm above the ground level to prevent water absorption and mold.
When making the door and window cover line structure, nine-centimeter boards should be cut according to the width of the line. The width should be 5-6mm narrower than the line width, and fixed to the front of the door and window cover. The vertical deviation of the door cover is 2mm2. Door leaf: According to the height of the door opening, consider the thickness of the solid wood floor, composite floor or floor tiles and expansion joint beading; leave a good gap to ensure that it is 5-8mm above the ground after installation, and the door edge seam is 3mm. The door leaf thickness is guaranteed to be 42-46mm. If the gap under the door is beyond 5-8mm, the door edge should be sewn at 3mm. ① Flat door: Large core laths are used as keels, and 60mm strips are made of large core boards for the frame. Double-sided misaligned slots are provided, and the distance between slots is 150mm. The lateral clearance distance of the large core board is 200mm, and the interface gap does not exceed 1mm. High-quality second-layer three-centimeter board is pasted on both sides, and then mixed paint is applied on both sides without line closing. If it is a decorative type, two-sided three-centimeter board is pasted on both sides for decoration. panel. Reinforce the locking wood (300 height x 250 width) where the lock and hinge are installed. If it is found that large core boards are laid flat to make doors, the rework materials will be the responsibility of the carpentry team leader, and the foreman will be fined 30 yuan; if it is found that the door locks and door hinges are not tight, the foreman will be fined 30 yuan; if the door is found to be mixed with paint, the foreman will be fined 30 yuan. If the closing line is closed, the carpentry team leader will pay for the materials and the foreman will be fined 30 yuan.
②Glass door:
The large core board is used as the keel, two layers of large core boards are laid flat, two layers of three-centimeter boards are pressed on both sides, and the three plywood sheets on the surface are dug out to cover the glass position. , and then paint both sides without closing the lines (prime with nitrocellulose varnish and then apply putty). If it is found that the whole three-centimeter board is not hollowed out, the carpentry team leader will pay for the materials and the foreman will be fined 30 yuan; if the large core board is placed on its side, the foreman will be fined 30 yuan; if the foreman is found to be closed with lines, the foreman will be fined 30 yuan. Use a three-centimeter board to press the line on the front of the middle glass position to ensure that no gap can be seen on the front. If this method is not followed, the carpentry team leader will rework and the foreman will be fined 30 yuan. All lines are connected by male and female tenons.
③Double-sided concave and convex door: a. Mixed paint type: large core board on the base layer, with 12mm slats on the convex surface.
b. Varnish finish type: The base layer is a large core board, the convex surface is a nine-centimeter lath, and the surface of the bottom layer is veneer.
Some concave and convex doors depend on the design.
3. The method of pressing the door is the same as that of the cabinet door.
4. The door locks and hardware hinges should be drilled and installed before painting. They should be removed during painting. After painting, they can be finally installed and fixed. If door locks and hardware hinges are installed but not removed during painting, the foreman will be fined 30 yuan for each item.
5. When considering the overall effect of the design, wooden doors will be used for kitchen and bathroom doors. The width of the bathroom door leaf should not be less than 600mm. Considering the waterproof requirements, all should be treated with moisture-proof treatment (sometimes fireproof board veneer will be used) , the corresponding plastic lines are closed), the bottom plate of the door pocket, the decorative panel and the bottom of the lines are higher than the ground level, and are treated with moisture-proof treatment. If the work is not done according to the regulations, the foreman will be fined 30 yuan.
6. Window sash: The structure is three-layer nine-centimeter board slotted (300mm spacing) and evenly offset and pressed, such as the mixed paint type, the entire three-plywood board is hollowed out on both sides, no closing lines are needed, and both sides are painted . Such as the varnish finish type, double-sided decorative panels are cornered, and the corresponding flat lines are trimmed. If the work is not done according to the regulations, the foreman will be fined 30 yuan.
7. All facing materials must have no local color difference, the joints must be smooth and straight, and the corners must be square. The edges of the lines are also flat and smooth, there are no gaps in the corners of the lines, and there are no gaps in the seams between the lines and the decorative panels. If the veneer material is the wrong color for the top and bottom of the cabinet door, the team leader will pay for the materials and the foreman will be fined 30 yuan; if the color of the edge line is too different from the cabinet door color plate, the team leader will pay for the materials and the foreman will be fined 30 yuan; if the color of the cabinet lines is too different Differently, the team leader provided compensation materials and the foreman was fined 30 yuan.
Construction specifications and acceptance of special decorative parts of fine wood products
1. Pop up a large drawing of the background wall and other decorative parts on the wall according to the proportion of the drawing. Construction can only be carried out after design review.
2. The fixed point of the base layer is less than or equal to 35cm, firm horizontally and vertically, and the special-shaped products have smooth lines and sharp edges and corners. The vertical error is less than or equal to 1mm within 2000mm, and less than or equal to 1.5mm within 3000mm.
The flat surface shall be less than or equal to 1mm within 2000mm, and shall be less than or equal to 1.5mm within 3000mm.
The diagonal is less than or equal to 1mm within 1000mm, less than or equal to 1.5mm within 1500mm, less than or equal to 2mm within 2000mm, and less than or equal to 3mm within 3000mm.
Less than or equal to 1.5mm within 2000mm horizontally, and less than or equal to 2mm within 3000mm.
3. After the base layer of all fine wood products is completed, it can only be finished after quality inspection and signature.
4. Clear oil product finish, panel lines on the same decorative surface, the wood grain should be consistent without obvious color difference, the lines should be nailed with grain nails, and no insect holes or tree burrs are allowed on the lines. The decorative panel lines will be sealed with oil after entering the site (except for the black peach). The panels must be fixed with stainless steel nails, the nails are evenly spaced 50mm apart and arranged in a straight line horizontally and vertically. There must be no honeycomb nails, panels and panels, panels and lines are tightly and evenly connected, and the diagonals are tight and neat. There will be no obvious peeling, cracking or scratching after completion. All wood product joints must be glued.
5. For oil-mixed product finishes, the joints of the decorative panel and the joints of the base layer should be staggered and made into a V shape. 3mm wide outer splay processing to facilitate oil and putty filling.
6. The door warp is less than or equal to 2mm, and the diagonal is less than or equal to 2mm. The gap between the fan and the frame is 1-2mm on the clear throttle, 2-3mm on the left and right, and 6-8mm from the ground; 1-2mm on the mixed throttle, 3-4mm on the left and right, 6-8mm from the ground, and the top of the hinge is 200mm from the door end. , the distance between the lower opening and the lower end is 250mm.
7. The connection between cabinet products and the wall is tight and firm, and the hardware is firmly installed, neat and beautiful. Convenient location. The opening part can be opened flexibly. The opening part on the same facade will have a smooth appearance after closing, with consistent gaps and straight lines horizontally and vertically, without obvious height difference or misalignment.
8. The interior panels of the cabinet should be closed. After completion, they should be smooth, flat, without chipping, nail heads, or burrs. The joints should be tight and feel delicate, and there should be no dust or garbage in the dead corners. All cross-section cover panels are polished smooth.