Roof construction process

Suspended ceiling decoration process
(A) the structure of a suspended ceiling
Suspended roof generally consists of three parts: boom, skeleton, surface layer.

1. Boom
(1) the role of boom: to withstand the ceiling layer and the backbone of the load, and this tea to the roof of the load-bearing structure.
(2) the material of the boom: most of the use of steel.
2. skeleton
The role of the skeleton: to withstand the load of the ceiling layer, and the load through the boom to the roof load bearing structure. Skeleton of the material: a wooden skeleton, light steel dragon skeleton, aluminum dragon skeleton and so on. The structure of the skeleton consists of the main keel, the sub keel and the joist, the second grid, and the small frame. Light steel keel and aluminum alloy keel in the T-type, U-type, LT-type and all kinds of special keel and so on. The following are the same as the "
3. Surface layer
The role of the surface layer: decorative interior space, as well as sound absorption, reflection and other functions. Surface layer of materials: paper gypsum board, fiberboard, plywood, calcium-plastic plate, mineral wool sound-absorbing, aluminum and other metal plate, PVC plastic plate. The form of the surface layer: bar, rectangular and so on.

The following are the same as the "
(2) Suspended roof construction technology
(1) light steel keel, aluminum keel ceiling:
Bracket → Install boom → Install the dragon frame → Install the panel.
(2) PVC plastic plate ceiling:
Bend → Install Main Girder → Install Wooden Bracket → Install Plastic Plate.
(3) construction points
First of all, should be in the wall pop-up line, fixed at both ends of the wall pressure lines, with cement nails and wall fixed firmly. According to the design of the standard, along the wall around the bomb line, as the ceiling installation of the standard line, the level of tolerance ± 5 mm. When the algae roof, should be fixed under the pressure bar, yin and yang angle with pressure bar connection. Note that the exit of the lighting line is reserved. When the ceiling area is large, the keel should be laid in the middle. Hanging point spacing should be re-inspection, generally not on the ceiling of 1200-1500 mm, the ceiling of 900-1200 mm. Panel installation should be installed before the keel and panel panels to check, meet the requirements and then install. The following are the same as the "
Grille ceiling construction process
1, the role of wood grille ceiling
Wooden grille ceiling is home decoration corridor, entrance, restaurant and have a large roof and other space often used method.

2, wooden grid ceiling construction technology
Accurate measurement → keel finishing → surface planing → open half slot lap → flame retardant brushing → oil brushing → installation frosted glass
3, construction points
The construction of the wooden grille skeleton should be accurately measured in the ceiling size. Keel should be finished, the surface planing, the interface at the open rod, horizontal, vertical keel junction should be open half-slot lap, and should be flame retardant brushing treatment. The following are the same as the "
Construction Process of Alpine Roof Ceiling
1, the role of algae roof
In the home decoration, the general use of wooden keel to do skeleton, with gypsum board or wood to do the panel, paint or wallpaper to do finishes finish algae-type ceiling. This kind of ceiling can overcome the contradiction between the room low and the top decoration, to facilitate the construction site, improve the decoration grade, reduce the project cost, to achieve the purpose of the top decoration, so the application is more extensive. The following are the same as the "

2, construction points
(1) wood keel installation requirements
① Material: wood requirements to ensure that there is no split, corrosion, insect frog, dead and other quality defects; specifications for the length of 30-40 mm, 40-50 mm wide, water content of less than 10%. ② design: the use of algae-type ceiling, if the height difference is greater than 300 mm, should be used ladder grading treatment. Keel structure must be strong, large keel spacing of not more than 500 mm. Keel fixation must be firm, keel skeleton in the top, the walls must have fixed pieces. ③ construction: ceiling elevation level of not more than 5 mm. Wood keel bottom should be planing flat, cross-sectional thickness of the same, and should be flame retardant treatment.
(2) wooden keel installation specifications:
First should be pop-up line, shape position line, hanging point layout line and lamp installation position line. There are two ways to fix the hanging point at the top of the keel: one is to fix the angle iron or flat iron directly to the top with a diameter of 5 mm or more. The other is at the top of the eye, with expansion bolts fixed iron or wooden side to do hanging point. Should ensure that the hanging point is firm and safe. After the installation of the dragon skeleton, should be carried out quality inspection and acceptance, can be decorated with decorative panels.

(3) the installation of decorative panels
The main types of ceiling panels are gypsum board and wood board two categories, are required flat surface, no bump, no broken, neat corner. The installation method of the decorative panel is mainly composed of circular nail fixation and wood screw fixing method. The circular nail fixation method is mainly used for wood panel installation and construction speed. The screw fixation method is mainly used for gypsum board panel to improve Plate piercing ability. Installation of decorative panels should be fully consistent with the wall, there are decorative corners of the gap can be placed between the decorative panels should be tight. Ceiling should be installed in the decorative panel when the mouth set aside. Decorative panels installed, the need for finishes finishing operations, commonly used materials for the latex paint and wallpaper, the construction method with the wall construction.

Mixed oil painting construction acceptance

Code for construction of wood surface mixed oil

Mixed oil brushing the surface of the wood is often used in home decoration one of the decorative means. Mixed oil refers to the use of blending paint, enamel paint and other paint, the surface of the wood brushing decoration, so that the surface of the instrument to lose the original color and pattern, especially for the poor species, the material finishes are flawed but does not affect Use the case of choice, you can achieve a more perfect decoration effect. In the modern style of decoration, because the mixed oil can change the color of wood, the color is more abundant, but also save material costs, by the young people more preference, the application is very broad, gradually become home decoration in the finishes An important part of.

The surface of the wood surface oil brushing the standard procedures: first clean the surface of the grass-roots dust, repair the grass-roots level, with sanding paper tied, knots at the paint at the paint. And then beat the end of putty, painted dry oil. The first pass over the putty, polished after brushing the bottom of the paint, the underlying paint dry and hard, brushing the surface layer, the surface layer after the repair of putty to repair, dry polished after wiping, brushing the second coating, Polished, to achieve the desired effect after polishing waxing.
Mixed oil brushing is a process, highly technical construction projects, the quality difference is very large, must be strictly in accordance with the norms of procedures to operate in order to ensure quality.
Mixed oil brushing the surface of the wood should pay special attention to the following aspects:
(L) grass-roots treatment, in addition to clean up the grass-roots debris, but also should be part of the putty embedded, repair the grass-roots flatness, the surface of the artillery holes, knots, twist and other defects, the application of putty leveling , And then full of scraping putty, playing sandpaper, playing sandpaper should be polished along the wood grain.

(2) in the brush before the surface layer, the application of paint (shellac paint) on the larger color and lime of the knives at the back cover. In order to improve the bonding capacity of the grassroots and the surface layer, should be in the grass-roots coating of dry oil or clear, brushing dry oil to all parts of the uniform brushing, can not leak brush, commonly known as brush base, it is to ensure the quality of brushing Very critical role.
(3) After the oil is dry, full scratch the first pass putty, putty into a paste, with the ratio of paint: turpentine: talc = 6: 4: amount (weight ratio). After the first pass putty dry to hand sandpaper polished, and then fill the high strength putty, high strength putty ratio for the varnish: gypsum powder: water = 3: 6: 1 (weight ratio), putty to pick silk does not prevail.
(4) brushing the surface paint, you should first use fine sandpaper polished, if found defective putty replenishment and then use fine sandpaper polished. The last time before the paint brushing, coping with the previous film with water sandpaper for grinding, so that the surface smooth and smooth after brushing. If the instrument (doors and windows) have exposed outdoor parts, should use the weather resistance and water resistance better external paint brushing, but pay attention to match with the previous paint.

3, mixed oil brushing acceptance
The type of paint used should meet the design requirements, brush the same color, brushless lines traces, do not allow peeling, leakage brush, rust, whitening, through the end, falling, wrinkled skin, wrapped edge and uneven color Defects, drawing line inspection line, color line straight, the error is less than 1 mm, for touch paint smooth, no block feel, wood adjacent to the hardware, glass and walls clean, no oil trace.
4, mixed oil brushing common quality problems and processing talent
(1) top paint brushing: top paint brushing common quality problems are through the end, anti-alkali, cracking and coating is not smooth and so on.
① through the bottom: the main reason is the improper handling of the grass and the paint was too thin, hiding power caused by inadequate control of the grass-roots treatment should be oil, rust and other clean, the construction of paint appropriate consistency, , And can be increased by increasing the number of brushing.
② anti-alkali: mainly due to the grass-roots wet due to the construction must be the top of the grass-roots drying before brushing. If anti-alkali, should be rework repair, when the grass-roots dry, and then putty putty, brushing operations.

③ cracking: is putty caused by shrinkage. The main reason is that the construction of the pre-putty is not dry through the scraping again putty, the second time putty is not dry on the brush paint, causing the back of the dry layer of putty crack. Construction should wait until the last putty dry and then scraped again, the thickness of each putty should not exceed 2 mm. Rework repair should be the first crack at the scraping net, and then putty scraping, putty dry and then painted finish.
④ the top is not smooth: the main reason in addition to substandard treatment, the paint is too thick and thick coating is also an important reason. In addition to grass-roots treatment must be smooth, clean, the construction of the paint should be appropriate consistency, every time the paint brush to be thin, to prevent the accumulation. Repair can be used when the sandpaper grinding sand leveling.
(2) wood surface mixed with oil brushing: wood surface brushing mixed with common quality defects, including flow, brush, bleed, blistering, wrinkles and rough coating, etc., which fall, brush, wrinkles and coating Film rough causes and treatment methods and varnish brushing is basically the same, can refer to the oil part of the construction method to be addressed. Here focus on solving the problem of foaming and bleaching.

① blistering: is due to high moisture content of wood or wood itself caused by oil, especially the big core board directly brushing mixed with oil is easy to appear. Poor, the construction environment temperature is too high, the wood surface dry and the inner layer is not dry to brush the next oil is also an important reason. Construction to ensure that the wood is dry and completely remove the oil in the wood, the operation to wait for a layer of coating completely dry and then brush the next time. Repair should be the eradication of bubbles, clean the bottom, to be dry after brushing 107 glue, scrapets putty, until the finish after brushing the surface layer.
② bleeding: mainly due to the wood in the dye, lime penetration or the underlying color than the surface layer caused by deep. Control method is in the construction, the surface color should be deeper than the bottom layer, wood knots and other dyes, lime high parts, must be sealed with paint pieces. If bleeding occurs, repair the paint should be first, and then brushing the finish again.
5, mixed oil brushing the estimated date
Mixed oil brushing is a high-tech construction projects, the larger cost of working hours, the general three rooms 1 two rooms decoration all wood mixed oil brushing need l0 days or so, of which the grass-roots treatment for about 2 days, mixed with three times Around which there is a process waiting time. According to the quality requirements of the paint, the number of wood furniture, the use of dry materials! Different period, the duration will change. Mixed with oil, can not work with other types of dust.