Hidden project reveals - late acceptance inspection

· Acceptance of woodworking The acceptance of woodworking is mainly reflected in:

(1) Whether the structure is straight. Whether horizontal or vertical, the correct carpentry practices should be straight.

(2) Is the corner accurate? The normal corners are all 90 degrees, except for special design factors.

(3) Whether the spelling is strict and accurate. The correct wooden pattern is to be seamless or to maintain a uniform distance.

(4) Whether the radian and roundness are smooth and sleek. In addition to a single, a number of the same shape to ensure consistency in the shape.

(5) Whether the cabinet door switch is normal. When the door is open, it should be light and no noise.

(6) There should be no gaps in the fixed wall of the cabinet.

(7) Whether or not the woodwork project is broken. It should ensure that the surface of the woodworking project is flat and there is no drum or breakage.

(8) Symmetrical carpentry items are symmetrical.

(9) Whether the decorative panel nails have been repaired. Of course, this is the painter's job, but because it exists in the woodworking project, it is mentioned here.

(10) Whether the connection of the ceiling corner line is smooth, whether there is any obvious unevenness or deformation.

(11) Whether the skirting line is straight and accurate on the ground.

(12) Whether the ceilings of toilets and kitchens, such as aluminum gussets and PVC gussets, are flat and have no deformation.

(13) Whether the cabinet door handle lock is installed correctly and normally open.

(14) Is the bedroom door and other doors open? When closed, the upper, left and right door joints should be tight, and the lower door gap should be moderate, generally 0.5 cm.

· Acceptance of paint (1) Whether the surface of the furniture oil is saturated or not. Make sure there are no blisters, no cracks, and that the paint thickness is uniform and consistent in color.

(2) Whether the surface of the furniture varnish has the same thickness, the paint surface is saturated, clean and free from particles.

(3) Whether the emulsion paint on the wall surface is flat and reflective, there is no emptying, blistering, cracking phenomenon.

(4) Paints for wood and plasterboard ceilings are generally latex paints and should have a smooth surface with no cracks at the plate joints.

(5) Whether the connection of the ceiling angle line is smooth, there is no obvious wrong and distortion.

(6) The wallpaper patchwork is inaccurate and does not tear. Patterned texture patches should be accurate and error-free.

(7) Whether there is no pollution or no stain on the wall.

· Acceptance by the mason (1) Whether the brick surface is flat or not inclined.

(2) Whether the seams on the brick surface are regular and uniform.

(3) Whether the toilets, balconies and kitchen floor tiles with floor drain have sufficient self-drainage inclination.

(4) Whether the brick surface is broken and collapsed.

(5) The tile orientation is correct and there is no reversal.

(6) Whether the tile and waistline position is correct, there is no biased position or the height is wrong.

· Acceptance of metal engineering (1) Whether the metal body structure is straight; if the window part, it is required to complete the closure such as the strip.

(2) Whether the metal window is flexible and has no obstruction.

(3) Whether the pipe joints of anti-theft nets, security doors, etc. have been polished, have a stable placement, and have not loosened.

(4) Whether the specifications and wall thickness meet the requirements.

(5) There is no leakage of rain between the window and the window.

· Acceptance of miscellaneous items (1) In accordance with the provisions of the contract item, whether or not the project items have been completed are checked item by item.

(2) Whether the lamps are all on.

(3) Whether the engineering waste has been completely cleared.

(4) Whether the sanitary fixtures and other installations are installed correctly, whether the toilets include water storage and flushing, and whether the basin drainage is normal.

(5) There is no blockage in the floor drain.

Acceptance of water supply and drainage pipelines 1. The arrangement of pipelines should meet the design requirements. The installation of pipelines should be fixed firmly without looseness. The faucet and valves should be installed smoothly, with flexible opening, smooth water outlet, and normal operation of the water meter. Accept visual inspection and feel the method of acceptance 2. Pipes and appliances, pipelines and piping joints should be no leakage. Using the method of passing water, visually and feel the method to check for leakage.

3, the installation of water pipes shall not be close to the power supply, and the spacing between the water pipes and gas pipes shall not be less than 50mm, and shall be inspected with a steel tape measure.

Electrical acceptance 1. After completion of the project, the owner shall be provided with the dimension drawing of the line going to the position, and shall be checked and accepted one by one according to the above requirements. The concealed electrical line shall be concealed after the acceptance of the owner.

2. The position of the live wire and the neutral wire facing the power socket is the right flame left-zero, and the socket with the grounding hole should be the upper position of the ground wire socket, and the grounding should be reliable. The switch socket should be firmly installed. Visual inspection and manual methods are used to check and special tools for circuit testing are used to verify that the positions of the live, neutral and ground wires on the socket meet the requirements.

Inlaying and Accepting Tiles Acceptance 1. Wall surface inlay should be firm, surface smooth and clean, no leaks are posted wrongly; gaps are evenly distributed around the perimeter, brick surface is not cracked, drop angles, lack of edges, etc., can be measured visually under natural light Method acceptance.

2, with a small hammer gently tap on the wall to see if there is emptying phenomenon.

Wood products acceptance closet and hanging cabinet shape, structure and installation location should meet the design requirements. The framework should use a hoe structure (except blockboard). The surface should be smooth, there should be no burrs and hammer marks, when using veneer material, it should be flat and firm, no degumming, no corners at the corners. Cabinet doors should be securely installed, with flexible switches, and parallel to the lower port and the lower port of the film. The hardware is fully installed, firm, and in the correct position. It is checked by visual inspection and feel.

Wooden floor inspection The surface of the wooden floor should be clean and free of stains, planed polished, no planer marks, planed burrs and burrs. The wooden grille should be firm, the spacing should meet the requirements, the laying should be firm, not loose, and the floor without noise when walking. Between the floor and the wall should be left between 8mm and 10mm expansion joints, visual inspection and feel the acceptance method.

Ceiling ceiling inspection installation should be solid, smooth surface, no pollution, cracks, missing edges, falling angle, hammer injury and other defects. Paste the fixed cover panel should not have delamination; cover panel should not have leakage, penetration, tilt angle and so on.

The position of the suspended ceiling should be accurate. All connecting parts must be tightened and clamped firmly. The main keel has no obvious bending, and there is no obvious misalignment at the sub keel junction. The use of wooden ceilings and wooden keels shall be fireproofed, and fireproofing shall be provided at the locations where the lamps and other objects are installed.

Decoration pollution control 1, from the source of governance. When buying building materials, pay attention to:

1 See if there is a test report, pay attention to check the test report detection time, the implementation of the standard, test data is lower than the national regulatory indicators, and the purchased material is a brand, is not the same batch. Also note that the test report is issued by a qualified test unit.

2 Let the operator specify the name of the product and the limit level of hazardous substances in the purchase contract and invoice.

3 When you use materials, leave some small samples. Once problems arise, you can use them as evidence to protect your legal rights.

4 to the formal building materials market to buy interior decoration materials.

5 After completing the renovation, select a regular testing unit that has the qualification of the national quality inspection department to carry out the testing and purification of the indoor environment.

2. Increasing indoor ventilation frequency is a key measure to reduce pollution. In the spring, summer and autumn seasons, families should always leave vents or open “small windows”. In the winter, they will open windows at least 10 minutes early, middle, and evening each day. Ventilation in the window for 10 minutes will reduce the ammonia concentration in the room by half. In addition to the ventilation of some harmful gases in the living room, an activated carbon air purifier must be installed.

3. Some plants can be planted in the house to eliminate the influence of harmful gases, and raising a pot of spider plants can absorb 86% of the indoor formaldehyde within 24 hours. A pot of aloe vera can absorb 90% of the formaldehyde contained in 1 cubic meter of air under 24-hour lighting conditions. Cactus, Sansevieria, Chrysanthemum, etc. can absorb formaldehyde. Ivy and cycad can absorb benzene. Evergreen and daisies absorb trichloroethylene. Monstera, tiger-tailed orchid, and one-leaf orchid are leafy foliage plants. They can absorb more than 80% of indoor harmful gases. The scramble for flowers and plants not only purifies the indoor environment, but also brings infinite vitality and beauty to the interior, which can serve two purposes.

1, from the source of governance. When buying building materials, pay attention to:

1 See if there is a test report, pay attention to check the test report detection time, the implementation of the standard, test data is lower than the national regulatory indicators, and the purchased material is a brand, is not the same batch. Also note that the test report is issued by a qualified test unit.

2 Let the operator specify the name of the product and the limit level of hazardous substances in the purchase contract and invoice.

3 When you use materials, leave some small samples. Once problems arise, you can use them as evidence to protect your legal rights.

4 to the formal building materials market to buy interior decoration materials.

5 After completing the renovation, select a regular testing unit that has the qualification of the national quality inspection department to carry out the testing and purification of the indoor environment.

2. Increasing indoor ventilation frequency is a key measure to reduce pollution. In the spring, summer and autumn seasons, families should always leave vents or open “small windows”. In the winter, they will open windows at least 10 minutes early, middle, and evening each day. Ventilation in the window for 10 minutes will reduce the ammonia concentration in the room by half. In addition to the ventilation of some harmful gases in the living room, an activated carbon air purifier must be installed.

3. Some plants can be planted in the house to eliminate the influence of harmful gases, and raising a pot of spider plants can absorb 86% of the indoor formaldehyde within 24 hours. A pot of aloe vera can absorb 90% of the formaldehyde contained in 1 cubic meter of air under 24-hour lighting conditions. Cactus, Sansevieria, Chrysanthemum, etc. can absorb formaldehyde. Ivy and cycad can absorb benzene. Evergreen and daisies absorb trichloroethylene. Monstera, tiger-tailed orchid, and one-leaf orchid are leafy foliage plants. They can absorb more than 80% of indoor harmful gases. The scramble for flowers and plants not only purifies the indoor environment, but also brings infinite vitality and beauty to the interior, which can serve two purposes.

What are the main indoor pollutants?

The general indoor environment pollutants can be roughly divided into the following categories:

1) Chemical contaminants: mainly include inorganic contaminants such as ammonia, nitrogen oxides, oxides, carbon oxides, and formaldehyde, benzene, and xylene released or discharged from decoration materials, cosmetics, paints, and kitchens. Organic pollutants, etc.

2) Radioactive pollution: mainly from the helium gas and its decaying daughter released from the concrete, as well as the gamma rays released from stone products such as marble countertops, sanitary ware, and floors;

3) Physical pollution: Including the noise generated by outdoor vehicles, insufficient or excessive lighting of indoor lighting, related problems caused by excessively high or low temperature and humidity, and asbestos contamination;

4) Biological contamination: Mainly due to the fact that indoor cleaning work is not done well and in the case of relatively high humidity and poor ventilation, some corners that are not frequently visited produce certain fungi and other microorganisms under appropriate temperature and humidity. If the clothes are not dried and placed in the clothes room, the evaporated water can promote the growth of microorganisms in poor ventilation. In addition, the pollen allergy caused by some flowers in the room can also be biological contamination.

5) Atmospheric particulate pollution: Particles produced during outdoor cooking or cooking in the kitchen. They are often noticed by humans due to the adsorption of chemicals that can cause cancer in humans, and some dander produced during the process of dressing or itching. It can also be attributed to this class.

According to a survey by the US Environmental Protection Corps, indoor air pollution is often 2-3 times that of outdoor air pollution, and in some cases it can even be 100 times. Experts remind people that about 300 kinds of pollutants can be detected indoors, and about 68% of human diseases are related to indoor air pollution.

The main sources of indoor pollution: some daily necessities containing toxic substances and various building decoration materials and dust.

1, benzene and aromatic hydrocarbons. Benzene inhibits the hematopoietic function of the human body, using the right red blood cells, white blood cells and thrombocytopenia, it is found in materials such as gasoline, plastics, synthetic rubber fibers and certain household products, and it is also the 4,000 chemicals that exist in the smoke that a smoker breathes. One of them; toxic aromatics exist in some liquid paints. Due to the high volatility of liquid paints, toxicity can generally be reduced after toxic aromatics are volatilized after 1-2 months.

2, tetrachloroethylene, dry cleaning agents derived from dry cleaning clothes.

3, p-dichlorobenzene, can cause cancer in animals. Its main sources of pollution are insect repellents, toilet disinfectants and deodorants.

4. Chlorine, which is commonly used in the treatment of water sources, will form a chlorine letter or *** when evaporating. It may induce cancer at high concentrations. Its main source of pollution is when bathing, washing or boiling water. Activated carbon filtered water can be used to improve ventilation in bathrooms and laundry.

5, carbon monoxide inhalation can make the human blood lose oxygen carrying function, especially harmful to heart disease patients.

6, formaldehyde. Used to synthesize various binders such as urea formaldehyde, melamine formaldehyde, amine formaldehyde resin, phenolic resin, etc., and some decorative materials using these adhesives release formaldehyde. Adhesives such as particleboard, fiberboard, plywood, furniture, walls, floors, decorative adhesives, some chemical fiber carpets, paints, and prefabricated panels using urea-formaldehyde foam as insulation material release formaldehyde.

Formaldehyde has a strong pungent odor. According to medical experts, the stimulatory toxicity of formaldehyde is mainly manifested in nervous system and respiratory symptoms such as headaches, dizziness, dry throat, and coughing. According to related reports, acute exposure to high concentrations of formaldehyde can cause acute depression. Usually people come in contact with low concentrations of formaldehyde, which causes less severe symptoms, but the essence is the same.

7. Dust.

Although urban air is polluted by industrial pollution, its quality is still better than that of indoor air. Therefore, the simplest and most effective way to improve the indoor air is to improve indoor ventilation, constantly replenish the fresh air in the room, and replace the original low quality indoors. air.

In addition to ventilation, some flowers can also be used to absorb harmful substances. For example, ivy and cycad can absorb benzene. Evergreen daisies can absorb trichloroethylene. Chlorophytum, aloe, and Sansevieria can absorb formaldehyde. Can beautify the home, is the best policy.

12 major manifestations of damage caused by indoor environmental pollution,

1. When you get up early in the morning, you feel bored, nauseous, and even dizzy.

2. Family members are often susceptible to colds.

3. Although it does not smoke, it rarely touches the smoking environment, but often feels uncomfortable in the throat, has foreign body sensation, and has poor breathing;

4, children at home often cough, sneezing, decreased immunity, the newly renovated house children do not want to go home;

5, family members often have skin allergies and other problems, but also grouped;

6. There is a disease in the family, and after leaving this environment, the symptoms have changed significantly and improved;

7. Newly-married couples are not pregnant for a long time and cannot find out the reasons;

8. Pregnant women find fetal malformations under normal pregnancy conditions;

9. After the new move or new decoration, the indoor plants are not easy to survive, the leaves are easy to yellow and wither, especially some plants with the strongest vitality are also difficult to grow normally;

10. After the new move, the domestic pet cats, dogs and even tropical fish died inexplicably, and this is also true of neighbors.

11, there is a feeling of a sore throat at work, dry respiratory tract, long time dizziness, fatigue, after work there will be no problem. And other staff in the same building also have this feeling;

12. Newly renovated homes and office buildings or newly purchased homes have irritating odors such as harshness, pungent odors, etc., and they remain odorless for more than one year.

All these phenomena are caused by the unqualified indoor air quality. More than 80% of people's lives are spent indoors. The quality of indoor air quality is closely related to our health. If you and your family have these symptoms, please take measures as soon as possible to carry out indoor environmental testing and treatment, as soon as possible to eliminate the "time **" buried in your side.

The root cause of indoor air pollution in children's rooms <696> bytes The root causes of indoor air pollution in children's rooms are:

The toxic and harmful gases produced in the interior construction and decoration, such as formaldehyde, benzene, ammonia, etc.;

Decoration and furnishings in children's rooms, such as carpets, bed blankets and various decorations;

Pollution caused by children's various toys, dust mites in plush toys, lead contamination in paint on wooden toys, volatile substances in plastic toys, etc.;

Children, such as pet cats and dogs kept at home, are willing to play with them and live together for a long time, which can easily cause biological contaminations such as bacteria, fungi, and viruses;

In kindergartens and schools, children in classrooms are too dense. Each child has too little space and can easily pollute homes with indoor air.

According to the relevant national regulations, indoor environment indicators in children's rooms:

Carbon dioxide is less than 0.1%. Carbon dioxide is a comprehensive indirect indicator of indoor air quality. If the concentration is high, children may feel nauseous and headaches.

Carbon monoxide is less than 5 mg/m3. Carbon monoxide is the most common toxic gas in indoor air, and it can easily damage children's nerve cells, which is extremely harmful to children's growth.

The total number of bacteria is less than 10/m3. Children are in the stage of growth and development, and the immunity is relatively low. We must do a good job of sterilization and disinfection of the room;

Temperature. Children's ability to regulate body temperature is poor, summer should be controlled below 28 °C, winter indoor temperature should be above 18 °C, but should pay attention to the impact of air conditioning on children's body, should be reasonable use;

The relative humidity should be between 30 and 70%. If the humidity is too low, children's respiratory tract may be easily damaged. If the humidity is too high, evaporation of sweat may be unfavorable.

The gas flow should not be greater than 0.3m/s while ensuring ventilation and ventilation; if it is too large, it will make the child feel cold.

Lighting lighting. When children are writing, the light in the room must be evenly distributed without any strong glare.

Noise has a great impact on children’s mental activity. On the one hand, it distracts children from their attention in learning activities. On the other hand, prolonged exposure to noise can cause children’s psychological stress and affect their physical and mental health. Children's room noise should be controlled below 50 decibels.

Bathroom Decoration Notice The bathroom looks like an inconspicuous place, but it is very important in home decoration. The following points are for your reference:

1, the ground floor of the toilet should pay attention to waterproof, non-slip. The floor decoration material of the bathroom is preferably made of anti-slip rotation with a raised pattern. This floor tile not only has good waterproof performance, but also does not become slippery even in the case of water.

2. The wall of the bathroom wall should also be waterproof and moisture-proof, so the wall tiles are generally selected, and the wall tiles matching the floor tiles should be selected so that the style of bathroom decoration is unified.

3, the top of the bathroom ceiling moisture, cover the most important. It is best to use a PVC buckle plate with good waterproof performance as ceiling. This kind of buckle plate can be installed on the keel and can also play the role of concealing the pipeline. It is also possible to use glass and translucent panels for ceilings. In addition, waterproof paint can also be used to brush the top.

4, sanitary ware and some supporting facilities should be fully prepared. Sanitary ware mainly includes bathtubs or showers, wash basins, and toilets. The supporting facilities include vanity mirrors, towel racks, soap jars, and bathtub handles. If you have an elderly person or a handicapped person at home, it is best to press the three handrails next to the toilet.

5, bathroom toiletries and cosmetics in the cabinet are small in size but the quantity is quite a lot. It's best to make a small cupboard to put them on the shelf. However, considering the wetness of the bathroom, the use of wood products should be minimized. If wood products must be used, fireproof panels or materials with strong water resistance should also be used.

6, the door to the bathroom door to choose waterproof, rust-proof, fireproof, anti-corrosion material, it is best not to wood, to prevent future moisture deformation. The bathroom should have a threshold to prevent water from overflowing.

7, electrical bathroom is relatively humid, so be careful when installing lights, wires. The switch preferably has a safety device, and the socket is preferably made with a waterproof cover. Because the bathroom's wires should not be exposed, pay attention to where you need to leave the sockets and connectors. Bathroom commonly used appliances are water heaters, heaters, ceiling lights, washing machines. Need to be reminded that if you need to make-up in the bathroom, do not forget to set a lamp above the vanity mirror, on the edge of the best reserved for a socket to charge the razor or use a hair dryer.

Precautions:

1. The position of the opening of the air conditioner, try not to place on the person.

2. Sill artificial marble countertops 3. The bedroom/living room uses dual switches to confirm the location of all the switches 4. The location, number, and paralleling of the water heaters.

5. The tile corners are polished 45 degrees 6. The hot water pipe reserves space for expansion 7. The aluminum pinch plate should not be too high in price, but the keel needs to be carefully confirmed.

8. Put a socket on the balcony 9. The best way to wash the dishes is to light, and it is best at the side of the window, otherwise the vegetables will be troublesome.

10. Several options for refrigerator/washer plug/water. 11. Do not use small spotlights.

12. Do not do the sliding door hidden in the wall. 13. Lamps should not be too complicated. Afterwards, they should not use light strips.

14. The pipeline map needs to be marked in detail. Do not conflict with future decorations to prevent installation and breakdown.

15. Sterilize the cabinet/drawer. Note if there is a line and do not close it.

16. Cabinets: Look at the rear panel, hardware, cabinet installation method, whether the table is one.

1, the living room living area is smaller should not lay dark ground, making people feel narrow and depressed. Wall power and antenna, phone plug, do not forget to change the line shift, and equipment matching. Entering the front door is the living room's home. Consider where the shoes are placed. The upper half of the room should be lighter than the lower half to avoid top-heavy. In particular, do not use more than three colors in a space at the same time. This will not only damage the beautification effect but also affect the life of the house (life cycle).

2. The bed in the bedroom of the bedroom should not face the sunny window, and the sun will affect the rest of the sleep. The switch plug should be shifted to the top of the bed, within easy reach of the place, avoiding the lamp and going to bed and sleeping. The windows facing the street should be soundproofed, and the heating hoods should not be used for death, affecting the distribution of heat and subsequent maintenance. The best wardrobe near the mirror. The child's bedroom light source should not be too bright nor too dark to affect the child's vision.

3. The suitable range of lighting and living space is as follows:

Brightness (W) Applicable area 40 about 9 square meters 60-80 14-25 square meters 100-150 25-40 square meters above 200 above 50 square meters 4, kitchen, bathroom floor tiles should be non-slip; the size of wall tiles and floor tiles should not be too different, Affect the laying effect. For ceilings, materials should be waterproof and moisture resistant. Waterproofing should be done before laying the ground. The power cord should be embedded and insulated. Bathroom cabinets, heating hoods, and kitchen cabinets should not be used as wooden cabinets that are afraid of water.