Owner Mr. Li
Place of birth: Zhejiang
Age: 42 years old
Occupation: media industry
Family members: wife and daughter.
Hobbies: football, rock and roll, reading.
Favorite movie: Vicki Cristina Barcelona.
Motto: Be honest with others.
Qingjian eight villages in the community where the new house is located.
1 Room 2 is located on the 4th floor.
Monitoring time
20 12 may 19
Personnel involved in monitoring
Bian Xiao: It's me.
Supervisor: Li Shifu.
Photographer: Xiao Liu
First, it is best to replace the wires and water pipes in the decoration of second-hand houses.
Compared with the renovation of new houses, which lines should be renovated and which can be kept in the renovation of second-hand houses? Old houses before 1995 generally do not use copper core wires, but aluminum wires that are easy to age, so it is best to replace them after two renovations.
In addition, the water pipes in some old houses are made of galvanized materials. After years of use, this kind of metal tube is easy to rust and rot, forming heavy water and alkali, which affects the quality of drinking water. It is also suggested to replace them with PPR tubes. If it is really inconvenient to replace the pipeline with PPR pipe during the secondary decoration, it should also be equipped with corresponding drinking water filtering device.
Many galvanized pipes and valves used in old houses often leak and slide, which is not easy to turn off the water, unsightly and inconvenient to use. Better replace them all. During the renovation of water supply and drainage, the original pipes should be removed first, and the new water supply positions for kitchen and bathroom such as shower, washbasin, toilet, washing machine and vegetable basin should be determined. When replacing the pipeline, be sure to close the main valve to avoid water leakage.
Second, the second-hand housing hydropower design considerations
1, second-hand housing distribution system settings
Only the second-hand house with typical electricity meter 5 (20 A) is provided here (apartment type: two rooms, one living room, one kitchen and one bathroom). Fully open: 20-25A bipolar circuit breaker; Lighting: 10A single-pole circuit breaker; Ordinary socket in the living room: 16A keeps smooth with leakage; Kitchen socket: same as ordinary socket; Bathroom socket: Like ordinary socket, if there is no large electrical appliance in the bathroom, consider merging the circuit with the kitchen; Air conditioning socket: 16A single-pole circuit breaker 2. This configuration will be adjusted for different household appliances for reference only.
2. Second-hand houses should not use instant water heaters or super-power central air conditioners, ovens and other electrical appliances. If you need to buy related appliances, you need to explain the situation in the hydropower design to avoid the current overload seriously affecting the normal use.
3. The weak current (VoIP) transformation of second-hand houses is often subversive and needs to be rewired.
4, the second-hand housing waterway reconstruction, especially galvanized pipes, should be completely replaced with new pipes when designing; If it is necessary to temporarily stop water supply for an hour or so to replace the main valve, contact the relevant units for approval in advance to stagger the cooking peak period; Drainage pipes, especially iron pipes, should be changed into PVC pipes. On the one hand, the joint between metal pipe and PVC pipe should be handled well to prevent water leakage. In addition, the drainage pipeline is a non-pressure pipeline, so it is necessary to ensure smooth drainage.
Third, waterproof works must be redone.
In addition to wires and water pipes, waterproofing should also be a problem that must be paid attention to when decorating second-hand houses. New commercial housing also saves a lot of trouble in this respect. Usually, developers will conduct waterproof tests on houses before handing them over, and there is generally no problem with waterproofing. However, after years of use, the old house is likely to leak, and the home improvement company should do a waterproof test before renovation.
In addition, if you need to replace tiles, you should also pay special attention when prying tiles. Try to avoid cracking and waterproofing when prying tiles, which will cause problems. Therefore, if the second-hand house decoration has removed the tiles, it should be tested again later to ensure that there is no problem with waterproofing.
1, the kitchen should be waterproof:
There can't be much water on the kitchen floor. Waterproofing is mainly to ensure the position of the sink and the inclination of the ground. The key of the former is to make the interface waterproof. Cabinets made of plywood can be ventilated when exposed to water, but the combined cabinets will expand when exposed to water, resulting in the loss of fire protection boards on the back. Therefore, the seat of the cabinet must be made of 10 cm brick platform, which is the most effective waterproof.
2. Redo the waterproof treatment in the bathroom:
Second-hand housing bathrooms have been renovated for a long time, and most of them are not waterproof. In order to avoid water leakage in the future, please ask the decoration workers to carry out penetration test on the bathroom before decoration. If there is water seepage, it is necessary to highlight the water seepage point for key waterproof treatment. If there is no water leakage, it is best to carry out general waterproof treatment.
Check the materials used in water pipes: Some water pipe materials have been eliminated due to poor performance, so the owner must pay attention to the inspection of pipes when decorating the bathroom. If obsolete materials, such as galvanized pipes, are used, they must all be replaced with copper pipes, aluminum-plastic composite pipes or PPR pipes. After the completion of all waterway reconstruction, the pipeline should be reasonable, closely connected, not leaking, and not dismantled illegally.
3, metope, ground decoration pay attention to waterproof:
When decorating walls and floors, we must plan ahead to prevent the walls from infiltrating into neighbors' homes, especially the bathroom walls are waterproof, so we must do a good job.
4, balcony, doors and windows waterproof:
Because the second-hand houses are basically in the 1990s, the waterproof treatment work is relatively weak, so the waterproof work of balconies, doors and windows can not be ignored.
Fourth, the second-hand housing circuit transformation.
Compared with the renovation of new houses, which lines should be renovated and which can be kept in the renovation of second-hand houses? Old houses before 1995 generally do not use copper core wires, but aluminum wires that are easy to age, so it is best to replace them after two renovations.
High-voltage conversion requires additional sockets.
With more and more electrical appliances used at home and more and more colorful lighting equipment, there are many places where switches and sockets need to be added. Before the renovation of second-hand houses, it is best to plan ahead and do a good job of wiring during the renovation. The reserved switch sockets in old houses are generally not enough. Generally speaking, a room should be equipped with at least 3 sockets, the number of sockets in two bedrooms should be no less than 15, and the number of switches should be no less than 8. The switch height in the same room should be consistent. Generally, the switch is off the ground 1.4m, and the socket is off the ground 0.3m. The switch of the porch and the living room should be located where the owner can easily reach it.
In addition, attention should be paid to the distribution box when carrying out high-voltage transformation. The distribution settings of many old houses are old and the power ratio is unreasonable, which needs to be reset. The supervisor reminds the owner that it is best to set the air conditioner with single loop, lighting with single loop, ordinary socket with single loop, and kitchen and bathroom socket with single loop as required.
It is best to redistribute all the weak electricity.
In recent two years, the demand for weak current lines has increased. Telephone, TV, walkie-talkie, Internet, etc. Old houses are not considered, which requires owners to rewire when decorating second-hand houses. When laying network lines, it is first necessary to determine whether the owner will install ADSL in residential broadband or install it himself, and then determine the location of the router at home. In addition, when installing the intercom system, it is also necessary for electricians to operate according to the specifications to ensure clear sound or image.
Verb (abbreviation of verb) Suggestions on hydropower transformation of second-hand houses
1. Don't leave a wall in the wall: The wires and water pipes buried in the wall should be of good quality and meet the national standards. The wires should be sheathed, and the water pipes should be suspended from the ceiling.
Water pipes go underground: if there is a problem, it is easy to repair and the loss is more serious! It will also leak water downstairs, which will seriously affect the harmonious neighborhood relationship!
Water pipes enter the ceiling: in case of water leakage, it is easier to find. Because the water flows downwards, it can find the leaking part in time and remove the roof, which is more convenient to maintain and less costly!
Second, the ground is not vertical: people contact the ground for the longest time, but generally do not directly contact the wall, so pay attention to the quality when choosing the ground material, and the ground is recommended to be waterproof! You can choose brand products for the floor tiles in the bathroom. Moreover, you can choose the general brand of wall tiles, because there is only one side of the ground and four sides of the facade, which saves a lot of money. In addition, tiles, waist lines and top lines can be saved or not according to their own needs. Usually these are decorative.
Third, the switch does not save the socket: choose a good brand when choosing the switch, and the socket can choose a common brand. The reason is that the switch is frequently used and requires high quality. The switch is generally installed in a conspicuous position, which requires excellent decorative effect. However, the use frequency of sockets is generally very low, and the electric water heater will not be unplugged after being plugged in. In addition, the socket is generally installed in a hidden position, and the requirements for decoration are not high. This article also applies to the decoration of the whole family, because the number of switches in a whole house is generally only a few, and there are often dozens of sockets, which can greatly save money.