Skills of second-hand housing decoration and matters needing attention.

There are many kinds of old houses that want to be redecorated. Some houses have been occupied by themselves or their families, and some are second-hand houses. The old decoration has been used for some time. Whether it's your own old house or someone else's old house, don't "tear it down" when redecorating, because some materials have been used, but there are still many years before the product life, so such old materials can continue to be used. You can also take down the previous boards and make them into shelves, benches, chairs, etc. It is not a problem for ordinary carpenters to do these simple jobs. The key is your own creativity.

First of all, we must reform the circuit and increase the sockets.

Second-hand houses generally have simple circuit distribution, aging wires, illegal wiring and other phenomena, which can no longer meet the electricity demand of modern families. When decorating, they must be completely transformed and rewired. If the original lines are found to be aluminum wires, they must all be replaced with copper wires with a cross section of 2.5 square millimeters. For the lines of high-power electrical appliances such as air conditioners, lines with a cross section of 4 square millimeters should be set separately, and PVC insulated protective tubes must be used when burying the lines.

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In addition, the new national standard stipulates that the number of fixed sockets in residential buildings should not be less than 12, but there are still many existing sockets in second-hand houses that cannot meet this standard. If a large number of mobile sockets are used, when the current load increases, the mobile sockets will produce abnormal high temperature due to poor contact, laying a hidden danger for electric shock and electrical fire accidents.

Second, it is essential to replace the aging water pipe for water storage test.

The original waterway pipelines of second-hand houses often have many unreasonable layouts. When decorating, you must thoroughly check the original waterway to see if it is rusty and aging. If the obsolete galvanized pipes are used in the original pipelines, they must all be replaced with copper pipes, aluminum-plastic composite pipes or PP-R pipes during the transformation.

Before the renovation of second-hand houses, it is necessary to carry out 24-48 hours of water storage and leak detection experiments on bathrooms and kitchens to check how the original waterproof works are done. If there is no water leakage, it proves that the waterproof treatment is done well; If there is water leakage, be sure to waterproof it again. After waterproofing, when the ground is completely dry, tile will be laid for overall decoration. Moreover, when the toilet is changed from squatting to sitting, the waterproof treatment of the lower outlet of the toilet must be done well. When designing and decorating the top of the toilet, we should pay attention to the convenience of disassembly, which is conducive to future inspection and maintenance. At the same time, it should be noted that no dead ends can be left after construction.

Third, old doors and windows should be torn down and redone.

Aging of doors and windows is also a prominent problem of second-hand housing. But if the material is solid and you like its style, you can look brand-new by repainting it. But if the following problems occur, it must be dismantled and redone. The main problem is to see if there is peeling and deformation of wooden doors and windows. If so, it means that the characteristics of the wood itself have changed and must be replaced. In addition, the paint film on the surface of steel doors and windows falls off, and the main body is corroded or cracked, which is not only unsafe, but also difficult to restore to its original state. In order not to affect the use effect, it is recommended to tear it down and redo it.

Four, take cover engineering apart again strict inspection to eliminate hidden dangers.

At present, a large part of the quality problems in home decoration are caused by improper construction of "concealed works". What is a "concealed project"? In the process of construction technology sequence, after the completion of the previous step, the part that is covered by the next step and cannot be inspected is called "concealed work". Therefore, in the decoration of second-hand houses, special attention should be paid to "concealed works". For example, whether the pipes, lines and equipment of various facilities such as water supply, air conditioning and ventilation in the ceiling have been tested for tightness, electrical insulation and resistance, whether the connection is firm, whether the joint practices meet the requirements, and whether the flammable materials have been treated with fire prevention and flame retardant, etc., all belong to the scope of "concealed engineering" and cannot be inspected after the first installation.

The insiders suggest that it is a good opportunity to reopen these parts when the old houses are rebuilt. The owners must strictly check and dispose of the "hidden projects" left over from the past.

Five, demolition and decoration should also pay attention to three points.

1. When smashing wall bricks and floor tiles, avoid debris blocking the sewer.

2, waterproof handle, waterway with elbow as little as possible, to avoid poor or blocked waterway.

3. Use as few boards as possible. Most wood products contain formaldehyde, which affects health. In addition, wood will be deformed due to wet weather, and the manual cost of wood products is also high.

Six, walls, floors and ceilings must be transformed on three sides.

In the process of decoration, it is also very important to decorate the walls, floors and ceilings of second-hand houses. It is suggested that professionals be invited to conduct on-the-spot investigation on the house to see if there are obvious cracks, flatness, falling off and sand. If these situations exist, it is necessary to repair them, including removing oil stains from the wall surface, powdering the wall paint, and repairing the base, cracks and holes with cement mortar. In addition, after the repair, brush a primer to cover it, which will make the base firm and prevent the base from being

Seven, second-hand housing decoration should also be thoroughly disinfected and environmentally friendly.

An important step in the renovation of second-hand houses is thorough disinfection. It can be sprayed with 3% Lysol water, 1%-3% bleaching powder water or 3% peracetic acid solution. When closing doors and windows after spraying.