What are the precautions for the renovation of old houses?

Carry out a closed water test on the bathroom.

Before decorating the second-hand house, the decoration workers should be invited to conduct a water-closing test on the bathroom to check how the waterproof treatment was done before. The method is: block the floor drain, put 5 cm of water in the bathroom, observe for 24 hours, and then go to the neighbor's house downstairs to check. If there is no water leakage, it proves that the waterproof treatment is done well; If there is water leakage, be sure to ask the property to be waterproof again. After waterproof treatment, wait until the ground is completely dry, then stick tiles, otherwise the ground will crack.

Water treatment and circuit transformation

In the renovation of old houses, the renovation of water and circuits is the most complicated. In the waterway reconstruction, people use the 50-year warranty rifeng pipe more. After the completion of all waterway reconstruction, the pipeline should be reasonable, closely connected, without leakage and illegal removal. In terms of circuit transformation, if the old house uses aluminum wires, it must be removed. There are many modern household appliances. According to the national standard, 2.5 mm copper wire must be used in the decoration, and the line for installing high-power electrical appliances such as air conditioners should be 4 mm square. When burying wires in the wall, PVC insulated pipes must be used.

Painting walls, priming is the key.

The wall of an old house will crack and peel, so when decorating the wall, we must pay attention to the treatment at the grassroots level. Generally, a good decoration company will coat the interface agent after leveling the wall. Interfacial agent has the function of moisture-proof and can also protect latex paint. Next, putty. The putty paste should be waterproof and not greasy, and the putty should be scraped three times. Finally, brush latex paint. If you want to paint the wall, you should paint it with primer accordingly.

Replace aluminum alloy or plastic steel doors and windows.

Wooden doors and windows, if they are not deformed and cracked, indicate that the material is very good. When decorating, you can stick a decorative board, and then spray paint to continue using it; If the wooden doors and windows have been deformed, they should be torn down and redone. Iron doors and windows, if the surface paint has fallen off or the main body is cracked, I suggest you remove it and replace it with aluminum alloy or plastic steel. Because doors and windows can play the role of sealing, sound insulation and heat insulation.

Add necessary switches and sockets.

Nowadays, more and more electrical appliances are used in the home, and the lighting equipment is becoming more and more colorful, so there are many places where switches and sockets need to be placed. Then, before the renovation, it is necessary to do a good job of wiring in advance and plan the places that need to be placed in the future in advance, and the switches and sockets reserved for 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. Hang up and put the switch in the living room where the owner can easily reach it.