When heating comes in winter, how will the new home be affected?

The house was decorated in the first half of the year. I didn't see any problems before. After heating recently, cracks appeared on the wall of latex paint. Another problem is that the gap in the floor is getting bigger. I wonder if it has something to do with heating.

Supervising and answering questions

With the coming of winter, many places in the north have started heating one after another. In recent days, news has also been frequently screened. Heating caused smog, which seriously affected the air quality. So besides smog, is there any other influence of heating? Today, Bian Xiao will tell you about the influence of heating on the house!

First, the wall cracks-heating period in principle, no maintenance.

Phenomenon: Many people find that after one or two years of renovation, cracks of different lengths will appear on the wall, especially in winter. It seems inevitable to inquire. Is it true?/You don't say.

Reason: Cracks will appear in renovated houses all year round, especially in winter. This is because the contrast between dry and wet in the painted room is too strong, which is a normal phenomenon. Where there is an empty drum on the wall, or the wall near the top of the heating, the cracks will be concentrated. Under normal circumstances, the new house has a settlement period of 3 to 5 years. After the settlement period, the wall will not appear after repair.

Solution: During the heating period, these cracks and cracks need not be treated temporarily. After the heating season, under the condition of good ventilation, small cracks can be directly covered with paint. If it is a large area crack, you need to shovel off the paint, re-polish the putty, and then brush the latex paint.

Second, the ceramic tile cracks-pay attention to the reserved cracks when paving.

Phenomenon: Many owners have also encountered the cracking of ceramic tiles, especially those families with floor heating. What is this?

Reason: The tiles laid by floor heating are caused by local heating, thermal expansion and cold contraction. Now some tile manufacturers promote seamless paving. Once the tiles are empty, they often crack when the temperature changes suddenly.

Solution: The cracked ceramic tile can't be repaired, so it can be re-paved. Pay attention to the reserved gap and sand-lime ratio when paving. The thickness of pure cement on the back of brick should be moderate to increase the bonding degree. If the tiles fall off, it is necessary to check the hollowing rate of the tiles, remove the hollowed tiles and re-pave them. The external corner of the tile in Nanyang Terrace is also easy to crack or bulge, which can be solved by using professional aluminum alloy or plastic steel external corner strips when paving; For the Nanyang terrace tiles that have been constructed, the owner can prevent them from cracking by controlling the indoor temperature and humidity.

Third, the wall is dewy and moldy-do a good job of internal insulation and enhance the insulation capacity.

Phenomenon: after your home is heated, dew will appear in the corner of individual rooms, and even a wall can be wet in severe cases. What is the reason?

Reason: There are three main reasons for indoor wall condensation.

(1) First of all, the thermal insulation of the wall is poor, and the wall is thin and not dense. If insulation treatment is not done, or cracks appear in the insulation layer, the insulation capacity of the wall will also be reduced.

Secondly, the temperature difference between indoor and outdoor is large, especially after heating in winter, the indoor temperature is about 20 degrees Celsius and the outdoor temperature is below zero. When the temperature difference reaches 10 degrees Celsius, the solution: Generally speaking, the north wall of the room is dewed on the wall. If the wall is well insulated, it can avoid dewing and mildew. The owner can do internal thermal insulation to enhance the thermal insulation capacity of the wall, that is, add a layer of thermal insulation board on the original basis of the internal wall, then cover it with gypsum board, and finally scrape putty, polish and paint the gypsum board.

Fourth, wood deformation-the hardware hinge of the cupboard door can be adjusted.

Phenomenon: During the heating period, there are cracks at the joints between some gypsum board ceilings and profiles and walls, or cracks at the joints of gypsum boards, including some solid wood lines, which may also be deformed. Some people find that the cupboard door of their home is uneven, the cupboard door is skewed, and even the switch is inconvenient to use, which is caused by wood deformation.

Reason: Because wood products, walls and gypsum boards have different ratios of thermal expansion and cold contraction under thermal expansion, joints made of different materials (such as wooden furniture or gypsum board ceilings and walls) are normal. ) Cracks in the heating season. In dry winter, the moisture in wooden furniture will be lost, and the moisture content will be deformed when it is reduced. If the expansion joint between the ceiling and the wall is not well left, it is prone to cracks. Usually, a regular decoration company will have a five-year warranty for water and electricity projects and two years of cleaning materials. After the heating period, the decoration company will repair it for free. In this case, the owner does not have to worry too much.

Solution: The door deformation of wooden furniture is mainly caused by unreasonable design. For example, the cupboard door of a large wardrobe is too wide, exceeding 55 cm. Light steel keel frame should be used as much as possible when making gypsum board artistic modeling or ceiling. If the wood is deformed, it is necessary to remove or adjust the hardware hinge of the cupboard door to restore it to the normal open state. If the solid wood cracks, it is suggested that after the heating period, the joints should be filled with the same color grease or putty, then polished and repainted.

Fifth, the floor is shrinking-keep proper humidity indoors when heating.

Phenomenon: After entering the heating period, some floors will shrink and crack. The gap between the floors has become bigger, and the sundries are caught in the middle when cleaning, which is difficult to clean. There are signs of "bagging" on the floor around the heating.

Reason: After entering the heating period, with the increase of air dryness, the floor will mostly shrink more or less. However, some shrinkage cracks are small, and the cracks will become smaller and return to normal after humidity recovery. Some shrinkage joints are too large, which not only affects the appearance but also affects the use, and cannot be restored to normal state. This will happen if the environment is too dry for a long time or the moisture content of the floor itself is too high. In addition to these two reasons, the cracking of solid wood floor may also be that the geothermal temperature used is too high, which exceeds the bearing capacity of the floor.

Solution: If the floor gap is not big, it will return to normal when the humidity is restored. If the package is not lifted well and the gap is too big, the floor needs to be resurfaced or some manufacturers will use a joint patching agent to deal with it. Therefore, more maintenance should be done when heating, and many problems will be eliminated invisibly. Anyone who uses wooden floors, doors and furniture at home should pay attention to indoor moisturizing. To ensure the indoor humidity is between 40% and 60%, you can put more pots of water indoors, or put some green plants, aquariums and humidifiers to improve the indoor humidity. Waxing can also seal water in the board to prevent excessive evaporation of water, but the most cost-effective thing is to directly adjust the humidity of the room.

Sixth, the wallpaper is up-put water in the house or use a humidifier.

Phenomenon: There are still many people who report that the wallpaper at home is up after heating. Why?

Reason: When entering the heating period, the indoor temperature rises, the humidity decreases, the wallpaper shrinks, and the wallpaper will become warped. The wallpaper with up-to-standard quality is treated with sun protection and ultraviolet protection, even if the temperature behind the radiator is between 20 degrees Celsius and 30 degrees Celsius, it will not change. Even if the local temperature is too high, the color change is natural and unified. If the local edges and colors change, it means that the stability of wallpaper itself is poor.

Solution: Put a basin of water in the room or use a humidifier. In addition, try to avoid sudden temperature increase or decrease. When choosing wallpaper, try to choose wallpaper with good elasticity such as non-woven fabrics. When choosing wallpaper, we should also understand the functions of basement membrane (used for wall back cover), rubber powder and mucilage, which will directly affect the construction quality and later effect of wallpaper. Many problems in wallpaper construction are caused by unqualified wallpaper adhesive. If it is the quality problem of the wallpaper itself, it will be difficult to solve.

In principle, no maintenance will be carried out during the heating period, unless there are projects with potential safety hazards such as local cracks in the ceiling and tile falling off, otherwise the appearance will be seriously affected. There are two reasons: first, the finished product is difficult to protect, the ventilation condition is not good, and the smell is difficult to discharge, which is not conducive to human health; Second, some indoor changes during the heating period are continuous and irregular. Repair the problem when it is found, and it is likely to be repaired throughout the heating season. Once the problem is found, you can record it and inform the decoration company, and then come back for maintenance after the heating season, saving time and effort. If it is the first winter spent in a newly renovated room, remind everyone to open the window for ventilation, because harmful substances such as formaldehyde will accelerate volatilization after heating.