Why does a damp roof get moldy, and what is the cause of moldy ceiling on the top floor

If your house is a bungalow, the damp roof should be damaged by the waterproof layer, and it should be repaired in time; If it is a building, it should be a broken kitchen or toilet pipe upstairs, resulting in dampness, if it is humid for a long time, the temperature in the house is suitable, it will promote the production of mold, in our daily life, mold is one of the indoor pollution, food decay and deterioration will produce mold. If the water seeps down from it is not clean, it will also carry mold, which will cause mold to grow over time. Moldy for a long time is harmful to people's health, so please pay attention to removal.

You can first find the property or upstairs occupant to remove the source, then remove the moldy paint from the walls of the house, and repaint it several times.

1.The joint between the window and the outdoor cement causes rainwater to enter the room from the crack, causing the dampness around the window, and the mildew and hair grow over time.

2.The decoration has led to mold on the walls.

Interior decoration materials contain a certain nutrient base, such as: Dabai contains a certain amount of cellulose, and the sugar in cellulose is easy to produce mold at a certain temperature and humidity; Decoration before waiting for the wall to dry and enclose moisture in the wall will also cause the wall to become moldy and hairy; Inferior interior decoration materials are used, which are prone to mold under a certain temperature and humidity.

3. The quality of the exterior wall leads to mold on the wall.

The exterior wall brick inlay is not solid, and the brick joints are not filled or the joints are filled; The mortar of the outer filling wall is not full, and there are trachoma and gaps, forming a cold and hot bridge; The junction of the wall and the beam and column is not densely filled, resulting in cracks; When the doors and windows are installed, the foam filling is not dense and there are gaps. There are also cracks in the exterior wall, and local water seepage is also the cause of damp hair growth on the interior wall.

4. Waterways cause mold on the walls.

When the living room is renovated, part of the waterway is improved to the inner wall, and the water pipe embedded in the wall has a leakage place, resulting in damp and moldy walls. This is the reason why the walls near the bathroom are often moldy.

There is a problem with the structural quality of the roof, which inevitably has the phenomenon of dampness, you can find a property after buying a house, and you can only decorate it yourself, and there is a situation, that is, the empty climate with residual humidity in the house will also have such a situation, which is not good for your housework habits.

1. The waterproofing of the ground of the people on the upper floor is not done; 2. Or the house you are in is shaded all year round; On the 3rd floor is an open bathhouse.

There are three necessary prerequisites for moldy ceilings: the right temperature, humidity above 80, and mold spores. Eliminating any of the premises will not become moldy.

Look at the temperature first, the temperature that the human body feels comfortable is also the temperature at which mold grows, there is no way, it can't be changed; Look at the mold spores, they are very small, fluttering in the wind, doors and windows can't stop it, they can easily enter your room, and they can't get rid of it; Finally, there is the humidity, which he needs above 80, which is exactly the humidity that we hate, and there are now many ways to reduce the humidity without causing us discomfort. When the sun is shining, open the windows and let in a lot of air. On a rainy and wet day, close the window and turn on the air conditioner and turn it to dehumidification mode.

In summer, you don't have to worry too much, as long as the air conditioner is turned on, the humidity will naturally drop, and sometimes you need to add some water to volatilize. The door of the wardrobe should be closed like a refrigerator, and then put some desiccant. It is also important to check the ceiling, walls and floor of the house for water seepage, and think about eliminating it.

With these measures in place, you can say goodbye to mold. There is also the use of professional wall mold remover, which can completely kill wall mold in a short time, and at the same time, it can also change the wall structure of the corresponding part to prevent the growth of wall mold.

If there is a problem with the waterproofing of the roof, it is recommended to find a professional waterproofing personnel to solve it thoroughly.

Hope it helps.

Summary. There are two possibilities, one is that in winter, the outside is cold, the temperature inside is high, due to the temperature difference, the water vapor is easy to condense on the wall, so it is moldy, and the other is not the external wall leakage! The first one, if you want to add an insulation layer, it is estimated that it is not easy to solve, but you can open some window cracks, which can reduce this phenomenon, of course, provided that you do not freeze people.

My family lives on the top floor in winter, the roof will return to moisture and mold, before doing waterproof useless, in winter it is still moldy, and there is no rain leakage in the summer heavy rain?

There are two possibilities, one is the permeable material in winter, the outside is cold, the inside temperature shouts high impulse, due to the temperature difference, the water vapor is easy to condense on the wall, so it is moldy, and the other is not the external wall leakage! The first one, if you want to add an insulation layer, it is estimated that it is not easy to solve, but you can open some window cracks, which can reduce this phenomenon, of course, provided that you do not freeze people.

It's not a leak in the exterior wall.

How can you help me.

As long as you put some anti-mildew agent in the wall paint and putty powder, you can solve the problem.

Hello dear<> The roof of the room on the top floor is moldy The reasons are as follows: 1. The top floor is waterproof and leaking, resulting in damp and hairy ceilings. Or the original waterproof layer is damaged during the decoration process, leaking water from the top layer, causing black spots and mildew on the bottom layer. 2. If there is mold on the ceiling near the bathroom, it is likely to be caused by the water pipe, because during the interior decoration, part of the water pipe will be improved into the interior wall, and if the water pipe embedded in the ceiling leaks, it will cause a large area of mold on the ceiling.

3. In the process of using the house, many owners do not pay attention to ventilation, and the indoor air circulation is not good, resulting in excessive indoor humidity, damp walls, and floating objects are easy to adhere to the indoor air containing nutrients, resulting in mold. 4. Interior decoration materials contain a certain nutrient base, such as: Dabai contains a certain amount of cellulose, and the sugar in cellulose is easy to produce mold under a certain temperature and humidity; If the ceiling is not completely dry, moisture will be trapped in the walls, which will lead to mold and hairy growth on a large area of the ceiling.

In addition, the use of inferior interior decoration materials is prone to mold under a certain humidity. 5. At the junction of the ceiling and the outdoor cement, when there is a lot of rainwater, it enters the room through the gap, causing the window to be damp. After a long time, it is easy to become moldy and hairy.

Pro-<>

Summary. The humid weather is not only limited to moldy roofs, but also moldy walls are a very common phenomenon in southern families, after all, the power of the rainy season in the south should not be underestimated. Dozens of days of gentle but melancholy rain, occasionally mixed with an extremely violent storm, not only is the road wet, but the air seems to be filled with water, making people feel as if they can grow small mushrooms on their heads.

Roof mold, what causes.

The weather stove is damp Not only limited to the roof of the house, but also the mold on the wall is a very common phenomenon in southern families, after all, the power of the rainy season in the south should not be underestimated. Dozens of days of gentle but melancholy rain, occasionally mixed with an extremely violent storm, not only the road is wet, but the air seems to be filled with water, making people feel as if they can grow small mushrooms on their heads.

The rainy season means that the air humidity soars to more than 95%, and the wall is in this humidity environment for a long time. In this regard, in addition to dealing with the mildew that screams about the loss of the house, the most important thing is to solve the phenomenon of excessive air humidity, and the most simple and crude way is to arrange a dehumidifier, which is simple and effective.

Leaking pipes and liquid If the water pipes in the home go to the top, and the pipes just pass through the moldy area of the roof, then it can basically be determined that the leakage is the culprit of the moldy roof. In this case, you can ask a professional master to come to the door to do a pressure test, determine the location of the water leakage, and then carry out targeted blind treatment, only timely leakage can effectively improve the phenomenon of mold on the roof.