What should I do if the corner of the new house is moldy?

The moldy walls of new houses are mostly caused by humidity. If the mold is not too serious, you can wash the wall with 80% alcohol. Pay attention to ventilation and wear protective gloves, masks and glasses when cleaning. In order to avoid mildew again, we should pay attention to thoroughly drying the walls, eliminating the causes of mildew, and properly heating and ventilating. In rainy days, try to open the window as little as possible.

In addition, try to make the wall dry. In wet weather, you can use dehumidifier, air conditioner and fan to absorb the water on the wall. Once there is water vapor on the wall or furniture, wipe it with a dry rag immediately.

If the wall is seriously moldy, all the original putty on the moldy wall should be removed, and then the wall should be reprocessed according to the normal wall construction procedure.

Extended data

Causes of moldy corner

Moldy corners are mostly caused by wet walls, which generally have three reasons.

1, water supply, drainage pipes or heating pipes leak, resulting in wet walls. Over time, the wall will be moldy.

2. External rainwater seeps into the room, resulting in wet walls. Cracks may appear at the junction between the baffle under the balcony window (mostly made of precast floor slab, which is easy to crack at the junction with the wall) and the wall, or the sealing performance of the window is not good, which leads to the infiltration of external rainwater into the room, which mostly occurs in the rainy season.

3, the wall insulation is not done well, resulting in a large temperature difference between indoor and outdoor, so that the moisture in the indoor air will condense on the wall when it is cold, resulting in the wall being wet. The first case can be ruled out by doing inhibition experiments. If the inhibition experiment fails, it means that there must be a leak somewhere in the suppressed pipeline.

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