There is a watermark on the wall of the living room at home, which is getting bigger and bigger, obe

Updated on Living room 2024-03-04
2 answers
  1. Anonymous users2024-01-23

    The problem is on the façade.

    Originally, the exterior wall was ventilated, and if there was water, it would evaporate, and some small cracks in the wall were not a big problem.

    Now that it is sealed by the insulation material, there is no place for a little water on the wall to evaporate, and it will slowly come in along the cracks in the wall, and there will be a watermark, and maybe it will become moldy.

  2. Anonymous users2024-01-22

    i？？？Such.

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