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Theme of your question:: Humidity We acquired a property in the DRC in the former in May. At the end of August, after heavy rain, the moisture infiltrated under the newly laid glass cloth. The floor vitrified recently also suffered. Machines have been installed by our insurance to absorb moisture (15 days). According to the new measurements, the humidity has returned to a tolerable level. However the cellars are very wet, clay and water has infiltrated there because a pipe was defective. The pipeline has been repaired. Our parquet is not directly on the cement but on wooden foundations covered with a thin layer of cement. The company tells us that we can pour a cement on top of our old floor and put back either a new floor or tiling. The company does not want to start the refurbishment work as long as the cellars remain wet; but we do not own cellars. The outer walls of our building are very porous. Could we use the services of a company that make injections into the walls to stop the humidity? Should we insist on the opposite insurance for the dehumidification in the cellar takes place and how could it be done? Sincerely.

Your mishap confirms the advice I often give not to buy real estate in the summer season but rather in autumn or winter, bad seasons where the problems of evacuations of water and humidity are revealed.

This being so, you must of course first cure the causes and get a cleansing of the cellars that are I imagine under your premises. It is necessary to put in residence the co-ownership to do it only for the sake of the salubrity. Here too, a drying by dehumidifier can intervene.

Regarding your "business", note that you do not run a screed or slab on a wooden floor, according to what you told me, on joists or joists. It must of course put down, place an insulator in the bottom of "excavation" and a plastic sheet (polyane) to neutralize the rise of moisture. You can also establish a dry screed (two DIY sheets are devoted to this theme in the site), on which you will ask panels and the coating of your choice.

Injections (assuming that we believe in their effectiveness) can in no way be a solution for you before proceeding to the various interventions that I propose.

On the same topic

  • Questions answers
    • Painting the walls of a flaking cellar
  • DIY tips
    • Humidity in a cellar

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