What Should The Relative Humidity Be Inside My House?

  • By Air Care Wizard
  • Posted January 21, 2013
Humidity Levels that lead to mold growth

Mold growth conditions are all about the available moisture content. A good rule of thumb is to keep indoor humidity levels below 60% and it becomes impossible for mold to grow. Room relative humidity can vary greatly. The humidity of building materials changes with the weather or climate and the material moisture lags behind the moisture in the air. To perform a good moisture inspection, one should have a good understanding of these concepts and the necessary meters to perform the measurements.If indoor humidity exceeds 60% to 70% for prolonged periods (several days) and you have pre-existing mold conditions with already established mold growth that may be in suspended animation, the materials that the mold are growing on can become damp enough to allow for mold growth to re-activate. Hope this helps

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