You ventilate to remove the extra indoor produced humidity and to exchange it for new air with lower humidity and lower levels of carbon dioxide. By comparing the amount of damp in the in- and outdoor air, you can see if it is normal.

If the indoor air is abnormally damp you need to look for the source of the damp, which can be due to a construction fault or a leaking plumbing, alternatively not good enough ventilation.

Fungus is detected by bad smell, discolouring of surfaces, sagging floors and rich occurrence of insects (silverfish, wood louse, spiders, mites and others). To prove hidden occurrence of fungus, a fungal analysis is necessary. Remaining smell after water damages is prevalent. Therefore a smell sanitizing is often done. You get rid of much of the smell by airing and increased ventilation. However, the ozone aggregates an effective utility.

Ozone is a toxic oxygen compound that reacts with organic compounds. Odorants in the air you breathe is oxidized –annihilated.

High humidity is a prerequisite for the Real House Fungus to establish itself. Damp damages can arise as a result of many causes, e.g. unventilated crawl spaces, wrongly insulated houses or as a result of a water damage that have not been taken care of in the right way.

A few tips to protect yourself against damp damages and House Fungus affections:
  • Inspect the crawl space to see if it is dry.

  • Insure that the drain pipes point away from the house.

  • Avoid storing wood, plastic or papers direct on damp basement floors, in crawl spaces et cetera.

  • Place a cap on the chimney top to avoid rain causing dampness inside the chimney

  • Do not create tight spaces.

  • Do not build in the crawl space, the basement stairs or the garret –you got to see in there!

Regarded as construction faults and shortage counts:
  • Leakage through outer roofs when it rains

  • Leakage through outer walls during torrential rain

  • Rising damp from ground to the foundation depending on the ground's angle against the building, wrongly placed drainage, shortage of damp protection

  • Condensate in the outer parts of outer walls and garret spaces- due to a shortage of indoor damp protection

  • Condensation formed during the building of newly built house that have not dried out properly