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Indoor Pools, Moisture, and Related Problems

Indoor Pool

Mold growth on rafters in a high moisture environment


  • Chlorine odors

  • Visible mold growth

  • Discoloration of wood and other building materials due to water stains

  • Weakening of the wood due to rot

  • Degradation of indoor air quality


  • Moisture laden air moves into wall/ roof cavities and condenses when it comes in contact with the cooler surfaces.

  • High levels of relative humidity, in conjunction with indoor temperature changes, create moist surfaces where mold and mildew can grow

  • Missing or incomplete vapor retarder

Side effects

  • Damage to interior woodwork and finishes

  • Rotting of wooden structural framing

  • Mold and mildew growth


Case Studies

FOAM-TECH Solutions

  • Perform initial building diagnostics and testing to identify causes of the problem. Tests may include infrared thermography, blower door testing, or temperature and humidity monitoring.

  • Isolate the climate controlled spaces.

  • Review the condition of vapor retarders currently installed.

  • Seal any air leaks resulting from infiltration or exfiltration from the building. Creating a tight building envelope is the first step to controlling the indoor environment.

  • If necessary, recommend the installation of mechanical ventilation systems to control the movement of air/moisture in and out of the building.