The Affects of Relative Humidity
A customer in Rockaway, NJ called SERVPRO of North Morris County. They said "I think I have a mold problem". They described the problem as a "dark substance" on our basement wall.
They were perplexed because they had never had a water leak of any kind in the basement, but now they thought they had a mold issue.
We explained that, although they may never has a flood, a leaking pipe or appliance, it was possible to grow mold.
When we arrived, we measured the relative humidity and discovered it was well over 60%, the baseline above which mold could grow.
We remediated the problem and advised that installing a appropriate sized dehumidifier should prevent the problem from occurring again.