Questions for the client:
• When did you occupy the house/building?
• When was the HVAC system made operational?
• Does the HVAC system operate year round?
• Do you monitor or control the humidity level of
the house/building?
• How do you maintain the building environment?
• Are windows open during the year? For how
long?
• Do you live in the space year round, or is this a
vacation home that is closed up for part of the
year?
• How do you clean the floor? What products are
used in flooring maintenance?
• When did you notice the problem?
• Where did the problem start?
• How did the problem progress?
• Has the problem worsened since you first noticed
it? Stayed the same?