City Of Chula Vista
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Commercial Building Operations and Maintenance


Air Conditioning Maintenance


Air Conditioning Performance


Air Temperature


Building Envelope Maintenance




Boiler Combustion Air Tune Up


Boiler Maintenance


Boiler Water Treatment


Chiller Maintenance


Cooling Tower Maintenance


Comfort Factors


Ducts and Dampers


Occupant Issues


Predictive Maintenance


Preventative Maintenance




Relative Humidity



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Relative Humidity

  • People prefer humidity levels less than 40%.  Above 40% can harbor mold within structures and air conditioning systems.

  • People will be uncomfortable in high humidity environments.  Humidity makes it harder for humans to sweat and cool off. 

  • Destructive microorganisms flourish in high humidity.  Rot, mold and condensation, which may not be visible, can cause serious structural damage in buildings with high levels of humidity.

  • At the other end of the spectrum, low humidity causes people to have dry throats and nasal passages.  Static electricity can also be a problem in low humidity environments.

City Of Chula Vista



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