riddle Elementary School n C H a l l e n g e S Limited Training in Building Operations and Maintenance Before coming to Riddle, Jeff worked as a mechanic and truck driver. He had held one custodial position earlier in his career but worked in a building with automatic controls and mainly relied on trial and error to operate the building systems. After joining Riddle’s custodial staff, Jeff received a few training sessions on how to run the software controlling the school’s HVAC system, but he had no general training in building operations and plant maintenance. Indoor Air Quality Concerns Several staff members at Riddle had raised the issue of indoor air quality (IAQ) after noticing some spots on the carpeting that appeared to be due to high levels of moisture. An IAQ consu

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