Concern: Long Reach High School: October 8th, 2018 (CXLRHS2018000076)

Room 335
Date of IEQ Report Form
Date of Report
December 20th, 2018
The room smells musty, especially after the weekend.
IEQ Investigation Process

Identify deficiencies that may impact IEQ and/or sources of odor concerns. Typically includes the following depending on the nature of concern, but not limited to:

  • interview/questionnaire of concern individual(s)
  • inspection above drop ceiling (condition of roof deck, pipe insulation, return air plenum)
  • inspection of ventilation system (operation of variable air volume box and outdoor air dampers, check controls, measurements of carbon dioxide, temperature and relative humidity, sources near outdoor air intake, measure return and supply air volume, cleanliness of coils, liner and condensate pan)
  • inspection of exterior
  • inspection below drop ceiling (housekeeping, sink and floor drain traps, signs of past and present moisture concern via visual and/or moisture meter, mold growth, ensure connection of current and capping of abandoned sanitary vents, odorizers, excessive plants and fabric items, identify potential pathways, and measure volatile organic compounds, carbon monoxide, and lighting)

Date(s) of Assessment: October 12, 2018

No mold growth was observed.

No thermal anomalies indicative of elevated moisture were observed.

A slight carpet odor was sensed.

No concerns were identified with the rooms Fan Coil Unit.

Areas above the drop-ceiling were assessed. No concerns were identified.

The relative humidity was measured and was acceptable (37.8%).

The odor may have been associated with building materials and room supplies which are influenced by expected fluctuations of indoor and outdoor air temperatures and humidity levels. The unit ventilators fan operates continuously during scheduled hours of operation. The ventilation unit will not be cooling or heating if the room’s thermostat is satisfied. As a result, if the room's temperature set point is satisfied and weather outdoors is damp/humid, the ventilation will introduce unconditioned air into the space. "Musty/mold" odors are often reported under these circumstances.

Date Closed
Tracking Number