Concern: Rockburn Elementary School: April 12th, 2021 (CXXRES20210001B4)

Date of IEQ Report Form
Date of Report
Custodian indicated black staining on metal support beams in cafeteria.
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 of Assessment: April 16, 2021

The mold growth (~2 square feet) identified on the metal support beams has been identified and cleaned in the past, however a definitive cause was not identified.

To further investigate the cause, a roofing consultant removed portions of the metal roof (above the area of concern) to determine the cause. It was found that insulation was missing (~1" gap) at the ridge of the roof. The missing insulation was likely causing condensation to occur, subsequently causing the mold growth. 

The roofing consultant did not believe the mold growth was due to a roof leak.

The area of missing insulation was insulated and the metal roof was re-adhered. 

Corrective Actions
May 26th, 2021

A board-approved restoration contractor cleaned the visible mold and then encapsulated the effected areas.

Tracking Number