Concern: Forest Ridge Elementary School: September 29th, 2020 (CXFRES202000018A)

Portable 80
Date of IEQ Report Form
Date of Report
Suspect mold was identified by Building Services (Roofing) while investigating multiple stained ceiling tiles.
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(s): September 22, 2020

Building Services (Roofing) contacted the Office of the Environment on September 22, 2020 to report possible mold on insulation, above the drop ceiling within Portable 80. The suspect mold was identified while investigating multiple stained ceiling tiles.

The Office of the Environment assessed above the drop-ceiling. No visible wet areas were identified.

No concerns were identified with the temperature and relative humidity.

The fiberglass insulation in question appeared dry.

The fiberglass insulation has a paper backing which is brown on one side and black on the other side. 

The brown (visible) side appeared to be deteriorating making the black side (backside of the paper) visible from below. The pattern in which this was occurring resembled mold growth.

A surface sample of the suspect mold was collected as a precaution. No mold growth was identified on the sample.

No further action in regards to the insulation appears warranted.

Corrective Actions
September 22nd, 2020

Building Services (Roofing) has determined the roof to be the cause of the multiple stained ceiling tiles and is to perform the necessary response actions.

Date Closed
Tracking Number