Concern: Guilford Elementary School: June 11th, 2021 (CXXGES20210001C1)

Location
163
Date of IEQ Report Form
Date of Report
July 23rd, 2021
Concern
I found mold under a poster on an exterior facing wall. It is near the windows and the exit door in the classroom. The push pins I pulled from the wall also had rust in them. It seems like there's dampness in the wall. Multiple pushpins from different parts of the wall had rust on them.
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)
Findings

Date of Assessment: June 15, 2021

The poster in question had been removed and no mold growth was observed on the drywall (where the poster was).

No elevated moisture was detected in the drywall, however further investigation indicated that the drywall was adhered directly to the exterior wall in the space. Because this can trap water vapor between the drywall and the exterior wall, the Office of the Environment recommended it be removed,  to further assess and to avoid any future potential issues.

The remainder of the school was surveyed and two other rooms were observed to have the drywall directly adhered to exterior block walls. In total, the drywall installation was in question for Rooms 163, 156, and 183 .

A board-approved contractor removed the drywall and the cabinetry the week of June 21st. Mold growth (sporadic) was identified on the backsides of the drywall in all three rooms. The mold growth was in locations where the exterior wall had holes/gaps. Additionally, in room 183 mold growth was observed on the back of the drywall above the window.

The window noted above was further investigated and no issues with the window's installation were noted. The leak/mold growth was likely historic and had since been repaired.

Wooden cabinets in Room 183 had mold growth on the backsides of the cabinets. Building Maintenance removed and replaced the backsides of the cabinets in this room.

Corrective Actions
June 2nd, 2021

As of July 2, 2021, the drywall has been removed, the holes in the block sealed, and the block wall has been painted. Drywall will not be placed back into these areas.

Closed
Yes
Date Closed
Tracking Number
CXXGES20210001C1