Client: Turner Construction Company
Location: Bay City, Texas, U.S.A.
Markets: Construction | Industrial
Challenges
During final sheetrock installation within this 2B dollar, industrial,
“semi-open-air” construction project, the onset of a winter front
(by no fault of the contractor) caused a rapid dew
point-driven/condensation event (interior “rain”) that resulted in
full coverage mold across the interior of the plant. Millions of
dollars of state-of-the-art electrical equipment throughout the
facility was at risk of damage; the average plant ceiling height
varied, but was typically well in excess of 35 feet from slab. The
size of the facility and strict (continuing) construction schedule
necessitated division of the plant (schematically) into 12
functional areas (containments) for mold assessment,
remediation, and eventual clearance. The owner and client
required unconditional clearance under a mutually agreeable
protocol.
Full coverage mold impact following holiday weekend moisture intrusion
Remediation required systematic protection of electrical/mechanical equipment
Solution
Given Turner’s trust in TGE’s work, TGE mobilized crews for
expedited assessment and comprehensive characterization; and
prepared a detailed, site-specific Construction Materials Management Plan (CMMP)
, a mold protocol, and associated
Clearance Criteria. The CMMP is a tool that TGE originated given
the firm’s history in healthcare construction and post event
emergency response; it proved vital in not only protecting staged
materials awaiting installation but also all previously installed
electrical equipment that had already been engaged (until HVAC
systems could be activated across the plant). Under owner’s
requirements, the Texas Mold Assessment Remediation Rules
(TMARR) was complied with (including notification) and the
project-specific protocol strictly followed. TGE also performed
mandatory asbestos assessment in compliance with Texas
Department of State Health Services (TDSHS) prior to
disturbance of any installed materials.
Outcome
The facility was completely remediated within 90 days of the
event without loss or permanent damage to vital equipment; the
majority of affected sheetrock was saved from demolition,
cleaned, and treated effectively with an antimicrobial coating (for
future antimicrobial benefits). The work was completed on time,
in scope, and the reoccurrence of mold has not been found to
date. This project would prove to be the largest single mold
remediation effort under TMARR notification for a single facility,
with millions of square feet of mold-impacted surfaces involved.
Installed electrical/mechanical equipment preserved
Extensive condensation on surfaces throughout building under construction
Remediation conducted within 12+ functional areas
Support building construction materials preserved/protected to complete building