Class A Office Tower — Post-Remediation Verification
Independent PRV for a remediation following a 6-floor riser failure. Two of six floors required additional remediation cycles.
Class A office, ~340,000 RSF. Domestic water riser failure affected six floors over a weekend.
Initial response by restoration contractor within 4 hours. Drying complete by Day 8. Remediation scope addressed visible affected materials.
Independent PRV inspection of all six floors, plenums, and core walls.
Two floors retained elevated moisture behind core walls not addressed in initial scope.
Thermal anomalies confirmed by pin moisture meters at sub-surface depth.
Air and surface sampling per pre-defined clearance criteria.
Two floors exceeded clearance criteria; four floors passed.
Initial scope under-addressed core wall cavities; remediation contractor returned to address.
Re-remediation of two floors; re-PRV performed and passed.
Targeted demo of core wall sections, re-drying, antimicrobial treatment, re-sampling.
Independent PRV is the safety net. A 4-hour response time does not guarantee a complete remediation.