Regional Medical Center — 185,000 SF
During Phase 2 substrate verification, our agent reviewed the contractor's moisture test results for a 22,000 SF patient wing on the second floor. ASTM F2170 in-situ probe results showed 82% RH in three test locations — above the sheet vinyl manufacturer's 75% RH maximum.
The contractor was prepared to install. Materials were on-site. The GC's schedule showed flooring starting Monday.
We documented the test results, referenced the manufacturer's published limit, and notified the owner's representative and architect Friday afternoon.
Result: Installation was deferred two weeks. The GC accelerated HVAC operation in that wing to reduce slab moisture. Re-testing confirmed 71% RH. Flooring was installed on compliant substrate.
Without verification: 22,000 SF of sheet vinyl installed over wet concrete. Probable disbondment within 12–18 months. Estimated replacement cost: $440,000 plus patient relocation during remediation in an occupied hospital.
K-12 School District Bond Program — 4 Schools, 280,000 SF Total
The district's bond program included four new elementary and middle schools built simultaneously by two different general contractors using three different flooring subcontractors.
During Phase 3 monitoring at School #2, our agent documented that the HVAC system was not operational during the carpet tile acclimation period. Interior temperature was 48°F. The manufacturer's requirement: 65°F minimum for 72 hours before and during installation.
The flooring contractor said they'd "been doing it this way for years." Our agent documented the ambient temperature with continuous data loggers, referenced the manufacturer's published requirement, and notified the project team.
Result: Installation was paused until HVAC was operational and interior conditions met requirements. At Schools #3 and #4, the GC proactively confirmed HVAC operation before scheduling flooring — because they knew we'd document it.
Without verification: Carpet tile installed at 48°F across 60,000 SF. Adhesive failure probable within the first heating season. The district would have faced closure of classroom wings for remediation — during the school year.
State University Science Building — 120,000 SF
This project had four flooring types with four different manufacturers, each with different installation requirements. During pre-installation review, our agent identified a conflict: the project specification called for ASTM F1869 (calcium chloride) moisture testing, but two of the four manufacturers required ASTM F2170 (in-situ RH probe) testing and would not accept F1869 results for warranty purposes.
The architect's office confirmed this was an oversight in the specification. The contractor had planned to test using F1869 only — which would have voided warranties on half the flooring before installation even began.
Result: Testing protocol was corrected before any testing occurred. All four flooring types were tested per their respective manufacturer requirements. All warranties remained valid.
Without verification: Two manufacturers would have denied warranty coverage because the wrong test method was used. The owner would have discovered this only after a failure — years later — when it was too late to fix.
County Government Complex — 95,000 SF
During Phase 3 installation monitoring, our agent observed the LVT installer using a 1/16" x 1/16" x 1/16" square-notch trowel for adhesive application. The adhesive manufacturer's requirement: 1/16" x 1/32" x 1/32" U-notch trowel.
The installer said the trowels were "close enough." Our agent photographed the trowel in use, documented the manufacturer's published requirement, and notified the project team.
Result: Correct trowels were on-site the next morning. Approximately 3,000 SF of LVT had been installed with the wrong trowel. The contractor, manufacturer, and owner agreed to monitor that area and the contractor documented acceptance of responsibility for that section. The remaining 55,000 SF of LVT was installed with the correct trowel.
Without verification: 58,000 SF of LVT installed with incorrect adhesive spread rate. Potential for adhesive failure — not enough adhesive transferred to bond the flooring. The kind of failure that shows up at 18–24 months as loose tiles and edge curling, long after the installer has moved on.
The Pattern
Every one of these issues was discoverable during installation. Every one was correctable before flooring went down. Every one would have become a major failure discovered months or years later — when temporary conditions could no longer be reconstructed.
That's what Flooring Commissioning does. It catches problems when they're still fixable and documents compliance when temporary conditions are still observable.
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