Project Experience

Forensic Investigations.
Documented Outcomes.

Every case below represents a real tile or stone failure on a luxury hospitality or high-value residential project. Each was investigated using thermal imaging, bond strength testing, laboratory analysis, and standards-referenced documentation — and resolved with technically credible findings.

6 Documented Cases
Thermal Imaging · Bond Testing · Lab Analysis
TCNA · ANSI · NSI Standards Referenced
Failed travertine pool deck tile removed exposing oversanded Miami Sandwich mortar bed with collected sample jar Removed pool deck travertine tile at evidence marker 29 revealing deficient mortar bed condition at hotel pool
Case Study 01
Luxury Hotel · Pool Deck · Travertine

Pool Deck Travertine Failure: "Miami Sandwich" Mortar Composition Defect

Pool Deck Travertine Mortar Analysis Lab Testing Luxury Hotel
The Problem

Travertine tiles on a luxury hotel pool deck began lifting, cracking, and separating from the mortar bed shortly after project completion. The failure was widespread across the deck field and accelerating. Initial contractor response attributed the failure to inadequate maintenance — a claim that required forensic investigation to evaluate.

Investigation Approach

After thorough review of project specifications and related industry standards, an on-site investigation included selective tile removal, physical examination of the mortar bed, and collection of mortar specimens for laboratory analysis. The mortar composition was compared against project specifications and ANSI A108 installation requirements for exterior wet-area applications.

Key Findings
After thorough review of project specifications and related industry standards, an on-site investigation included selective tile removal, physical examination of the mortar bed, and collection of mortar specimens for laboratory analysis. The mortar composition was compared against project specifications and ANSI A108 installation requirements for exterior wet-area applications.
Laboratory analysis confirmed the mortar bed was composed of an oversanded mixture and S-Type mortar (stucco mix), both violating the specification and ANSI A108 requirements for a structurally sound mortar bed.
The installation exhibited all of the typical characteristics of the "Miami Sandwich" or "False Med Bed" installation: a diffuse, non-compacted mortar bed with inadequate structural integrity and thinset adhesion that led to extensive cracking and delamination of the travertine pavers.
ANSI A108.1 ANSI A108.5
Outcome
Laboratory analysis of mortar specimens confirmed the composition violated project specifications. Contractor liability for defective installation was established through documented evidence. Client pursued remediation claim with full forensic support.
Digital caliper measuring crack width in stone tile floor with forensic evidence marker number 19 Hand-held digital caliper measuring tile crack at evidence marker 20 in luxury hotel lobby floor
Case Study 02
Luxury Hotel · Lobby Floor · Stone Tile

Lobby Tile Cracking Caused by Missing Movement Joints Throughout Field

Lobby Floor Stone Tile Movement Joints Expert Testimony Litigation
The Problem

Cracking appeared across the lobby floor tile field of a newly completed luxury hotel. The pattern was progressive, affecting both tiles and grout joints across the primary guest circulation area. The cracking represented both a safety concern and a significant reputational risk to the property.

Investigation Approach

Systematic documentation of crack locations, widths, and patterns using digital calipers and forensic evidence markers. Substrate conditions were evaluated. Installation records, specifications, and shop drawings were reviewed to identify design and workmanship deficiencies.

Key Findings
Crack locations and out of plane movement were documented at the initial on site assessment and again over time to show the progression of the damage.
The lobby tile installation lacked perimeter joints and adequate movement joints in the body of the work as defined by the project specifications and TCNA EJ171 requirements. The contractor failed to install them as required, constituting a clear workmanship deficiency.
TCNA EJ171 ANSI A108.01
Outcome
Settlement secured through expert testimony. Forensic documentation of missing movement joints established contractor workmanship liability. The general contractor agreed to a negotiated settlement after the presentation of Tactile Consulting Group's findings.
Cut shower liner waterproofing membrane exposed at floor-to-wall transition in hotel bathroom during forensic investigation
Case Study 03
Hotel · 75+ Guest Bathrooms · Shower Waterproofing

Shower Liner Defects Discovered Across 75+ Hotel Guest Rooms

Hotel Showers Waterproofing Liner Failure Multi-Unit Water Intrusion
The Problem

A hotel property began experiencing recurring water intrusion from guest bathroom showers into adjacent areas and below-floor assemblies. The problem affected multiple units across the property, suggesting a systemic installation defect rather than isolated incidents. Standard plumbing inspections had not identified the source.

Investigation Approach

Unit-by-unit forensic inspection was conducted across the affected floor. Each shower was systematically evaluated for waterproofing membrane integrity, liner installation, drain assembly, and tile bond conditions. Selective demolition was performed to expose the liner and sub-pan assembly at representative locations.

Key Findings
Shower liners were found cut at the floor-to-wall transition in the majority of units inspected — a systemic workmanship defect that compromised the waterproofing system in every affected unit.
The cuts created direct pathways for water to migrate behind the tile assembly and into the sub-floor structure, causing the recurring leak pattern across the property.
Liner installation failed to meet ANSI A108.01 requirements for waterproofing continuity and TCNA shower installation method standards.
The defect was not detectable by visual inspection of finished surfaces — only systematic forensic investigation across all affected units revealed the scope of the failure.
TCNA B415 ANSI A108.01 ANSI A108.13
Outcome
The full defect scope was documented across all 75+ units. Forensic evidence of cut liners established clear contractor workmanship liability. The responsible party was identified and remediation scope precisely defined, enabling the property owner to pursue a well-supported claim.
Removed concrete pool deck tile revealing deficient mortar coverage and spot bonding pattern on hotel installation Broken concrete pool deck tile removed from installation showing mortar bed failure and inadequate bond
Case Study 04
Hotel · Pool Deck · Concrete Tile

Pool Deck Concrete Tile Failure: Missing Movement Joints and Mortar Bed Breakdown

Pool Deck Concrete Tile Movement Joints Mortar Bed Exterior
The Problem

Concrete tiles on a hotel pool deck began cracking, lifting, and separating across the installation field. The failures were progressive and concentrated in areas with the greatest sun exposure and thermal cycling — conditions that place maximum stress on a tile system without adequate accommodation for movement.

Investigation Approach

Field investigation included mapping of failure locations, selective tile removal to inspect mortar bed conditions, physical examination of substrate, and review of installation documentation against applicable TCNA installation methods for exterior pool deck applications.

Key Findings
Movement joints were entirely absent throughout the tile field. No intermediate expansion joints were installed in any location across the pool deck area, violating TCNA EJ171 requirements for exterior installations subject to thermal cycling.
Mortar bed failures were documented at multiple locations, with evidence of internal cracking and delamination within the mortar bed itself- independent of the tile bond failure, another case of a "Miami Sandwich" installation.
The combination of missing movement joints and compromised mortar bed created compounding failure mechanisms that accelerated the pace and extent of tile displacement.
TCNA EJ171 TCNA F111 ANSI A108.1
Outcome
Both movement joint absence and mortar bed deficiencies were documented with standards citations. The investigation provided the property owner with a technically complete basis for pursuing remediation liability against the installing contractor.
FLIR thermal infrared image of hotel exterior wall revealing inferior mortar coverage through heat signature patterns Tile bonding grid showing mortar coverage pattern on exterior wall installation
Case Study 05
Hotel · Exterior Wall · Concrete Tile

Thermal Imaging Reveals Inadequate Mortar Coverage on Hotel Exterior Tile Installation

Exterior Wall Thermal Imaging Spot Bonding Bond Coverage FLIR
The Problem

Efflorescence and isolated tile discoloration appeared on the exterior wall of a hotel property. The visible symptoms were inconsistent and did not suggest an immediate structural risk — but the pattern raised concerns about the integrity of the underlying tile bond across the full façade. The property owner requested an investigation before a larger failure occurred.

Investigation Approach

FLIR thermal imaging, a non-destructive assessment tool, was deployed across the exterior wall surface to detect temperature anomaly patterns indicative of voids and spot bonding behind the tile face. Targeted tile removal was subsequently performed at targeted locations to verify findings and quantify mortar coverage.

Key Findings
Thermal imaging identified a widespread spot bonding pattern across the exterior wall surface — circular thermal signatures indicating adhesive applied at discrete points rather than as a full coverage back-butter.
Selective tile removal confirmed average mortar coverage of 63% — far below the 95% minimum required by ANSI A108.5 for exterior tile applications.
At 63% average coverage, the tiles lacked the bond surface area required to resist wind load, thermal cycling, and moisture intrusion — creating risk of catastrophic tile displacement from the exterior façade and significant potential liability for the hotel owner.
Thermal imaging allowed the full scope of the defect to be established non-destructively before any remediation work, providing an accurate basis for remediation cost estimation.
ANSI A108.5 ANSI A118.4 TCNA W244
Outcome
Thermal imaging identified the defect before catastrophic tile loss occurred. The property owner was protected from liability exposure and pursued proactive remediation. Documented bond coverage of 63% vs. the required 95% provided a clear, quantified basis for contractor accountability.
Cracked natural stone tile in luxury home floor with forensic evidence marker documenting failure location Cracked stone tile at grout joint with forensic evidence marker number 5 showing inadequate joint spacing in luxury residence
Case Study 06
Luxury Residence · Floor · Natural Stone Tile

Stone Tile Cracking in Luxury Home: Missing Movement Joints and Inadequate Grout Joint Spacing

Luxury Residential Natural Stone Grout Joint Width Movement Joints NSI Standards
The Problem

Stone tile flooring in a high-end residential property began cracking across multiple rooms. The property owner had invested significantly in premium natural stone material, and the failure was causing both financial loss and dispute with the installing contractor — who denied responsibility and attributed cracking to the stone itself.

Investigation Approach

Forensic investigation focused on joint width measurement across the installation, documentation of movement joint presence and placement, and evaluation of tile bond conditions. Grout joint widths were measured and compared against Natural Stone Institute guidelines for the specific stone type installed.

Key Findings
Grout joint widths were documented at measurements below the NSI minimum for the stone type installed. Narrow joints prevented accommodation of natural dimensional variation in the stone tiles, generating compressive stress.
Movement joints were absent throughout the floor field. No expansion joints were installed at columns, walls, or within the tile field at the required intervals per TCNA EJ171.
The combination of inadequate joint width and missing movement joints created a closed system with no relief for thermal and structural movement — causing the cracking pattern documented across the installation.
Investigation confirmed the stone material itself was not defective — the failure was attributable entirely to installation workmanship and non-compliance with specification and standards.
TCNA EJ171 NSI Dimension Stone Design Manual ANSI A108.01
Outcome
Investigation definitively ruled out material defect as a cause and established installation workmanship as the sole source of failure. The contractor's defense was refuted by documented joint width measurements and standards citations. The property owner received a technically complete report supporting their claim.

Facing a Similar Situation?

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Whether you are a property owner, general contractor, attorney, or insurance professional — if you have a tile or stone failure that needs investigation, we can help. Tell us about your project.