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Forensic Water Intrusion Investigations & Building Investigation Services

Our forensic building investigation services uncover the root cause of structural issues, water damage, and construction failures. Expert reporting you can trust.

When signs of moisture damage, unexpected leaks, or wall deterioration appear, our forensic water intrusion investigations uncover what’s hidden behind the surface. At Inspec, we specialize in detailed building inspection services that trace failures back to their origin—saving time, money, and liability. Whether your structure is suffering from water intrusion, thermal bridging, or envelope failure, our team brings technical expertise and actionable documentation to every project.

What is a Forensic Building Investigation?

A forensic building investigation is a comprehensive analysis of a structure's performance and physical components, especially the building envelope and interior systems. This process often includes leak detection using ASTM E2128 and ASTM E1105 protocols, thermal imaging, destructive testing, and review of as-built construction documents. Investigations often uncover issues with building walls, window door systems, flashing, fenestration products, or HVAC condensation. These assessments are critical for property managers, developers, and insurance adjusters when moisture damage or material failure is suspected.

When Should You Schedule a Forensic Investigation?

  • Persistent water intrusion, leaks, or staining on ceilings and building walls
  • Mold growth or musty odors
  • Unusual condensation near windows or exterior doors
  • Cracks in exterior veneers, settlement issues, or movement joints failing
  • Disputes related to warranty claims, litigation, or construction defects
  • Recreating leaks during testing procedures for insurance or legal evidence

Our Forensic Services Include:

  • Forensic water intrusion testing and moisture mapping
  • ASTM-compliant field testing (E1105, E783, and E2128 protocols)
  • Infrared thermography and leak detection technologies
  • Review of construction drawings, change orders, and standard guide for evaluating water leakage
  • Building envelope and fenestration product assessments
  • Expert witness testimony and legal reporting for property managers and attorneys

Case Study: Condo Complex Facade Crack Investigation

Issue: Cracking and recurring water damage on brick veneer and underlying wall systems

Solution: A comprehensive forensic water intrusion investigation was conducted using infrared scanning, moisture probes, and destructive testing. The team recreated leaks during simulated rain events, confirming that missing expansion joints and improper window flashing contributed to system failure.

Result: Our experts designed a custom repair strategy and documented all findings to support resolution through arbitration. This ensured cost recovery and restoration of building performance for the property manager.

Learn more about national testing standards from the National Institute of Building Sciences (NIBS).

Frequently Asked Questions

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Common questions

How is a forensic investigation different from a building inspection?
An inspection records current condition — what is cracked, stained or deteriorated. A forensic investigation determines the mechanism that produced that condition, using document review, diagnostic testing and exploratory openings. The deliverable is an explanation supported by evidence, not just a list of observations, which is what claims, arbitration and durable repair decisions require.
Will you need to open up finishes or cladding?
Sometimes. Where the governing condition is concealed, limited exploratory openings are the only reliable way to confirm it. We select the fewest locations that will answer the question, agree scope and restoration with you beforehand, and use non-destructive diagnostics first to place those openings where they will be most informative.
Can your findings be used in litigation?
Yes. Investigations are documented so the observational record stays separate from the opinions drawn from it, with locations, dates and conditions recorded and samples retained where warranted. Reports state the basis for each conclusion and its limits. Expert testimony can be provided where a matter proceeds to arbitration or trial.
Do you perform the repairs you recommend?
No. Inspec is a consulting engineering and architecture firm, not a contractor. We investigate, test, design remedial work and advise owners through it, but the construction is carried out by others. That separation means our findings and recommended scope are not influenced by the repair work they might generate.
What information should I have ready before the investigation starts?
Original drawings and specifications, submittals, warranty paperwork, records of repairs already attempted, and photographs of the problem — older ones are especially useful. Also helpful is a person who knows the building's history and can describe when the symptoms appear. If documents are missing, we work from what exists and establish the rest in the field.
Can the building stay occupied during the investigation?
Usually, yes. Document review and the initial survey are non-disruptive. Testing and exploratory openings are localized and scheduled around building operations, and openings are closed afterwards. Where work must occur in a tenant space or over occupied areas, we coordinate timing and protection with the property manager before anything is opened.
What happens if there is more than one cause?
That is common. Failures often result from several marginal conditions acting together — a detail that was tight in design, built slightly differently, and then loaded by an exposure nobody anticipated. Our report describes each contributing factor and how it participates, rather than forcing the evidence toward a single explanation that the findings do not support.
Does the investigation include a repair design?
The investigation ends with findings and remedial options. Preparing construction documents for the repair is a separate scope, which we can carry out once the cause is established and you have decided how to proceed. We do not perform the repair work itself, so the design remains independent of any contractor's interests.
What is forensic water intrusion testing?
Forensic water intrusion testing is a process used to locate and diagnose moisture entry points in buildings. Investigators use ASTM standards like E2128 and E1105 to recreate leaks and determine how water enters through building envelopes, windows, or roof systems.
When should a forensic building investigation be conducted?
You should consider a forensic investigation if you're experiencing unexplained leaks, mold growth, facade cracking, or construction-related legal disputes. It’s also useful for insurance claims and warranty validation involving envelope failures.
What types of buildings can benefit from forensic investigations?
All building types can benefit—commercial, industrial and institutional. High-rise condos, office buildings, hospitals, and schools often need forensic services when envelope performance issues arise.
What standards are used during leak detection and testing?
Common standards include ASTM E2128 for water leakage evaluations, ASTM E1105 for field water penetration testing, and AAMA 511 for forensic testing of fenestration products. These ensure the investigation follows industry best practices.
How long does a forensic building investigation take?
The duration varies based on project scope. A small leak investigation may take 1–2 days, while complex building envelope assessments may require multiple site visits, testing phases, and reporting periods.