Building envelope expertise. Forensic experience turned into prevention — because where leaks appear is rarely where the water enters.

Building envelope expertise is the specialized knowledge of how a building's exterior systems keep water, air, and heat where they belong — and how those systems fail. At Ace, that expertise is forensic-informed, meaning it is built on decades of investigating why real buildings leak, corrode, and lose energy. We apply that knowledge in two directions: diagnosing existing failures and preventing new ones at the design stage. It spans building science, materials, detailing, and accredited field testing. The practical value is that we can look at an assembly and anticipate where it will fail before it does. That is very different from a generalist who treats the envelope as one line item among many. It is a discipline in its own right, and it is the only thing we do.

The three failure modes behind most envelope problems are water intrusion, air leakage, and thermal bridging. Water intrusion drives roughly 70% of California construction-defect claims and usually traces back to a failed detail far from where the stain appears. Air leakage carries moisture into assemblies and wastes energy, while thermal bridging creates condensation that rots walls from the inside. The solutions follow from correct diagnosis: moisture mapping and accredited water testing for intrusion, ASTM E783 testing and air-barrier detailing for leakage, and moisture-and-temperature modeling for thermal bridging. In every case, the fix is only as good as the diagnosis behind it. We resolve the root cause rather than the symptom, which is why our corrections tend to hold.

Envelope failure diagnosis starts with the symptom and works backward to the true source. We document the condition, then use forensic tools — moisture mapping, electronic leak detection, infrared thermography, and accredited water and air testing — to trace where water or air actually enters the assembly. Because water travels along framing, membranes, and gravity before it shows up inside, the entry point is often nowhere near the visible damage. We do not begin designing a repair until we can prove the cause. This evidence-based approach prevents the common cycle of repeated "repairs" that never solve anything. It also produces documentation that stands up if the failure becomes a warranty dispute or claim. The goal is a diagnosis you can act on with confidence, not a guess.

Building science is the study of how heat, air, and moisture move through a building assembly, and how those flows interact over time. It matters because envelope failures are almost always a building-science problem: condensation forming where warm meets cold, air pressure driving rain through a joint, or a vapor drive that traps moisture in a wall. Our building science expertise lets us model those conditions before construction and predict where trouble will occur. Instead of the jargon — "hygrothermal analysis reveals dewpoint convergence" — we translate it into plain guidance: condensation will form inside this wall and cause hidden damage unless the detail changes. That translation is deliberate; we aim to make clients feel smarter, not smaller. Sound building science is what separates a durable assembly from one that merely passes inspection.

Yes — a large share of our work is on existing buildings we had no hand in designing or constructing. Our conditions assessments and forensic investigations are built precisely for that situation: an owner, HOA, or manager has a leak, a failed test, or visible deterioration and needs to know why. We approach it with fresh eyes and accredited methods, so our findings are objective regardless of who did the original work. This independence is an advantage, especially when a warranty or dispute is involved, because we have no incentive to protect a prior party. We document what we find, identify the root cause, and give you a prioritized path forward. Whether the building is two years old or twenty, the diagnostic process is the same. The forensic knowledge we bring is exactly what turns a mystery leak into a solved one.

Prevention is only as good as your understanding of failure, and forensic experience is a catalog of exactly how buildings fail. Having investigated thousands of failures, we know which details leak, which sequences trap water, and which "value engineering" decisions come back as claims. We bring that library to the design table, flagging the assemblies and transitions most likely to cause problems and detailing them correctly from the start. This is why our envelope performance consulting is grounded in evidence rather than theory. A firm without forensic depth is designing from the manufacturer's ideal, not from what actually happens on a job site in the rain. The result is a design that anticipates real-world conditions and workmanship. In short, seeing how buildings fail is the best possible training for making sure yours does not.

Yes. Envelope performance consulting on new designs is where our expertise prevents the most cost and risk. We review the envelope for constructability and water management, model thermal and moisture behavior, and detail the waterproofing, air-barrier, and fenestration systems so they perform as intended. We can serve as a design peer to the architect or as Architect of Record for the waterproofing scope, producing stamped drawings rather than opinions. Engaging us early means catching problems on paper, where a correction costs about one-tenth of a construction-phase fix and one-hundredth of a post-occupancy repair. We also support Title 24 performance goals through thermal and energy analysis. The earlier we are involved, the more of the risk we can design out. It is the most cost-effective form of protection an owner or developer can buy.

The difference is focus and forensic depth. A general engineering firm handles the envelope as one of many services; we do nothing else, and our knowledge runs correspondingly deeper. We pair FGIA/AAMA-accredited testing with the ability to act as Architect of Record for the waterproofing scope, so our findings and designs carry evidentiary weight. Our team has investigated thousands of failures, which means we design against real-world failure modes rather than idealized details. The senior people who diagnose your problem are the same people who design the fix — there is no handoff to a junior team. And our proprietary inspection database lets us turn field observations into actionable reports in about a week. For envelope-specific problems in the $2M–$100M asset class, that specialization is exactly where we outperform a broader practice.