A building’s water-resistive barrier is supposed to keep water out for the life of the structure. Every hole poked through that barrier is a place where water can find its way back in.
Traditional trim, when it’s mechanically fastened with screws or nails driven through the wall assembly, creates exactly that: a series of small, deliberate penetrations through a system that was designed to have none.
Years later, when water intrusion damage shows up somewhere behind that trim, figuring out who’s responsible for it is rarely simple. The architect who specified the trim system, the contractor who installed it, and the manufacturer who made the material can all end up named in the same claim. Untangling which one caused the failure is often the hardest part of the whole dispute.
PW Profiles builds its architectural EPS products that attach to the surface of an already weatherproof wall system, without penetrating the membrane at all. To learn more about how that changes the liability picture, call 206.953.5209 in the United States or 604.285.6550 in Canada.
How Trim Ends Up Penetrating the Membrane
Most traditional exterior trim, wood, precast concrete, and many GFRC installations among them, get mechanically fastened to a building. Screws, nails, or anchors go through the trim and into the wall assembly behind it, which almost always means going through the water-resistive barrier, the membrane responsible for keeping bulk water out of the wall cavity.
Each of those fasteners is a potential entry point. Manufacturers and installers rely on flashing, sealant, and careful detailing around every one of them to keep water out despite the hole. That detailing has to be done correctly every single time, on every single fastener, for the system to hold. Sealant also degrades over years of sun, temperature swings, and building movement, long after the original installer has moved on to other projects.
Who Ends Up Liable
Construction defect claims involving water intrusion rarely point to a single, obvious cause. Liability in these cases generally falls into a few categories:
- Design Defects — If an architect specified a trim system or detail that created an inherent water intrusion risk, even when installed correctly, liability can trace back to the design itself.
- Workmanship Defects — If the design was sound but a contractor or installer failed to flash, seal, or fasten a penetration correctly, the failure points to poor execution rather than a flawed plan.
- Material Defects — If the trim material or fastening hardware itself failed, degraded prematurely, or didn’t perform as the manufacturer represented, liability can extend to the product itself.
Proving which of these applies, sometimes years after installation, is where these cases tend to get complicated and expensive. Contractors and manufacturers often dispute fault with each other, and building owners can end up caught in the middle of a claim that takes months or years to resolve.
Why These Cases Take So Long to Resolve
Water intrusion damage is often a latent defect: not visible or discoverable through a normal inspection, sometimes for years after a building is completed. By the time damage becomes obvious, water has often already been finding its way through the same penetration point for a long time, making it hard to pin down exactly when the failure started and who was responsible for the conditions at that time.
Most states also set a statute of repose, a hard deadline, often somewhere between six and ten years after substantial completion, after which a construction defect claim generally can’t be brought at all, regardless of when the damage was discovered. That timeline varies by state and by the type of claim involved, and it’s worth confirming with an attorney rather than assuming a specific number applies to a given project.
A Different Approach: Nothing to Penetrate
PW Profiles creates high end architectural EPS products that are surface-applied rather than mechanically fastened through the wall assembly. The system attaches to an already weatherproof, code-compliant wall, which means there’s no penetration point built into the installation for water to exploit in the first place.
For architects and contractors looking to reduce this exposure on future projects, PW Profiles ships cement-coated architectural EPS trim, columns, and mouldings throughout the US and Canada. Call 206.953.5209 in the United States or 604.285.6550 in Canada, or reach out through our website to request samples or technical specifications.
