Clear scope. Clean execution.
Uri Freeze Damage Patterns on San Antonio Commercial Roofs
Parapet base flashing separation: The base flashing at the parapet wall is the most common Uri damage location on San Antonio commercial roofs. Base flashings bonded with contact adhesive - the most common installation method for TPO and EPDM flashings on roofs installed before 2015 - rely on adhesive bond strength that degrades at sustained subfreezing temperatures. When the flashing contracted at 4°F, the adhesive bond cracked at the top termination. The flashing settled back when temperatures rose and may look intact visually while carrying a compromised bond at the top that allows water entry under driving rain.
Heat-welded seam brittle fracture: TPO seam welds that were field-welded at cooler temperatures - common in October and November installations - can have areas of incomplete fusion that are undetectable by probe test at installation temperature but crack under the thermal contraction of a sustained hard freeze. Uri exposed this hidden defect across roofs that had passed installation quality control. The crack appears as a narrow opening along the weld line that is invisible in dry conditions and becomes a water-entry point when wet.
Pitch pocket and pitch pan deterioration: Pitch pockets - the pitch-filled metal pan flashings used on older San Antonio commercial roofs - contracted under Uri and cracked the dried bitumen or pitch filler at the surface. Cracked pitch pocket fill is an immediate water-entry point at every penetration it covers. We inspect every pitch pocket on pre-2021 roofs and specify replacement with manufactured pipe boots or fabricated metal flashings.
Membrane shrinkage at transitions: EPDM membrane on pre-2021 San Antonio roofs sometimes exhibits permanent shrinkage after the Uri freeze - the extended cold exposure caused dimensional change that pulled the membrane away from flashing terminations and drain bowls. This is distinct from the flashing separation and produces a gap at the membrane-to-flashing interface that is visible but easy to overlook as 'normal wear.'
Post-Uri Inspection and Repair Scope
We conduct Uri-specific inspections as a focused investigation of the six highest-probability damage locations: parapet base flashings, field seam welds, pitch pocket fill, curb flashing bond lines, drain bowl connections, and pipe penetration flashings. Each location is inspected with a probe or pull test and documented with a photograph regardless of whether visible damage is present. Buildings where the probe test identifies no failure get a written clean-inspection record - useful for insurance purposes and for capital planning.
Repair scope for Uri damage is typically parapet flashing replacement, seam weld repair at cracked locations, pitch pocket replacement, and pipe penetration flashing replacement - scopes that are well within the repair tier rather than replacement. The exception is buildings where the combination of freeze damage and pre-existing deterioration tips the damage threshold into replacement territory. We make that recommendation explicitly and explain the basis.
Insurance documentation for Uri claims: The February 2021 freeze was a named weather event with extensive NWS and insurance industry documentation. Uri-related claims that were not filed in 2021 may still be within the policy's notice window depending on the specific policy and coverage period. We produce inspection documentation formatted for adjuster review - the same structured report we produce for storm and hail claims - so Uri damage can be assessed by the adjuster against the policy language.
Frequently asked questions
My building did not visibly leak during the Uri freeze. Does it still have freeze damage?
Possibly. The most common Uri damage pattern - parapet base flashing separation and seam weld brittle fracture - does not produce active leaks until water is applied under meaningful head pressure. If your building sailed through the freeze and the subsequent spring rains without a leak, that is a good sign - but it is not a guarantee that the flashings and seams are intact. A post-Uri inspection gives you a documented condition record and identifies any compromised details before they become active leaks.
Is it too late to file an insurance claim for Uri freeze damage in 2026?
That depends on your specific commercial property policy - notice requirements and claim windows vary by carrier and policy form. We produce the inspection documentation for your adjuster or PA to evaluate the coverage question. We are not attorneys and cannot advise you on the claim window, but we can produce a report documenting the damage in a way that supports your adjuster's or attorney's analysis.
How is San Antonio freeze damage different from freeze damage in colder climates?
San Antonio commercial roofs were not designed for freeze conditions because the climate assumption for the region did not include sustained subfreezing temperatures. Roofs in Denver or Chicago are specified with materials and flashing details that accommodate thermal cycling well below 0°F. San Antonio roofs were specified to a climate that rarely saw sustained freezing. That gap between design assumption and actual event is why Uri produced disproportionate damage here compared to what a comparable freeze event would do in a northern climate.
Has your San Antonio commercial roof been inspected for Uri freeze damage?
We inspect the six highest-probability Uri damage locations and document what we find - clean record or repair scope - in writing.
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