Roof Flashings in Wind Damage Claims: What Roofers and Public Adjusters Need to Know

Flashings are one of the most reliably disputed line items in wind damage claims. The carrier's estimate says they can be reused. The contractor's or public adjuster's estimate says they have to be replaced. The insured is caught between two positions that both sound reasonable — and the dispute often goes unresolved because neither side fully documents its reasoning.

This article explains what flashings are, why the dispute arises, what the major shingle manufacturers say about replacement requirements, and how appraisal can resolve disagreements that can't be settled at the desk level.

What Are Roof Flashings and What Do They Do?

Flashings are the sheet metal components installed at every transition point on a roof system: where the roof deck meets a wall, chimney, dormer, skylight, or valley. Their job is to seal these vulnerable intersections where two different planes or materials meet — places that shed water differently than the open field of shingles.

Because they sit at joints and penetrations, flashings absorb stress that the shingle field doesn't. They're bent, fastened, and sealed into position. Over time — and especially under wind loading — they move, crack, lift, and separate. When a storm comes through, these are often the first components to show damage, and they're also among the first items carriers attempt to exclude from the covered scope.

Wind creates three types of flashing problems relevant to a claim:

Direct wind damage — Sustained wind or gusts can lift, separate, or displace flashings from their sealed or embedded positions. Step flashings installed into mortar joints can pull free. Counterflashings embedded in chimney reglets can crack at the sealant line. Cap flashings can be peeled back entirely.

Damage during shingle removal — When shingles are removed for replacement, step flashings are disturbed whether they're being reused or not. The removal process typically involves working beneath the flashing tabs, breaking existing sealant bonds, and moving the metal. This process can bend, kink, and distort the metal — particularly flashings that have been in place for years and are less flexible than new stock.

Incompatibility with new roofing — Manufacturer installation instructions for laminated architectural shingles (the standard in most Texas replacements) specify new flashings as part of a compliant installation. Existing step flashings sized for three-tab shingles have different step heights and don't properly align with the thicker profile of laminated shingles.

Four Types of Flashings at Issue in Wind Damage Claims

Step Flashings

Step flashings are individual L-shaped metal pieces installed one per shingle course along a roof-to-wall intersection — a dormer, sidewall, or addition tie-in. Each piece overlaps the one below by at least 2 inches and is woven into the shingle courses as the field is laid.

A central point of contention in these disputes: step flashings cannot be properly inspected or reused without removing the adjacent shingles. A carrier adjuster performing an exterior inspection cannot determine whether step flashings are damaged, corroded, improperly lapped, or incompatible with the new shingle profile without destructive investigation. When a carrier writes "reuse existing step flashings" on a repair estimate, that's a scope assumption — not a documented condition finding.

Contractors and public adjusters argue that when the shingle field is replaced due to wind damage, step flashings along sidewalls, dormers, and addition tie-ins are almost universally required to be replaced per manufacturer installation guidelines.

Counterflashings and Cap Flashings

Counterflashings (also called cap flashings) are the upper metal component at chimney or wall intersections that overlaps the base flashing or step flashings below. They're typically embedded in mortar joints or mechanically fastened to masonry, then sealed with roofing caulk or elastomeric sealant.

Wind damage to counterflashings is common and often visible: cracked sealant, separated metal, lifted edges. Carriers frequently characterize visible sealant cracking as a maintenance issue rather than storm damage — even when the same storm caused the shingle damage being replaced.

Contractors and public adjusters typically counter that sealant separation following the joint line (consistent with uplift) is different from surface oxidation or general weathering. Metal distortion or separation from the reglet is not a maintenance pattern. If the storm was strong enough to lift shingles off the field, the argument goes, it was strong enough to stress flashing seals.

Chimney Flashings

Chimney flashings are a two-part system: base flashings that run up from the deck onto the chimney face, and counterflashings that overlap them from above. Large chimneys also use a saddle (cricket) — a peaked structure behind the chimney that prevents water from pooling.

Chimney flashings are expensive — often $400 to $1,200 or more depending on chimney size and material — which makes them a frequent source of dispute.

The carrier's position is typically that the base flashing is embedded under shingles and wasn't directly wind-damaged, and that counterflashings showing sealant cracking can be resealed rather than replaced.

Contractors and public adjusters argue that when the surrounding shingle field requires replacement, chimney flashings must be removed to permit proper installation of new shingles, and that manufacturer requirements call for new flashings as part of a compliant installation. Once base flashings are removed from the deck, reinstalling used metal is not a manufacturer-compliant practice. Under this view, the cost of the flashings is part of the covered loss — not an upgrade.

Valley Flashings

Open metal valleys are sealed to the deck before shingles are installed. When wind damage requires replacement of shingles on one or both sides of a valley, the valley flashing typically must be replaced — new shingles cannot be properly woven into or cut against an existing valley without disturbing the metal and breaking the installation sequence.

Closed-cut and woven valleys using shingles rather than metal have their own manufacturer requirements, but the principle is the same: the shingle replacement scope determines whether the valley component must be replaced. If the scope includes the adjacent field, contractors and public adjusters argue the valley is part of that scope.

What Shingle Manufacturers Actually Say

The major roofing manufacturers publish installation instructions that govern both warranty compliance and industry-standard installation practice. These documents are central to how contractors and public adjusters build the case for flashing replacement.

GAF (TimberlineHD, Timberline HDZ, and related products): GAF's application instructions require new step flashings when their products are installed adjacent to vertical surfaces. GAF does not recognize reinstallation of existing step flashings as a compliant installation for warranty purposes. Their specs call for 28-gauge galvanized step flashings sized to the specific shingle profile.

Owens Corning (Duration, TruDefinition): Owens Corning's installation guides specify new step flashings as part of a compliant installation with their laminated shingle lines. Their published requirements note that step flashing must be sized to the shingle exposure — which differs between three-tab and architectural products.

CertainTeed (Landmark, Presidential): CertainTeed's installation instructions explicitly state that existing step flashings designed for three-tab shingles are not appropriate for use with laminated architectural shingles due to the difference in shingle thickness and step height. New flashings are required for a compliant installation.

Atlas (StormMaster Slate, Pinnacle Pristine): Atlas's roofing specifications follow the same pattern — new step flashings per shingle profile are specified for compliant installation.

In each case, the manufacturer's warranty is contingent on installation in accordance with published instructions. An installation that reuses existing step flashings from a prior three-tab system is non-compliant under the new product's warranty requirements.

These are published specifications, not contractor interpretations. Contractors and public adjusters who cite them directly in claim documentation — by product name and publication date — are presenting factual manufacturer requirements, which carriers must address rather than simply disagree with.

Carrier's Position vs. Contractor/Public Adjuster Position

Understanding both sides of this dispute matters for anyone working in or through claims.

The carrier's argument is that if flashings show no direct wind damage and were functional before the storm, replacement isn't necessary to restore the roof to pre-loss condition. Carriers typically maintain they're only obligated to repair what the storm broke — not to replace components that were still working.

The contractor/public adjuster counter-argument is that when a covered wind event requires replacement of the shingle field adjacent to flashings, the installation scope triggers manufacturer requirements for new flashings as a component of a compliant roof system. The question isn't only whether the flashing itself was wind-damaged — it's whether a compliant installation of the covered replacement scope can be completed while reusing existing flashings. Per every major manufacturer, the argument goes, it cannot.

Under this framing, the carrier is not entitled to a non-compliant installation just because it's cheaper. If the manufacturer requires new flashings as part of a code-compliant, warranty-valid installation of the covered scope, the cost of those flashings is part of the loss.

The inspection problem: Carrier adjusters performing exterior-only inspections typically cannot assess step flashing condition without removing adjacent shingles. When a carrier writes "reuse existing step flashings" without direct inspection, contractors and public adjusters argue that finding should be characterized as an assumption rather than a documented determination — and challenged accordingly.

The Core of the Disagreement

The real dispute is this: carriers treat flashings as separate damaged components that require independent proof of wind damage. Contractors and public adjusters treat them as required components of a compliant re-roofing installation that's already been triggered by the covered loss.

Both framings have some validity, which is why the dispute persists. The manufacturer specifications offer a way through: once the installation scope is established, the manufacturer's requirements determine what components are necessary for a compliant installation. Under that logic, those components are part of the loss.

What moves these disputes toward resolution is documentation. A general assertion that "flashings must be replaced" is easy to dismiss. A documented manufacturer requirement tied to the specific product being installed and the specific installation scope is harder to dispute — and provides a factual basis for appraisal if the disagreement can't be resolved at the desk.

When Appraisal Is the Right Tool

Flashing disputes that can't be resolved at the desk level are well-suited to the appraisal process because the disagreement is almost always about scope, not coverage. There's typically no question a storm occurred. The dispute is whether the damage scope, properly documented against manufacturer requirements, includes the flashing components.

That is exactly what the appraisal clause is designed to resolve.

At the appraisal stage, the documentation that tends to carry weight includes:

• Manufacturer installation instructions cited by product name and publication date
• Photographs of existing flashings showing condition, profile, and size relative to the new shingle product
• A written contractor assessment of whether reuse is possible under manufacturer requirements
• Xactimate line items tied to the adjacent shingle scope that triggers the flashing requirement

Appraisal umpires are generally not persuaded by general contractor preference. They respond to documented manufacturer requirements connected to the specific product and installation scope. A manufacturer's installation guide with the relevant section flagged and connected to the documented scope gives an umpire something concrete to evaluate — and typically advances the dispute toward resolution.

A Balanced Assessment

Flashings aren't always a clear-cut replacement item. If the wind damage is limited to a small repair area and the adjacent flashings are in good condition and compatible with the repair shingles, reuse may be appropriate. The manufacturer replacement requirements apply most directly when the scope involves full or near-full replacement with a product that specifies new flashings for compliant installation.

The strongest claims are those where the replacement scope, the manufacturer specifications, and the physical condition of the flashings all point in the same direction. Claims that document all three — measurements, photographs, and specific manufacturer citations — give carriers a factual basis for conceding the scope and give appraisers or umpires a clear record to evaluate if the dispute escalates.

Carriers are right to scrutinize flashing claims when they're unsupported. When they are supported — with measurements, photographs, manufacturer specs, and a clear connection between the flashing scope and the covered replacement — the basis for exclusion becomes much harder to sustain.

Rene Goodall is a Texas Licensed Independent Adjuster with 1,000+ valuations completed nationally, specializing in roof disputes, wind and hail claims, and appraisal panel negotiations. If you have a flashing scope dispute or are heading into appraisal on a Texas wind claim, contact REG Consulting to discuss your options.