Concurrent Causation and Segregating Damages in Texas

Texas · Homeowners · Claims Education

When more than one cause contributes to a property loss—say wind and flood, or a covered peril plus wear-and-tear—Texas homeowners and commercial policyholders often face a practical question: which dollars are covered, and who has to prove the split? Concurrent causation and anti-concurrent-causation (ACC) language are how many policies try to answer that. This article explains the concepts at a high level so you can read your declarations and forms more carefully. It is educational only, not legal advice, and not an invitation to hire counsel through this site.

Important disclaimer: Freedom Insurance Group is an independent insurance agency. We help clients understand coverages and place admitted markets; we do not provide legal advice, litigate claims, or solicit attorney services. Outcomes turn on your specific policy language, endorsements, facts, and applicable Texas law. For a claim dispute, consult a licensed Texas attorney of your own choosing. Nothing here creates an attorney-client relationship.

Named perils vs open perils (why it matters)

Many dwelling and homeowners forms use one of two approaches for the building (and sometimes for personal property):

• Named perils: The policy lists specific covered causes (for example fire, windstorm, hail, theft). If the cause is not on the list, it generally is not covered.
• Open perils / “all risk” for covered property: The policy covers sudden and accidental direct physical loss unless an exclusion or limitation applies (for example flood, earth movement, wear and tear, or faulty workmanship as the form defines them).

HO-3-style Texas homeowners policies often pair open-perils treatment for the dwelling with named-perils treatment for personal property—confirm your form. Flood is typically excluded from standard homeowners and purchased separately (NFIP or private). Quiet related hubs: Texas homeowners insurance and Texas flood insurance.

What “concurrent causation” means in plain English

Concurrent causation describes situations where two or more causes contribute to the same damage at roughly the same time or in an overlapping sequence. Classic educational examples include:

• Wind removes roof covering (often a covered peril under many Texas HO forms) while floodwater (typically excluded from homeowners) soaks contents
• A plumbing leak (sometimes covered depending on suddenness and form) that also involves long-term rot or mold limitations
• Storm damage mixed with pre-existing wear, poor maintenance, or construction defects that the form excludes

Insurers and policyholders may disagree about which cause is the efficient or predominant cause, whether an exclusion applies to the entire loss, and how much of the repair cost belongs to each cause. That disagreement is where segregation of damages becomes important.

Anti-concurrent causation (ACC) clauses—at a high level

Many property policies include anti-concurrent-causation language. In simplified terms, an ACC clause often says that if an excluded cause contributes to a loss—whether directly or indirectly, concurrently or in any sequence—coverage for that loss may be barred even if a covered peril also played a role. Exact wording varies widely by carrier and edition. Some forms carve back coverage for certain ensuing losses; others do not.

Because ACC wording is form-specific, the only reliable move is to read the exclusions section of your policy (and any endorsements) rather than relying on a general summary. Texas courts have addressed concurrent-cause and segregation issues in published opinions; those holdings are fact- and form-dependent and can change. We do not cite case names here as a litigation roadmap—your counsel and your declarations control.

Why Texas policyholders are often asked to segregate damages

When covered and non-covered causes both contribute, carriers commonly ask for an allocation: how much of the repair or replacement cost is attributable to the covered peril versus the excluded peril or excluded condition. Educational takeaways for documentation (not legal strategy):

1. Photograph and video early: Exterior and interior, room-by-room, with date stamps if available; capture roof, elevations, water lines, and inventory.
2. Separate scopes when possible: Ask contractors and public adjusters (if you hire one) to break out line items by cause—wind vs water, sudden leak vs long-term deterioration—so the estimate itself supports segregation.
3. Keep weather and maintenance records: Storm reports, prior repair invoices, and roof age help show what was pre-existing versus storm-created.
4. Read flood vs wind carefully: Standard homeowners usually exclude flood; wind/hail may be covered subject to deductibles (sometimes percentage deductibles in coastal or high-risk territories). Know which policy responds to which dollars.
5. Do not invent percentages: Guessing “100% covered” without a supportable basis is a weak approach. Honest segregation supported by evidence is the educational goal.

Practical steps after a mixed-cause loss

• Report the claim promptly under the timelines in your policy; missing notice provisions can create separate problems.
• Mitigate further damage when safe (tarp, water extraction) and keep receipts—many forms require reasonable mitigation.
• Provide the carrier’s adjuster access and a clear inventory; ask in writing which exclusion or ACC language the carrier is relying on if coverage is limited.
• Compare the denial or partial payment letter to your form’s exclusions, deductibles, and ordinance-or-law limits.
• If you disagree with the allocation, Texas appraisal, mediation, or other remedies may exist under the policy or statute—those paths are case-specific; ask a licensed Texas attorney if you need legal advice.

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