2.1 Causes of Loss / Named-Peril vs. Open-Peril

Causes of Loss and How Coverage Is Triggered

A peril is the cause of a loss (fire, windstorm, theft). A hazard is a condition that increases the chance or severity of a peril (oily rags = physical hazard; arson for profit = moral hazard; carelessness from over-reliance on insurance = morale hazard). The exam tests this chain constantly: hazards are not perils, and the policy never pays for a hazard — it pays for the loss the hazard helped cause.

Property policies define what is covered through one of two structures. The distinction between them — and which party carries the burden of proof — is one of the most heavily tested ideas on the national portion.

Named-Peril vs. Open-Peril

Under a named-peril form, coverage applies only to the perils specifically listed. The insured must prove the loss was caused by a listed peril. ISO standardizes these triggers through the Causes of Loss forms:

• Causes of Loss – Basic Form (CP 10 10) — named perils: fire, lightning, explosion, windstorm/hail, smoke, aircraft/vehicles, riot/civil commotion, vandalism, sprinkler leakage, sinkhole collapse, volcanic action. (Mnemonic: WCSHAVVERS + fire/lightning/explosion.)
• Causes of Loss – Broad Form (CP 10 20) — Basic perils plus falling objects, weight of ice/snow/sleet, water damage (accidental discharge), building glass breakage, and collapse (as an additional coverage).
• Causes of Loss – Special Form (CP 10 30) — open-peril (“all-risk”): covers risk of direct physical loss unless excluded. The insurer must prove an exclusion applies to deny a claim.

Open-peril is the broadest and most expensive structure precisely because it shifts the burden of proof to the carrier.

Comparing the Two Structures

Trap: Many candidates assume open-peril = covers everything. It does not. Standard exclusions (flood, earth movement, war, wear and tear, ordinance or law, nuclear hazard, intentional acts) survive under Special Form too — “open-peril” only flips the burden of proof, it does not erase exclusions.

Proximate Cause and Concurrent Causation

Property insurance pays when a covered peril is the proximate cause — the unbroken chain of events leading to loss. If fire (covered) causes a water-line burst and resulting water damage, both are covered because fire set the chain in motion.

Anti-concurrent-causation (ACC) language in modern forms states that if an excluded peril (e.g., flood or earth movement) contributes to a loss — in any sequence, with or without a covered peril — the entire loss is excluded. This is why hurricane wind (covered) plus storm surge (excluded flood) litigation turns on ACC wording.

Direct vs. Indirect Loss and Why It Matters

Property coverage separates direct loss (physical damage to the property itself — the burned building) from indirect (consequential) loss (the financial fallout — lost business income, extra expense, additional living expense while the building is unusable). Standard property forms cover direct loss; time-element coverage (business income, ALE) must be added or built in to capture the indirect loss.

Trap: a named-peril form that covers fire as a direct loss does not automatically pay lost income — that consequential loss requires time-element coverage triggered by a covered direct loss.

Exam Tactics for Cause-of-Loss Questions

When a question describes a loss, work through this checklist: (1) Identify the structure — is the form named-peril (Basic/Broad) or open-peril (Special)? (2) Locate the burden of proof — named-peril puts it on the insured; open-peril puts it on the insurer. (3) Screen for exclusions that survive even under open peril. (4) Check anti-concurrent-causation language if an excluded and a covered peril combine.

Classic distractors and how to beat them:

• "Open peril covers everything." False — exclusions (flood, earth movement, war, wear/tear, ordinance/law, nuclear, intentional acts) remain.
• "Theft is covered under the Basic commercial form." False — commercial Basic/Broad omit theft; it appears in the Special form.
• "A hazard is a peril." False — the policy never pays for a hazard; it pays for the loss the hazard contributed to.
• "Resulting water damage from a covered fire is excluded." False — fire is the proximate cause and sets a covered chain in motion.

Mastering this sequence — structure, burden, exclusions, causation — lets you answer most property-trigger items quickly and correctly.

Quick Recap of the Causes-of-Loss Framework

Before answering any property-trigger question, run the sequence: identify the structure (named-peril Basic/Broad versus open-peril Special), locate the burden of proof (insured under named-peril, insurer under open-peril), screen for surviving exclusions even under open peril, and apply anti-concurrent-causation when an excluded and a covered peril combine.

Keep the peril-versus-hazard chain straight: a hazard increases the chance or severity of a peril but is never itself paid. The Basic form omits theft and water damage; the Broad form adds them plus collapse; the Special form flips the burden to the insurer. These reference points resolve the large majority of cause-of-loss items.