Fire Loss, Coinsurance, and a Contractor's Waiver
Prime Foods insures its warehouse building for P8,000,000 under a standard fire policy with an 80% coinsurance (average) clause and a P100,000 deductible. The building's actual cash value at the time of loss is P12,000,000. On 14 August, a loose connection in a distribution panel installed by Volt Electrical Contractors caused arcing that destroyed the panel (P300,000) and ignited cartons of packaging material; the ensuing fire caused P4,500,000 of additional damage. The policy excludes 'electrical arcing, short circuit, or other electrical failure,' but adds: 'unless fire ensues, and then this policy covers only the loss or damage by fire.' Prime Foods reported the loss promptly and submitted a proof of loss claiming the full P4,800,000. The maintenance contract with Volt, signed before the loss, contains a mutual waiver of subrogation. The insurer has paid nothing and asserts the electrical exclusion defeats the entire claim.
1. Compute the amount payable for the fire damage, explaining how the electrical-panel damage, the 80% coinsurance clause, and the deductible are applied. State any assumptions.
Read the worked answer
Separate the two causes. The P300,000 panel damage was caused by arcing before any fire; the policy's electrical-failure exclusion applies and the 'fire ensues' exception does not restore damage that is not by fire. The P4,500,000 balance is fire damage and is within the exception.
Coinsurance test: required amount = 80% × P12,000,000 = P9,600,000. Sum insured P8,000,000 is below that, so the average clause applies: P8,000,000 / P9,600,000 = 5/6. Apply to the covered fire loss: 5/6 × P4,500,000 = P3,750,000. Then subtract the P100,000 deductible: P3,650,000 payable. (Assuming the deductible applies after the average, as is standard.) The P300,000 panel item is excluded entirely. If the policy were a valued policy or had an agreed-value clause, the average analysis would differ; the facts say actual cash value, so it does not.
2. The insurer denies the whole claim. Evaluate the denial under proximate cause and the fire-follows exception.
Read the worked answer
The denial of the entire claim is not supportable. Property insurance uses proximate cause: the efficient cause of the P4.5M loss was fire, not arcing. The electrical exclusion is a carve-out, not a total exclusion; its own words say that when fire ensues the policy covers 'only the loss or damage by fire.' That language preserves fire damage and excludes the electrical component. The insurer bears the burden of proving the exclusion; ambiguities are construed against the insurer. The correct adjustment is to exclude the P300,000 panel and apply the coinsurance and deductible to the fire damage. A blanket denial also risks being treated as an unfair claims settlement practice. The insurer should issue a partial denial with a written explanation and pay the covered amount.
3. After paying, the insurer demands reimbursement from Volt. Volt cites the mutual waiver. Advise.
Read the worked answer
Subrogation is derivative: the insurer steps into the insured's shoes and takes the claim subject to the defences and prior waivers that bound the insured. The mutual waiver was signed before the loss and covers the contractor's work. If its scope includes fire damage arising from the panel, Volt can plead it against Prime Foods, and therefore against the insurer. The insurer cannot improve its position by paying the claim. The insurer should check whether the waiver is limited to 'construction defects' or excludes willful misconduct; a broad mutual waiver defeats recovery. Commercially, the insurer should have required a waiver-of-subrogation endorsement and priced the risk accordingly. It may still pursue a third party outside the waiver's scope, but not Volt on these facts.