Commercial property policies vary far more than homeowners policies, but the same principle runs through them: sudden damage from a covered peril is usually covered, and wear and neglect usually are not. What differs is everything built around that principle, because commercial forms are assembled from endorsements and negotiated at renewal rather than sold off a shelf.
That has a practical consequence. Two buildings on the same street can carry the same policy limit and settle a roof loss very differently, because one has a surfacing limitation attached and the other does not. On commercial property the endorsement list matters more than the headline cover.
Terms to check in a commercial policy
- Valuation: replacement cost, actual cash value, or agreed value
- Deductibles: flat, percentage, or separate wind, hail and named storm deductibles
- Roof surfacing limits: some policies settle the covering separately or exclude cosmetic hail damage
- Coinsurance: a reduction in payment where the building is insured for less than the required share of value
- Business income: cover for lost income and extra expense while repairs are carried out
- Ordinance and law: the cost of meeting a current code on a replacement, which on a commercial roof can be substantial
- Protective safeguards and maintenance conditions: requirements you must meet for cover to respond
Ask your broker for the endorsement forms, not just the schedule. The schedule names them. The forms say what they do.
Where commercial differs from a home
| Issue | What is different |
|---|---|
| Roof systems | Low slope membranes, built up and single ply systems fail differently from steep slope coverings, and are inspected differently |
| Valuation | Agreed value and coinsurance have no real equivalent in a homeowners policy |
| Code upgrades | Commercial replacements frequently trigger insulation, drainage and wind uplift requirements |
| Income | A damaged roof can stop trading, which is its own head of cover |
| Responsibility | A lease may place the roof with the tenant rather than the owner |
The code point catches owners repeatedly. A membrane replaced to a current code can cost considerably more than the one it replaces, and without ordinance and law cover that difference is yours.
Maintenance is usually a condition, not a courtesy
Commercial policies and manufacturer warranties both tend to require inspection and upkeep, and both can be defended on the basis that neither happened. Drains and scuppers blocked, ponding left standing, flashings and laps unchecked, equipment penetrations resealed by whoever serviced the plant: each of these is a familiar reason for a claim to shrink.
A written maintenance program with dated reports is the evidence that answers it. Twice yearly inspections and a walk after significant weather are a common pattern.
Documentation that helps
- Dated inspection reports with photographs, held for the life of the roof
- Maintenance and repair records, including who did the work
- Roof age, system type, manufacturer and warranty documents
- Moisture survey or condition reports where you have them
- Photographs taken soon after a storm, before any repair
After a storm
- Make the building safe and protect it from further damage, keeping receipts for emergency work
- Photograph everything before anything is moved or covered
- Notify the insurer within the time your policy requires, and confirm it in writing
- Get an independent roof inspection to record the damage and its cause before repairs begin
- Keep a log of every call, with dates and names
- Track trading losses from day one if you carry business income cover
An independent inspection carried out before the repair is the single most useful document in a commercial roof claim, because it fixes the condition of the roof to a date.
Questions to ask before renewal
- How is the roof covering settled, and is a surfacing limitation or cosmetic damage exclusion attached?
- What is the wind, hail or named storm deductible in dollars at the current building limit?
- Does the policy carry a coinsurance percentage, and when was the insured value last reviewed against current construction costs?
- Is ordinance and law cover included, and at what limit?
- What maintenance or inspection conditions must be met for the roof to be covered?
Put the questions to the broker in writing and keep the answers with the policy. On commercial property the renewal conversation is where terms are decided, and a roof file that is ready before the submission goes out gives you something to negotiate with.
Next step
Read how policy terms such as valuation, depreciation and deductibles decide a payout, and how the general rules on coverage separate a covered event from wear.
This guide is general information, not legal, financial or insurance advice. Your policy, your lease, your carrier and your state’s rules decide your situation.
Common questions
What is a roof surfacing limitation on a commercial policy?
It is an endorsement that settles the roof covering differently from the rest of the building, usually at actual cash value or under a schedule that reduces payment as the membrane ages.
- It applies even where the policy is otherwise written at replacement cost
- Some versions also exclude cosmetic damage
- Check the endorsement list on your declarations page
- They often arrive at renewal without a conversation, and the limit does not change
- What changes is the arithmetic on the part most likely to be damaged
Ask your broker which endorsement is attached and for a copy of the form, what a full membrane replacement would settle at given the age of the roof, and what it would cost to remove the limitation. If the buyback is unavailable, the difference becomes a reserve you have to fund.
Who pays for roof repairs, the landlord or the tenant?
The lease decides it, not the insurance policy. In a full repairing or triple net lease the tenant often carries the cost, while in a gross lease the landlord usually retains the roof.
- Read the repair, insurance and casualty clauses together, because they often disagree
- What does the lease define as the roof: membrane, membrane and deck, or structure
- Who insures the building and who is named on the policy
- What happens to the rent while the premises are unusable
- Who carries a replacement, which some leases treat as a landlord capital item
Disputes surface after a storm, when both parties read the same clause differently and neither has documented the condition of the roof beforehand. A dated inspection report held by both sides removes most of that argument, and genuinely ambiguous wording is a question for a property lawyer before the loss rather than after.
Does business interruption insurance cover lost income after roof damage?
It can, where the interruption follows physical damage from a covered peril and your policy includes business income cover. It does not respond to damage the property policy itself does not cover.
- It replaces income you would have earned during the period of restoration
- Subject to the waiting period, the limit and any coinsurance in the form
- The period of restoration is the time a rebuild should reasonably take
- Extra expense cover pays for temporary premises or overtime to keep trading
- Insurers work from records, so keep accounts, filings, payroll and unfilled orders
Start a contemporaneous log the day the damage occurs. Delays caused by permits, material lead times or code upgrades are common on roofs, so ask your broker what the policy does when the restoration runs past the defined period.
What is coinsurance and how can it reduce a roof payout?
Coinsurance is a condition requiring you to insure the building for at least a stated share of its replacement cost. If the limit falls below that share, the insurer reduces the payment in proportion.
- The reduction applies to partial losses such as a damaged roof, not only total ones
- Construction costs move and insured values often do not
- A limit set years ago can breach the condition without anyone noticing
- Nothing on the declarations page warns you
- Review the insured value yearly against current replacement cost, not market value
A quantity surveyor, a broker valuation service or a contractor cost estimate all give a defensible basis. Ask whether the policy carries a coinsurance percentage, whether an agreed value option is available that suspends the condition, and what evidence of value the insurer needs, and ask the same of any business income form.
What roof documentation do commercial underwriters ask for?
Usually the age of the roof, the system type and manufacturer, the date and scope of the last replacement or major repair, any warranty still in force, and evidence of a maintenance program.
- Older or larger buildings may also need an inspection report, moisture survey or condition rating
- Keep installation records, warranties, annual reports, photographs and repair invoices
- That file answers underwriting questions at renewal and the neglect argument later
- Missing records are read as missing maintenance
- Detail that helps: deck type, insulation and attachment, layers, drainage, equipment
Ask your broker what your carrier expects before renewal rather than during it, and whether it gives credit for a documented maintenance program or a recent replacement. Where a survey identifies defects, record what you fixed and when, because that record is worth more than the survey itself.