How Your Roof Condition Affects Insurance Claims
Roof damage is the most common commercial property claim we see, and the roof is the part of a building an insurer looks at hardest when a claim lands on its desk. Consolidated Insurance Brokers wrote this guide so you know, before you ever lodge a claim, exactly where the line sits between a payout and a refusal, and how to keep your claim on the right side of it. Most owners only learn these rules the expensive way, in a decline letter. You do not have to.
Does insurance cover roof leaks?
Quick answerDoes commercial property insurance cover roof leaks? Sometimes. Sudden, storm-driven damage, such as hail, wind or impact, is covered, including the internal damage that leak causes, even when the roof itself is declined. Gradual deterioration, wear and tear, rust, or a roof you already knew was failing, is not. Insurers pay on the cause, not the leak itself. The full line between those two is what the rest of this guide covers.
In short: a storm that tears through the roof is a claim, and the ceiling and stock it ruins on the way in usually get paid too. A roof that simply wore out and finally let go is not, because every commercial policy carries a wear-and-tear exclusion. The next section sets out exactly where insurers draw that line, and the one after it covers what they look for to prove it.
When does insurance cover a roof leak, and when is it refused?
It comes down to the cause. If the leak comes from a sudden insured event, such as a storm, hail or fire, it is a claim. If it comes from rust, age or gradual deterioration, that is maintenance, and every commercial policy excludes it. The internal damage a leak causes is often paid even when the roof itself is declined.
Insurers draw one line above all others: sudden versus gradual. A storm that lifts sheeting, hail that punches through it, or a tree through the roof are sudden, identifiable events, and that is what your policy is built to pay for. Rust that ate through the steel over five winters, seals that perished, flashing that slowly worked loose: that is the building ageing, and insurers treat it as upkeep you were always going to have to fund.
You cannot borrow the rules from your home policy here. Commercial roofs are large, mostly flat or low-pitched, and expensive, and hail is a genuine commercial peril, not just a household one. In the January 2020 hailstorms the average commercial property claim ran to about $69,069, more than four times the average home building claim, according to the Insurance Council of Australia. When a commercial roof goes, the numbers are serious, which is precisely why insurers scrutinise the cause so hard. For the short version of what a policy does and does not cover, see our commercial building insurance page. This article is about what happens next: the claim.
What does a "wear and tear" or "gradual deterioration" exclusion actually say?
Every commercial policy carries a wear-and-tear or gradual deterioration exclusion. It says the insurer will not pay to fix the part that simply wore out. But most wordings then add a write-back: damage that the failure causes to other property can still be paid, which is why the roof gets declined and the soaked stock underneath it does not.
Open almost any Australian commercial property wording and you find the same clause. The standard wording used across the market excludes loss or damage caused by "wear and tear, fading, scratching or marring, gradual deterioration or developing flaws, normal upkeep or making good," alongside rust and oxidation. Translated: the insurer will not pay to replace the part of your building that reached the end of its life. Every commercial policy has a version of this, because insurance is built to cover sudden accidents, not the maintenance every owner takes on when they buy a building.
Here is the part most owners never hear about. The same wordings usually add a write-back. The exclusion, one common business wording says, applies only to "the items immediately affected" and does "not apply to damage to other property occasioned by a peril not otherwise excluded." In practice: if a worn-out roof lets water in during a storm, the insurer can decline the roof itself while still paying for the soaked stock, the ruined ceiling and the fitout beneath it.
That split is real, and the complaints authority enforces it both ways. In a June 2025 determination (case 12-00-1092678, a home-building policy that AFCA decided under the same claims-handling approach it applies to small-business property), the insurer had to repair storm-caused internal water damage, plus a 15% contingency and $5,000 towards the owner's expert costs, but was "not required to undertake any repairs to the roof" because the roof's condition was not storm damage. And there is a sting in the tail: once that first claim tells you the roof leaks, the next lot of water damage is usually declined too, because now you knew and did nothing.
How do insurers know what condition my roof was in?
More often than you would think. Insurers and their assessors increasingly review dated aerial imagery and AI roof-condition analysis before they pay, on top of any site inspection. They are looking for rust, ponding water, patched repairs and blocked box gutters, the tell-tale signs that a problem was there long before the storm you are claiming for.
Aerial imagery cuts both ways, and right now it mostly cuts against the unprepared owner. Imagery providers such as Nearmap market to insurers well over a hundred AI-derived property insights, including roof-condition scores, plus post-event aerial capture that lets an assessor classify damage within a day or two of a storm. National datasets such as Geoscape feed insurers roof attributes and flag property changes at renewal. In other words, your insurer may hold a dated photographic history of your roof before you ever lodge a claim.
On the ground, a claims assessor is trained to spot the signs that a problem predates the event: rust bleeding from fixings and laps, ponding water and the staining it leaves, patch repairs that mark a known weak spot, and blocked or overflowing box gutters. Any of those lets the insurer argue the damage was gradual, not sudden. The lesson is simple. If the insurer is going to arrive at the dispute with dated imagery of your roof, you need dated evidence of your own that tells the true story.
How do you prove a roof claim when the insurer blames wear and tear?
Evidence does the work. You have to show a sudden event was the main cause of the damage; the insurer then has to prove any wear-and-tear exclusion it wants to rely on. If its evidence is not persuasive, the Australian Financial Complaints Authority has said the insurer will likely have to pay. Dated maintenance records and photos are what tip that balance your way.
When a roof claim is contested, the outcome usually turns on one rule almost nobody explains: who has to prove what. You show that a sudden insured event was the dominant cause. The insurer then has to prove any exclusion it relies on. According to the Australian Financial Complaints Authority, if the only ground raised is a wear-and-tear exclusion and the evidence for it is not persuasive, the insurer will likely have to pay the claim. In a December 2024 determination (case 12-24-105645, again a home-building policy decided under AFCA's general claims-handling approach), an insurer's engineering report was rejected because it leaned on assumed dates and unverified measurements, and the claim was ordered to be accepted.
So what makes your case persuasive? Contemporaneous, dated records: a gutter-cleaning contract, roof inspection reports, invoices for past repairs, and photos taken before the damage. The General Insurance Code Governance Committee found in its 2023 claims review that denied claims were most often overturned where the damage would have happened regardless of any maintenance issue, or where the owner could not reasonably have known about the defect. Records are what put you in one of those categories.
The timing tells you the stakes. Queensland's hail seasons are brutal and they hit commercial buildings hard. The 31 October 2020 Halloween hailstorm drove more than $1.05 billion in insured losses from about 44,700 claims, and the November 2025 Queensland and NSW severe storm and hail event (ICA CAT255) had reached about $2.1 billion from about 94,000 claims across both states, as at June 2026, according to the Insurance Council of Australia. After every one of those events, insurers assess a wave of roof claims at once, and the well-documented roof is the one that clears fastest.
How can you find roof problems before your insurer does?
By checking it yourself, on a schedule, and fixing problems before they grow. We run more than 1,200 roof condition checks a year for clients, reviewing Nearmap imagery alongside each desktop building replacement valuation, and when we spot rust, ponding or a failing gutter, you get a Roof Condition Alert naming the exclusion an insurer would cite to decline you.
That is the whole idea: you fix a problem on your terms, not discover it in a decline letter. You hear about it from us first, while it is still a maintenance job and not a claim.
You can check your own roof against these warning signs in about two minutes.
The economics are lopsided, and that is the point. A patch repair caught early can be a few thousand dollars; the same failure left to cause a storm-season water claim can become a six-figure loss the insurer then declines as wear and tear. Prevention is not just cheaper here, it is often the difference between a claim that pays and one that does not.
There is one more trap worth naming. Even when the insurer accepts a roof claim, underinsurance can still cut what you receive. On a partial loss, the co-insurance clause scales your payout down in proportion to how far your sum insured sits below the level the clause requires, commonly at least 80% of the true rebuild cost. On a total loss you are paid the full sum insured, but every dollar between that figure and the real rebuild cost is yours to find. We explain both cases in full in our co-insurance clause guide and underinsurance guide. It is why we commission a desktop valuation at no cost to you, so the number on your policy is a registered valuer's desktop assessment, not a guess. We arrange that valuation for our purposes as your broker, to inform the advice we give you. See how it works on our desktop building replacement valuation page.
Ask for a roof condition check on your building
What should you do if your roof claim has already been refused?
Do not accept it at face value. Ask the insurer, in writing, for its decision and every report it relied on, check the exclusion it cited against what actually caused the damage, gather your maintenance records and dated photos, and have a broker review the decline before you sign anything or walk away.
A decline is not automatically the end of the road. Under the General Insurance Code of Practice, if your claim is refused the insurer has to tell you in writing which parts it will not pay and why, and that you have the right to ask for the information and any assessor or expert reports it relied on. Ask, and it has 10 business days from your request, not from the day it declined you, to hand them over. Read what comes back against reality: does the exclusion it cites actually match what caused the damage? If the report is thin, remember the onus rule from earlier.
Then use the process. Lodge an internal complaint, which the insurer must resolve within 30 calendar days. If you are not satisfied, businesses with fewer than 100 employees can take the dispute to the Australian Financial Complaints Authority free of charge, with compensation capped at $631,500 per claim. It is worth doing. In a September 2025 determination, AFCA overturned a wear-and-tear roof decline and awarded the maximum $631,500 after finding the damage was accidental. That one was a home-building policy, but AFCA applies the same claims-handling approach to small-business property complaints. Where AFCA finds a decline unfair, cash settlements typically carry a 10% to 20% uplift, and up to $5,000 of your expert costs can be reimbursed.
There is a catch worth knowing before you rely on any of the above. The Code's tight timeframes for written reasons and reports only bind what it calls Retail Insurance, and that is not just a size test. Retail Insurance means a defined list of product classes, broadly home, motor, travel and personal or domestic property, held by an individual or a small business. Commercial property and business pack cover, the policy behind your roof claim, sits outside that list, so you cannot assume those specific Code timeframes bind your insurer just because you are a small business. What you actually rely on instead is the insurer's general legal duty to handle your claim fairly and honestly, the internal complaint process above, and a broker who holds the insurer to that duty. Separately, the industry's Code Governance Committee found that nearly half of the denied home-insurance claims customers formally disputed in 2021 to 2022 were resolved in the customer's favour, a sign of how often a challenged decline does not hold, though that is a home-insurance figure, not a commercial one. If your roof claim has been knocked back, send it to us for a second read before you accept it. Here is what a broker does at claim time.
Frequently asked questions
Does the age of my roof affect whether a claim is paid?
Not directly. There is no rule that a roof over a certain age is uninsurable, despite what you may read online. Insurers pay on the cause of the damage, not a birthday. A well-maintained 25-year-old roof damaged by a storm is a claim; a neglected 8-year-old roof that rusted through is not.
The "roofs over 20 years are not covered" line you see on some sites is folklore, not policy wording. Age matters only because older roofs are more likely to show the wear and tear that lets an insurer decline, and because an insurer may add conditions or charge extra (a loading) at renewal for an ageing roof. The answer is condition, not youth: a documented, maintained roof holds its cover at any age.
Can an insurer refuse my claim just because I hadn't maintained the roof?
Not automatically. A general condition to take reasonable care to prevent damage is only breached by genuine recklessness, where you recognised a real danger and ignored it, not because your maintenance was less than perfect. A separate wear-and-tear exclusion is a different thing again, and turns on what actually caused the loss.
Australian courts read "reasonable care" conditions narrowly, so imperfect upkeep is not enough on its own. The law also limits technical declines: an insurer generally cannot refuse a claim over something you did or did not do after taking out the policy unless that act or omission could have caused or contributed to the loss. This is genuinely grey ground, so if lapsed maintenance is the stated reason for a decline, get it reviewed rather than accepting it.
Does storm damage automatically mean my roof claim gets paid?
No. A storm has to be the dominant cause of the damage, not just present on the day. Where a storm and long-standing deterioration both contribute to the same failure, and the insurer can prove it, the claim can still be declined. Storm involvement helps your case, but it does not guarantee it.
Insurers weigh the proximate, or dominant, cause. If your roof was already failing and a storm finished it off, the insurer may argue the deterioration was the real cause. The counter is evidence that the roof was sound before the event, which brings you back to dated inspections and photos. Be wary of any adviser who promises a storm claim is a sure thing.
Are emergency or make-safe roof repairs covered after a storm?
Usually yes, where the underlying damage is from an insured event. Most commercial policies pay for reasonable temporary repairs that prevent further damage, such as tarping a roof after a storm. Keep the invoices and dated photos, and tell your insurer before you commit to anything beyond making the site safe.
Make-safe work protects both the building and your claim, and stopping further water getting in is also part of taking reasonable care. The key is to document the damage before you cover it up: photograph the failure, keep the tradesperson's report, and hold the receipts. Do not authorise full permanent repairs before the insurer has assessed the loss, or you risk an argument about scope and cost.
Will insurance pay for the mould and water damage inside if my roof was already worn out?
It can. In a published determination, the Australian Financial Complaints Authority held that where a storm was the most likely cause of the water getting in, the water damage and the mould that followed were a result of that storm rather than wear and tear. Whether your own claim responds depends on your policy wording and on the evidence of what caused the water to get in.
In that determination, a storm drove water into the home, and the moisture that got trapped inside turned to mould. No one could point to an obvious hole, and AFCA held the owner did not have to prove one: it was the insurer's job to show the water did not come in through an opening the storm created, and it could not. The insurer accepted the claim, then reversed its decision, arguing the mould was gradual deterioration. Its own builder had noted the roof had no sarking and no insulation, and AFCA accepted that, then said it cut the other way: with no sarking or insulation, a storm would not have to open the roof for long, or in many places, to do that much damage. The mould was what happened once the storm let the water in, and there was no persuasive evidence that deterioration had caused the water to get in at all. The insurer was ordered to remediate the mould and not simply patch the leak, though not to pay for the building's structural movement damage, which the evidence did not link to the storm. That was a home and contents policy, but AFCA applies the same claims-handling approach to small-business property complaints.
The practical lesson sits in the word "evidence". The insurer's case failed because it could not prove the deterioration caused the water in, and the evidence that decided it was the insurer's, not the owner's: once storm damage is established, the insurer is the one that has to prove an exclusion applies. Photos of the property before the storm still help, because they close the argument off early. Documenting and dating storm damage gives an insurer far less room to argue slow decay later, and it is the cheapest thing an owner can do.
Your roof is the claim most likely to be tested on condition, and in our experience the one most often refused for it. The owners who win these arguments are the ones who saw the problem coming. Let us watch your roof so the insurer's imagery is never the only version of events.