General liability is the policy every roofing contract requires and the one fewest contractors have read. It is genuinely broad: it responds when your work injures somebody else or damages property that is not yours. But the value of a liability policy lives in its exclusions, and roofing sits on top of several of them. The claims roofers most expect to be covered — the leak, the callback, the repair to their own work — are frequently the exact ones the form removes. Knowing which is which before you quote a job is the difference between a policy and a false sense of security.
1. Your Own Work Is the Big One
The standard commercial general liability form excludes property damage to your work arising out of it. If you install a roof and the roof itself fails, the cost to tear out and redo the roof is your problem. Liability insurance is third-party insurance: it exists to pay for harm you cause to others, not to guarantee the quality of what you sold.
The distinction that matters is between your work and the damage it causes. The roof you installed leaks. Replacing the defective section is your-work damage and generally excluded. The ruined ceiling, the soaked hardwood floor, the customer's furniture below it — that is damage to other property, and that is what general liability is for.
Roofers consistently underestimate how often the excluded half is the larger number. On a small residential job the resulting damage may be modest and the tear-out significant. This is why warranty reserves and workmanship guarantees are a business decision, not an insurance one: no liability policy is going to fund your callbacks.
2. Faulty Workmanship Is Not a Peril
Related to the above but distinct: general liability is not a performance bond and not a warranty. It does not pay because you did the work badly. What it may pay for is accidental damage that results, and even that is filtered through whether the event qualifies as an occurrence under the policy.
The occurrence question is where a lot of roofing claims quietly die. An occurrence is an accident — something neither expected nor intended. A carrier presented with a claim that reads as predictable consequence of how the work was done will argue there was no accident at all, and therefore nothing for the policy to respond to.
This is not a reason to be cynical about the coverage. It is a reason to understand that the policy is built around unexpected events, and that the way to protect margin against workmanship problems is process, documentation and a repair reserve, not an insurance argument after the fact.
3. The Damage You Were Hired to Prevent
Roofing has a particular problem: the entire purpose of a roof is to keep water out, which means water damage claims are close to the core of what a roofer does. Where water enters through an area you worked on, expect the carrier to look closely at whether the damage flows from your work, from an existing condition, or from an event.
Open-roof exposure during a tear-off is the sharpest version. A roof left open when weather arrives produces interior damage that is neither purely your-work damage nor obviously an accident. How that claim resolves depends heavily on your own documentation: weather forecasts you acted on, tarping records, photographs at end of day. Contractors who photograph the dry-in every evening have a materially easier time than contractors relying on memory.
This is also where the completed-operations part of your policy earns its keep. A leak alleged two years after the job is a completed-operations claim, and if your policy or an additional insured endorsement covers ongoing operations only, that claim finds nothing to respond to.
4. Employees Are Not Third Parties
General liability excludes bodily injury to your own employees arising out of their employment. That exposure belongs to workers' compensation, which is a different policy with a different rating basis. There is no version of a general liability policy that pays your injured roofer's medical bills.
The exposure this creates in roofing is not really about employees at all — it is about people who are treated as subcontractors and are then found, at claim time, to look like employees. A worker with no workers' compensation of their own, working under your direction, using your materials, on your schedule, is exactly the person both a carrier and a state agency will reclassify.
That is the connection between this exclusion and your certificate discipline. The exclusion is uncontroversial. The trouble comes from ambiguity about who is an employee, and that ambiguity is created by paperwork, not by the policy.
5. The Exclusions Nobody Reads Until They Matter
Height and roof-pitch restrictions appear as endorsements on some roofing programmes. A policy written for residential steep-slope work may restrict operations above a stated number of storeys. Working outside that restriction can mean the loss falls outside the policy entirely — and the restriction lives in an endorsement, not on the declarations page.
Subsidence, earth movement and mould are commonly excluded or sub-limited. Pollution exclusions are broader than roofers expect and can be argued to reach solvents, adhesives and torch-down fumes. Where hot work is part of your operations, there may be a separate hot-work warranty imposing conditions — a fire watch, for instance — that must be met for coverage to apply at all.
None of these are unusual or unfair. They are the terms on which the price you were quoted was calculated. The failure mode is not that they exist; it is that most contractors first read them in a denial letter.
6. What General Liability Does Cover, So the Picture Is Fair
It is easy to read a list of exclusions and conclude the policy is worthless. It is not. General liability is the reason a roofer can drop a bundle of shingles through a customer's conservatory roof and not personally fund the rebuild. It pays for bodily injury to members of the public, damage to property that is not yours, and — critically — the cost of defending you, which on a disputed claim is frequently larger than the settlement.
Defence costs are the part contractors overlook when comparing quotes. A policy that defends you outside the limit is worth materially more than one where legal fees erode the limit available to pay the claim. On a long-running construction-defect allegation that difference decides whether you still have coverage left when the case resolves.
The other thing it buys is access to work. Almost every general contractor, property manager and commercial customer requires evidence of general liability before you set foot on site, at limits they specify. In that sense the policy is not only risk transfer; it is a licence to bid the jobs worth having.
7. How to Find Out Before It Matters
Ask your broker for the full endorsement list, not the certificate. The certificate shows limits; the endorsement list shows what has been carved out of them. Every restriction that will ever be applied to you is on that list, in form-number order, and it is a short read.
Then ask three specific questions. Does this policy cover completed operations, and for how long after the work. Are there height, pitch, or hot-work restrictions on my operations. What is excluded that a roofer would expect to be covered. A broker who writes roofing will answer all three from memory.
Finally, match the answers against the work you actually take. A policy that fits residential reroofs is not automatically the policy for the commercial flat-roof job you have been offered, and the moment to find that out is when you are pricing it, not when you are claiming on it.
This article is general information for roofing contractors, not legal or coverage advice. Policy wording, statutes and rating rules vary by carrier and by state — read your own forms and talk through your programme with a broker who writes roofing. Get a quote.