COMMERCIAL ROOFING JOBS: WHY YOU NEED MORE COVERAGE THAN YOUR AVERAGE POLICY PROVIDES

Moving from residential roofing into commercial work is a significant business step. The contracts are larger, the clients are more sophisticated, and the insurance requirements are dramatically more complex. What worked for reroof jobs on single-family homes can leave you completely exposed — and ineligible to bid — on commercial roofing projects.

This article covers what commercial roofing actually requires in terms of insurance, what you are likely missing if you come from a residential background, and how to structure your coverage to qualify for and win commercial accounts.

The Commercial Insurance Gap

A roofing contractor with $1M GL, workers comp, and commercial auto has a solid baseline for residential work. For most commercial roofing contracts, that coverage is insufficient on multiple fronts:

• Liability limits are too low — most commercial GCs require $2M per occurrence minimum, and many require $5M+ total
• Additional insured requirements are more complex and specifically worded
• Installation floaters may be contractually required for materials before installation
• Umbrella coverage is typically contractually required
• Workers comp limits under the employers liability section may need to be higher
• Completed operations coverage must be explicitly present for commercial clients who care about multi-year warranty claims

If you sign a commercial roofing contract without reviewing the insurance requirements section and confirming your coverage meets them, you could be in breach of contract before you do any work — and personally exposed for any claim that occurs.

What Commercial Contracts Actually Require

Pull out your most recent commercial roofing subcontract. Look for the insurance section. Here is what a typical commercial GC will require:

Commercial General Liability

• $2,000,000 per occurrence
• $4,000,000 general aggregate (or $2M aggregate per project)
• $2,000,000 products and completed operations aggregate
• Additional insured status for the GC, property owner, and often the architect
• Primary and non-contributory wording
• Waiver of subrogation in favor of named additional insureds

Each of these terms matters. "Primary and non-contributory" means your GL must pay before the GC's GL kicks in, regardless of fault allocation. "Waiver of subrogation" means your carrier agrees not to sue the GC to recover what they pay on your behalf.

These are not optional contract terms. If your policy does not support them, you cannot satisfy the contract, and you are ineligible to perform the work — or worse, you are technically in breach if discovered after work starts.

Workers Compensation

• Statutory limits per state for the WC benefits
• $1,000,000 per accident for employers liability (Part B)
• Waiver of subrogation in favor of the GC

Note the employers liability limit. Standard WC policies default to $100,000 per accident. Commercial contracts typically require $500,000 or $1,000,000 per accident. This endorsement needs to be added — it does not come automatically.

Commercial Auto

• $1,000,000 combined single limit
• Hired and non-owned auto coverage
• Additional insured for GC vehicles involved in the project

Umbrella / Excess Liability

• $5,000,000 or more is common
• Must follow form over GL and auto
• Additional insured endorsements must follow through to umbrella

The umbrella is what puts you over the top on total limits. If your GL is $2M per occurrence and you add a $5M umbrella, you have $7M total per occurrence — sufficient for most large commercial projects.

Builder's Risk / Installation Floater

• Some contracts require you to maintain an installation floater for materials in your care, custody, and control
• Others simply require that you insure your own materials until installed and accepted
• Read the contract language carefully — "CCC/care, custody and control" triggers your responsibility

Certificates of Insurance: The Administrative Reality

Commercial work generates constant certificate requests. Every GC requires a certificate before work starts. Property managers require them for tenant builds. Building owners require them for permit applications. Lenders require them for construction loans.

A certificate of insurance (COI) is a one-page document issued by your insurance agency that summarizes your coverage. It is not the policy — it is evidence of the policy.

For commercial work, certificates are not generic. Each certificate often requires:

• Specific additional insured wording
• Specific project names or locations
• Specific endorsement references (CG 20 10, CG 20 37)
• Waiver of subrogation notation
• Primary and non-contributory notation

An agent who cannot issue properly worded certificates quickly is a liability on commercial jobs. We issue certificates same day with correct commercial wording. That matters on a Tuesday morning when your GC says they cannot let your crew on site until they have the cert.

Completed Operations: The Multi-Year Problem

Commercial roofing warranties create completed operations exposure that extends for years after the job is done. A five-year workmanship warranty on a commercial roof means you have potential liability on that project for five years post-completion.

If your GL policy does not have products and completed operations coverage, you are not covered for claims that arise after the job is done. If your products and completed operations aggregate is too low, you can exhaust it on a single large claim.

Commercial clients are more sophisticated about this. They often specify that you maintain completed operations coverage for a period equal to the statute of limitations in the state plus the warranty period. That can mean keeping the coverage in force for 7-10 years after project completion.

This is an argument for occurrence form GL rather than claims-made. With occurrence form, the policy in force when you did the work covers claims from that work indefinitely. With claims-made, if you let your policy lapse or switch carriers, you need tail coverage to protect completed work.

Specific Commercial Roofing System Insurance Considerations

TPO and EPDM Flat Roof Systems

Thermoplastic polyolefin (TPO) and ethylene propylene diene monomer (EPDM) membrane roofing on commercial flat roofs involves heat-welded seams, penetration flashings, and detailed drain work. Failure modes include seam separation, penetration flashing failures, and improper drain terminations — all of which can cause catastrophic water intrusion in large commercial buildings.

A single leak in a commercial property can damage inventory, equipment, ceiling systems, flooring, electrical, and HVAC — easily running into six figures in a large warehouse, distribution center, or office building.

Your products and completed operations coverage is what handles these post-completion claims. Make sure yours includes flat roofing, has no membrane exclusions, and has adequate aggregate limits.

Metal Roofing — Standing Seam, Structural, Architectural

Metal roofing failures on commercial buildings — improper fastener patterns, inadequate thermal expansion accommodation, failed sealant at transitions — can cause panel uplift in wind events and water intrusion through fastener points.

Metal roofing contractors should specifically confirm that their GL policy covers metal roofing systems without exclusions. Some policies that cover asphalt shingle work have specific exclusions for metal roofing or specialty roofing systems.

Solar-Integrated Roofing

Roofing contractors who install or work around solar photovoltaic systems face additional exposures: electrical damage liability, fire risk from improper penetrations near electrical conduit, and potential property damage from PV system falls if improperly anchored.

If you work on solar-integrated roofing, confirm your GL specifically covers operations in proximity to or involving photovoltaic installations. This may require an endorsement or specialty policy.

Commercial Cool Roofs and Reflective Coatings

Spray-applied and brush-applied roof coatings are a growing segment of commercial roofing. Application errors — coverage gaps, blistering, improper surface preparation — can result in coating failure and warranty claims months later.

Products and completed operations coverage is critical here, as coating failures are almost never discovered during application.

Building Your Commercial Insurance Program

If you are transitioning from primarily residential to commercial roofing, here is the coverage ladder to climb:

Step 1 — Raise Your GL Limits: Move from $1M/$2M to $2M/$4M per occurrence/aggregate. This is a table-stakes requirement for most commercial contracts.

Step 2 — Add Umbrella: Get at least $2M in umbrella. $5M is better. This is what commercial GCs and property owners actually need from you.

Step 3 — Fix Your WC: Confirm your employers liability limits are $1M/$1M/$1M. Most policies default to $100K. Commercial contracts require higher.

Step 4 — Add Installation Floater: For large commercial projects with significant material value, get a project-specific or annual installation floater. Protect your materials from delivery to installation.

Step 5 — Verify Commercial Cert Capability: Confirm your agency can issue certificates with the specific additional insured forms, primary and non-contributory notation, and waiver of subrogation notation that commercial contracts require.

Step 6 — Review Completed Operations Limits: Confirm you have adequate products and completed operations aggregate for the volume and warranty exposure of your commercial work.

The Real Cost of Getting It Wrong

We worked with a roofing contractor who had been doing residential work for 12 years. He landed a $1.2M commercial reroof on a 200,000 sq ft distribution center — his biggest job ever.

He did not review the contract's insurance requirements carefully. His GL had a $500K products and completed operations sublimit that he was not aware of. Fourteen months after the job was complete, a seam separation in the TPO membrane caused water intrusion that damaged $380,000 in merchandise and required $95,000 in emergency repair and reroof work.

The GL carrier paid the products and completed operations claim up to the $500K sublimit. The remaining $475,000 — including a portion of the legal defense — came out of his pocket. He sold his house and took out a personal loan to settle.

The products and completed operations sublimit increase would have cost approximately $1,800 on his annual premium. The settlement cost him $475,000.

Know what your policy says. Know what your contract requires. Make sure they match.

Call us at (800) 555-0177 or get a quote online. We will review your current coverage against actual commercial contract requirements and tell you exactly what needs to change.

---

Contractors Choice Agency. Commercial roofing insurance specialists. Licensed in all 50 states.