Commercial general contractors are increasingly strict about insurance requirements for roofing subcontractors — including roof coating contractors. Before you sign a GC subcontract or mobilize on a commercial roof coating project, work through this checklist to make sure your coverage is complete.
Checklist Item 1: GL Limits That Match the Contract
Most commercial roofing subcontracts require general liability limits of $1M per occurrence / $2M aggregate as a minimum. Many require $2M/$4M, particularly for commercial property projects, government work, or projects with a total contract value above $500,000.
Check your certificate of insurance before signing. If your GL limits don't meet the contract minimum, you'll need to request an endorsement to increase limits — which requires underwriter approval and may not be same-day for significant increases.
What to look for in the contract: - GL per-occurrence and aggregate limits required - Whether completed operations must be separately listed or is included in the aggregate - Whether products and completed operations (PCO) aggregate is shown separately
Checklist Item 2: Completed Operations That Covers the Roof System Warranty Period
Roof coating completed operations exposure is a long-tail liability. When you apply an elastomeric, silicone, or acrylic coating system that carries a 10-year or 15-year warranty expectation, a coating system failure years later — and the resulting interior water damage — becomes a completed operations claim against you.
What can go wrong: - Blistering and cracking in elastomeric coatings, especially over unprimed or contaminated EPDM - Silicone coating peeling from metal surfaces with inadequate adhesion primer - Moisture intrusion after coating failure, causing damage to interior assets, inventory, or equipment - Flash restoration failures over standing water areas
Your GL policy's completed operations coverage should remain active for at least two to three years post-completion on each project. Verify your policy doesn't have a completed operations exclusion or a short discovery period that could leave you exposed on a long-term roof system.
Checklist Item 3: CPL If You Use Solvent-Based Materials
Not all roof coating systems require CPL — but solvent-based primers, some first-generation elastomeric systems, and polyurethane topcoats create pollution exposure.
Systems that generate CPL exposure: - Solvent-based primers for elastomeric and silicone systems over EPDM and metal - Aliphatic polyurethane topcoats over polyurethane foam (SPF) roof systems - Solvent-based sealers or caulks used in roof coating restoration - Lead-based paint on pre-1978 building fascia or parapet walls disturbed during roof coating prep
If building occupants or adjacent property owners are affected by vapors, spills, or chemical contamination from your solvent-containing materials, your GL will deny the claim under the pollution exclusion. CPL covers it.
Most commercial GC contracts for roof coating subcontractors are now beginning to require CPL. Check the contract. If it requires CPL and you don't have it, you're in breach of contract the moment you sign.
Checklist Item 4: Workers Comp With Correct Fall Exposure Rating
Roof coating work is roofwork — OSHA's fall protection requirements apply (Subpart R, 29 CFR 1926.502) for any fall exposure of six feet or more. Your workers comp carrier needs to know you perform roof work.
Fall exposure details that affect your rate: - Roof height and roof type (low-slope flat vs. pitched) - Whether you use personal fall arrest systems, safety nets, or guardrails - Your documented safety and fall protection program - Your experience modification rate (EMR)
Workers comp classifications for roof coating contractors typically include roofing codes (NCCI 5551 or similar state equivalents) or painting/coating codes (5474). Roofing classification codes carry higher rates reflecting fall exposure — but carriers who understand coating work may classify you under painting/coating codes if the work is purely coating application on low-slope commercial roofs without significant fall exposure to elevated edges.
An incorrect workers comp classification can leave you exposed if a claim occurs in a job classification your policy doesn't include.
Checklist Item 5: Additional Insured + Waiver of Subrogation
Before mobilizing, confirm your insurer has issued the required certificate of insurance with:
- GC named as additional insured on GL and CPL
- Property owner named as additional insured (many contracts require this separately from the GC)
- Waiver of subrogation on GL, CPL, and WC
- 30-day notice of cancellation (sometimes 10 days for non-payment)
- Correct project description (some contracts specify the project address must appear on the certificate)
A certificate that doesn't match the contract requirements will delay your mobilization and may require a policy endorsement that takes time. Request your certificate well before the job start date.
How Fast Can You Get a Certificate?
We issue certificates same-day in most cases. If you need GL, CPL, and WC certificates with additional insured endorsements for an upcoming roof coating project, call 844-967-5247. Have the GC's name, address, and any specific certificate language from the subcontract ready.
If you need to upgrade your GL limits or add CPL before you can sign a contract, call us — same-day binding is available for most commercial roof coating operations.