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Off-Ratio Coverage for spray foam contractors

Off-ratio foam is the #1 claim exclusion in standard spray foam contractor GL — and most agents don't even ask about it. When your A-side and B-side ratio is off, the foam can fail to cure, lose adhesion, off-gas at elevated levels, or cause moisture intrusion. I place coverage that responds to those claims.

Off-Ratio Coverage — spray foam contracting

What it covers

  • Property damage from foam applied at incorrect chemical ratios
  • Adhesion failures and delamination attributable to ratio issues
  • Moisture intrusion resulting from off-ratio foam performance failure
  • Remediation and removal costs when off-ratio foam must be addressed
  • Third-party bodily injury claims from elevated off-gassing
  • Defense costs for off-ratio related claims

Who it's for

  • Any spray foam contractor whose current GL excludes off-ratio applications
  • Contractors who've had a claim denied under an off-ratio exclusion
  • Operations where ratio monitoring or equipment calibration isn't always perfect
  • Commercial spray foam contractors facing completed-operations exposure from prior jobs

Why me

  • I know which markets offer real off-ratio coverage — not a nominal endorsement with a sublimit that barely covers remediation
  • Off-ratio coverage structured to coordinate with your GL so claims don't fall between policies
  • E&S market access for contractors with prior off-ratio claims or loss history
Off-Ratio Coverage — FAQ

Common questions about off-ratio coverage

Off-ratio foam is spray polyurethane foam applied when the A-side isocyanate and B-side polyol components aren't in the correct ratio. Causes include equipment calibration issues, temperature problems, or operator error. The result can be foam that doesn't cure properly, loses adhesion, off-gasses at elevated levels, or causes moisture or structural issues. Standard GL excludes these claims, which is why off-ratio coverage exists.

Probably not. Most standard contractor GL forms have a specific exclusion for off-ratio foam applications, or exclude 'faulty workmanship' and 'product failure' claims that overlap with off-ratio scenarios. I review the actual exclusions in your policy before placing supplemental coverage.

Off-ratio coverage is typically structured as a separate policy or endorsement that picks up where your GL exclusions leave off. I coordinate the two so there isn't a gap in the trigger language — the goal is that an off-ratio claim is covered somewhere in the program, not disputed between two carriers.

Depending on how the policy is structured, yes — remediation and removal costs from off-ratio foam can be covered. I make sure the off-ratio policy includes removal when that's a realistic claim scenario for your operation.

Prior off-ratio claims make placement harder in standard markets, but I have E&S markets that will review the claim history and still offer coverage. Bring me your loss runs and I'll tell you what's possible.

Cost depends on revenue, crew size, rig count, open-cell vs. closed-cell, commercial vs. residential work, loss history, and which states you operate in. I quote your actual operation in about 15 minutes — not a generic ballpark from a standard contractor form.

Yes. I'm licensed in all 50 states and write spray foam contractor programs nationwide — Texas, Florida, the Southeast, Midwest, Northeast, California, and everywhere in between.

Typically 15 minutes on a call. I know the spray foam market and go straight to the right carriers. Larger or more complex programs take a day or two, but I set expectations upfront.

Often yes. I have admitted and E&S markets for spray foam contractors with prior loss runs, off-ratio claims, or completed-operations issues that standard carriers won't touch. Bring me your situation and I'll find a path.

Yes. A coordinated program closes gaps between policies — especially between GL, off-ratio, and pollution liability — and typically costs less than separate policies from separate carriers. It's also far cleaner when a claim hits.

A.M. Best ratings reflect a carrier's financial strength and ability to pay claims. I place coverage with A-rated carriers so the policy is there when a completed-operations claim, off-ratio denial dispute, or pollution claim hits.

Yes. I write programs for contractors doing open-cell residential, closed-cell commercial, and everything in between — including contractors who work across both segments with different crews and equipment.

Revenue, crew size and payroll, rig and equipment list, open-cell vs. closed-cell work, commercial vs. residential breakdown, states worked, current coverage, and loss history. The more detail, the more accurate the quote — and the faster I can get it back to you.

It can, with the right endorsement. If you sub out work or use independent crews, we need to structure your GL and workers' comp to cover those exposures — both your liability for their work and the workers' comp gap if a subcontractor's crew isn't properly covered.

In most states, yes. Contractor licensing typically requires proof of general liability and workers' comp before a license is issued — and many GCs and project owners require certificates before you can start work. I handle the bonding too if your state requires a license bond.

GCs on commercial jobs often require $2M per occurrence or higher, plus additional insured status and waiver of subrogation. I structure programs that meet standard GC certificate requirements — and add a commercial umbrella when the project requires limits above what GL alone can provide.

Yes. If you run multiple rigs with separate crews across multiple sites, I build one coordinated program so there are no gaps in GL, equipment, or workers' comp coverage as your crews move between jobs.

Yes. Removal adds its own exposures — especially if you're removing older foam or fiberglass and dealing with debris, dust, and chemical exposure. I factor removal into the class coding and make sure your workers' comp and liability both reflect the actual scope of work.

A bond is a guarantee to a third party (like a state licensing board or a project owner) that you'll perform your obligations. Insurance protects you from losses. Most spray foam contractors need both — insurance for their own risk, and a bond to satisfy licensing or contract requirements. I handle both.

Ready to talk spray foam insurance?

I quote spray foam contractor insurance in 15 minutes — GL, off-ratio, pollution, workers' comp, equipment, and commercial auto. Call or get a quote now.