Spray Foam GL Policy: What It Covers and What It Doesn't

General liability insurance is required for virtually every spray foam contractor. GCs demand it. Property owners require it. State licensing boards sometimes mandate it. But not all GL policies are created equal — and in spray foam, the difference between a policy that covers your real exposures and one that doesn't can be the difference between a business that survives a claim and one that doesn't.

What a Standard GL Policy Covers

A standard general liability policy covers:

• Third-party bodily injury — someone gets hurt because of your operations
• Third-party property damage — you damage someone else's property during your work
• Personal and advertising injury — libel, slander, false advertising claims
• Defense costs — legal fees when someone sues you for a covered claim

That sounds comprehensive. And for a general contractor doing framing or drywall, it usually is. For spray foam applicators, there are serious gaps.

What a Standard GL Policy Doesn't Cover

1. Off-Ratio Incidents

Off-ratio spray foam — where the A (MDI) and B (polyol) components don't mix at the correct ratio — is the most common large claim in the spray foam industry. Standard GL policies exclude it through two mechanisms:

• Pollution exclusions: Off-ratio foam can release MDI and other chemicals — which are classified as pollutants under GL policy language. The pollution exclusion removes coverage.
• Product failure / faulty workmanship exclusions: If off-ratio foam fails structurally, the GL exclusion for "your product" or "faulty workmanship" often applies.

Fix: Off-ratio coverage must be specifically added to the GL policy — either as an endorsement or as a dedicated spray foam GL form that builds it in.

2. Chemical Exposure and Pollution Claims

MDI isocyanate, polyols, amine catalysts, and blowing agents are regulated chemicals. When spray foam is applied and chemicals off-gas into occupied spaces, standard GL's pollution exclusion removes coverage for the resulting bodily injury and property damage claims.

Fix: Contractor pollution liability (CPL) coverage fills this gap. CPL covers the bodily injury and property damage that arise from spray foam chemical exposure — the claims standard GL was designed to exclude.

3. Completed-Operations Claims Below Adequate Limits

Completed-operations coverage under GL responds to claims that arise after you've finished a project. In spray foam, this matters because:

• Off-ratio failures may not be discovered for months after the job
• Adhesion failures and long-term moisture issues surface over time
• Completed-operations claims can be large if remediation is required

Many GL policies have completed-operations sublimits below the per-occurrence limit, or aggregate limits that can be exhausted before the end of the policy year.

Fix: Verify your completed-operations coverage has adequate limits and that off-ratio and pollution claims are not excluded from that coverage.

4. Your Own Equipment

GL doesn't cover your spray foam equipment — your proportioner, heated hoses, spray guns, and generators. If a proportioner is stolen from your van or damaged on a jobsite, GL won't pay for it.

Fix: Tools and equipment coverage (inland marine) covers your spray foam equipment against theft, damage, and breakdown.

What a Spray Foam GL Policy Should Include

A spray foam GL policy built by a specialist should:

• Include off-ratio coverage — either explicitly in the policy form or as an endorsement
• Have no broad pollution exclusion for spray foam chemicals, or a CPL endorsement that overrides it
• Carry adequate completed-operations limits (match your contract requirements)
• Allow same-day additional insured endorsements for GC certificate requests
• Use correct class codes for your operations

The Right Question to Ask Your Insurer

When reviewing your GL policy, ask: "Is off-ratio spray foam covered under this policy?" If the answer is anything other than a clear yes — with the policy language to back it up — you need a different policy.

Spray Foam Insurance Company builds GL programs with these exposures in mind. We explain the coverage before you sign, verify the language is right for spray foam work, and issue certificates the same day your GC needs them.