Responsible GRP specification begins with the project fire strategy, not a marketing adjective. Terms such as fire retardant, low flame spread and phenolic only become useful when connected to a named test, result, product construction and end-use condition.
In brief
- Ask what the fire strategy requires the access component to do.
- Separate reaction-to-fire, smoke, toxicity and structural fire resistance.
- Match certificates to the supplied geometry, thickness, resin and surface.
- State limits clearly and avoid claims outside the test scope.
From strategy to evidence
| Fire-strategy question | Evidence route |
|---|---|
| How readily may the product ignite or spread flame? | Applicable reaction-to-fire or flame-spread test |
| How much smoke is acceptable? | Named smoke measurement and threshold |
| Are toxic products assessed? | Specified toxicity method and acceptance criteria |
| Must the walkway carry load during fire? | Structural fire-resistance evidence or engineered assessment |
| Does the evidence cover the installation? | Field of application, joints, supports and orientation |
Claims to avoid
- “Fireproof” without a precise tested meaning.
- “Self-extinguishing” presented as non-combustibility.
- One resin certificate applied to unrelated products.
- A test result quoted without specimen thickness or method.
- Low smoke presented as proof of low toxicity.
Approval checklist
- Obtain the fire-strategy requirement.
- Identify exact product and installation.
- Request matching reports and certificates.
- Check validity, scope and deviations.
- Record approval responsibility and residual limits.
Frequently asked questions
Can GRP be described as fireproof?
That broad claim is generally misleading. State the exact tested classification and limitations.
Does a phenolic resin guarantee tunnel approval?
No. Approval depends on the required standards, complete product evidence and asset-owner process.
Should certificates be checked for expiry?
Yes, along with issuer, test method, specimen construction and field of application.
Make the fire requirement explicit
Send the fire-strategy criteria and exact product form so GRP Express can assemble the relevant evidence route.