Product knowledge — boards
Ramco Hilux calcium silicate board — fire and build-up evidence, clearly framed.
Calcium silicate board questions are usually fire questions in disguise — a wall, floor or ceiling that has to perform, and a board being asked to prove its part in that.
Hilux is a calcium silicate building board from the Ramco / RBB UK range — a connected product route for The Bench, so we hold structured evidence records for it and see its typical questions regularly. This page sets out where Hilux is commonly proposed, the evidence commonly reviewed, and how to get a specific fire or build-up question answered in writing.
Independent evidence review. Not certification, Building Control or design sign-off.
When the fire question has a board in it
Use this page if Hilux — or a calcium silicate board like it — appears in a fire-related specification, a lining build-up or a technical query, and you need to know what the evidence actually covers. Fire evidence is where the gap between "the board performs" and "this assembly has evidence" matters most, and this page is organised around that distinction.
The logo identifies the product area this evidence record covers. It does not imply certification, approval, endorsement or guaranteed acceptance of any product or build-up.
The questions that usually arrive with this board
What fire performance evidence exists, and what exactly does it cover?
Fire evidence is precise about scope — the tested assembly, orientation, thicknesses and supporting construction.
Is the evidence for the board alone, or for a tested build-up?
Board-level evidence and assembly-level evidence answer different questions, and they are often mixed up.
Can this board be used in this wall, floor or ceiling lining?
Thickness, framing and configuration all sit inside the evidence scope — or outside it. That's the review.
Does evidence from one tested assembly read across to ours?
Field of application rules decide how far tested configurations extend, and they reward careful reading.
What role can the board play where compartmentation is being discussed?
The discussion is about the assembly and its evidence — the board is one component of that picture.
What will the project team expect to see before the detail is accepted?
Organising the evidence before the question hardens is usually cheaper than answering it afterwards.
The paperwork behind calcium silicate board questions
- Reaction to fire classification reports
- Fire resistance test evidence for specific tested assemblies
- Classification reports and field of application details
- Technical datasheets and declared values
- System build-up evidence, where the board is one component of an assembly
- Installation guidance — framing, fixings, joints and layer configurations
- CE/UKCA documentation and declarations of performance
Fire evidence is precise about what it covers: the tested assembly, the orientation, the thicknesses, the supporting construction. Available evidence can be reviewed against the intended use — and the closer that comparison is done, the fewer surprises later.
A written evidence position for the assembly actually proposed
- Review Hilux fire and build-up evidence against the assembly actually proposed
- Distinguish board-level evidence from assembly-level evidence — and flag where one is being used as the other
- Check field of application: whether the tested configuration covers the proposed one
- Help identify evidence gaps and set out what would close them
- Provide a written review note, gap register or evidence summary the project team can use
The output is written — something you can put in front of the specifier, contractor or Building Control. We quote before any written work starts.
Clear about the limits of the review
The Bench does not certify, approve or replace project-specific design responsibility. In particular, the review does not provide:
- Certification or approval of the board or any system using it
- Building Control or other statutory sign-off
- Warranty or guarantee decisions for the product or build-up
- Design responsibility for the wall, floor or ceiling detail
Fire performance conclusions for a project remain with the appointed competent person or organisation. Our written review is there to support them, not replace them.
Where Hilux questions usually resolve
Hilux questions may be relevant to these evidence areas:
- Fire performance — reaction to fire and fire resistance evidence
- Walls, floors and ceilings — linings and internal build-ups
- System build-ups — assembly evidence rather than component evidence
- Façades and external walls — where board questions meet external wall build-ups
External product resources
These external links point to manufacturer or product-owner information. The Bench review remains independent and evidence-led.
A fire evidence question with a board in it?
Send the assembly, the question and the documents you already have. Fire evidence questions reward being asked early — we quote before any written work starts.