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Product images: the manufacturer (official).
Board encasement
Calcium silicate fire protection board
A dense, non-combustible board screwed or stapled around steel members, with a smooth surface for paint – dry, robust and easy to inspect.
- A1 (typical)
- Reaction to fire
- up to R240
- Typical rating
- Dry – box encasement
- Installation
Supplied by World Steel with your steel building or on its own – one order, one shipment, one partner.
Overview
About Calcium silicate fire protection board
Cut to size and fixed around the section as a box – thickness chosen from the section factor and rating.
No wet trades, no curing time and no overspray on site.
Also used for fire-rated ducts, walls and ceilings.
Key benefits
- Long fire ratings with a dry system
- Smooth, paintable finish
- Robust against impact
- Thickness can be checked visually – easy inspection
World Steel · building envelope hub
How we use Calcium silicate fire protection board in steel buildings
World Steel supplies fire boards with the steel structure, sized from the member schedule and packed with the steel, so the encasement contractor starts as soon as the frame is erected.
- 01Specified with the structure – thickness, density and facing matched to the roof, wall and fire design.
- 02Quantities taken from the same 3D model as the steel, purlins and cladding.
- 03Packed and shipped with the steel package – one delivery schedule to site.
Applications
Where Calcium silicate fire protection board is used
- Columns and beams in offices, hospitals and public buildings
- Steel in escape routes and lobbies
- Fire-rated duct and shaft enclosures
Technical data
Calcium silicate fire protection board – technical properties
Typical properties
| Property | Unit | Value |
|---|---|---|
| Reaction to fire | — | A1 non-combustible (EN 13501-1), typical |
| Typical rating range | min | 30 – 240 |
| Assessment | — | EN 13381-4 · ASTM E119 / UL listings · AS 1530.4 |
Values as published by the manufacturer for this market. Always check the current data sheet and the approvals required for your project before ordering.
Steel encasement boards
Related products
Board encasementVermiculite fire protection boardView product →Boards · cement-basedCement-based fire protection boardsView product →Boards · encasement systemsSteel encasement systemsView product →← Boards for encasing structural steelFire Protection Boards →
FAQ
Frequently asked questions
What thickness of calcium silicate fire protection board do I need?
It depends on the member size (section factor), the critical temperature and the required fire rating – the fire engineer or the manufacturer's tested data gives a thickness for each member.
Does World Steel supply branded products?
Yes – we supply the brand and listed system your specification or authority requires. This page describes the product type.
One partner for structure and envelope
Send us your drawings or bill of quantities – we quote the steel, insulation, boards and ceilings together and ship them as one package.