Fire class selection
The right product starts with the right class: reaction to fire (B/C/D), load-bearing resistance (R) and integrity/insulation (EI) measure different things. The table below matches this site’s products to their classes.
Reaction to fire (B/C/D-s1,d0)
- B-s1,d0 — for the strictest surface requirements: NORFLAM® W310 (interior/exterior cladding, panels, interior CLT), NORFLAM® W101 (interior CLT and panels, clear), Protega Wood-C (interior light timber, ETA-24/0441), Protega Wood-S White / White Wash (escape routes and assembly areas), Protega Upgrade (previously painted surfaces, ETA-24/0442).
- C-s1,d0 — NORFLAM® W311 (facades, interior panels, thermally modified timber).
- D-s1,d0 — NORFLAM® W313 (facades, thermally modified timber).
s1 = low smoke, d0 = no flaming droplets. See Glossary: EN 13501-1.
Load-bearing resistance (R30–R120)
- Timber: Protega Timber W (R30–R60, opaque white), Novatherm 1FR (B-s1,d0 + R30–R60), Novatherm 2FR (R30), Novatherm 4FR (R60). Consumption comes from sizing tables per section and load utilisation — see TDS.
- Steel: Protega Steel 1001 (R30–R90, ETA-20/1123; R30–R60 optimised), Protega Steel 1002 (R30–R120). Consumption is project-specific via the steel calculator.
Integrity and insulation (EI30–EI240)
Novatherm 4SP is a repair spackle that levels damaged surfaces before fire paint (manufacturer-stated EI30–EI240). Not tintable; fire paint goes over it; used with Novatherm 2FR/4FR and Steel 1001/1002.
Decision steps
- Pin down the required class and the surface (facade, escape route or structure?).
- Narrow candidates with the Solution Finder and compare side by side on Compare.
- Confirm the choice against product TDS/ETA documents; never use off-TDS consumption or topcoats.
Related products
NORFLAM® W310 — B-s1,d0Protega Wood-C — B-s1,d0Novatherm 4FR — R60Protega Steel 1002 — R30–R120Novatherm 4SP — EI30–EI240
Source: figures come from product TDS/ETA documents (manufacturer-stated); see Documents for current files.