About Rockfon Samson
A 40mm stone wool tile with a tough woven face for sports halls, gyms and busy school areas where ball strikes and knocks are expected. Fitted in the matching impact systems it achieves the higher impact classes, while still giving strong sound absorption in reverberant spaces.
Key performance
| Sound absorption | αw: up to 1.00 (Class A) |
|---|---|
| Reaction to fire | A1 |
| Light reflection | 72% |
| Impact resistance | 40 mm: Class 1A (Rockfon System OlympiaPlus A Impact 1A); 40 mm: Class 2A (Rockfon System T24 A Impact 2A/3A) |
| Humidity and sag resistance | Up to 100% RH. No visible deflection in high humidity C/0N |
| Edges | A24, AEX |
| Weight (kg/m2) | 4.1 |
| Cleaning | Vacuum |
Source: Rockfon Samson datasheet, 04.2026. Figures quoted exactly from the manufacturer's datasheet; confirm with Rockfon before specifying.
Acoustic performance
| Edge / Thickness (mm) / Suspension (incl. tile - mm) | αw | Absorption class | NRC |
|---|---|---|---|
| 40 / 225 | 1.00 | A | 1.05 |
| 40 / 40 | 0.85 | B | 0.90 |
Selected rows; full table in the technical datasheet.