Stiga RM
Sonablock FireSafe Wood Wool Acoustic Panel 25mm · 1.0mm fibre · A2-s1,d0
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PRICE PER SIZE:
- 600 × 600 mm - €12,24/sheet (€34,00/m²)
- 1200 × 600 mm - €24,48/sheet (€34,00/m²)
Prices are per m² excluding VAT. Minimum order: 1 pallet (30.96 m²) - orders below 1 pallet incur a +€255 surcharge. Contact us for project quotes, custom sizes, or edge profile options.
Painted wood wool cement board (WWCB) acoustic panels, also known as fibrolite, made from sustainably sourced wood fibres bound with a higher proportion of Portland cement. Sonablock FireSafe 1.0mm is the Euroclass A2-s1,d0 non-combustible grade of the Sonablock range, for projects where the standard B-s1,d0 panel is not accepted. A sustainable, EU-made wood wool panel with a fine, refined surface texture.
The 1.0mm fine fibre gives the denser, finer surface of the two FireSafe fibre sizes - ideal for corporate offices, healthcare, and hospitality spaces where a clean, precise aesthetic is required alongside A2 fire performance.
Manufactured by Stiga RM - a PEFC-certified Latvian producer. Fire classification report issued by Kiwa (4243A / 1784 / 2026, July 2026).
Acoustic Performance
- Acoustic test data for the FireSafe grade is pending: this grade has not been tested yet, and the supplier expects the values to differ from the standard grade because of the higher cement content
- Indication only (standard B-s1,d0 grade, not FireSafe): αw 0.60 (Fiber 1.0 mm, ODS 200 mm) - Absorption Class C, tested per SS-EN ISO 354 / SS-EN ISO 11654 by RISE Research Institutes of Sweden (report O100282)
Fire Safety
- Euroclass A2-s1,d0 per EN 13501-1 - the non-combustible class
- Low smoke production (s1) · No flaming droplets (d0)
- Classification report by Kiwa: 4243A / 1784 / 2026 (July 2026)
- A2 is the non-combustible class typically required for escape routes, schools, hospitals, high-rise buildings and many public-building specifications where the standard B-s1,d0 panel is not accepted
- For comparison, the standard Sonablock range is classified B-s1,d0
Lead time
Made to order - standard production but not held in stock. Lead time about 4 weeks from order.
Technical Specifications
| Thickness | 25 mm |
| Fibre width | 1.0 mm |
| Reaction to fire | A2-s1,d0 (EN 13501-1, Kiwa 4243A / 1784 / 2026) |
| Panel sizes | 600×600 mm · 1200×600 mm |
| Weight | approx. 11 kg/m² (standard grade; FireSafe grade to be confirmed) |
| Thermal conductivity | λ 0.067–0.070 W/m·K (EN 13168) |
| Density | 410 kg/m³ |
| Max. relative humidity | 90% RH |
| Edge profiles | A24, B5, B11 |
| Designation | WW-EN13168-L4-W2-T2-S2-P2-Cl3 |
| Lead time | Made to order, about 4 weeks from order (not stocked) |
Available Colours
Supplied painted as standard: White RAL 9010 · Natural (RAL 1015) · Light Grey RAL 7035 · Dark Grey RAL 7004 · Black RAL 9011
Certifications
- Euroclass A2-s1,d0 per EN 13501-1, classification report by Kiwa (4243A / 1784 / 2026)
- CE marking per EN 13168:2012+A1:2015
- Declaration of Performance (DoP SB 1.1)
- PEFC Chain of Custody (BMCERT-PEFC-COC-00175, valid to Feb 2028)
- Environmental Product Declaration - EPD-IES-0031288 (valid to 2031)
- No added formaldehyde · REACH compliant
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