Sonablock Wood Wool Acoustic Panel 35mm · 1.0mm fibre

Natural wood wool cement board (WWCB) acoustic panels, also known as fibrolite, made from sustainably sourced wood fibres bound with Portland cement. Sonablock 35mm 1.0mm delivers genuine sound absorption, Euroclass B-s1,d0 fire rating, and a durable mineral surface for demanding commercial and public interiors. A sustainable, EU-made alternative to Heraklith and Troldtekt wood wool panels. The 1.0mm fine fibre gives the densest, most refined surface of the three fibre sizes - ideal for corporate offices, healthcare, and hospitality spaces where a clean, precise aesthetic is required alongside acoustic performance. The thicker 35 mm build is intended for deeper absorption at low frequencies in the same footprint: sports halls, auditoria, music rooms, and ceilings in large volumes. Manufactured by Stiga RM - a PEFC-certified Latvian producer. Made to order: production takes about 4 weeks (not stocked). Acoustic Performance Sound absorption up to αw 0.85 depending on specification, thickness and installation height (manufacturer datasheet, 35 mm) Independent test data: RISE Research Institutes of Sweden report O100282 (SS-EN ISO 354 / SS-EN ISO 11654) covers the 25 mm panel: αw 0.60 (Fibre 1.0 mm, ODS 200 mm) A test report for the 35 mm panel is not yet available - the 35 mm figure above is the manufacturer's datasheet value. Ask us for the latest test status for your project. Fire Safety Euroclass B-s1,d0 per EN 13501-1 Low smoke production (s1) · No flaming droplets (d0) Technical Specifications Thickness 35 mm Fibre width 1.0 mm Panel sizes 600×600 mm · 1200×600 mm (custom lengths on request) Weight 15 kg/m² Thermal conductivity λ 0.067 W/m·K (average, EN 13168) Max. relative humidity 90% RH Edge profiles B0, B5, B11, A24, E24, E24/90, D35 Designation WW-EN13168-L4-W2-T2-S2-P2-Cl3 Use Interior use and semi-exterior areas with indirect exposure to weather Lead time Made to order, about 4 weeks Available Colours Natural (unpainted) · White RAL 9010 · Light Grey RAL 7035 · Dark Grey RAL 7004 · Black RAL 9011 Custom RAL / NCS colours available on request - contact us for a quote. Ordering 35 mm panels are made to order and ship by pallet. The exact pallet quantity for 35 mm is confirmed at quotation (approx. 21.6 m² for planning). Contact us for project quotes, custom lengths, or edge profile options. Outside the EU, including the Gulf states, the UK, Norway and Switzerland, we deliver worldwide by sea or air freight, quoted per order. Certifications 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