White, stone wool, smooth surface tile for a high level of sound absorption and insulation.
Features and benefits:
- Class A sound absorption and Class A2-s1,d0 fire safety.
- Attractive to the visible side, with a smooth, deep matt finish.
- The 35 mm thickness and high performance membrane on the reverse side help to reduce the transmission of noise from room to room.
- Durable, ensuring resistance to dirt and everyday wear and tear, extending the product lifetime.
- Easy to clean with a damp cloth or vacuum cleaner.
- Available in concealed, semi-concealed and visible grid options.
- Hygienic; stone wool provides no sustenance to micro-organisms.
- Includes durable painted edges.
Application:
Suitable for room to room sound insulation and absorption in areas such as:
- Flexible and quiet office layouts.
The recommended installation system for this product is Rockfon® System dB™ - consult manufacturer for details.
Standard product features
Colour:
Super white (L value: 94.5).
Thickness:
35 mm.
Weight:
5.6 kg/m².
Surface finish:
- Visible side: Smooth, deep matt, white painted fleece.
- Rear side: High performance membrane.
Sound absorption:
To ISO 11654: 0.90 αw. Class A.
Sound insulation:
- Direct sound insulation: 21 dB Rw.
- Room to room sound insulation: 41 dB.
Reaction to fire:
To BS EN 13501-1: A2-s1,d0.
Fire performance:
Some sizes and edge details of Rockfon® Blanka™ dB 41 can be used with various Chicago Metallic grids and Rockfon systems to create a 30 minutes fire protecting ceiling in accordance with BS 476 Part 21 and Part 23. They can also be used to create a 30 minutes fire protecting membrane ceiling (integrity only) in accordance with BS 476 Part 22 – consult manufacturer for details.
Humidity and sag resistance:
- Dimensionally stable, even at humidity levels of up to 100% RH.
- No visible deflection in high humidity.
Light reflection:
Light reflection: 87% (Light Diffusion: >99%).
Demounting:
Rockfon tiles with A, D and E edges can be demounted.
Thermal insulation:
- Thermal conductivity (K-Value): 40 W/mK.
- Thermal resistance (R-Value): 0.85 m²K/W.
Cleaning:
- Vacuum: The surface can be vacuum cleaned with a soft brush attachment.
- Damp cloth: The surface can be cleaned using a damp cloth or sponge with a slightly alkaline detergent (pH between 7 and 9) without alcohol, ammonia or chlorine (this may render the surface slightly shinier, so a thorough clean is recommended).
- Wet scrub resistance to EN ISO 11998: 2007: Class 1.
Emissions:
Awarded the Finnish M1 emission classification for building materials and the Danish Indoor Climate Label for low VOC emission products.
Compatible edges, grids and systems:
- A24: Use with Chicago Metallic T24 2890 Click Grid to create Rockfon® System T24 A™.
- D: Use with Chicago Metallic T24 2890 Click Grid to create Rockfon® System T24 Stepped Z D™ or Rockfon® System XL T24 D™.
- E15: Use with Chicago Metallic T15 2790 Click Grid to create Rockfon® System T15 E™.
- E24: Use with Chicago Metallic T24 2890 Click Grid to create Rockfon® System T24 E™.