Sonar Activity
Sonar Activity is designed for classrooms and open plan offices where speech intelligibility is crucial and noise and activity levels are very high.
The 40mm thickness and the high degree of sound absorption provided by Sonar Activity makes direct installation onto soffits possible - maximising ceiling height whilst still achieving Class A sound absorption.
Jump directly to specification generatorWith our Technical Specifications generator you are able to create your own specification within the different products to see how the combination of edges, installation systems, module size etc. affects the acoustic properties. Click on the above link to refine your choice first.
Assortment
| Edge | Module size (mm) | Installation system | ||||||
|---|---|---|---|---|---|---|---|---|
| A24 |  | 600 | x | 600 | x | 40 | RockLink 24 | |
| 600 | x | 600 | x | 40 | RockLink 24 ECR | |||
| 1200 | x | 600 | x | 40 | RockLink 24 | |||
| 1200 | x | 600 | x | 40 | RockLink 24 ECR | |||
| B |  | 600 | x | 600 | x | 40 | Rockfon System B | |
| 1200 | x | 600 | x | 40 | Rockfon System B | |||
| E24 |  | 600 | x | 600 | x | 40 | RockLink 24 | |
| 600 | x | 600 | x | 40 | RockLink 24 ECR | |||
| 1200 | x | 600 | x | 40 | RockLink 24 | |||
| 1200 | x | 600 | x | 40 | RockLink 24 ECR | |||
Technical data
Sound absorption
Sound absorption data has been measured in accordance with ISO 354. Sound absorption data αp, αw and absorption class are calculated in accordance with ISO 11654. Noise Reduction Coefficient (NRC) is calculated in accordance with ASTM C423.
Fire performance
General
Rockfon products have a core of stone wool. Stone wool is non-combustible with a melting point of more than 1000°C.
Reaction to fire
Class A1 in accordance with EN 13501-1.
Fire protection
The fire resistant properties of stone wool ensure Rockfon ceiling tiles provide fire protection in construction. The fire protection properties of Rockfon ceilings have been tested and classified against European norm EN 13501-2 and/or national norms depending on requirements in national building codes.
Some sizes and edge details of Sonar Activity can be used with various RockLink grid systems to create a 60 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.
Humidity resistance and dimensional stability (flexural tensile strength)
Rockfon products are dimensionally stable even at humidity levels of up to 100% RH and can be installed at all temperatures ranging from 0°C to 40°C. No acclimatisation is necessary.
Sonar Activity is predominantly classified as class 1/C/0N in accordance with EN 13964. However, certain module sizes (width greater than 700 mm) are class 2/C/0N.
Light reflection
Thermal conductivity
Sonar Activity with a thickness equal to and exceeding 30 mm has been measured in accordance with EN 12667 and has obtained the following value: λD = 40 mW/mK.
Hygiene
Stone wool has no nutritional value and therefore it provides no sustenance to harmful micro-organisms.
Cleaning
The surface can be vacuum cleaned with a soft brush attachment.
The surface can also be cleaned once a week using a sponge or cloth and warm water (max. 40°C) with a slightly alkaline detergent (max. pH 10) without alcohol, ammonia or chlorine. Cleaning with a damp sponge or cloth may render the surface slightly shinier and we therefore recommend cleaning the whole surface evenly for best results.
Aftercare
The tiles can be post factory treated with a re-finishing paint, e.g. a PVA water based latex paint. The paint should be applied with an airless spray in a low amount (no brushing or rolling). Rockfon advises the use of the smallest amount of paint in order to minimise reduction in sound absorption. The surface of the tiles must be clean and dry and the existing paint surface must be firmly adhered to the tile prior to refinishing. Heavily discoloured tiles should be replaced.
Disclaimer: The application of refinishing paint will influence acoustic properties and fire safety performance. Rockfon takes no responsibility for these properties after treatment.
Environment
A representative selection of Rockfon products have been awarded the Indoor Climate Label and the Finnish Indoor Climate label (M1).
Sonar Activity is recyclable.
