Acoustic Infills
ROCKWOOL Acoustic Infills are specially engineered into trapezoidal shapes that can be suited to fit all types of perforated metal roof deck profiles. Ideal for use in flat roof areas such as over convention and sports halls, manufacturing plants, or atriums, this product has an optimised density to absorb sound.
Acoustic Infills have been designed and tested for use with ROCKWOOL HardRock® Multi-Fix DD roofing boards as a solution to parts E3 and E4 of Approved Document E, as well as BB93, achieving Class C sound absorption in accordance with BS EN ISO 11654.
Specification
| NBS Clause | Length (mm) | Width (mm) | *Approved thickness range |
| G30/110, H31/254 | 1200 | 20 - 600 | 30 - 200 |
*Thickness options may be subject to a minimum production volume. Speak to the specification team for guidance.
Standards and Certification
| Product standards | Parts E3 and E4 of Approved Document E BB93, Class C in accordance with BS EN ISO 11654. |
Technical Properties
Sound absorption | Class C (BS EN ISO 11654) |
| Weighted absorption coefficient αW | 0.60 |
Acoustic Performance
| Frequency (Hz) | 125 | 250 | 500 | 1000 | 2000 | 4000 |
| Practical Absorption Coefficient | 0.55 | 0.95 | 1.00 | 0.90 | 0.60 | 0.40 |
CAD Drawings
Download CAD Drawings here
