Acoustic Insulation
New brochure detailing excellent acoustic performance of natural fibre recycled cotton insulation for professional and DIY applications
Inno-Therm® meets or exceeds quality and performance standards of conventional insulation products. Composition 85% recycled cotton.
The insulation allows, besides its hydrothermal performance, to provide acoustic comfort and that even with a little thickness.
The results are derived from acoustic measurements in accordance with ISO 11 654 standard made by the ICAM linked to the UTC the 10/05/2008.
Graph showing Transmission Loss for 20mm Felt
How to build a sound reducing window frame
Information
Read how natural fibre recycled cotton acoustic insulation was used in the 2014 Winter Olympics Read more
Read how natural fibre recycled cotton acoustic insulation was used in the 2012 London Games. Read more
Eko baffles Technical Information (French language)
Eco 45mm Technical Information – English
Laboratory Test report for Metisse PM + 50mm acoustic (English)
Laboratory Test report for Metisse PM + 45mm acoustic (Dutch) (Information is in the English document)
Random-incidence absorption coefficient
Description of the specimen: 20 mm thickness of Inno-Therm®
The random absorption coefficient is 0.72 at 1000 Hz and increases to 0.9 at 2000 Hz. The material is showing excellent performance at the lower and mid frequency range for the given thickness (20 mm).
| Frequency [Hz] | Absorption coefficient |
|---|---|
| 100 | 0.03 |
| 125 | 0.04 |
| 160 | 0.06 |
| 200 | 0.09 |
| 250 | 0.13 |
| 315 | 0.19 |
| 400 | 0.27 |
| 500 | 0.36 |
| 630 | 0.47 |
| 800 | 0.60 |
| 1000 | 0.72 |
| 1250 | 0.82 |
| 1600 | 0.88 |
| 2000 | 0.90 |
| 2500 | 0.89 |
| 3150 | 0.89 |
| 4000 | 0.90 |
| 5000 | 0.90 |
