We guarantee all our products for the coating according to the Qualicoat / Qualanod standard.
KOMO
Our ventilation systems
glazing and shoulder are KOMO certified. Thanks to this, we guarantee a high level of quality, due to the fact that our products have been tested, positively assessed and approved by independent experts
Qualicoat / Qualanod
Tunal products are
varnished and anodized
according to the European standard
Qualicoat / Qualanod.
BSRIA
Ventilation grilles are certified – BSRIA
Technical parameters
| REGULATION LEVEL | CLASS OF SELF-EMULATION | ACOUSTICS Dn, e, w (C; Ctr) IN OPEN POSITION | TIGHTNESS IN CLOSED POSITION | TIGHTNESS IN OPEN POSITION | CORRECTION FOR GROUP | THICKNESS OF THE GROUP |
| db | Pa | Pa | mm | mm | ||
| 5 point | P3 | 29 (0;-1) | 650 | 150 | ||
| 5 point | P3 | 35 (-1;-2) | 650 | 150 | ||
| 5 point | P3 | 39 (-1;-3) | 650 | 150 | ||
| 5 point | P3 | 27 (0;-1) | 150 | 20 | 80 | 24/28/32 |
| 5 point | P3 | 26 (0;-1) | 450 | 30 | 80 | 20/24/28/32 |
| 5 point | P3 | 26 (0;-1) | 750 | 20 | 75 | 24/28/32 |
| 5 point | P0 | 27 (0;-1) | 250 | 20 | 65 | 24/28 |
| 5 point | P0 | 27 (0;-1) | 750 | 20 | 65 | 24/28 |
| 5 point | P0 | 27 (-1;-1) | 300 | 20 | 45 | 20/24/28 |
| 5 point | P3 | 27 (0;-1) | 450 | 150 | ||
| 5 point | P3 | 35 (-1;-2) | 450 | 150 | ||
| 5 point | P3 | 39 (-1;-3) | 450 | 150 | ||
| 5 point | P3 | to 53 (-1;-3)* | 750 |