Storax Acoustic Louvre ST-445-86

Storax acoustic ventilation grilles provide optimal airflow and acoustic performance. The wall grilles comply with the standards of the Dutch Building Decree and are the solution for creating a closed façade. The acoustic grille is made from aluminum profiles and available in all RAL colors or anodized finishes. The slats are fitted with acoustic damping material (non-combustible mineral wool). Easy and invisible installation in the wall opening.

Specification

Specification text Material Made from aluminum profiles AlMgSi 0.5 (according to EN 12020-2) Standard stainless steel mesh 304 – 6 x 6 mm or mosquito mesh 304 – 2.3 x 2.3 mm on request 100% stainless Finish: natural or bronze anodized (20 micron) or powder-coated in all possible RAL, Sikkens, NCS, and Interpon colors (60-80 micron) Dimensions Slat pitch: 60 mm Installation depth: 81.5 mm Frame flange: 50 mm Minimum dimensions: 230 x 230 mm Height increments: 60 mm (distance between slats) Mounting Wall anchor no. 429 included Options Drainage channel Removable mosquito mesh Technical data Airflow (EN 13030) K-factor (intake): 16.00 K-factor (exhaust): 21.24 Ce coefficient: 0.250 Cd coefficient: 0.217 Comfort (EN ISO 140-10, EN ISO 717-1) Sound attenuation (open position): Rw(C;Ctr) 11 (-1;-2) dB Visual free area: 54% Physical free area: 34% Water tightness: B (0 m/s) Slat spacing: 150 mm Weight per m²: approx. 22 kg Sound attenuation in dB per frequency Frequency (Hz) Attenuation (dB) 63 7.1 125 4.5 250 4.0 500 6.3 1000 12.3 2000 13.5 4000 12.1

Technical specification