Aluminium ventilation grill 449/150

linearexteriorfor outdoor use

Product description
The 449/150 is an acoustic ventilation louvre with a soundproofing Rw of 10 dB. Acoustic ventilation louvres are used in various applications to allow intensive ventilation combined with soundproofing. In residential buildings, for example, acoustic louvres are integrated into façades exposed to noise. Acoustic louvres are also used in industrial construction to dampen noise from technical installations. The louvres are made of aluminium profiles and available in all RAL colours or anodised. The blades are fitted with acoustic soundproofing material (non-combustible mineral wool).

Key features / Applications

• Acoustic ventilation louvre, soundproofing Rw: 10 dB
• Used for façades exposed to noise and to dampen noise from technical installations (industrial use)
• Construction: aluminium profiles
• Blades fitted with acoustic soundproofing material: non-combustible mineral wool
• Finishes: available in all RAL colours or anodised

Downloads / Certifications (listed on product page)

• Leaflet and technical sheet available for the 448/449 range
• Certificate air passage for 449-150
• Certificate noise reduction for 449-150
• Water resistance / warranty certificate for louvres

Technical characteristics / specifications

• Physical Free Passage (%): 37
• Soundproofing Rw (dB): 10
• Slat step (mm): 170
• Standard mesh type: -
• IP class: -
• Depth to fit (mm): 143
• Total louvre depth (mm): 155
• K-factor (entry): 14.6
• CE coefficient: 0.262
• K-factor (discharge): 19.1
• CD coefficient: 0.229
• Water resistance at 0 m/s (%): 88
• Water resistance at 0.5 m/s (%): <80
• Water resistance at 1.0 m/s (%): -
• Water resistance at 1.5 m/s (%): -
• Water resistance at 2.0 m/s (%): -
• Water resistance at 2.5 m/s (%): -
• Water resistance at 3.0 m/s (%): -
• Water resistance at 3.5 m/s (%): -