Plastic telescopic acoustic cavity liner set with external cowl.
Plastic, telescopic acoustic cavity liner set with external cowl, for background room ventilation. Compliant with BS 5250.
As a plastic component this item is not suitable for use within the external walls of high-rise buildings requiring non-combustible materials.
For use in noisy areas to reduce the amount of noise entering the building for a more peaceful environment
External cowl protects against excessive weather conditions and alleviates air blasts through the cavity
Telescopic cavity liner contains a system of internal baffles to reduce light and draughts
Reduces sound by 40 dB with internal grille fully open and 41 dB when closed
Internal hit & miss grille manually adjusted with a sliding action allowing ventilation to be controlled as required
External water baffles prevent transfer of water across the cavity
Cowl, air brick and hit & miss grille UV stabilized to slow down the effects of sunlight
BRE verified equivalent area
As a plastic component this item is not suitable for use within the external walls of high-rise buildings requiring non-combustible materials
UV stabilized polypropylene
Cowl: 274 x 235 x 103 mm (l x h x d)
Acoustic AirLiner® with Multifix® Air Brick: 220 x 207 x 250–404 mm (w x h x l)
Hit & Miss Grille: 271 x 247 mm (l x h)
Buff/ Sand Cowl/ Multifix® Air Brick.
Terracotta Cowl/ Multifix® Air Brick.
White Cowl/ Multifix® Air Brick.
12 700 mm² (127 cm²)
|Standard product features|
UV stabilized polypropylene.
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