LRA
Product and applications
Sandwich panel with a mineral wool core and pre-lacquered galvanized steel surfaces, featuring one perforated metal face. Designed for applications requiring sound insulation and/or sound absorption. Typical uses include soundproofing for commercial spaces, offices, industrial facilities, acoustic booths, and more. LRA panels are suitable for use in both partition walls and ceilings.
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Technical details
Useful width : 1,150 mm
Minimum length : 2.0 m
Insulating core density : 120 kg/m3
Maximum manufacturing length : 12.5 m
Thickness (A) : 60 | 80 | 100 | 125 | 150 mm
Acoustic properties
Acoustic insulation : Global weighted sound reduction index A (RA): 32,1 dBA | Weighted sound reduction index Rw (C;Ctr): 33 (-2; -5) dB | Overall sound reduction index, A-weighted, for dominant exterior noise from cars, Ratr: 27,8 dBA
Acoustic absorption : Weighted sound absorption coefficient (αw): 0,95 | Sound absorption class: A
Note The acoustic properties indicated apply only to thicknesses equal to or greater than 80 mm.