False ceiling acoustic panel LINEA 4.2.1

firsolid woodoak

Short description
Solid wood acoustic panel for suspended ceilings

Overview
Linea 4.2.1 is a solid wood acoustic panel designed for suspended ceilings. The panels are available in two installation versions and multiple wood species and finishes.

Versions

• To be installed on T24 grid
• To be screwed onto metal or wooden frame

Dimensions & structural data
Panel dimensions: 2495 x 600 mm (screw-on only); 1880 x 600 mm; 1265 x 600 mm
Slat cross-section: 42 mm (face) x 20 mm (height)
Slat spacing: 18 mm
Centre distance of slats: 60 mm
Black rear counter-slats: 34 x 45 mm
Total thickness: 55 mm
Openness percentage: 30 %

Acoustic performance
Weighted index: αw = 0.55
Absorption class: Class D
Sound absorption data calculated in compliance with ISO 11654 (LINEA + LR 20mm acoustic complement on E250mm plenum).

Finish / Reaction to fire
Fire-retardant, Euroclass standard B-s1, d0 or B-s2, d0 depending on the type of wood and finish.

Installation
Installation on T24 grid or by screwing – in accordance with NF EN 13964 – in accordance with DTU 58-1.

Back panel
Rigid acoustic rockwool slabs (2.4 kg/m²), covered with black fleece finish (size: 600 x 600 mm; thickness: 20 or 22 mm). Not supplied by Laudescher.

Wood species

• Silver fir
• Pine (including jointed pine)
• Oak

Slat finishes
Varnish finish

• Clear varnish

Fire-treated finishes

• Natural
• Douglas
• Oak
• White oak
• Honey

Wax color finishes

• White
• Douglas
• Oak
• White oak
• Green
• Cenza
• Wenge
• Black

Other information
Other colours available on request. Clear varnish can be added for sensitive environments.

Available documents
Product sheet 4.2.1; Acoustic certificate 4.2.1; LINEA color chart; Cradle to Cradle™ LINEA certificate.

Technical specifications

• Panel dimensions: 2495 x 600 mm (screw-on only); 1880 x 600 mm; 1265 x 600 mm
• Slat cross-section: 42 mm (face) x 20 mm (height)
• Slat spacing: 18 mm
• Centre distance of slats: 60 mm
• Black rear counter-slats: 34 x 45 mm
• Total thickness: 55 mm
• Wood species: Silver fir, Pine, Oak
• Area density (silver fir): 8.9 kg/m2
• Area density (pine): 11.9 kg/m2
• Area density (oak): 13.8 kg/m2
• Openness percentage: 30 %
• Acoustic: αw = 0.55, Absorption class D (ISO 11654, with LR 20mm acoustic complement on E250mm plenum)
• Reaction to fire: Euroclass B-s1, d0 or B-s2, d0 depending on wood/finish
• Installation: On T24 grid or by screwing (NF EN 13964, DTU 58-1)
• Back panel (not supplied): Rigid rockwool slabs 2.4 kg/m², black fleece, 600 x 600 mm, thickness 20 or 22 mm