False ceiling acoustic panel LAŌ 4.2.4

Douglas firsolid woodoak

Short description
Solid wood acoustic panel designed for suspended ceilings with standard T24 grid. Removable panels for maintenance; suited to commercial and institutional projects requiring Class A acoustic performance.

A wooden ceiling

• Quick and simple system for installation and removal
• Can be installed by a single operator

Tile / Grid
1199 x 600 mm panel designed for standard T24 grid at 1200 mm module spacing.

Invisible frame
Assembly conceals the framework and ensures precise panel alignment. Installation is performed on black T24 framing with a maximum uniform load of 13.5 kg/m2, distributed in accordance with applicable standards and good practice. Laudescher does not supply all structural elements.

Installation
Patented system allows installation from below without entering the plenum. System accepts addition of standard acoustic tiles (not included); recommended sequence: install insulation first, then attach Laō panels in a single, quick movement.

Removable panels
Laō panels are removable to enable easy access for maintenance and service.

Wide choice of models and finishes

• 6 finger-jointed pine finishes and 1 solid pine finish
• 6 edged slat models and 6 flat slat models

Dimensions and slat geometry
Panel dimensions: 1199 x 600 mm
Slat cross-section: 20 mm (face) x 42 mm (height)
Slat spacing: 44 mm
Center-to-center distance of slats: 86 mm
Rear black edge counter-slats: 20 mm (face) x 42 mm (height)
Rear black central counter-slats: 20 mm (face) x 28 mm (height)
Total thickness: 52 mm
Surface mass (pine): 7.20 kg/m2
Openness: 51 %

Acoustic performance
Weighted sound absorption index: αw = 0.90* (Absorption class A). Acoustic data (αp, αw, absorption class) calculated per ISO 11654 (Laō + LR 20 mm acoustic infill on E316 mm plenum). Absorption measured according to ISO 354.

Finish / Reaction to fire
Depending on finish: Euroclass B-s1,d0 or B-s2,d0.

Fitting system
Installed on T24 framework. In compliance with NF EN 13964 and DTU 58-1.

Rear surface
Acoustic mineral wool tiles surfaced with black fleece (format 600 x 600 mm; 20 or 22 mm thickness) — 2.4 Kg/m2 facing. Not supplied by Laudescher.

Environmental indicators

• Production stage (finger-jointed pine): -6.17 kg CO2 eq/m2
• IC component (finger-jointed pine): -0.43 kg CO2 eq/m2

Wood and finish

• Finger-jointed pine slats: fire-retardant varnish finish Euroclass B-s2,d0 with protective varnish
• Available finishes (examples): Natural, Douglas, Oak, White oak, Honey, White
• Natural solid pine slat: autoclave fire treatment Euroclass B-s1,d0

Caractéristiques / spécifications techniques

• Model: Laō 4.2.4
• Panel format: 1199 x 600 mm (for T24 grid)
• Slat cross-section: 20 x 42 mm (face x height)
• Slat spacing: 44 mm; center distance: 86 mm
• Total thickness: 52 mm
• Surface mass (pine): 7.20 kg/m2
• Openness: 51 %
• Maximum uniform load on T24 framing: 13.5 kg/m2
• Acoustic: αw = 0.90 (Absorption class A) — tested per ISO 354 / ISO 11654
• Fire classification: Euroclass B-s1,d0 or B-s2,d0 depending on finish
• Installation: Patented system allowing installation from below; installation on T24 framework per NF EN 13964 and DTU 58-1
• Panels removable for maintenance
• Complementary acoustic tiles and some structural elements not supplied
• Available finishes: finger-jointed pine (6 finishes), 1 solid pine finish; multiple slat model variants (edged and flat)