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ALD

Sound attenuating exterior wall grille

Very good sound attenuation
A robust grille that withstands difficult climate conditions
Material: Supplied as standard in galvanised sheet steel to Corrosivity class C3 or aluminium to Corrosivity class C4
Possibility of special adaptations with other material options for example, stainless steel, alu-zinc or painted finish
Also available in double design for extra sound attenuation
Included in the MagiCAD database

ALDa acoustic louvre effectively reduces sound from plant rooms, etc. The sound is attenuated on passing between the absorbant splitters.

Technical description

Design

Material and surface treatment

Installation, commissioning and maintenance

Type	Width	Height	Static integral attenuation, dB to ISO 7235
Type	(mm)	(mm)	63	125	250	500	1K	2K	4K	8K
ALD-1	400, 600, 750, 900, 1050, 1200, 1350, 1500, 1650, 1800, 1950, 2100, 2250, 2400	450, 600, 750, 900, 1050, 1200, 1350, 1500, 1650, 1800, 1950, 2100, 2250, 2400	2	5	7	12	18	21	16	16
ALD-2	400, 600, 750, 900, 1050, 1200, 1350, 1500, 1650, 1800, 1950, 2100, 2250, 2400	450, 600, 750, 900, 1050, 1200, 1350, 1500, 1650, 1800, 1950, 2100, 2250, 2400	3	9	12	21	32	34	32	32

Filter

Include Accessory documents

Document	Article	Document type	Date
Acoustics Overview (pdf 2.43MB)	CLA-A, CLA-B, SORDO-A, SORDO-B, SORDO-C, SORDO-P, SORDO-PF, CALMO, CADENZA, LARGO, LENTO, MORENDO, FACILE, ALD, CTM, CTK	Brochure	08/04/2023
Acoustic Louvre (pdf 367.7kB)	ALDa	Technical catalogue	04/05/2022
Installation instruction (pdf 129.98kB)	ALDa	IOM Manual	03/05/2022
Building product declaration (pdf 177.92kB)	ALDa	Quality	24/05/2018

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