Name: Metal ceiling LMD-B/E/K
Brand: Lindner Group

Description

Closed metal ceiling as a band raster, hook-in or tray ceiling. The absorption is set by the perforation of the ceiling panel, an acoustic fleece on the back and optionally an acoustic insert of Insula or Acustica. Recycled content 24.4 percent, 24.7 percent for the LMD-K 420 tray ceiling.

Technical data

Material: Galvanised steel sheet

Surface: Powder coating COLOURline, MOODline deep matt, ARTline décor (not LMD-K 420), GRAPHICline digital printing

Up to fire class: A2-s1,d0

Certifications: CE per EN 13964, EPD per EN 15804, FDES in the INIES database (not LMD-K 420), TAIM Technical Manual for Metal Ceilings, VOC emission class A+, Indoor Air Comfort Gold, Oeko-Tex Standard 100 (Acustica acoustic insert)

Measured values as a table (24 measurements)

Metal ceiling LMD-B/E/K: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-up	α_w	Absorber class	100 Hz	125 Hz	160 Hz	200 Hz	250 Hz	315 Hz	400 Hz	500 Hz	630 Hz	800 Hz	1000 Hz	1250 Hz	1600 Hz	2000 Hz	2500 Hz	3150 Hz	4000 Hz	5000 Hz
Rv 1.8 - 20 · 200 mm · No, + heavy overlay	0.45	D	0.27	0.26	0.24	0.24	0.20	0.27	0.33	0.39	0.47	0.63	0.75	0.81	0.93	0.95	0.93	0.90	0.78	0.59
Rd 1.6 - 25 · 200 mm	0.70	C	0.29	0.36	0.47	0.55	0.68	0.85	0.80	0.88	0.77	0.68	0.54	0.67	0.71	0.62	0.68	0.68	0.67	0.66
Rv 1.8 - 20 · 200 mm	0.75	C	0.23	0.43	0.59	0.70	0.76	0.85	0.89	0.92	0.86	0.68	0.61	0.70	0.75	0.75	0.78	0.73	0.70	0.64
Rg 7.0 - 27 · 200 mm	0.70	C	0.24	0.32	0.45	0.50	0.66	0.76	0.80	0.89	0.81	0.68	0.51	0.62	0.72	0.63	0.68	0.67	0.65	0.66
Qg 6.0 - 30 · 200 mm	0.70	C	0.30	0.30	0.47	0.53	0.65	0.83	0.82	0.90	0.82	0.68	0.54	0.65	0.70	0.65	0.69	0.68	0.67	0.62
Rg 2.5 - 16 · 200 mm · 50 mm	1.00	A	0.36	0.66	0.79	0.91	0.98	1.02	1.00	1.00	0.95	0.90	0.94	0.97	0.97	0.95	0.92	0.92	0.90	0.88
Rg 0.7 - 4 · 200 mm	0.70	C	0.45	0.46	0.53	0.61	0.71	0.79	0.83	0.84	0.79	0.64	0.58	0.67	0.70	0.67	0.65	0.64	0.57	0.56
Rv 1.8 - 20 · 200 mm · 30 mm, + heavy overlay	0.70	C	0.22	0.20	0.26	0.31	0.38	0.47	0.65	0.80	0.85	0.95	1.01	0.98	0.98	0.99	0.96	0.96	0.87	0.82
Rg 1.6 - 13 · 200 mm	0.75	C	0.33	0.34	0.51	0.64	0.71	0.84	0.86	0.96	0.89	0.65	0.59	0.71	0.74	0.76	0.77	0.77	0.70	0.67
Rg 0.7 - 1 · 200 mm	0.45	D	0.51	0.69	0.63	0.52	0.58	0.55	0.52	0.52	0.49	0.45	0.46	0.45	0.45	0.42	0.38	0.37	0.32	0.26
Rv 3.0 - 20 · 300 mm	0.75	C	0.27	0.60	0.69	0.69	0.87	0.88	0.85	0.73	0.58	0.64	0.70	0.71	0.78	0.76	0.77	0.77	0.75	0.73
Rg 2.5 - 16 · 300 mm	0.75	C	0.22	0.40	0.51	0.80	0.84	0.83	0.85	0.71	0.54	0.68	0.73	0.72	0.79	0.81	0.83	0.81	0.82	0.91
Rg 1.8 - 5 · 200 mm	0.70	C	0.45	0.62	0.60	0.54	0.72	0.83	0.82	0.90	0.84	0.77	0.66	0.71	0.73	0.68	0.67	0.63	0.60	0.52
Rd 0.7 - 2 · 200 mm	0.60	C	0.57	0.62	0.71	0.66	0.65	0.69	0.75	0.76	0.71	0.63	0.59	0.63	0.61	0.59	0.56	0.53	0.46	0.39
Qg 6.0 - 30 · 200 mm · 20 mm	0.90	A	0.55	0.56	0.76	0.75	0.78	0.87	0.93	0.98	0.90	0.81	0.81	0.90	0.88	0.93	0.89	0.83	0.73	0.64
Rv 1.8 - 20 · 100 mm · 30 mm	1.00	A	0.30	0.33	0.54	0.65	0.72	0.86	0.96	1.08	1.04	1.09	1.06	0.99	0.92	0.96	0.97	0.97	0.95	0.92
Rg 7.0 - 27 · 200 mm · 20 mm	0.90	A	0.42	0.60	0.65	0.72	0.87	0.92	0.92	1.00	0.92	0.83	0.81	0.93	0.91	0.92	0.88	0.83	0.71	0.66
Rg 1.8 - 5 · 200 mm · 20 mm	0.70	C	0.57	0.67	0.66	0.61	0.75	0.81	0.81	0.85	0.78	0.72	0.70	0.75	0.74	0.74	0.71	0.65	0.54	0.45
Rg 0.7 - 4 · 200 mm · 20 mm	0.75	C	0.59	0.60	0.67	0.70	0.76	0.82	0.84	0.83	0.77	0.71	0.76	0.82	0.76	0.76	0.70	0.68	0.61	0.60
Rg 1.6 - 13 · 200 mm · 30 mm mineral-fibre panel	0.75	C	0.16	0.26	0.27	0.34	0.42	0.58	0.72	0.84	0.92	0.98	1.05	1.04	1.03	1.01	0.96	0.89	0.83	0.81
Rg 0.7 - 1 · 200 mm · 20 mm	0.45	D	0.62	0.66	0.65	0.53	0.58	0.52	0.51	0.48	0.46	0.45	0.47	0.47	0.44	0.42	0.37	0.35	0.29	0.27
Rd 1.6 - 25 · 200 mm · 20 mm	0.95	A	0.45	0.54	0.64	0.77	0.86	0.99	0.95	1.05	0.89	0.83	0.86	0.97	0.94	0.93	0.91	0.88	0.84	0.86
Rg 1.6 - 13 · 200 mm · 30 mm	0.90	A	0.61	0.56	0.73	0.72	0.70	0.83	0.80	0.90	0.85	0.81	0.89	0.93	0.95	0.94	0.90	0.88	0.78	0.69
Rv 1.8 - 20 · 20 mm Insula B2 / Acustica, + heavy overlay	0.70	C	0.28	0.26	0.31	0.36	0.35	0.50	0.64	0.79	0.91	1.02	1.10	1.08	1.08	1.03	0.93	0.82	0.72	0.72

Metal ceiling LMD-B/E/K

Manufacturer

Lindner Group

Description

Technical data

Measurement data

Sound absorption

Frequency values

			Value
Rg 2.5 - 16	200 mm	50 mm	α_w1.00
Rv 1.8 - 20	100 mm	30 mm	α_w1.00
Rd 1.6 - 25	200 mm	20 mm	α_w0.95
Qg 6.0 - 30	200 mm	20 mm	α_w0.90
Rg 7.0 - 27	200 mm	20 mm	α_w0.90
Rg 1.6 - 13	200 mm	30 mm	α_w0.90
Rv 1.8 - 20	200 mm	—	α_w0.75
Rg 1.6 - 13	200 mm	—	α_w0.75
Rv 3.0 - 20	300 mm	—	α_w0.75
Rg 2.5 - 16	300 mm	—	α_w0.75
Rg 0.7 - 4	200 mm	20 mm	α_w0.75
Rg 1.6 - 13	200 mm	30 mm mineral-fibre panel	α_w0.75
Rd 1.6 - 25	200 mm	—	α_w0.70
Rg 7.0 - 27	200 mm	—	α_w0.70
Qg 6.0 - 30	200 mm	—	α_w0.70
Rg 0.7 - 4	200 mm	—	α_w0.70
Rv 1.8 - 20	200 mm	30 mm, + heavy overlay	α_w0.70
Rg 1.8 - 5	200 mm	—	α_w0.70
Rg 1.8 - 5	200 mm	20 mm	α_w0.70
Rv 1.8 - 20	—	20 mm Insula B2 / Acustica, + heavy overlay	α_w0.70
Rd 0.7 - 2	200 mm	—	α_w0.60
Rv 1.8 - 20	200 mm	No, + heavy overlay	α_w0.45
Rg 0.7 - 1	200 mm	—	α_w0.45
Rg 0.7 - 1	200 mm	20 mm	α_w0.45