Manufacturer

BVS Akustik

BVS Akustik GmbH & Co. KG from Verl (East Westphalia) has been active in the furniture industry since 1990 and produces custom acoustic panels with CNC saws, purpose-built drilling lines and an in-house laser system. Almost all board materials are processed: solid wood, veneered, composite and decor boards, each cut, edge-finished and lacquered to the customer's specification. The range covers drilled (AKUSTIbohr), micro-perforated (AKUSTIpur), slotted (AKUSTIpan) and sound-absorbing partition elements (AKUSTItrenn), each in numerous hole patterns and build-up depths. The elements are available in fire classes B1 and B2 and, for sports halls, with certified ball-impact resistance. References include Princeton University, NYU and the Emser Therme.

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Documents

Processing guideline Measurement results 3er-Schlitz Measurement results 4er-Schlitz Certificate (formaldehyde-free, NAF)Measurement results 2er-Schlitz 12er/24er Measurement results 2er-Schlitz 16er/32er Measurement results 2er-Schlitz 8er/irreg Measurement results 3er-Schlitz 12er/24er FSC-Certificate (GFA-COC-005281, bis 30.06.2031)

Test report on request

AKUSTIpan SL Acoustic Panel

Name: AKUSTIpan SL Acoustic Panel
Brand: BVS Akustik

AKUSTIpan SL

WallCeiling

Description

AKUSTIpan SL is the premium slotted acoustic panel from BVS with a linear structure. The fine slotting on the face gives the element a modern, timeless look, while the tongue-and-groove connection between panels produces an almost joint-free appearance and quick, simple installation. Slot widths of 2, 3 and 4 mm, grids of 8, 12, 16, 24 and 32 mm and an irregular slotting that reduces the moiré effect can be freely combined with drillings of 3, 4, 8 and 10 mm on the back. The carrier board can be MDF (NAF), plywood or three-layer board; a wide spectrum of veneers, decors and coatings is available for the surface. Cuts and cut-outs are possible directly on site, and production runs up to a format of 3500 x 1000 mm. The panel becomes acoustically effective through the interplay of the slotting on the face, the drilling on the back and the cavity behind. The absorber can be tuned precisely to each project through the combination of slot width, grid and drilling. Sound absorption is determined in the reverberation room per EN ISO 354 and rated per EN ISO 11654; for design work the full third-octave curve matters alongside the single-number rating.

Technical data

Material: Carrier board: MDF (NAF), plywood or three-layer board; surface optionally with veneers, premium decors or coatings.

Up to fire class: B1 and B2 per DIN 4102 / DIN EN 13501-1

Application: Wall and ceiling cladding in interiors with design ambition.

Measurement data

Sound absorption

ISO 354 – reverberation chamber· 88 variants

Choose the look

Choose the slot pattern · web / slot width in mm

Rear drilling · Ø / pitch in mm, invisible from the front

α_w

0.95

Frequency values

α_p per ISO 11654

f (Hz)	125	250	500	1k	2k	4k
α_p	0.35	0.75	1.00	1.00	0.90	0.85

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Cavity	Insulation	Value
100 mm	30 mm	α_w0.95
200 mm	30 mm	α_w0.95
70 mm	30 mm	α_w0.85
50 mm	30 mm	α_w0.75

Absorber class: A

Test report: 24-000631

Institute: TFI Aachen GmbH

Measurement date: 2024-06-05

Perforation: 13/3 - 10/16

Measured values as a table (88 measurements)

AKUSTIpan SL Acoustic Panel: 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
12/4 - 10/16 · h=50 mm · with 30 mm insulation	0.75	C	0.20	0.16	0.27	0.36	0.47	0.54	0.74	0.86	0.98	1.04	1.10	1.11	1.09	0.95	0.91	0.85	0.86	0.98
12/4 - 10/16 · h=70 mm · with 30 mm insulation	0.85	B	0.18	0.17	0.37	0.45	0.58	0.68	0.90	1.01	1.03	1.08	1.06	1.05	0.97	0.89	0.86	0.93	0.98	1.01
12/4 - 10/16 · h=100 mm · with 30 mm insulation	0.95	A	0.20	0.26	0.50	0.59	0.76	0.93	0.98	1.05	1.07	1.07	1.04	0.96	0.88	0.90	0.96	0.93	0.92	0.96
12/4 - 10/16 · h=200 mm · with 30 mm insulation	0.95	A	0.39	0.34	0.70	0.84	0.93	1.00	1.05	0.95	0.95	0.81	0.81	0.94	0.94	0.96	0.93	0.98	0.93	1.01
12/4 - 8/16 · h=50 mm · with 30 mm insulation	0.80	B	0.17	0.14	0.32	0.38	0.49	0.59	0.76	0.83	0.94	1.02	0.99	0.99	0.97	0.88	0.81	0.79	0.83	0.97
12/4 - 8/16 · h=70 mm · with 30 mm insulation	0.85	B	0.23	0.21	0.43	0.48	0.61	0.69	0.83	0.93	0.99	0.99	0.99	0.95	0.88	0.80	0.79	0.83	0.89	0.95
12/4 - 8/16 · h=100 mm · with 30 mm insulation	0.90	A	0.29	0.28	0.54	0.59	0.73	0.87	0.95	0.95	0.99	0.95	0.93	0.88	0.80	0.81	0.85	0.82	0.83	0.89
12/4 - 8/16 · h=200 mm · with 30 mm insulation	0.85	B	0.42	0.37	0.80	0.77	0.82	0.86	0.96	0.93	0.85	0.82	0.78	0.87	0.84	0.84	0.84	0.86	0.85	0.93
13/3 - 10/16 · h=50 mm · with 30 mm insulation	0.75	C	0.18	0.17	0.29	0.33	0.47	0.58	0.78	0.87	0.94	1.04	1.09	1.10	1.06	0.96	0.86	0.86	0.86	1.04
13/3 - 10/16 · h=70 mm · with 30 mm insulation	0.85	B	0.19	0.20	0.37	0.44	0.58	0.70	0.91	1.02	1.07	1.12	1.08	1.04	0.98	0.89	0.88	0.93	0.97	0.98
13/3 - 10/16 · h=100 mm · with 30 mm insulation	0.95	A	0.29	0.30	0.51	0.57	0.73	0.92	0.97	1.05	1.05	1.07	1.03	0.93	0.86	0.86	0.91	0.91	0.84	0.84
13/3 - 10/16 · h=200 mm · with 30 mm insulation	0.95	A	0.40	0.35	0.80	0.83	0.95	1.02	1.06	0.99	0.94	0.84	0.83	0.96	0.95	0.96	0.94	0.94	0.91	0.96
13/3 - 8/16 · h=50 mm · with 30 mm insulation	0.75	C	0.18	0.17	0.32	0.38	0.48	0.55	0.77	0.84	0.98	1.00	1.01	1.02	0.97	0.87	0.80	0.77	0.78	0.94
13/3 - 8/16 · h=70 mm · with 30 mm insulation	0.85	B	0.22	0.19	0.41	0.47	0.61	0.69	0.85	0.93	0.98	1.01	0.99	0.97	0.91	0.81	0.78	0.83	0.89	0.94
13/3 - 8/16 · h=100 mm · with 30 mm insulation	0.90	A	0.26	0.27	0.55	0.62	0.76	0.87	0.94	0.99	0.95	0.96	0.91	0.88	0.82	0.81	0.84	0.81	0.83	0.86
13/3 - 8/16 · h=200 mm · with 30 mm insulation	0.85	B	0.39	0.35	0.78	0.80	0.87	0.90	0.95	0.94	0.87	0.77	0.77	0.87	0.84	0.85	0.81	0.81	0.85	0.91
14/2 - 10/16 · h=50 mm · with 30 mm insulation	0.80	B	0.20	0.16	0.28	0.38	0.49	0.60	0.75	0.86	1.02	1.08	1.12	1.05	0.98	0.84	0.79	0.69	0.72	0.82
14/2 - 10/16 · h=70 mm · with 30 mm insulation	0.85	B	0.21	0.19	0.39	0.47	0.60	0.72	1.00	1.01	1.06	1.10	1.07	0.93	0.87	0.79	0.77	0.84	0.85	0.85
14/2 - 10/16 · h=100 mm · with 30 mm insulation	0.90	A	0.24	0.26	0.49	0.58	0.77	0.96	1.03	1.02	1.03	1.04	0.99	0.90	0.81	0.83	0.87	0.80	0.76	0.78
14/2 - 10/16 · h=200 mm · with 30 mm insulation	0.90	A	0.39	0.32	0.76	0.92	0.88	0.97	1.00	0.96	0.92	0.78	0.80	0.93	0.89	0.88	0.83	0.83	0.80	0.81
14/2 - 8/16 · h=50 mm · with 30 mm insulation	0.80	B	0.17	0.14	0.31	0.37	0.49	0.61	0.81	0.83	0.97	1.03	1.01	0.98	0.89	0.79	0.72	0.68	0.75	0.87
14/2 - 8/16 · h=70 mm · with 30 mm insulation	0.80	B	0.20	0.17	0.38	0.49	0.61	0.72	0.87	0.96	1.02	0.99	0.97	0.89	0.80	0.75	0.70	0.76	0.80	0.84
14/2 - 8/16 · h=100 mm · with 30 mm insulation	0.85	B	0.30	0.29	0.53	0.61	0.73	0.90	0.92	0.93	0.96	0.95	0.88	0.82	0.75	0.74	0.76	0.75	0.76	0.77
14/2 - 8/16 · h=200 mm · with 30 mm insulation	0.80	B	0.44	0.37	0.73	0.82	0.86	0.89	0.95	0.88	0.87	0.75	0.75	0.80	0.80	0.78	0.77	0.77	0.77	0.79
28/4 - 10/16 · h=50 mm · with 30 mm insulation	0.70	C	0.17	0.14	0.33	0.36	0.49	0.56	0.78	0.80	0.92	0.93	0.91	0.88	0.79	0.69	0.63	0.60	0.59	0.74
28/4 - 10/16 · h=70 mm · with 30 mm insulation	0.75	C	0.21	0.19	0.46	0.49	0.67	0.72	0.83	0.91	0.92	0.90	0.88	0.80	0.72	0.65	0.64	0.67	0.71	0.81
28/4 - 10/16 · h=100 mm · with 30 mm insulation	0.75	C	0.29	0.28	0.56	0.58	0.72	0.83	0.89	0.87	0.88	0.82	0.80	0.75	0.69	0.65	0.67	0.65	0.64	0.71
28/4 - 10/16 · h=200 mm · with 30 mm insulation	0.75	C	0.42	0.36	0.78	0.73	0.80	0.81	0.86	0.85	0.80	0.68	0.66	0.75	0.70	0.68	0.66	0.67	0.66	0.73
28/4 - 8/16 · h=50 mm · with 30 mm insulation	0.70	C	0.18	0.16	0.37	0.40	0.53	0.59	0.71	0.73	0.79	0.80	0.78	0.70	0.67	0.57	0.53	0.52	0.55	0.66
28/4 - 8/16 · h=70 mm · with 30 mm insulation	0.65	C	0.24	0.20	0.48	0.53	0.62	0.71	0.71	0.77	0.76	0.73	0.71	0.66	0.61	0.56	0.54	0.54	0.61	0.71
28/4 - 8/16 · h=100 mm · with 30 mm insulation	0.65	C	0.26	0.28	0.56	0.56	0.67	0.72	0.73	0.70	0.76	0.72	0.67	0.65	0.59	0.55	0.55	0.55	0.56	0.65
28/4 - 8/16 · h=200 mm · with 30 mm insulation	0.65	C	0.44	0.38	0.66	0.65	0.69	0.70	0.70	0.66	0.65	0.59	0.57	0.62	0.61	0.57	0.56	0.55	0.57	0.66
29/3 - 10/16 · h=50 mm · with 30 mm insulation	0.75	C	0.18	0.17	0.32	0.38	0.51	0.61	0.75	0.81	0.91	0.95	0.92	0.86	0.79	0.68	0.62	0.61	0.62	0.77
29/3 - 10/16 · h=70 mm · with 30 mm insulation	0.75	C	0.20	0.19	0.44	0.53	0.63	0.71	0.86	0.92	0.94	0.92	0.87	0.80	0.70	0.63	0.62	0.65	0.69	0.76
29/3 - 10/16 · h=100 mm · with 30 mm insulation	0.70	C	0.28	0.29	0.58	0.59	0.67	0.83	0.90	0.90	0.92	0.85	0.80	0.73	0.65	0.62	0.64	0.59	0.58	0.64
29/3 - 10/16 · h=200 mm · with 30 mm insulation	0.75	C	0.36	0.29	0.71	0.74	0.78	0.81	0.84	0.81	0.79	0.68	0.67	0.74	0.71	0.69	0.64	0.62	0.63	0.73
29/3 - 8/16 · h=50 mm · with 30 mm insulation	0.70	C	0.19	0.17	0.35	0.39	0.49	0.55	0.72	0.73	0.80	0.82	0.78	0.69	0.64	0.57	0.53	0.52	0.57	0.70
29/3 - 8/16 · h=70 mm · with 30 mm insulation	0.65	C	0.25	0.22	0.52	0.51	0.60	0.71	0.73	0.75	0.77	0.76	0.69	0.66	0.61	0.54	0.52	0.54	0.61	0.68
29/3 - 8/16 · h=100 mm · with 30 mm insulation	0.65	C	0.32	0.33	0.55	0.56	0.61	0.74	0.73	0.70	0.73	0.69	0.66	0.60	0.56	0.52	0.54	0.53	0.54	0.61
29/3 - 8/16 · h=200 mm · with 30 mm insulation	0.60	C	0.42	0.38	0.64	0.65	0.66	0.66	0.68	0.68	0.67	0.60	0.59	0.62	0.59	0.57	0.53	0.52	0.56	0.65
30/2 - 10/16 · h=50 mm · with 30 mm insulation	0.65	C	0.19	0.16	0.34	0.43	0.54	0.59	0.80	0.84	0.93	0.92	0.87	0.79	0.70	0.58	0.53	0.47	0.48	0.64
30/2 - 10/16 · h=70 mm · with 30 mm insulation	0.65	C	0.21	0.19	0.45	0.50	0.63	0.72	0.84	0.87	0.91	0.87	0.81	0.71	0.62	0.54	0.54	0.56	0.60	0.67
30/2 - 10/16 · h=100 mm · with 30 mm insulation	0.65	C	0.25	0.26	0.55	0.58	0.72	0.87	0.84	0.88	0.84	0.80	0.74	0.66	0.60	0.58	0.57	0.55	0.53	0.61
30/2 - 10/16 · h=200 mm · with 30 mm insulation	0.65	C	0.42	0.38	0.76	0.78	0.77	0.79	0.81	0.78	0.76	0.65	0.63	0.69	0.64	0.61	0.57	0.55	0.54	0.61
30/2 - 8/16 · h=50 mm · with 30 mm insulation	0.60	C	0.20	0.19	0.37	0.38	0.51	0.57	0.70	0.73	0.74	0.75	0.71	0.63	0.60	0.53	0.48	0.45	0.47	0.62
30/2 - 8/16 · h=70 mm · with 30 mm insulation	0.60	C	0.23	0.21	0.48	0.49	0.59	0.68	0.71	0.76	0.77	0.73	0.68	0.60	0.54	0.48	0.49	0.50	0.59	0.66
30/2 - 8/16 · h=100 mm · with 30 mm insulation	0.60	C	0.33	0.33	0.55	0.54	0.61	0.72	0.71	0.70	0.71	0.67	0.62	0.58	0.51	0.51	0.50	0.50	0.51	0.56
30/2 - 8/16 · h=200 mm · with 30 mm insulation	0.60	C	0.44	0.37	0.66	0.64	0.68	0.65	0.67	0.64	0.62	0.57	0.58	0.59	0.55	0.51	0.49	0.50	0.52	0.61
6/2 - 10/32 · h=50 mm · with 30 mm insulation	0.80	B	0.16	0.15	0.31	0.38	0.50	0.58	0.80	0.87	1.01	1.10	1.10	1.08	1.05	0.91	0.83	0.79	0.80	1.02
6/2 - 10/32 · h=70 mm · with 30 mm insulation	0.90	A	0.19	0.18	0.39	0.42	0.61	0.71	0.91	1.03	1.07	1.10	1.08	1.00	0.93	0.86	0.84	0.89	0.92	0.92
6/2 - 10/32 · h=100 mm · with 30 mm insulation	0.90	A	0.28	0.27	0.53	0.51	0.70	0.88	1.01	1.09	1.05	1.03	0.98	0.92	0.84	0.85	0.90	0.83	0.78	0.79
6/2 - 10/32 · h=200 mm · with 30 mm insulation	0.90	A	0.38	0.30	0.82	0.90	0.93	0.99	1.05	0.98	0.95	0.82	0.81	0.95	0.92	0.90	0.88	0.88	0.86	0.89
6/2 - 8/32 · h=50 mm · with 30 mm insulation	0.80	B	0.16	0.15	0.30	0.36	0.48	0.59	0.80	0.88	0.99	1.06	1.03	0.99	0.95	0.84	0.79	0.74	0.78	0.92
6/2 - 8/32 · h=70 mm · with 30 mm insulation	0.85	B	0.20	0.18	0.39	0.50	0.62	0.73	0.89	0.99	1.03	1.00	1.00	0.94	0.85	0.77	0.77	0.81	0.85	0.91
6/2 - 8/32 · h=100 mm · with 30 mm insulation	0.85	B	0.28	0.29	0.56	0.60	0.70	0.94	0.93	0.98	1.00	0.95	0.93	0.83	0.77	0.76	0.81	0.77	0.77	0.76
6/2 - 8/32 · h=200 mm · with 30 mm insulation	0.85	B	0.39	0.32	0.81	0.75	0.85	0.87	0.95	0.91	0.88	0.77	0.77	0.87	0.82	0.83	0.79	0.81	0.81	0.85
irreg./2 - 10/16 · h=50 mm · with 30 mm insulation	0.80	B	0.16	0.13	0.29	0.34	0.51	0.59	0.83	0.91	0.98	1.04	1.03	0.98	0.88	0.78	0.70	0.65	0.67	0.80
irreg./2 - 10/16 · h=70 mm · with 30 mm insulation	0.80	B	0.19	0.16	0.42	0.49	0.60	0.73	0.92	1.00	1.02	1.01	0.99	0.88	0.80	0.69	0.68	0.73	0.74	0.79
irreg./2 - 10/16 · h=100 mm · with 30 mm insulation	0.80	B	0.28	0.26	0.54	0.57	0.74	0.92	0.94	0.98	0.97	0.95	0.89	0.81	0.74	0.74	0.75	0.69	0.68	0.72
irreg./2 - 10/16 · h=200 mm · with 30 mm insulation	0.80	B	0.38	0.36	0.81	0.85	0.86	0.94	0.97	0.85	0.86	0.77	0.75	0.85	0.82	0.78	0.73	0.71	0.68	0.69
irreg./2 - 4/8 · h=50 mm · with 30 mm insulation	0.65	C	0.20	0.18	0.38	0.42	0.49	0.52	0.61	0.63	0.65	0.64	0.64	0.60	0.58	0.54	0.53	0.52	0.57	0.67
irreg./2 - 4/8 · h=70 mm · with 30 mm insulation	0.60	C	0.25	0.21	0.48	0.48	0.56	0.58	0.62	0.65	0.63	0.63	0.61	0.58	0.56	0.54	0.53	0.56	0.59	0.69
irreg./2 - 4/8 · h=100 mm · with 30 mm insulation	0.60	C	0.32	0.34	0.51	0.50	0.57	0.60	0.61	0.60	0.62	0.60	0.58	0.58	0.55	0.52	0.54	0.54	0.56	0.60
irreg./2 - 4/8 · h=200 mm · with 30 mm insulation	0.55	D	0.38	0.34	0.52	0.53	0.55	0.58	0.55	0.55	0.58	0.55	0.53	0.57	0.56	0.52	0.53	0.53	0.54	0.63
irreg./2 - 8/16 · h=50 mm · with 30 mm insulation	0.75	C	0.18	0.15	0.34	0.40	0.52	0.58	0.77	0.83	0.92	0.95	0.91	0.86	0.81	0.70	0.62	0.61	0.63	0.76
irreg./2 - 8/16 · h=70 mm · with 30 mm insulation	0.75	C	0.23	0.20	0.41	0.49	0.60	0.75	0.85	0.87	0.91	0.87	0.84	0.79	0.70	0.64	0.61	0.65	0.69	0.75
irreg./2 - 8/16 · h=100 mm · with 30 mm insulation	0.75	C	0.34	0.32	0.55	0.60	0.71	0.84	0.88	0.85	0.85	0.83	0.81	0.75	0.66	0.64	0.66	0.63	0.64	0.69
irreg./2 - 8/16 · h=200 mm · with 30 mm insulation	0.75	C	0.50	0.43	0.75	0.61	0.77	0.84	0.85	0.79	0.76	0.69	0.70	0.73	0.71	0.69	0.65	0.65	0.69	0.67
irreg./3 - 10/16 · h=50 mm · with 30 mm insulation	0.80	B	0.16	0.15	0.29	0.38	0.49	0.58	0.80	0.87	0.98	1.04	1.03	1.02	0.98	0.86	0.77	0.71	0.73	0.86
irreg./3 - 10/16 · h=70 mm · with 30 mm insulation	0.85	B	0.20	0.19	0.40	0.50	0.63	0.77	0.91	0.97	1.04	1.05	1.01	0.94	0.86	0.77	0.75	0.79	0.81	0.85
irreg./3 - 10/16 · h=100 mm · with 30 mm insulation	0.85	B	0.27	0.27	0.54	0.57	0.70	0.89	0.93	1.00	0.99	0.97	0.94	0.84	0.77	0.76	0.80	0.73	0.71	0.75
irreg./3 - 10/16 · h=200 mm · with 30 mm insulation	0.85	B	0.45	0.38	0.82	0.86	0.92	1.02	0.96	0.88	0.91	0.78	0.76	0.86	0.87	0.85	0.81	0.80	0.78	0.84
irreg./3 - 4/8 · h=50 mm · with 30 mm insulation	0.65	C	0.20	0.18	0.39	0.44	0.49	0.56	0.62	0.63	0.66	0.65	0.64	0.61	0.59	0.56	0.54	0.53	0.58	0.68
irreg./3 - 4/8 · h=70 mm · with 30 mm insulation	0.60	C	0.24	0.20	0.52	0.51	0.57	0.61	0.63	0.65	0.67	0.65	0.62	0.59	0.56	0.54	0.53	0.55	0.62	0.72
irreg./3 - 4/8 · h=100 mm · with 30 mm insulation	0.60	C	0.32	0.31	0.53	0.51	0.57	0.61	0.61	0.59	0.62	0.61	0.58	0.57	0.55	0.53	0.54	0.52	0.55	0.63
irreg./3 - 4/8 · h=200 mm · with 30 mm insulation	0.55	D	0.37	0.33	0.56	0.54	0.57	0.58	0.56	0.56	0.58	0.54	0.52	0.57	0.56	0.54	0.54	0.56	0.58	0.63
irreg./3 - 8/16 · h=50 mm · with 30 mm insulation	0.75	C	0.20	0.18	0.31	0.39	0.47	0.59	0.78	0.82	0.90	0.96	0.92	0.89	0.84	0.75	0.67	0.65	0.68	0.85
irreg./3 - 8/16 · h=70 mm · with 30 mm insulation	0.80	B	0.22	0.19	0.43	0.49	0.60	0.74	0.82	0.88	0.90	0.91	0.89	0.82	0.74	0.67	0.65	0.67	0.75	0.80
irreg./3 - 8/16 · h=100 mm · with 30 mm insulation	0.80	B	0.27	0.27	0.55	0.57	0.69	0.82	0.85	0.86	0.89	0.85	0.82	0.77	0.71	0.68	0.69	0.68	0.70	0.76
irreg./3 - 8/16 · h=200 mm · with 30 mm insulation	0.75	C	0.40	0.36	0.75	0.73	0.81	0.87	0.82	0.79	0.78	0.72	0.67	0.75	0.74	0.73	0.67	0.69	0.73	0.78
irreg./4 - 10/16 · h=50 mm · with 30 mm insulation	0.75	C	0.17	0.17	0.30	0.36	0.46	0.58	0.77	0.84	0.94	1.03	1.05	1.06	0.99	0.89	0.78	0.77	0.78	0.93
irreg./4 - 10/16 · h=70 mm · with 30 mm insulation	0.85	B	0.21	0.19	0.41	0.47	0.62	0.73	0.88	0.95	1.06	1.05	1.05	0.96	0.90	0.83	0.76	0.85	0.88	0.89
irreg./4 - 10/16 · h=100 mm · with 30 mm insulation	0.85	B	0.26	0.26	0.56	0.58	0.67	0.85	0.93	1.00	0.99	0.98	0.94	0.88	0.80	0.79	0.82	0.80	0.74	0.78
irreg./4 - 10/16 · h=200 mm · with 30 mm insulation	0.85	B	0.45	0.39	0.89	0.84	0.88	0.96	0.97	0.91	0.90	0.81	0.77	0.89	0.87	0.87	0.84	0.85	0.84	0.89
irreg./4 - 8/16 · h=50 mm · with 30 mm insulation	0.80	B	0.18	0.16	0.33	0.38	0.50	0.55	0.75	0.81	0.90	0.93	0.92	0.89	0.84	0.77	0.72	0.67	0.73	0.83
irreg./4 - 8/16 · h=70 mm · with 30 mm insulation	0.80	B	0.22	0.21	0.46	0.51	0.62	0.72	0.83	0.88	0.91	0.91	0.90	0.85	0.81	0.71	0.69	0.72	0.78	0.84
irreg./4 - 8/16 · h=100 mm · with 30 mm insulation	0.80	B	0.33	0.32	0.56	0.55	0.69	0.86	0.85	0.89	0.89	0.85	0.83	0.75	0.72	0.69	0.71	0.68	0.67	0.72
irreg./4 - 8/16 · h=200 mm · with 30 mm insulation	0.80	B	0.38	0.38	0.74	0.71	0.82	0.87	0.84	0.80	0.80	0.73	0.69	0.77	0.76	0.77	0.72	0.74	0.76	0.82

Measured values as a table (88 measurements)

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Last updated: 16/09/2026