Manufacturer

Lindner Group

Lindner Group, Arnstorf: metal ceilings, heating and cooling ceilings, raised floors, wall and ceiling linings and the MUTE+ sound absorber line.

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Datasheet

Plafotherm GK HEKDA

Name: Plafotherm GK HEKDA
Brand: Lindner Group

Description

Plasterboard heating and cooling ceiling with a heat conducting profile as a fine grid. The perforation pattern and the centre spacing of the heat conducting profile determine the absorption. Nominal cooling capacity 81.70 to 99.60 W/m² at 10 K per EN 14240, nominal heating capacity 102 to 108 W/m² at 15 K per EN 14037:2003, depending on the board type and edge configuration and referred to the active area.

Technical data

Material: Plasterboard, highly compressed or with a graphite content

Surface: seamless, smooth or perforated

Up to fire class: A2-s1,d0

Measurement data

Sound absorption

Reverberation chamber (ASTM C423 / ISO 354)· 8 variants

NRC

0.50

Frequency values

α_p per octave band

f (Hz)	125	250	500	1k	2k	4k
α_p	0.55	0.60	0.55	0.45	0.40	0.55

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		Value
12-25 Q	axis spacing 13 in, with heat-conducting profile	NRC0.50
8/18 Q	fine-grid heat-conducting profile, axis spacing 13 in	NRC0.45
8-18 R	axis spacing 13 in, with heat-conducting profile	NRC0.35
12-25 R	axis spacing 13 in, with heat-conducting profile	NRC0.45
8-18 Q	axis spacing 10 in, with heat-conducting profile	NRC0.35
12-25 R	axis spacing 10 in, with heat-conducting profile	NRC0.30
12-25 Q	axis spacing 10 in, with heat-conducting profile	NRC0.30
8-18 R	axis spacing 10 in, with heat-conducting profile	NRC0.20

Test report: H180228/A_rev00 (Messung H180228/A7a_rev00)

NRC: 0.50 (derived from ISO 354 lab data)

Measurement date: 2018-03-06

Distance: 7.9 in

Measured values as a table (8 measurements)

Plafotherm GK HEKDA: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-up	NRC	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
8-18 R · 200 mm · axis spacing 260 mm, with heat-conducting profile	0.20	0.25	0.19	0.31	0.28	0.21	0.25	0.22	0.23	0.19	0.19	0.20	0.20	0.19	0.23	0.28	0.34	0.51	0.82
12-25 R · 200 mm · axis spacing 260 mm, with heat-conducting profile	0.30	0.42	0.43	0.46	0.39	0.40	0.41	0.32	0.35	0.29	0.27	0.24	0.25	0.23	0.23	0.28	0.36	0.56	0.81
8-18 R · 200 mm · axis spacing 333 mm, with heat-conducting profile	0.35	0.34	0.26	0.45	0.44	0.38	0.42	0.39	0.37	0.37	0.34	0.34	0.35	0.35	0.36	0.39	0.45	0.57	0.79
12-25 Q · 200 mm · axis spacing 260 mm, with heat-conducting profile	0.30	0.38	0.51	0.45	0.36	0.38	0.39	0.33	0.32	0.29	0.27	0.25	0.25	0.25	0.24	0.29	0.36	0.54	0.77
8-18 Q · 200 mm · axis spacing 260 mm, with heat-conducting profile	0.35	0.41	0.50	0.50	0.40	0.40	0.41	0.33	0.35	0.30	0.29	0.28	0.27	0.27	0.29	0.34	0.44	0.60	0.90
12-25 Q · 200 mm · axis spacing 333 mm, with heat-conducting profile	0.50	0.52	0.55	0.56	0.55	0.56	0.65	0.63	0.58	0.50	0.45	0.41	0.43	0.42	0.37	0.39	0.41	0.50	0.71
12-25 R · 200 mm · axis spacing 333 mm, with heat-conducting profile	0.45	0.52	0.50	0.57	0.54	0.50	0.58	0.54	0.53	0.45	0.41	0.38	0.41	0.37	0.35	0.38	0.44	0.56	0.76
8/18 Q · 200 mm · fine-grid heat-conducting profile, axis spacing 333 mm	0.45	0.50	0.53	0.54	0.52	0.52	0.61	0.58	0.54	0.46	0.43	0.40	0.42	0.40	0.37	0.39	0.43	0.54	0.74

Measured values as a table (8 measurements)

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Last updated: 09/16/2026