Mineral woolHighly absorbent

Physikalisch-Technische Bundesanstalt

Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 110

Value from the PTB table, not verified

Isover SPW/F mineral fiber insulation board with steel strips

Isover Dämmplatte – SPW / F

PTB reference data

Original description

Material properties

Manufacturer: Saint-Gobain Isover G+H AG

Thickness: 30 mm, 50 mm

Wall distance: 30 mm, 360 mm, 380 mm

ISO 354 – reverberation chamber· 3 variants

α_w

0.40

α_p per ISO 11654

f (Hz)	125	250	500	1k	2k	4k
α_p	0.35	0.25	0.30	0.40	0.40	0.35

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Dimensions: widths: 873, 885, 910, 1050 mm, Längen: 1490 bis 2500 mm

Measured values as a table (3 measurements)

Isover SPW/F mineral fiber insulation board with steel strips: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-up	α_w	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
30 mm · 4,5 kg / m² · 380 mm · Oberfläche einseitig with mattweisser PVC-Strukturfolie beschichtet	0.40	0.26	0.36	0.43	0.35	0.24	0.15	0.15	0.35	0.47	0.36	0.39	0.40	0.41	0.42	0.40	0.38	0.33	0.33
50 mm · 7,5 kg / m² · 30 mm · Oberfläche einseitig with mattweisser PVC-Strukturfolie beschichtet	0.35	0.12	0.15	0.20	0.14	0.14	0.20	0.42	0.37	0.20	0.37	0.40	0.36	0.35	0.33	0.27	0.23	0.20	0.18
50 mm · 7,5 kg / m² · 360 mm · Oberfläche einseitig with mattweisser PVC-Strukturfolie beschichtet	0.35	0.41	0.32	0.32	0.20	0.20	0.43	0.56	0.42	0.22	0.38	0.43	0.42	0.39	0.35	0.28	0.24	0.23	0.18

Measured values as a table (3 measurements)

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Last updated: 02/09/2026