Manufacturer

SUAM Schall- & Akustikmanufaktur GmbH

SUAM Akustikmanufaktur develops and manufactures custom room-acoustic elements made from thermally bonded polyester wadding in Bad Wünnenberg (North Rhine-Westphalia). The range covers ceiling rafts (rectangular, round, free-form), baffles, wall and ceiling absorbers, acoustic art panels, the dekaBel metal cassette absorber, and the modular free-standing screen. The PES core material is binder-free, fully recyclable and meets fire class B1 per DIN 4102. Certified to OEKO-TEX Standard 100 (test no. 94.0.0541).

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SUAM Rectangular Ceiling Raft

Name: SUAM Rectangular Ceiling Raft
Brand: SUAM Schall- & Akustikmanufaktur GmbH

Rectangular Ceiling Raft

Free-hanging

Description

The rectangular SUAM ceiling raft is a horizontally suspended panel element made of thermally bonded polyester wadding. It noticeably reduces reverberation time without changing the room height. Standard dimensions up to 2400 × 1600 mm in 50 or 80 mm thickness, custom special formats up to 2200 × 1800 mm possible. Available in over 1,000 colors and with motif print. Mounting: Cable suspension with a maximum of 4 cables or screw fastening, optional eccentric washers for fine adjustment.

Technical data

Material: Thermally bonded polyester wadding, 100% recyclable PES core

Up to fire class: B1 according to DIN 4102-1 (not easily flammable, core material)

Application: Rectangular Ceiling Raft, free-hanging

Certifications: OEKO-TEX Standard 100 (test no. 94.0.0541), binder-free, formaldehyde-free, allergy-friendly, fungicidal, bactericidal, 100% recyclable

Colours: over 1,000 color variants, optional with motif print

Measurement data

Sound absorption

Reverberation chamber (ASTM C423 / ISO 354)

A_obj

4.00 m²

at 1 kHz

Frequency values

A_obj nach ISO 354 (m²)

f (Hz)	125	250	500	1k	2k	4k
A_obj	1.15	2.70	2.85	4.00	4.85	5.35

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Method (354): Measured

Room volume: 1,324 cu ft

Object area: 31 sq ft

Measurement date (354): 2020-10-07

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Measured values as a table (1 measurement)

SUAM Rectangular Ceiling Raft: 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
50 mm PES-Material · assembly height 400 mm (A_obj, m²)	–	0.48	0.60	2.32	2.46	2.76	2.89	2.70	2.80	3.07	3.46	3.96	4.52	4.70	4.95	4.90	5.35	5.35	5.35

Measured values as a table (1 measurement)

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Last updated: 09/16/2026