Acoustic performance

Noise generated by machinery and equipment in industrial plants often makes the work environment unpleasant and even harmful to hearing. To solve the problem, separate people from the machinery by building sound-insulated machine rooms and control rooms or acoustic screens.
With perforated PAROC^® acoustic panels, you ensure sufficient sound attenuation and insulation. Along with the sound control you get stylish finished surfaces for interior purposes.

Sound absorption

In their standard form, PAROC insulated panels have steel sheet facings. This means the sound absorption is actually a reflecting surface similar to a conventional sheet metal wall. PAROC^® acoustic panels have a perforated facing on one side which improves the panel's sound absorption properties.

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Paroc_Practical_sound_absorption_coefficient

Practical sound absorption coefficient αp for various structures.

To obtain better sound absorption for non-perforated PAROC panels, apply acoustic stone wool slabs as sound absorbents.

Sound insulation

When sound insulation demands are high, pay special attention to the tightness of joints with adjacent structures. The diagram below shows the sound reduction index for 50 mm, 150 mm and 240 mm thick PAROC insulated panels as well as a 100 mm thick PAROC^® acoustic panel, panel type AST^® S.

Combination of two panels or panels with other materials, can give great solutions for high requirements of sound reduction, up to 50-60 dB reduction. Be in contact with Paroc Panel System for more info.

If you know the noise level and noise spectra, you can calculate the sound insulation for the specific object. Or use the values given in the table below to obtain the sound reduction in dBA for various noise spectra.

Weighted sound reduction of PAROC insulated panels at various noise spectra, panel type AST^® S.

Panel thickness, mm	Sound reduction, dB
Panel thickness, mm	Rw	R'w + C	R'w + Ctr
50	29	27	26
80	30	27	25
100	30	27	25
120	30	27	25
150	30	27	25
200	29	28	26
240	29	28	26

Use R’w+ C for

Train noise at high and medium speeds
Road traffic over 80 km/h
Jet noise at short distances
Industrial noise (medium and high frequency)

Use R’w+ Ctr for

Street traffic noise
Train noise at low speeds
Jet noise at long distances
Industrial noise (low and medium frequency)

Acoustic wall panels

Paroc acoustic wall and ceiling panels provide sound absorption solutions - without compromising on quality. Learn more about Paroc Panel System products today.

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Contact us

panelinfo@parocpanels.com

+ 358 (0) 46 876 8716

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