In a closed room, sound waves can’t move forward freely – they collide with room space boundaries. Some of the sound is absorbed by the surface and some is reflected back. Controlling the reflections and choosing suitable reverberation time for each space are the main tasks for the acoustic designer.
Sound absorption means that when an incident sound strikes a material, it is not reflected back. Acoustic materials are designed to absorb sound that might otherwise be reflected and create an unpleasant indoor environment. To be a good absorbent, a material has to be porous and air permeable – both integral qualities of PAROC stone wool. The absorption coefficient for stone wool is ~0.90 – 1.00 (frequencies above 500 Hz) which means that 90 %–100 % of the sound will be absorbed to the material. For low frequencies, use plaster board layers with stone wool.
We have a great variety of acoustic solutions for different kind of spaces; interiors, hygienic spaces and industrial spaces. Choose your room type below to find the PARAFON product you need.