Due to the composition of the inner acoustic materials and the accurate empty/full ratio the Alfakel V1000 cert panels are accredited with a sound insulating performance index of Rw=23 dB, in accordance with regulations UNI EN ISO 10140-1:2010, UNI EN ISO 10140-2:2010, and UNI EN ISO 717-1:2007 (Certificate CSI 0094/DC/ACU/11).
The diagrams in Figures 1 and 2 show the values of total insulation and the sound absorption coefficient for various frequencies.
In practical terms, however, the acoustic insulation varies in function of the size of the screens and the sound characteristics of the space.
In many cases, the “jump over” effect of the sound waves can be eliminated with excellent results by applying to the surfaces the sound absorbing tiles B 208/2 hung as ceiling baffles.
Measured according to ISO R354
|10 Kg./sq.m approximately
|mm. 900 x (h) 3500 max
|blue, grey, green
|Temperatures of usage:
|– 10 + 80° C
|self-extinguishing, low flammability
The Alfakel V1000 cert sound insulating and sound absorbing panels are equipped with pivoting rollers on the top side which fit onto their sliding guides.
Each modular element is fitted with Velcro strips on the sides to fasten and unfasten the individual modules and also to attach or detach them from the supporting structure.
Upon request visual inserts in transparent polyvinyl are available
According to the use intended for the screens, they can be mounted on existing structures or on structures created specifically, either fixed or mobile.