Phono insulating glass Douglass Phon
SAV2000 phono insulating solution allows to create more comfortable atmospheres from external noise intrusions.
This particular characteristic is possible because of a particular procedure applied during the assembly of two or more glass sheets. A PVB plastic film is put between the sheets enabling maximum noise vibration absorption.
Italian rules and regulations
The DPCM OF 05/12/1997 regulations impose maximum values regarding noise levels coming from indoor sources within the buildings and maximum respect of all passive noise requisites regarding all components in function so as to reduce to minimum any type of human exposition to noises.
|A||Residence and similar|
|B||Offices and similar|
|C||Hotels and guesthouses|
|D||Hospitals, clinics, old age homes|
|E||School activities on all levels|
|F||Recreational and cultural activities|
|G||Destination commercial activities|
Furthermore, the decree defines 5 parameters through which the acoustic characteristics should be evaluated within buildings by keeping also into consideration all indoor plant noises, the phono insulating capacity of all horizontal and vertical walls:
|R'w (dB)||Acoustic insulation of all separating elements (vertical part.) between distinct inhabitances|
|D2m,nT,w (dB)||Façade acoustic insulation|
|L'n,w (dB)||Trampling path noise level|
|LAeq (dB)||Sonorous level produced by indoor plants continuously in function|
|LAsmax (db)||Sonorous level produced by indoor plants in function discontinuously|
The parameters and categories define a table where limited values are indicated and which must be followed by various building components:
||D2m,nT,w (dB)||L'n,w (dB)||LAeq (dB)||LAsmax (db)|
|B, F, G||50||42||55||35||35|