False ceilings system composed with linear stripes Type METALSCREEN LA width mm.150 or mm.200 or mm.300 (width, thickness and colour choosed by the consultant) aluminium prepainted thickness mm.0,5-0,6-0,7. The Type METALSCREEN LA stripes will be installed on supporting main carrier Art. 63 galvanized hot dipped steel thickness mm.0,6 and suspended with rigid steel galvanized hangers Art. 100 with metal snap suspension Art. 23/D, finished with perimetrical wall angle frames “L” section Art. RA with connection joint. To obtain the best soundproofing result the Type METALSCREEN LA stripes must be perforated with holes diameter Ø mm.3 or Ø mm.2 on the total surface with acoustical “TNT” non vowen textile thermal applied on the back of each stripe.