INDOOR SPACE WITH SIMPLE ROOFING

70,6 dB

Coverib sheet

70,5 dB

Fibre-cement sheet

84,4 dB

Steel sheet

89,1 dB

Aluminium sheet

Aluminium and

felt insulation

89,2 dB

INDOOR SPACE WITH SANDWICH ROOFING

57,0 dB

Coverib Sheet

+ steel

60,4 dB

Coverib Sheet+

Fibre-cement

63,8 dB

Double steel

sheet

68,4 dB

Steel Fibre-cement

65,9 dB

Aluminium

Fibre-cement

INDOOR SPACE WITH PANELS

75,4 dB

Coverib Sheet

83,0 dB

Double steel

sheet