Solid Demountable

Wall Thickness (mm)	Type	Rw (dB)	400-4000
96	15mm Gypsum	46	48

Single Glazing

Glass Thickness (mm)	Glass Type	Rw (dB)	400-4000
6	Toughened	32	33
6.4	Laminated	33	34
8.8	Laminated	35	36
10	Toughened	36	37
10.8	Laminated	37	38
12	Toughened	37	38
12.8	Acoustic Laminated	40	41

Double Glazing - Framed & Vision Wall (67mm Air Gap)

Glass Thickness (mm)	Glass Type	Rw (dB)	400-4000
6 + 6	Toughened and Toughened	42	44
6 + 6.4	Toughened and Laminated	44	47
8 + 6.4	Toughened and Laminated	46	49
6 + 7	Toughened and Acoustic	49	51

Double Glazing - Frameless (55mm Air gap)

Glass Thickness (mm)	Glass Type	Rw (dB)	400-4000
10 + 10	Toughened and Toughened	44	46
10 + 12	Toughened and Toughened	44	47
12 + 12	Toughened and Toughened	44	48
12 + 10.8	Toughened and Laminated	46	48
10 + 12.8	Toughened and Laminated	48	48
12 + 12.8	Toughened and Acoustic	49	52