Acoustic glazed units

Protection against noise

Protection against noise is one of the most important issues in our lives. The condition of assuring appropriate comfort and sometimes living in a given place is the assurance of a low level of noise.

Our subjective perception of noise is subject to the following principle: if the level of noise in a room is reduced by 10 decibels with relation to that outside, we get the impression that it is reduced by half. Noise protection must be applied everywhere where noise cannot be completely eliminated. In such applications we are faced with acoustic double glazed units.

Acoustic double glazed units are constructed basing on the asymmetry of the assembled panes of glass, flexible bonding of the panes, and the use of attenuation gases in the space between the panes. Acoustic double glazed units can achieve the acoustic insulation factor R_w = 30 – 53 dB, depending on the type of unit. Before choosing a suitable unit, the source of noise should always be specified and other influential factors should be identified. Therefore, in all cases customers should contact us during an early planning stage, so that all specific requirements for the glass can be taken into consideration by our well qualified staff.

When defining the source of noise we use the so-called acoustic insulation coefficient R_w and corrective coefficients C and C_tr. Rw states the number of decibels suppressed by the glass and does not describe the frequency band but gives an average suppression value within the 100 and 3150 Hz band. PRESS GLASS possesses certification for sound absorbing glass with an acoustic insulation factor ranging between 31 dB and 51 dB.

Structure and coefficients

of acoustic glazed units produced by PRESS GLASS and confirmed by certification

Table acoustic glazed units

Structure [mm]	Type of used gas	Acoustic insula- tion coef- ficient Rw [dB]	C [dB]	C_tr [dB]	Acoustic insulation coefficient at average [Hz]R [dB]
T-Thermofloat					125	250	500	1k	2k	4k
4T/10 Termo/4/10 Termo/4T	Argon	31	-1	-5	24	19	27	42	50	46
4/16/4T	Argon	31	-2	-5	25	16	27	41	46	43
6/12/6T	Argon	33	-1	-5	22	19	30	41	38	50
4T/12/4/12/4T	Argon	33	-2	-5	18	20	29	41	51	45
6/16/4T	Argon	34	-1	-5	26	24	31	45	39	44
6,4 (VSG 33.1)/16/4T	Argon	34	-1	-5	21	22	31	45	44	48
6,4 (VSG 33.1)/12/6,4T (VSG 33.1T)	Argon	35	-2	-6	22	20	32	43	41	55
6T/12/6/12/6T	Argon	35	-2	-7	14	25	34	45	40	56
6/16/6,4T (VSG 33.1T)	Argon	35	-3	-7	22	18	34	43	38	51
6T/12/3/12/4T	Argon	35	-2	-7	20	24	31	45	45	47
4T/12/4/12/6,4T (VSG 33.1T)	Argon	35	-1	-6	16	25	32	47	50	55
12 Float	–	35	-1	-3	29	30	35	31	39	49
6,4T (VSG 33.1T)/12/6/12/4T	Argon	36	-2	-6	21	25	32	46	46	53
6T/12/4/12/4T	Argon	36	-2	-6	18	26	32	47	48	48
6T/12/5/12/4T	Argon	36	-2	-6	20	24	32	45	45	49
8/16/4T	Argon	36	-2	-6	26	24	34	43	44	46
8/18/4T	Argon	36	-1	-5	24	25	34	43	45	48
8/20/5T	Argon	36	-1	-5	23	25	33	43	40	50
8,8T (VSG 44.2T)/12/4/12/4T	Argon	36	-2	-7	20	24	36	47	51	54
8/20/4T	Argon	37	-2	-6	24	26	34	43	45	47
8,8 (VSG 44.2)/16/4T	Argon	37	-1	-5	28	26	35	44	47	51
8/16/6,8T (VSG 33.2T)	Argon	37	-2	-6	18	24	38	44	40	56
8T/12/6/12 /6T	Argon	37	-2	-6	16	25	39	46	36	56
8/16/8,8T (VSG 44.2T)	Argon	37	-2	-5	26	25	36	43	40	54
6,4T (VSG 33.1T) Acoustic/12/6/12/4T	Argon	37	-2	-6	18	25	35	50	56	57
10/16/4T	Argon	37	-3	-7	27	26	35	40	48	50
6,4 (VSG 33.1T)/12/4/12/6,4 (VSG 33.1T)	Argon	37	-3	-8	12	27	35	47	43	59
15 Float	–	37	-1	-3	33	32	34	32	44	52
12,8 (VSG 66.2)	–	37	-1	-3	30	31	35	34	41	51
8,4 (VSG 44.1)/16/6T	Argon	38	-3	-7	26	28	38	46	38	51
8,8 (VSG 44.2)/12/8,8T (VSG 44.2T)	Argon	38	-2	-6	24	26	36	44	44	61
8/14/6T	Argon	38	-1	-5	22	28	39	44	38	51
8T/12/4/12/6T	Argon	38	-1	-5	21	29	37	43	40	56
8,4 (VSG 44.1) Acoustic/16/4T	Argon	39	-1	-5	27	26	36	49	53	55
16,8 (VSG 88.2)	–	39	-1	-3	33	34	35	35	46	56
8,8 (VSG 44.2)/16/6T	Argon	39	-2	-6	27	28	38	46	42	56
8,8 (VSG 44.2)/20/6T	Argon	39	-2	-5	24	29	40	45	38	54
10/12/6/12/4	Argon	39	-2	-7	18	29	36	42	48	54
8,8T (VSG 44,2T)/12/4/12/6,4T (VSG 33.1T)	Argon	39	-2	-8	17	28	39	49	44	62
8T/12/8/12/6,8T (VSG 33.2T)	Argon	39	-3	-8	15	27	38	48	44	63
8,8T (VSG 44.2T)/12/4/12/8,8T (VSG 44.2T)	Argon	39	-3	-8	19	29	39	47	48	64
12,8 (VSG 66.2) Acoustic	–	40	-1	-3	28	32	37	41	41	50
6,4 (VSG 33.1) Acoustic/16/6T	Argon	40	-2	-6	25	26	37	49	47	58
9,5 (VSG 44.4)/16/6T	Argon	40	-2	-6	27	32	39	45	41	54
12,8 (VSG 66.2)/12/6T	Argon	40	-1	-5	27	30	37	43	43	57
8,8 (VSG 44.2)/16/6,4T (VSG 33.1T)	Argon	40	-2	-6	26	26	39	47	42	56
6/12/8,4T (VSG 44.1T) Acoustic	Argon	40	-2	-6	29	27	37	48	47	56
6T/12/6/12/8,8T (VSG 44.2T)	Argon	40	-2	-7	20	29	39	46	43	57
9,5T (44.4T)/12/6/12/6T	Argon	40	-2	-7	19	28	40	50	42	59
6T/14/4/14/ 9,5T (VSG 44.4T)	Argon	40	-2	-8	17	32	40	49	43	60
6,4 (VSG 33.1) Acoustic/12/6,4T (VSG 33.1T) Acoustic	Argon	40	-1	-5	29	27	37	51	59	59
6/16/10,8T (VSG 55.2T)	Argon	40	-1	-4	25	31	36	43	41	53
8/20/8,8T (VSG 44.2T)	Argon	40	-1	-4	27	31	40	44	42	54
8,8T (VSG 44.2T)/12/6/12/8,8T (VSG 44.2T)	Argon	40	-3	-8	20	30	39	47	46	63
10/16/12,8T (VSG 66.2T)	Argon	41	-1	-4	28	34	41	38	45	58
13,5 (VSG 66.4)/16/12T	Argon	41	-1	-4	32	34	40	39	50	65
6/20/10,8T (VSG 55.2T)	Argon	41	-1	-5	24	34	39	44	42	50
8,4 (VSG 44.1) Acoustic/16/6T	Argon	41	-2	-6	23	28	40	49	46	59
8,4 (VSG 44.1) Acoustic/12/8T	Argon	41	-2	-6	29	28	38	48	49	60
8,8 (VSG 44.2) Acoustic/16/6,8T (VSG 33.2T)	Argon	41	-2	-6	21	30	42	48	48	55
8/16/10,8T (VSG 55.2T)	Argon	41	-1	-4	27	31	42	43	41	54
6T/12/4/12/8,8T (VSG 44.2T)	Argon	41	-3	-8	16	33	41	51	51	60
6T/12/6/12/8,8T (VSG 44.2T) Acoustic	Argon	41	-3	-8	17	31	41	51	49	59
16,8 (VSG 88.2) Acoustic	–	42	0	-3	31	35	39	41	46	54
13,5 (VSG 66.4)/16/8T	Argon	42	-1	-5	31	33	40	42	46	62
8,8 (VSG 44.2) Acoustic/16/6T	Argon	42	-3	-7	26	30	40	50	47	54
8,8 (VSG 44.2) Acoustic/20/6T	Argon	42	-2	-6	23	30	42	49	44	56
6/16/10,8T (VSG 55.2 T) Acoustic	Argon	42	-3	-7	26	29	42	50	47	58
8/16/8,8T (VSG 44.2 T) Acoustic	Argon	42	-2	-6	24	29	40	49	49	59
12,8 (VSG 66.2) Acoustic/12/8T	Argon	42	-2	-6	25	32	41	44	45	57
8T/12/4/12/10,8T (VSG 55.2T)	Argon	42	-2	-6	21	33	42	44	44	63
10/24/8,8T (VSG 44.2T)	Argon	42	-1	-4	30	35	42	42	44	61
6T/12/4/12/8,8T (VSG 44.2T) Acoustic	Argon	42	-1	-6	23	33	39	51	50	60
8/20/10,8 (VSG 55.2)	Argon	42	-2	-5	25	33	40	43	42	58
12,8 (VSG 66.2) Acoustic/12/10T	Argon	43	-1	-5	28	36	43	43	47	57
10/14/16,8T (VSG 88.2T)	Argon	43	-2	-4	29	38	42	38	45	56
6/20/10,8T (VSG 55.2T) Acoustic	Argon	43	-2	-6	25	34	43	50	45	58
8,8 (VSG 44.2) Acoustic/12/8,8T (VSG 44.2T)	Argon	43	-2	-6	26	32	42	51	54	61
12,8 (VSG 66.2)/12/8,8T (VSG 44.2T)	Argon	43	-2	-6	26	32	42	47	48	57
12,8T (VSG 66.2T)/12/6/12/6T	Argon	43	-1	-6	27	34	41	47	45	61
6T/12/6/12/10,8T (VSG 55.2T)	Argon	43	-2	-7	21	33	43	51	48	57
8T/12/6/12/10,8T (VSG 55.2T)	Argon	43	-2	-6	24	34	41	46	47	60
9,5 (VSG 44.4)/16/12,8T (VSG 66.2T)	Argon	43	-2	-7	25	35	43	44	46	62
8T/12/6/12/8.8T (44.2T)	Argon	43	-3	-8	19	33	44	48	49	56
8T/12/6/12/8,8T (VSG 44.2T) Acoustic	Argon	43	-2	-7	23	31	42	50	51	65
16,8 (VSG 88.2) Acoustic/12Ar/10T	Argon	44	-1	-4	30	39	43	42	48	57
8/16/10,8T (VSG 55.2T) Acoustic	Argon	44	-3	-7	27	32	43	49	47	58
8/20/8,4T (VSG 44.1T) Acoustic	Argon	44	-2	-6	29	31	43	49	50	57
12,8T (VSG 66.2T)/16/4/16/6T	Argon	44	-2	-6	30	37	42	46	45	56
8,8T (VSG 44.2T) Acoustic/12/6/10/10	Argon	44	-3	-8	24	34	43	49	52	64
8T/12/6/12/10,8T (VSG 55.2T) Acoustic	Argon	44	-2	-7	23	32	43	49	47	65
8T/12/8/12/10,8T (VSG 55.2T)	Argon	44	-3	-7	21	33	45	50	48	57
8T/16/6/16/12,8T (VSG 66.2T)	Argon	45	-1	-5	29	38	45	43	48	58
9,5T (VSG 44.4T)/14/4/14/9,5T (VSG 44.4T) Acoustic	Argon	45	-2	-7	27	35	45	52	51	65
10,8 (VSG 55.2) Acoustic/12/8,8T (VSG 44.2T) Acoustic	Argon	45	-2	-7	30	33	43	53	57	67
10,8T (VSG 55.2) Acoustic/16/6/16/8T	Argon	45	-2	-7	27	33	44	51	51	67
10/16/8,8T (VSG 44.2T) Acoustic	Argon	45	-2	-6	27	36	44	47	52	60
10/16/12,8T (VSG 66.2T) Acoustic	Argon	45	-1	-4	33	36	44	46	48	57
9,5 (VSG 44.4)/20/8,8T (VSG 44.2T) Acoustic	Argon	46	-3	-7	29	36	43	50	52	60
10T/12/6/12/12,8T (VSG 66.2T) Acoustic	Argon	46	-2	-6	28	38	45	46	49	67
8T/16/6/16/12,8T (VSG 66.2T) Acoustic	Argon	46	-2	-6	25	36	45	49	50	60
10/20/8,8T (VSG 44.2T) Acoustic	Argon	46	-1	-5	27	35	44	48	54	60
10/20/10,8T (VSG 55.2T) Acoustic	Argon	46	-1	-4	33	37	44	47	49	57
12,8 (VSG 66.2) Acoustic/16/8,8T (VSG 44.2T) Acoustic	Argon	47	-2	-7	26	39	46	51	54	61
11,5 (VSG 55.4)/20/13,5 (VSG 66.4)	Argon	47	-1	-4	38	39	46	46	51	68
12,8T (VSG 66.2T)/16/4/16/9,5T (VSG 44.4T)	Argon	47	-1	-4	32	39	46	47	49	61
13,5T (VSG 66.4T) Acoustic/14/12,8T (VSG 66.2T) Acoustic	Argon	48	-2	-6	28	39	48	51	52	60
8,8T (VSG 44.2T) Acoustic/12/6/12/12.8T (VSG 66.2T) Acoustic	Argon	48	-3	-8	24	40	47	53	55	60
12,8T (VSG 66.2T)/16/4/16/27,8T P8B	Argon	48	-1	-3	39	42	46	44	54	64
15,5T (VSG 68.4T) Acoustic/12/4/12/15T (VSG 66.8T) Acoustic	Argon	50	-1	-3	37	43	49	49	53	59
16,8 (VSG 88.2) Acoustic/16/12,8T (VSG 66.2T) Acoustic	Argon	50	-1	-4	37	39	47	51	53	61
12,8 (VSG 66.2) Acoustic/20/8,8T (VSG 44.2T) Acoustic	Argon	51	-2	-7	30	41	48	56	55	62
15,5 (VSG 68.4) Acoustic/15/16,8T (VSG 88.2T) Acoustic	Argon	51	-1	-4	39	40	47	51	55	62
16,8 (VSG 88.2) Acoustic/20/12,8T (VSG 66.2T) Acoustic	Argon	51	-1	-3	41	45	49	49	56	71
15,5 (VSG 68.4) Acoustic/15/4/12/16,8T (VSG 88.2T) Acoustic	Argon	52	-1	-3	41	43	51	53	55	70

Acoustic glazed units Leaflet

Structure and coefficients

of acoustic glazed units, confirmed on the basis of EN 12758 and EN 12354-3

Table acoustic glazed units confirmed on the basis of european norms

Standard acoustic insulation coefficients on the basis of EN 12758 and EN 12354-3	Structure [mm]	Acoustic insulation coefficient at average frequencies [Hz] R [dB]						Acoustic insulation coefficient and adaptive coefficients [dB]
		125	250	500	1k	2k	4k	R_w	C_tr	C
This chart presents standard values of the weighted acoustic insulation coefficient R_w, as well as the coefficient R for different frequencies of sounds tested for the essential structures of double glazed glass units presented in glass trade magazines and technical publications.	Single glass
	3	14	19	25	29	33	25	28	-4	-1
	4	17	20	26	32	33	26	29	-3	-2
	5	19	22	29	33	29	31	30	-2	-1
	6	18	23	30	35	27	32	31	-3	-2
	8	20	24	29	34	29	37	32	-3	-2
	10	23	26	32	31	32	39	33	-3	-2
	12	27	29	31	32	38	47	34	-2	0
	Laminated glass
R_w– weighted acoustic insulation coefficient C_tr – corrective coefficient for sound sources containing a large number of low frequencies, for example urban road traffic C – corrective coefficient for sound sources containing few low frequencies for example high speed road traffic, high speed rail traffic, children playing	6,4 (VSG.33.1)	20	23	29	34	32	38	32	-3	-1
	8,8 (VSG 44.2)	20	25	32	35	34	42	33	-3	-1
	9,5 (VSG 44.4)	24	26	33	33	35	44	34	-3	-1
	Double glazing
	4/(6-16)/4	21	17	25	35	37	31	29	-4	-1
	6/(6-16)/4	21	20	26	38	37	39	32	-4	-2
	6/(6-16)/6	20	18	28	38	34	38	31	-4	-1
	8/(6-16)/6	20	21	33	40	36	48	35	-6	-2
	10/(6-16)/4	24	21	32	37	42	43	35	-5	-2
	10/(6-16)/6	24	24	32	37	37	44	35	-3	-1
	6,4 (VSG 33.1)/(6-16)/6	20	19	30	39	37	46	33	-5	-2
	6,4 (VSG 33.1)/(6-16)/10	24	25	33	39	40	49	37	-5	-1