Acoustic insulation glass for higher performance
Noise surrounds us in a number of forms. With increasing city densities, the effects of noise become greater and cause stress, tiredness or even a loss of hearing ability. In most cases we are unable to reduce the noise at source, so we must take effective measures against it. In order to fight noise, we must understand its nature, we must know how to measure noise and how glass can be used as an effective measure against noise. An introduction to the theme is shown in the technical introduction – noise and how it is measured.
Quite often, acoustic glazing has additional safety requirements. These requirements can be fulfilled using STADIP SILENCE laminated safety glass. In addition to this, it is also possible to use this glass in areas where falling is possible such as guardrails and skylights. Such applications require a minimum interlayer thickness of 0,76 mm. CLIMAPLUS SILENCE can fulfill all requirements of the technical guidelines such as TRAV*, TRLV**, Building Regulations, LBO*** and specifications of insurance underwriters.
* Technical guidelines for fall-guarding glazing applications of the DIBt (01/03)
** Technical guidelines for linear supported glazing applications of the DIBt (09/98)
*** Provincial construction directives of individual provinces
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1. Technical Data
Dimension max. 3210 x 6000 mm
CLIMAPLUS SILENCE
| Glass type |
Rw in dB |
C, Ctr |
Light transmission
τv to DIN EN 410
in % |
Total energy transmission
(g-Value) to DIN EN 410 |
Ug- Value to DIN EN 673 in W/m².K* |
CLIMAPLUS SILENCE 26/37
cavity 16 mm (A) |
37 |
-1, -4 |
79 |
58 |
1,1 |
CLIMAPLUS SILENCE 28/39
cavity 16 mm (A) |
39 |
-2, -5 |
78 |
56 |
1,1 |
CLIMAPLUS SILENCE 28/40
cavity 16 mm (A) |
40 |
-2, -6 |
78 |
58 |
1,1 |
CLIMAPLUS SILENCE 24/41
cavity 12 mm (K) |
41 |
-2, -7 |
78 |
58 |
1,0 |
CLIMAPLUS SILENCE 30/42
cavity 16 mm (A) |
42 |
-2, -6 |
77 |
56 |
1,1 |
CLIMAPLUS SILENCE 34/42
cavity 20 mm (A) |
42 |
-2, -7 |
77 |
58 |
1,1 |
CLIMAPLUS SILENCE 26/43
cavity 12 mm (K) |
43 |
-3, -7 |
77 |
56 |
1,0 |
CLIMAPLUS SILENCE 34/43
cavity 20 mm (A) |
43 |
-2, -7 |
77 |
56 |
1,1 |
CLIMAPLUS SILENCE 32/44
cavity 16 mm (A) |
44 |
-2, -7 |
77 |
58 |
1,1 |
CLIMAPLUS SILENCE 36/44
cavity 20 mm (A) |
44 |
-2, -7 |
76 |
56 |
1,1 |
CLIMAPLUS SILENCE 34/45
cavity 16 mm (A) |
45 |
2, -6 |
76 |
56 |
1,1 |
CLIMAPLUS SILENCE 40/45
cavity 24 mm (A) |
45 |
-2, -7 |
76 |
56 |
1,2 |
CLIMAPLUS SILENCE 34/46
cavity 16 mm (A) |
46 |
-2, -6 |
75 |
53 |
1,1 |
CLIMAPLUS SILENCE 42/46
cavity 24 mm (A) |
46 |
-2, -7 |
76 |
53 |
1,2 |
CLIMAPLUS SILENCE 37/47
cavity 16 mm (A) |
47 |
-3, -8 |
74 |
52 |
1,1 |
CLIMAPLUS SILENCE 42/47
cavity 24 mm (A) |
47 |
-2, -6 |
76 |
56 |
1,2 |
CLIMAPLUS SILENCE 41/48
cavity 20 mm (A) |
48 |
-2, -8 |
74 |
52 |
1,1 |
CLIMAPLUS SILENCE 45/50
cavity 24 mm (A) |
50 |
-2, -8 |
74 |
52 |
1,2 |
CLIMAPLUS SILENCE 46/51
cavity 24 mm (A) |
51 |
-1, -6 |
74 |
51 |
1,2 |
CLIMAPLUS SILENCE 49/52
cavity 24 mm (A) |
52 |
-2, -6 |
73 |
50 |
1,2 |
* Ug-Values for vertical glazing
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2. Application notes
2.1 Definition and explanation of „Spectrum-weighting values“ C and Ctr
The „Spectrum-weighting values“ C and Ctr correct the values of noise reduction RW: For noise sources with typically high frequencies, the value C must be added. For other noise sources, particularly those with lower frequencies, Ctr must be added RW .
Both correcting values are always negative or equal to zero, i.e. they correct the noise reduction value downwards.
The acoustic behaviour of a building component is therefore given in the form RW (C,Ctr). That means that a building component with the values RW (C, Ctr) = 40 (-2, -8) indicates a „middle“ insulation value of 40 dB. Particularly for noise sources with high tones the noise insulation is 2 dB lower, and for deep frequency noise sources the even up to 8 dB.
2.2 Requirements of acoustic insulation
Normally, requirements are made of the building component of the window and not the glazing alone.
Typically the required acoustic performance of the glazing is always higher than the value desired for the installed window. It is the job of the architect or acoustic consultant to determine the design noise level and the performance requirements of acoustic insulation.
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