All about glass > Acoustic insulation index : R

Europe's most precise sound reduction index for glass is Ratr ( Ratr= Rw+Ctr) often called R and expressed in decibels (dB). We will use this index to state glass acoustic performance. For further information, please contact us.
Some single glazings acoustic values :
                                         
  4 mm  6 mm  8 mm ou
Plastofloat 68
(33/2)
10 mm 12 mm ou
Plastofloat 128
(66/2)
Plastofloat
acoustique
88 (44/2)
19 mm Plastofloat
acoustique
128 (66/2)
R 26* 28* 29* 30* 32* 33,9** 34*** 37**


*according to EN 12 758
**Test results, experimental values obtained by our samples, measured according to NF EN ISO 140 specifications
*** calculated values, values calculated simulating the NF EN 140 conditions