Acoustic Performance of FireLite

The FireLite range of products provides levels of acoustic attenuation normally expected for glass. For design considerations the following measured values apply:

Rw (C;Ctr) values, dB

Product
FireLite
(5mm)29(0;-1)
FireLite-SL
9mm33-34(0;-2)
11mm & 12mm36(0;-2)
FireLite-SU
15.4mm31(0;-2)
19.4mm34(0;-3)
21.4mm34(0;-1)
23.4mm33(-1;-4)
24mm37(0;-3)
AcoustiLam
11mm35(0;-2)
15mm37(0;-2)

Reference document BMT/MTP/F15334/Rev1, samples tested to BS EN ISO 10140-2:2010. Note: The supporting construction consisted of two wall leaves separated by a 150mm gap containing 100mm fibre insulation. The wall was faced on both sides with 150mm plasterboard on 45mm by 90mm softwood support at 600mm centres. Note: Laboratory tested values can normally be expected to differ from measured values in application, according to the situation.