Acoustic Performance Overview

The Granada Secondary Glazing System delivers exceptional noise reduction, achieving sound insulation ratings up to Rw 54 dB when tested at Element High Wycombe. Using air gaps up to 200 mm and glass options from 4 mm to 10.8 mm laminated or double-glazed, it provides significant acoustic improvement across timber, uPVC, and steel windows. Ideal for heritage, residential, and commercial applications, the system combines high performance, discreet design, and proven laboratory-tested results for superior comfort and noise control.