3m Front chord as Mullion Glass Transom Back chord • 8mm Tinted Tempered Glass • 1.52mm PVB Interlayer • Low-E and Reflective coating EXTERNAL GLASS WALL • Glass modules : 3m x 2m • Mullion : 120mmx80mm Steel R.H.S. • Transom : 120mmx80mm Steel R.H.S. • Back chord : 114mm Steel C.H.S.