Maximum overall height: 2,980 mm Unlimited length Maximum glazing dimensions (W x H): 1,110 x 2,890 mm Minimum glazing dimensions (W x H): 550 x “0” mm Maximum clear glazing height: 2,854 mm Maximum height of glazed partition and full transom: 4,000 mm Maximum height with corner posts or facets: 3,000 mm 90° corner posts or 130° to 180° facets Acoustic attenuation (type 1) : Rw (C; Ctrl): 38 (0; -2) dB Impact resistance (NF 08-302, 900 joules): type 2 glazing