Casement Windows - Aluminium Casement Windows Trend Windows & Doors Frame type Timber Glazing Single, Double Min. length 610 Max. length 2650 Min. height 940 Max. height 2035 Uw (Whole window U Value) 5.9 SHGC (Solar Heat Gain Coefficient) 0.25 Opening Bifold, Tilt open Striking Aluminium Casement Windows from Trend Windows & Doors Trend Windows & Doors