Trend ThermAL® Energy Efficient Fixed Lite Windows - Trend ThermAL® Trend Windows & Doors Frame type Aluminium Glazing Double Min. length 610 Max. length 2710 Min. height 600 Max. height 2100 Uw (Whole window U Value) 2.1 SHGC (Solar Heat Gain Coefficient) 0.29 Opening Horizontal sliding, Vertical sliding, Bifold, Fixed, Tilt open Trend ThermAL® Hybrid Windows for Maximum Energy Efficiency from Trend Windows & Doors Trend Windows & Doors