WINDOWS pane Window pane divider (also called a muntin bar or grille) frame sash sill Hinged Windows (Casements) Casement Unit French Casement Awning Hinged Windows (Casements) Characteristics • open 100% for maximum ventilation and, depending on size, unlimited emergency exit • hinged to the frame, casements open out like a door or up like an awning • provide unobstructed view • availble with screens on the inside Awning Hinged Windows (Casements) Characteristics • easy to clean Casement Unit •casements seal tight against weatherstripping •they are generally draft-free, energy-efficient units • operating hardware on casement windows can increase overall cost Fixed Windows Curved Bay Window Fixed Windows Characteristics • designed as a single piece of glass in a frame •least expensive because the do not have operating hardware or hinges • known as picture windows in larger sizes • double-hung and casement windows, can also be manufactured as fixed units • do not open; no ventilation or emergency exit Fixed Windows Characteristics • no leakage or drafts • work well in combination with operable windows in the same or different styles as “multiple assembly” • available in large and small sizes and custom or speciality shapes; high decorative potential Round and Geometric windows Sliding Windows Characteristics • slide open vertically or horizontally • open only 50%; depending on size, ventilation and emergency exit can be limited • new models that tilt out and turn enable easy cleaning Double-Hung • because of the sliding motion, good weatherstripping maintenance is required to ensure minimal air leakage Slider/Glider