We installed the beautiful hybrid windows (aluminium on the outside and pvc inside). The darker color aluminium frame contrasts nicely with the light color stucco. The new bay, bow, casement windows as well as the sliding patio doors are triple pane with low E and neat glass. The low E option prevents heat loss and increases your comfort and energy efficiency. With the “neat glass” outside coating, you won’t need to worry about cleaning your windows so often.