Our industry sits on the cusp of change; new technologies break onto the scene, while other changes are anticipated years in advance. Triple glazed windows fall into this second category. Recently, the great debate about double or triple glazed windows has been top of mind for owners, property managers, engineers, and architects. This presentation will include case studies from low-rise and high-rise residential and commercial buildings. The speaker will use practical real-life examples and thermal modelling to reveal the thought process when considering various management strategies and replacement options.