The latest forms of advanced window films could be amongst the best means for improving building energy efficiency during retrofits, permitting the ingress of large amounts of visible light while blocking heat.

Low-e window films have the potential to dramatically reduce building energy consumption for a far lower cost compared to other window-related efficiency solutions. The indoor cooling of built environments comprises a significant percentage of their energy needs, especially in Australia where much of the country is beset by torrid weather for large parts of…