Solar and Low-E

Heat, glare and energy performance are where most commercial window film work starts, and where the marketing numbers are loosest. These articles cover what solar control and Low-E retrofit films change on a building that already exists, and what they cannot change.

Film can reduce solar heat gain, cut glare on west facing glass, and improve comfort near windows. It cannot fix failed insulated glass seals, air leakage around bad frames or a window system at the end of its life. Understanding which problem you actually have is the difference between a retrofit that works and money spent on the wrong layer of the building.

Articles here explain how to read published performance figures and why a percentage means nothing without a named product on a named glass type, how room side Low-E film compares with window replacement on older Chicago commercial stock, what tradeoffs come with each, and which existing glazing will and will not accept film.

Written for building owners, facility and property managers, energy managers and asset managers weighing a retrofit against a capital replacement.