Glazing & Performance
Focused guides for this part of the commercial project.
Low-E window film as a retrofit concept
Low-emissivity films can alter radiative heat transfer at existing glazing and may be considered where full window replacement is not planned.
Interior vs exterior commercial window film
Some films are designed for room-side installation while others are intended for exterior exposure.
Window film and glass compatibility
Film, glass type, coatings, insulating-glass construction and existing condition should be considered as one system.
Window film on insulated glass units (IGUs)
IGUs combine multiple panes, seals, cavities and sometimes low-E coatings, so film selection requires more information than visible pane size.
Estimating energy savings from window film
Film can change solar heat gain and thermal behavior, but annual savings depend on the whole building.
VLT, solar heat gain and reflectance: reading film data
Commercial film data sheets use several values that describe different optical and thermal effects.