What Is the Main Difference Between Exterior Solar Screens and Interior Solar Shades?
The main difference is where the solar-control material sits relative to the window glass.
An exterior solar screen is positioned on the outside of the window. Depending on the system, it may be installed in a screen frame or another exterior configuration. The screen material intercepts part of the sun before that solar energy reaches the glazing.
An interior solar shade is mounted inside the room. Sunlight first reaches and passes through the window glass, then meets the woven solar fabric. The shade reduces glare and visible brightness while allowing varying amounts of view-through according to fabric openness and color.
Outside-the-Glass Solar Control
Best compared when reducing direct solar exposure at the window is the leading objective and an exterior-mounted treatment is acceptable.
Inside-the-Room Glare Control
Best compared when easy operation, interior appearance, adjustable glare control and maintaining an outdoor view are leading priorities.