Solar screens reduce glare and block UV rays, which may slightly dim natural light and alter the view from inside. However, most homeowners find the trade-off worthwhile for improved comfort and energy savings. The impact depends on the screen’s color and density, with darker screens blocking more light but providing enhanced glare reduction and privacy.

A lace curtain may block some of the biggest insects from entering while still allowing a breeze to get through. If your concern is privacy, then curtains and blinds will provide better privacy than window screens; for UV protection, you can choose specialty windows or UV-blocking film. And if you just want an inexpensive, temporary solution, there are adhesive or magnetic screen panels you can install for an hour, a day, or a season.

Some frosted glass sprays can handle the outdoors, but most of them aren't built for it. Sprays made for exterior use will say so clearly on the label. Anything marked “interior use only” can't hold up against rain, UV exposure, or changing temperatures without peeling, fading, or yellowing. Outdoor-rated sprays are typically more durable, but even then, proper prep and application matter. Before spraying anything outside, double-check the product instructions. If it doesn’t specifically mention exterior use, skip it. 

Costs depend on window size, film quality, UV protection level, and installation complexity.