Sunscreens are basically a retractable vertical shade , instead of moving laterally in and out, these units simply move up and down. Like the retractables, they can be operated manually or motorized with a remote control.
90% shade screens in a multitude of colors are available and allow the user the luxury (and privacy) of seeing outside while significantly cutting the heat and glare of sunlight. Drop-rolls are a heavier duty version of a sunscreen and are employed to block wind or enclose a patio thus providing warmth during cooler months. Clear vinyl inserts are available to increase visibility.
Both sunscreens and drop-rolls come with five year warranties. They also have the added value of the " now you see it, now you don't "application like the retractable awnings.