The maintenance is minimal. Because the screens are retracted when not in use, they stay in their housings during wet and cold weather.
We recommend cleaning the screens once or twice a season to eliminate any small dust particles in the mesh: upon first use after winter is over, and at the end of the busy summer season. Use mild detergent and water to wipe them down gently.
Finally, regularly lubricating the tracks with Phantom’s greaseless silicone spray will ensure that the screen operates smoothly. (Note that this is a special type of dry silicone specifically intended for the screen, and using any other type of lubricant (e.g. WD40) could damage your screen.)