We have been designing and building screen porches for over 20 years in Charlotte, NC. We have found a great retractable window system that prevents the green yellowish dust from pollen getting all over your furniture and flooring. This time of year in Charlotte, the pollen is everywhere and this enclosure system really works. It turns your screen porch into a “convertible” sunroom and back again simply by pulling the windows up and down and the sceen stays in place permanently. I have enlosed some great photos as well as a link to our photo gallery where you can see more!