We recently purchased a home with an early 1990's solarium that is dark brown and curved. The structure is in great condition, but the windows have got to go. It was possibly built by 4 seasons. It's a nightmare environmentally. Huge water issues with condensation in the winter, and way too hot in the summer. The room is south facing, and we are in Indiana weather. To make matters worse, the only "vent" in the room, is the vent to the home attic area in the soffit, so the hot air goes up to the attic area and down to the crawl space and causes lots of problems. Home values in our area are low, so there would be no return on investment to replace the windows(cost is too high). Has anyone had experience converting the existing structure to a screened porch? Our idea to to screen in the lower, straight glass openings, and then room over the curved areas and add interior wood layers above such as pine. Is this even possible? Specifically, there are two windows that have a curved shape at the top, and I'm not sure we there is a screen we can make or bend to fit that.