A retractable sun room is a glass and screen outdoor living room installed on the concrete foundation which could be opened and closed by manual operation or remote. It is also referred to as a patio room, solarium, pool dome, patio enclosure or commercial tea house etc. Walls of glass bring in sunlight and protect you from wind, bugs, rain, and chill. Composed primarily of single polycarbonate panel or double pane glass, sunrooms should be designed to fit the look and feel of your home and shopping center. Sunroom additions are a popular means of home improvement. They are an affordable way of adding leisure living space without the hassle and cost of conventional construction.