Our clients imagined a space where they could enjoy the outdoors without bugs/weather conditions. The SunSpace window system are vinyl windows that fold down and collapse on themselves to create a screened in porch. We installed screen material under the low maintenance, composite Trex deck to keep bugs out. They wanted a space that felt like an extension of their home. This is a true friendship porch where everyone is welcome including their kitty cats. https://sunspacesunrooms.com/weathermaster-vertical-four-track-windows