The Tele-Station3 Elite Series Roll Off Roof Observatory is designed to be attached to a sub building. It has a curved roof sub frame and a transparent Polycarbonate roof sheet. The transparent roof sheets allow light to infiltrate the observatory during the day. The roof slides onto a supporting frame that can either be open below it or covered with the same roof sheeting alllowing an area in the observatory to be a warm room or an office area of the observatory that is not open to the sky when the roof is open. The picture below shows an example of the new Tele-Station3 Elite series.