Wealthy Roman citizens in the towns lived in a domus. They were single-storey houses which were built around a courtyard known as an atrium. Atriums had rooms opening up off of them and they had no roofs. A rich Roman house had many rooms including kitchen, bath, dining, bedrooms and rooms for slaves. A long covered porch, or verandah, with a low wall and pillars, was built along the front of the house to keep the rooms cool .PoorRomans lived in simple flats. These were called insulae .