Living Room, Gas Burning Fireplace, Ribbon Fireplace, and Concrete Floor A 13-foot-wide sliding door by Portes Unis St-Michel opens the rear exterior onto a terrace, where the owners spend much of their time. The Series Skyline fireplace by Marquis and movable furniture make the garden an extension of the living space in all seasons.  Photo 2 of 7 in A Monochromatic Renovation for a 19th-Century Montreal Home