Self-built settlements on the roofs of high-rise buildings have been an integral part of Hong Kong's history for over half a century. Rufina Wu and Stefan Canham utilize the tools of an architect and the tools of a photographer to document rooftop communities on five buildings. Text records of the resident's stories, measured drawings of each district rooftop structure, and high-resolution images of the domestic interiors of more than twenty households offer an unprecedented insight into the everyday life on Hong Kong's rooftops.