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Article from issue 7+8/2002 »Roof Construction«

House in Hadano

documentation p. 919 - 921
Architect Tezuka Architects | Specialist Planner Kakudate, Masahide | Structural Engineer Ikeda, Masahiro |

Drafts
Cross-section 1:400
Ground floor plan 1:400
Plan of roof 1:400
Sectional detail 1:10
Vertical section 1:20

Resembling the deck of a ship, the sloping roof over this house near Tokyo accommodates various functions – sitting, cooking, dining, showering and sunbathing. The single-storey building has a strict layout with rooms divided from the living area by sliding partitions. A skylight in every room allows ladder access to the roof deck. The south face of the house is fully glazed, affording a view to a small garden, whereas the street front is virtually closed. The roof structure consists of a grid of 105/105 mm timber beams. With a double layer of plywood on both faces, it acts as a rigid diaphragm, which allowed the depth to be kept to a minimum and ensured an elegant appearance – without balustrades.