Completed in 2008, the 4,414m² Contour Roofing factory provides production office and showroom facilities for the Nelson-based roofing, light steelwork and window manufacturing company.

An asymmetric monopitch roof allows sun and ventilation to penetrate the interior and provides a large overhang for door openings on the north elevation. The south elevation, facing the motorway, is a steeper pitch and contains storage facilities which buffer the building from road noise and winds.

The ridgeline to the building is curved to echo the rolling hills that form a backdrop to the buildings and to avoid the usual ridge flashing that characterises industrial sheds. The roof to the south is extended lower to the ground, to reduce the scale of the wall facing the motorway, and to reduce the prominence of the eaves gutter.