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Colorsteel Endura roofing manufactured in New Zealand features on Knox Church

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Colorsteel Endura roofing in Ironsand for Knox Church restoration is similar to the original, with a brown tint to complement copper cladding

Colorsteel Endura roofing manufactured in New Zealand features on Knox Church


Durable, long-life and low-maintenance building materials were essential for the Knox Church post-earthquake rebuild in Christchurch. But aesthetics were also a key consideration.

Architect Alun Wilkie of Wilkie + Bruce Architects says Colorsteel® Endura® roofing in the colour Ironsand was chosen for several reasons.

"The original roof was painted black, which was a rather fierce colour that soaked up the heat. Ironsand, being a dark grey, is close to the original but better suited to the conditions. It also has a slight brown tint that complements the copper."

Wilkie says another reason for the choice of Colorsteel was its durability and long warranty.

Colorsteel is manufactured by New Zealand Steel from local iron sand. For this project, it was supplied and installed by Stratco (NZ). The company also supplied matching ridging, valley and bargeboard flashings, and snow protection.


Stratco general manager David Allingham says Stratco recommends Colorsteel because it is made in New Zealand for local conditions.

On the Knox Church project, Stratco worked closely with the site manager, following the architect drawings and specifications to produce an aesthetically pleasing and watertight roofing.

"The installation was challenging, due to the 63° pitch of the roof," he says. "This created a number of unique hazards. We developed a detailed plan and risk assessment using Hi-Abs and scissor lifts to lift the material to a working platform two-and-a-half storeys above the ground. This allowed for a safer installation. At times the weather was also challenging. The team dealt with severe conditions, including snow and torrential rain."

Colorsteel samples and colour charts are available from branches of Stratco (NZ) and Home Ideas Centres in Auckland and Christchurch. Alternatively, phone 0800 100 523 or order online . For Stratco branches,

First published date: 21 April 2015

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