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Judges & judging criteria

About the judges

We have carefully chosen a panel of judges that have endless experience in the roofing and construction industry. Our judges will help to recognise and celebrate the outstanding work that’s being done in the industry.

Gretta Stephens Colorsteel® awards judge

Gretta Stephens

CEO of New Zealand Steel

Gretta Stephens leads the mining, manufacturing and downstream BlueScope businesses in New Zealand (including Pacific Steel) and the Lysaght manufacturing and distribution business in the Pacific Islands. With over 27 years' experience in the mining and metals industry here and in Australia, Gretta has held executive roles at Rio Tinto, Alcoa and Pacific Aluminium.

Graham Moor Colorsteel® awards judge

Graham Moor

CEO of Roofing Association of NZ (RANZ)

Graham has over 37 years' experience in the roofing industry, including running his own roofing company for over 21 years. He has also worked for leading roofing manufacturers. Graham is a plumber by trade and has achieved National Certificates in Metal Roofing and Wall Cladding, Metal Tile and Membrane Roofing. He is an industry assessor for National Certificate trainees.

Rod Newbold Colorsteel® awards judge

Rod Newbold

Product Launch Manager, New Zealand Steel

Rod has 45 years' experience in the New Zealand steel roofing industry. As a life member of the New Zealand Metal Roofing Manufacturers Association, Rod is consistently informed on the latest regulations and practices. On top of his role at New Zealand Steel, he is also the Executive Editor of Version 3 of the NZ Metal Roof and Wall Cladding Code of Practice.

Peter Wolfkamp Colorsteel® awards judge

Peter Wolfkamp

Site Foreman for The Block NZ

For over 30 years, Peter has established a career combining extensive experience in the building sector with a proven track record in broadcasting. He hosts Sunday Mornings with The Resident Builder on Newstalk ZB, discussing all things building and renovating. In 2012, he was Site Foreman for the popular television building reality series, The Block NZ. Peter is a Licensed Building Practitioner.

Ken Crosson Colorsteel® awards judge

Ken Crosson

Director of Crosson Architects

Ken has developed an exceptional portfolio with awards including NZ Home magazine Home of the Year 2003 and Home of the Decade 2006. In 2012, he was a finalist in the World Architecture Awards for the project 'Hut on Sleds'. His designs have twice been listed by World Architecture News among the 'Six Best Houses' in the World'. Ken is a Fellow of the New Zealand Institute of Architects.

What is the judging criteria?

The judging criteria will vary from category to category. Overall, the judges will be looking for:

  • Creative design and innovative use of COLORSTEEL® products
  • Complexity of project(s)
  • Environmental considerations
  • Excellent workmanship
  • Outstanding health and safety practices
  • Remarkable leadership.

Judging criteria for each category:

COLORSTEEL® Building of the Year

In this category, the judges will be looking for creative design and innovative use of COLORSTEEL® products. They will be considering the function and form of the building design, as well as the impact the building has on the surrounding environment.

COLORSTEEL® Roofer of the Year

In this category, the judges will be looking at the roofer’s workmanship, health & safety practices, customer service and communication, ability to solve problems, and leadership skills. As well as the complexity of the roofers past projects and how the individual has impacted on the industry.

COLORSTEEL® Young Roofer of the Year

Similarly, to the ‘COLORSTEEL® Roofer of the Year’ award, judges will be looking for excellent workmanship, tenacious problem solving, the willingness to go the extra mile, great customer communication, leadership and an impeccable safety record.


Entries close in 5w : 6d : 15h



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