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Recognising that building designers, engineers and other industry professionals maintain extremely busy schedules,  Roofing Industries welcomes the opportunity to provide this informative and user-friendly section of our website where we seek to provide technical support. We are confident that www.roof.co.nz will be welcomed by design professionals as the “one-stop” roofing and cladding reference tool, updated to meet the requirements of the Building Code on a regular basis.

Note: The following statement only applies to Eurostyle, Multideck andTrapezoidal profiles. Oil canning is defined as a perceived waviness across the flat area of ( in particular, but not limited to) wider metal panels. It is a naturally-occurring phenomenon and can be more discernible under shallow cross lighting, variation in light source, temperature and thermal changes. Oil canning is an aesthetic issue and not a structural problem or defect. The property owner, builder, specifier should be aware that these undulations do not affect performance. Inclusion of swaging systems may also assist in reducing surface waviness.

Along with the extensive amount of information available through this site, our staff are ready and willing to assist with any clarification, and further technical support

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    • Colorsteel - 6 Good Reasons to trust Zincalume steel

      The substrate for COLORSTEEL® prepainted steel, New Zealand’s preferred roofing material

      • Architecural Resources
      • Appropriate Material Selection
      • Colorsteel
      • Consent Assistance Pack
      Last Updated: 7 Oct, 2015 - 4:45pm
    • Colorsteel - Beware of imitations

      When it comes to colour performance, laboratory testing has shown that New Zealand made painted steel achieved the best results, with imported product being the least durable.

      • Architecural Resources
      • Appropriate Material Selection
      • Colorsteel
      • Consent Assistance Pack
      Last Updated: 7 Oct, 2015 - 4:45pm
    • Colorcote Atmospheric Guide

      Colorcote Atmospheric Guide

      • Architecural Resources
      • Appropriate Material Selection
      • Colorcote
      • Consent Assistance Pack
      Last Updated: 21 Oct, 2015 - 11:15am
    • Colorsteel Atmospheric Guide

      Colorsteel Atmospheric Guide

      • Architecural Resources
      • Appropriate Material Selection
      • Colorsteel
      • Consent Assistance Pack
      Last Updated: 7 Oct, 2015 - 4:45pm
    • Colorcote ZinaCore Technical Literature

      Colorcote ZinaCore Technical Literature

      • Architecural Resources
      • Appropriate Material Selection
      • Colorcote
      • Consent Assistance Pack
      Last Updated: 7 Oct, 2015 - 4:46pm
    • Colorcote MagnaFlow Literature

      Colorcote MagnaFlow Literature

      • Architecural Resources
      • Appropriate Material Selection
      • Colorcote
      • Consent Assistance Pack
      Last Updated: 7 Oct, 2015 - 4:46pm
    • Colorcote AlumiGard Literature

      Colorcote AlumiGard Literature

      • Architecural Resources
      • Appropriate Material Selection
      • Colorcote
      • Consent Assistance Pack
      Last Updated: 7 Oct, 2015 - 4:46pm
    • ZAM literature

      ZAM Literature

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      Last Updated: 30 Nov, 1999 - 1:00pm
    • potable water collection roofing

      Potable Water Collection from Roofing

      • Consent Assistance Pack
      Last Updated: 30 Nov, 1999 - 1:00pm
    • fire ratings colorcote materials

      Fire Ratings Colorcote Materials

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      Last Updated: 30 Nov, 1999 - 1:00pm
    • Colorcote Reflectivity values

      Colorcote Reflectivity Values

      • Architecural Resources
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      • Latest Technical Bulletins
      Last Updated: 15 Apr, 2015 - 4:37pm
    • Zincalume Brochure

      Zincalume Literature

      • Architecural Resources
      • Appropriate Material Selection
      • Colorsteel
      • Consent Assistance Pack
      Last Updated: 7 Oct, 2015 - 11:38am
    • Aluminium coil data sheet

      Aluminium Coil Data Sheet

      • Architecural Resources
      • Consent Assistance Pack
      Last Updated: 6 Oct, 2015 - 10:30am
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