In the pipeline - DIY Plumbing Tip #20 - Roof Restoration Melbourne - Correct roof metal choice

December 05 2014

The types of metal​ to use when carrying out roof works will greatly influence the life expectancy of the roof. Mixing incompatible metals such as zincalume  and galvanised roofing will lead to rapid corrosion and your roof needing to be replaced again.

Commonly Used Metal Types:

- Zincalume, Galvanised Iron, Colour Bond, Lead, Lead Substitute

-Most new roof restoration works utilise zincalume roofing and flashings. Colour bond is also used extensively and galvanised iron tends to only be used on heritage buildings or due to architectural design.

-Zincalume roofing should not be used or mixed with galvanised iron, lead or copper roofing products. The result of mixing these incompatible metals is rapid corrosion and ultimately having to carry out the roof restoration works again.

-Colorbond roofing is compatible with galvanised and zincalume roofing and is a first choice product. Colour bond metals manufactured by Blue Scope Industries are of excellent quality. See

-Galvanised roofing is generally only used where heritage overlay supply or is specified in architectural drawings. The quality of galvanised metal roofing products Is generally poor and is currently a third choice metal roofing products.

What to Look for in a Roof

Factors to consider when selecting a roof including:

  • How long will it last?
  • Will it hold up during natural disasters such as bush fires, cyclones and storms?
  • Is it too heavy for the existing roof framing?
  • Does the roof have enough pitch?
  • Will the look complement the style of the house?
  • Are the materials eco-friendly and recyclable?
  • Is the type of roofing allowed by local building codes?
  • And finally, how much does it cost?

Please contact webbplumbing services on 1300 238 993 for any further roof restoration or roof repair information or queries.

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