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4 posts

Wannabe Geek

# 255760 27-Aug-2019 22:52
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I'm about to build a large shed, and have the choice of 2 brands of Roofing and Cladding. Colorsteel Endura, made by NZ steel or ModnColour, made in Korea.




It's difficult to find any independent information on ModnColour other than the Donovan group who owns it, but "apparently" the PPG paint system is superior to the Colorsteel paint system.


Are there any experts out there on these 2 choices? Thanks.

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250 posts

Master Geek

  # 2307088 27-Aug-2019 23:02
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I run a roofing company. Although the price of colour steel is a little more it’s well and truly worth it in terms of longevity/quality in my opinion.

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Uber Geek

  # 2307097 28-Aug-2019 00:15
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This is a comment by a roofer on another forum
"Colorsteel is only made in NZ. It’s a trademark.
The foreign stuff that we get here is generally from Union steel in South Korea which is high quality steel coated poorly"


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Uber Geek

  # 2307098 28-Aug-2019 00:25
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Personally I have never had a problem with colorsteel. Although always wondered why they spell colour, as color in their brandname.

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Wannabe Geek

  # 2307316 28-Aug-2019 14:22
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Thanks for the replies, this confirms my thoughts. Although MODNColour may well have a superior paint system, it's too early to see any problems vs years and years of Colorsteel in NZ.

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  # 2307318 28-Aug-2019 14:28
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RickW: I run a roofing company. Although the price of colour steel is a little more it’s well and truly worth it in terms of longevity/quality in my opinion.


We used ColourSteel when we built our house.  At the time the roofer who installed it said in his opinion a better option is buying the unpainted stuff and getting it painted after installation.  Something about it being thicker or something?


What's your view @RickW?



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Uber Geek


  # 2307331 28-Aug-2019 14:40
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We used color steel. It's proven in NZ.


The roofing guys we used scratched the metal so badly I made them replace some of the sheets before I paid them, and they still needed to do touch up painting in places. Tell them in advance you will ask them to replace any scratched sheets, might make them more careful.

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Master Geek

  # 2307336 28-Aug-2019 14:49
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That’s 100% false. The bmt or bare metal thickness is the same. Zinc is just unpainted colour steel. A paint coating put on zinc will never last as long as the factory paint finish and should be more expensive due to the extra labor in prepping and painting the roof. With expansion and contraction as the roof heats up and cools down, its common for the paint to crack around the screws in a painted roof which holds water under the cracked paint on the roof and causes rust.



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Uber Geek

Lifetime subscriber

  # 2307384 28-Aug-2019 15:55
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Just as a data point, the Casa de Cowboy has a forty-year-old corrugated iron roof that was probably last painted twenty years ago (I've deferred painting due to getting it replaced,and in particular if it were to rust out somewhere that'd hurry up the replacement process :-), and it's still doing OK.. It's surprising how long even a pretty rubbishy roof lasts. Having said that, the replacement will definitely be ColourSteel.

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