Houses with "corrugated iron" style cladding

Forums › Home Workshop DIY › Houses with "corrugated iron" style cladding - yay or nay?

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Disrespective

1926 posts

Uber Geek

#1884334 16-Oct-2017 13:22

We often use profiled metal as a cladding option in our office. It's a decent cost savings over the alternatives and depending on the house may add to the character.

All non-structural wall cladding types have to meet the minumum NZBC B2 Durability standards of minimum 15 years (or 50 years if structural or braced). Colorsteel warranty their product for a minimum of 15 years assuming it is maintained (washed and installed correctly) and you'll find that most claddings (including timber weatherboards) will only warranty up to this period of time.

As with anything if it's maintained, and installed suitably, it will long outlast a 15 year durability requirement.

I say 'yay'.

mattwnz

20164 posts

Uber Geek

#1884442 16-Oct-2017 16:15

Disrespective:

We often use profiled metal as a cladding option in our office. It's a decent cost savings over the alternatives and depending on the house may add to the character.

All non-structural wall cladding types have to meet the minumum NZBC B2 Durability standards of minimum 15 years (or 50 years if structural or braced). Colorsteel warranty their product for a minimum of 15 years assuming it is maintained (washed and installed correctly) and you'll find that most claddings (including timber weatherboards) will only warranty up to this period of time.

As with anything if it's maintained, and installed suitably, it will long outlast a 15 year durability requirement.

I say 'yay'.

I always wondered my it was only 15 years for cladding, because you don't expect to have to replace it every 15 years, and it is the main weather proofing layer. I would have though 25 years min would be more appropriate IMHO

MikeAqua

7785 posts

Uber Geek

#1884786 17-Oct-2017 08:51

One thing I am dubious about is installations where the corrugations run horizontally.

The 'round' hay-barn on our farm held beads of condensation in the corrugations.

Mike

Groucho

524 posts

Ultimate Geek

#1884816 17-Oct-2017 09:06

MikeAqua:

One thing I am dubious about is installations where the corrugations run horizontally.

The 'round' hay-barn on our farm held beads of condensation in the corrugations.

Also if it's a darker colour and horizontal it shows up the dirt and dust as it sits on the corrugations.

Disrespective

1926 posts

Uber Geek

#1884920 17-Oct-2017 10:54

MikeAqua:

One thing I am dubious about is installations where the corrugations run horizontally.

The 'round' hay-barn on our farm held beads of condensation in the corrugations.

If installed horizontally you must install it on a drained and ventilated cavity. This combats any condensation. If installed vertically you can get away with no cavity as the corrugations act as ventilated cavities.

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