Around my way a 3 storey block of flats was clad in wooden timber slats and within a year it had water stained badly. I have noticed since that around every 3 years they erect scaffold to maintain the cladding. Possibly a low cost option for the builder but not for the flat owners.
I read (can't remember where, but on t'internet, so it must be true), that painted Corten is unable to form the desired surface, so it loses its corrosion resistance. Someone built a load of railway coeches which rotted under the paint.
Its worked fine for more than 50 years now
Google: CoreTen Steel
Another 50 to go!
It's worked fine in _most_ places according to that article...
Andy
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.