Look load bearing to me I would get them checked out,
there is a possible solution at this link:
Roof options: colorbond, terracotta or concrete tiles?
Colorbond is noisier in that you can really hear the rain.....but I don't mind that.
It is less likely to be damaged if you want to fit solar panels at a…
Warranties do vary but this is a link to a typical warranty
http://anewhouse.com.au/2016/10/what-do ... ies-cover/
Retired Water Engineer
Volunteer for Disaster Aid Australia