'what is the new roof made of?!'
http://www.finance.gov.au/property/property/the-lodge-refurbishment-works.html
the new roof is also slate!
very expensive!
to renovate a historic building can cost 5 or even 10 times the cost of building a new one,
with the same floor area,
especially if it is stone, very old or built with obsolete materials!
government buildings in canberra are extremely expensive!!
