As I have said I have never seen that being used in Oz, and I wonder what the life of it is?
My brick house is around 30 years old and quite sound, but the kitchen cupboards need replacing as they are made of chipboard and it is starting to disintegrate.
They tell me that the new chipboard is OK as it has a newer glue, but I will have to give it quite a bit of thought when I get it replaced if I should use solid timber. Mind you if the new chipboard last in excess of 30 years it would outlive me I guess.
Although the wiring was quite OK I have replaced it as I wanted 3 phase power on and quite a few upgrades in the house, wiring wise.
Being brick veneer home (Brick outside with timber frame walls clad in plaster board) it is fairly easy to run the wiring down from the ceiling in the gap between the brick and plaster board.
The water pipes outside the house were plastic and so I have replaced them with copper. The pipes inside were already copper. In newer houses it seems the both the hot and cold water pipes inside the homes are sometimes install in plastic pipe. Maybe I am old fashioned but I prefer copper.The idea of a plastic pipe bursting in the middle of the night does not make me happy.
In Sydney they replaced all the underground gas pipes with plastic. Quite a big job as the population is around 4.5 million and it is quite a spread out city.
It seems to work OK as far as I know, they did the job around 15 years ago. It seems they just poked the smaller plastic gas pipes through the old metal ones and run them at higher pressure, so they did not have to dig up half the streets.