Everyone has lawnmowers here.So,the grass isn`t long enough for thatched huts.

And we only use metal roofing for....roofs....on barns.

Just messing with ya maite!
What are common materials there?It seems when a man-made replacement comes out it serves to make the real thing a premium product rather than a cheaper way to build.I believe Australia can be compared pretty well to California for climatic demands on housing.The farther east the more moisture.It`s lush and green in the east,which means nature is constantly trying to reclaim itself...think rot.