I see that the 2018 Architect Expo starts tomorrow 1 May..... I am assuming that public is allowed, it's not a trade only show ? Has anybody been out to previous years shows ? Worth the trip out there ? Before the GF and I settle on the final details of our design I want to show her some stuff she is not familiar with, such as Colourbond roofing and AAC blocks. She is only familiar with tiles and cheap tin roofing, hopefully the Bluescope rep will be able to explain that Colourbond is not just a "tin roof".