This video talks about some basics of Building Materials in ArchiCAD 17, and about converting your ArchiCAD 16 Template to ArchiCAD 17 (in a crude and quick manner).
Before or After watching this video, I highly recommend you read the accompanying blog post. Here's the link: http://www.shoegnome.com/2013/11/12/b...
My hope is that this video (and its sequel) spur a good conversation about Building Materials. If you have any questions, please ask them here or better yet on the blog. I'll do my best to find the answers and share them via comments, more posts, and/or more videos.