The roof

I don't have any really good photos, but I briefly want to mention that the roof went on!  Due to the low slope (1.5/12) we were limited in our options, but we did eventually find a local company who bends these snap lock panels on site.

sorry - not the greatest picture

We used Laing Roofing , and got the Cascadia Metals smp pre-painted steel in Charcoal.  The steel should last for 30+ years, and you can't get any more fire resistant.  The steel contains a minimum of 30% recycled content.