Welcome to Workshop. Let me tag @Demo for you so he is sure to be alerted to your question about what to use for your roof.
Have you got a photo of what you've built so far? I'm sure the community would love to see it, and see any other projects you might have worked on. We have clever and creative members sharing amazing projects and helpful advice every day.
Thanks for joining in the discussion, we look forward to seeing more of your posts soon.