Pitched roofs are preferable for snowy areas to prevent collapsing but flat roofs are great for rooftop gardens. Though I voted neither it really should be either or both because so much depends on the area and the need.

Hi Rita..... A true flyover stays separate from the main roof......the rain can either free fall from the lowest point of the flyover on to the existing roof below and collect with the water from the main roof and down the drain pipes, or it can have it's own guttering and down pipes (how to make that aesthetically appealing depends on shape of your roof/house and height of the flyover). Hubby is a builder and HATES box gutters, but a properly done flyover is no issue at all. Good luck :)

Thanks for your thoughts, they have helped us with our decision. We're now planning on using the barramundi roof tile (it's a grey, a bit softer than the soho nights black. And not so shiny) with matching gutter and fascia. And the cladding in paperbark. I was thinking cream windows instead of the timber, so there's some lighter colours on the brick downstairs to tie it to the top. We can't match it exactly to the paperbark cladding because we aren't using aluminium windows, but I'm hoping the cream (which is supposed to be more of an off-white with this manufacturer) will look okay in the clad dormers upstairs. Fingers crossed!

Personally I'd use Manor Red. Probably won't see a lot of it anyway so if theres a discrepancy between Colorbond and tile it won't be as obvious. I'd also guess that the Manor Red would be a darker red than the terracotta tile? Could use Basalt for gutters and facias if you want a bit of grey perhaps?