Hello - I’ll try to do my best to describe our situation and look forward to hearing other people’s experience or ideas.
We have a flat pergola outside a patio sliding door. The roof above is clay tile. We would like to cover the pergola with ondura sheets and put them at an appropriate pitch. The size is about 10x12 feet.
Does it make more sense to extend from the roof aka put a right triangle above the flat pergola for the roof?
Or should it be a double pitched roof with the short side emptying into the existing gutter on the house?
If the latter - any tips, books, videos, etc to design it?