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Ducting for rangehood

I need supply and installation of 150mm ducting from rangehood to roof, and flashing/waterproofing around pipe through roof. Roof exit is immediately above rangehood so no bending should be required. Prefer rigid or semi-rigid ducting. Roof is corrugated steel, 30 degree slope. I have added photo of rangehood (F&P HC60DCXB3). Fixing screws through tiling are in place, but rangehood can be dismantled - ie, not yet fixed to wall.