Asymmetric Roof Overhang

[Sargasso]

Many thanks guys, I've tried both methods and that suggested by calsmom, creating additional external walls the size of the overhang, then making them invisible, works great. Mainly because the fascia and the eaves are then a consistent thickness and colour with the rest of the roof edge, whereas if you use a soffit, unless you duplicate it, one immediately on top of the other, the underside is the same colour as the roofing material itself, resulting in a mismatch with the rest of the overhang.