Have seen this flashing , but don't know name or needed size, so it's kind of hard to buy or research on the net . Where used: 1 story gable end of roof connects to 2 story wall. (head wall?) IIRC, the flashing sort of looks like a upper case L, including the little turn-up lip at the bottom. I think it's some kind of pan flashing, but there's a specific name for this critter. I know one usually uses counterflashing with it. Wall will be rock veneer; roof will be concrete tile. I believe it's put on before the rock is laid and the counter flashing is inserted later in the mortar between courses or a cut line in the stone.
I'm assuming I need to flash these too, but don't know what's needed: (1) joists coming out of rock wall 16" o.c. Looks like an arbor now, but eventually plan to floor it for a deck. (2) existing covered (that is, roofed) floored deck where there's space for the rock veneer between the wall sheathing & the inside deck flooring plank. Flooring is not solid - has gaps between planks.
Thanks, Diane