Flashing corrugated roof to corrugated wall

[Monkeytennis]

I'm putting a corrugated steel roof on a lean to against an existing shed that has a corrugated steel wall.

Is there any easy way to flash between the two? I'm not sure if flashband would be flexible enough, particularly if the peaks and troughs don't exactly line up.

Anyone got any ideas about how to go about this?

 

[catlad]

You can buy the profiles for that specific purpose, but if you want to diy it then you
could cut the vertical sheets were your new roof will but against the old and then
with a bit of panel bashing flatten the end of the new sheet to create an upstand
and then feed it under you original building wall.