"Z" metal is one way,
They will have it made up in for either 1/2 " or 5/8" depending on your T1-11 thickness.
Personally I like to apply strips of scrap T1-11 to the studs above the lower sheets to "Fir out " then apply the upper sheets with a 2" or so over lap , it creates a reveal / shadow line and it's just more weather proof.
So you skin out the remaining studs and over lay the upper sheets , no metal , no leaks!
The picture won't post,
I'm sick of trying it ten ways
, so just ask for Z metal , they should have it, it the Borg.