pitch transition flashing

Hi folks, I'm hoping someone can give me advice on my metal roof that seems to be leaking around a pitch transition. One picture shows a view from above the pitch transition; the other shows a view underneath the pitch transition strip/flashing taken from the lower, flatter pitch of roof.

Question 1: I'm wondering if this transition flashing was installed correctly because it sits high above the ribs on the lower panels - I was thinking it should more or less sit almost on top of the ribs. Because of the height, the lower side of the transition flashing is close to horizontal, rather than being angled down like it should be to direct runoff to the lower panels. Do I need to somehow fix this?

Question 2: If it is acceptable to have this flashing installed in this way, then is the fact that there is a very large opening above each rib a problem? I'm wondering if rain/runoff could be blown in these openings, and if that might be a source of water leakage. Should I seal up these openings above each rib?

thanks much for your input.

John

thanks for your response. There is one place where it is obvious that water could get in - it is where side-by-side pitch transition flashings overlap - see additional picture. This area has not been kept caulked properly, and I plan to remedy this asap. (You can see some other prior spray & pray attempts at caulking there!) I don't think I have leaks above the transition flashing, but of course it is impossible to know for sure.

What I don't know is:
1) could rain or runoff be blown up into those large openings under the flashing? I'm guessing it must be possible, otherwise why would the normal practice be to seal those openings? (This lower section of the roof is I think a 3/12 pitch). I just need to decide whether to go on and seal those openings or not, and if so, how.

2) is there some way to put a horizontal crease in the middle of the z-channel flashings to allow the horizontal part of the above attached flashing to be lowered, giving it more of a down slope? I'm thinking the z-channels are going to be too rigid to do that. Can't think of another way to reduce the height of these z-channels without disassembling the roof.

Any advice on how to properly repair the side by side transition flashing overlaps would also be appreciated.

thanks!

you could do that with a 2x4, but that would probably still leave a bit of a trough at the corner of the pitch change on the flashing. You can see where water has remained in that corner, leaving some amount of debris and discoloration of the metal.

Ok - I think I'll get some strips of galvanized metal and fabricate some plates with a v-shaped cutout for the ribs to seal off these holes - rivet to the z-channels. And maybe leave a small drainage opening at the bottom on each one just in case there is any water that finds its way in there and needs to get out. That should at least stop any volume of water from blowing in. Then I will caulk the lap joints in the flashing and hopefully it will all be good enough.

thanks for your help!