reflex wrote:
....

Advice and opinions? Much appreciated! Thank you!

W/ all the pictures, there's nothing of the actual structure, only the
top from which to evaluate actual situation fully.

The answer is to reestablish the slope; how is problematical w/o more
details.

The one corner expedient would be to add a downspout at that end and let
it drain both directions; not clear whether that's feasible or not.

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