New patio cover with corrugated galvanize. Leaking pretty good. Its overlapped one hump and the top sheet going down is overlapped over the bottom sheet. There is a 2" drop on the down slope. do I need to drop another 2" to solve?

Where do you first see a leak when it rains?

Where do you first see a leak when it rains?

Towards the bottom closer to the drop between the sheets. Then it starts backing up towards the top of the roof where the roof sheets overlap..