Original roofer did a hack job at this corner slope where a valley drains, and over the last 28 years, this area has slowly rotted.
As photo below shows, the stucco touches the flashing where the bulk of water flows.
The metal flashing does not wrap around the corner, and down the slope. So water is getting under the stucco and flowing into the wall below, as you can see from the large black water stain.
Would liquid flashing work to seal this corner and slope?
I’m thinking of applying a thick band of APOC 264 acrylic/urethane sealant with mesh embedded, connecting the stucco to the existing flashing. I hope that would at least prevent the bulk of the water from getting underneath the stucco