My 12-year-old second-story covered porch with a tile floor needs some attention. Several layers of galvanized flashing on the outer edge have rotted out. There doesn’t seem to be any water leaking through the floor into the outdoor living space below, but discoloration issues on the cedar facia. This is South Texas, so I do not deal with freezing often, and not tons of rain.
As a new user, I cannot post a picture. But the installation appears to be rubber membrane over a plywood subfloor, with a 3/4 inch layer of sand?, And then mortar and tile. The builder inserted galvanized flashing between the rubber membrane and the sand, possibly with some kind of adhesive.
The question is, what can I do without pulling up the tile floor which is still reasonably solid? I really just want to transition from the rubber membrane to new flashing with a drip edge. does anyone have a suggestion for me? Thanks!