I'm building concrete steps along the hillside parallel to my exterior wall. Lower part of the wall is concrete foundation and upper part is stucco/felt paper/plywood and wall studs. Part of the steps will be against the stucco.
I know I need a water barrier between the concrete and the stucco part of the wall. Can I just use felt paper? Or self-adhered flashing? I was thinking originally of using galvanized steel roll along the wall but it would be a pain to cut it to match the steps along the wall.
Note : I've used rubber paint to reseal my foundation and I'll have a french drain under the concrete steps.
Also, this is in Socal (not much rain), and this wall is covered by a large eave (so water is not coming down that wall).