Waterproofing a retaining wall
I am currently building a retaining wall from creosote timbers. I want to put some sort of waterproofing material on it, but I am concerned that the creosote might eat through it. The best idea can come up with is to apply some 30# organic roofing felt to act as a buffer from the creosote and then some 6 mil plastic over that.
I have seen some of the that aluminum radiant barrier wrap, but it seems pretty delicate and would probably tear during backfilling. I am just trying to find something readily available.