Hi we have a ti tree and daub house . We were made to put a concert footing along side the limestone footing by council so there is no more movement of the walls. We want to render and put stone on the top. What’s the best material to use to waterproof the crack between the footing wall retaining and the wall.
I understand that cement is a corrosive to limestone hence daub use but we don’t want water coming to the inside of the building
