the rendering has fallen away from the the outside of my kitchen wall.
i,m looking for a step by step way to repair(never done this before).
its back to the bare brick.
i would make sure the render thats left is sound, give the wall a coat of weather seal
mix some soft/sharp sand and cement 3/2/1
apply to the wall pushing firmly upward and use a straight edge, bit of wood etc to blend and level the thickness to the existing render. hope thats a starter, good luck