I have a contractor enclosing a small covered walkway on a commercial building to expand storage inside his restaurant. He is tying into existing stucco wrapped exterior wall, stucco wrapped beams and columns and insists he should not have to remove the stucco to make direct wood to wood connections as I want him to do. He just wants to caulk the joints where the framing is adjacent to the stucco and use long bolts or even nails to make the connections. What do you folks think?