I'm in a debate with a architect whether the stucco should have masonry backup or should go over the framed wall. The house has a combination of masonry, stone, and stucco. I proposed to use the stucco in areas above roof lines and areas that would need steel to carry the masonry. He would like to have the whole house be veneered in masonry and apply the stucco in areas over the masonry. His concern is the stucco will crack with the movement of the framing. My proposed idea is for cost savings, with over 1000 S.F. of wall area, to be stucco, we could be talking $$$$$, especially if there is a lot of structural steel that needs to carry the masonry. Does the architect have a valid point? If so, does it outweigh the increased cost?