We are redoing our coping and we are trying to make the right decision on what type of brick to use since our tile line and our deck surface have a large gap. We can use safety grip with a half brick to take up the gap or standard bullnose that has a large grout line btwn the brick and the tile. My concern is the effects of salt water on the half brick.. will the half brick fail after 5 yrs and start to fall apart?