We are building a garage extension (with a deck on top of it) to our 2-story home. My draughtsperson is proposing to run a facing board vertically down where the two structures meet, over the weatherboards. I'm going to question this technique, since I was expecting a seamless join where the rusticated weatherboards simply run seamlessly across the 2 structures to create the deck ballustrade wall. The facing board in my opinion accentuates the fact that the garage+deckroof has been "added on later" and looks unpolished.
anyone with technical expertise have ideas why he is proposing this ? I'm not being unreasonable?
Please see attached elevation picture, marked red arrow at the join.