Plot: As our master carpenter sets up the table saw to make a sample raised-panel door for the Silvas to consider for their new kitchen, our host sees Tom's system for flashing windows: a layer of waterproof membrane covered with a custom gap of side-bent lead-coated copper. The cementitious clapboards - factory primed and first-coated - go on to great acclaim, and our host meets with landscape designer Stephanie Hubbard to lay out the challenges facing the project: entries to the property, views from inside, transitions among vastly different elevations