With the roof on, shell framed and windows installed we are able to break through from the existing house to the addition. Security and air temperature are always a concern with additions and renovations so waiting keeps as much of the noise, dust and discomfort out of the home until as late as possible. An unexpected surprise was the original hardwood flooring under the old kitchen linoleum. It will finish beautifully to match the rest of the house and save some budget for other areas.