Lexington Project 2015: Part 4: Smart Solutions This Old House : Season 36 Episode 12

How the roofers applied new architectural shingles to the house to coordinate it and the new addition; and a look at the progress on the back deck. Also: preventing the P-trap from the second-floor bathtub from interfering with the decorative ceiling of the kitchen; and finishing up the trim and decking on the corner deck stair.