General contractor Tom Silva replicates the old exterior trim details around the new windows in the addition using cellular PVC that will never rot. Master carpenter Norm Abram installs the pre-hung Douglas fir exterior door for the back entry. Architect Paul Rovinelli takes host Kevin O'Connor on a tour of a recently renovated Dutch Colonial Revival that makes the most of its small footprint. Back at the house, Tom gets some help from homeowner Bill Pierce and his dad, Bill Pierce, Sr., as they remove the old bookshelves and plaster wall to gain entry into the new library addition.