This Old House: Dorchester #6 (15Mar1979) Heating Plan, Kitchen Skylight

Blue board and cast-iron bathtubs are delivered with the help of a boom truck. Norm shows Bob weatherproofing techniques on the mansard roof, including a metal drip edge and rolled roofing to prevent ice buildup beneath shingles. We get a closer look at refurbished medallions and new trim along the eave line. Inside, Bob and Adam talk about plans to turn two bedroom closets into one with a pair of space saving bypass doors. Joe walks Bob through the heating plan for the house, and shows him the water heater and heating plant in the basement.
Bob revisits the roof and helps Norm install an insulated skylight over the kitchen. Back inside, Bob checks up on the closet construction in the bedroom. Then Bob answers some reader mail.