The Tunnel (2013)

Episode Overview

In the Charlestown project of This Old House, the basement is being revamped into two cozy bedrooms for a rental unit. To maintain warmth and prevent moisture, closed-cell foam insulation is applied to the outside walls. Meanwhile, in the living room of the Beliveau home, host Steve Thomas chats with plaster restoration expert Rory Brennan to explore the techniques used to preserve the original horsehair plaster and the exquisite vintage ornamental features.