Wallboard installer Brian Jones shows how he uses a panel lift to install ceilings singlehandedly. Rustic plaster and old beams complete the Old World look of the walls. Richard surveys what's new in the world of septic systems and installs a self-contained membrane bioreactor system in the basement. A granite and cobble border adorns the driveway. In the second half of the hour, on ASK THIS OLD HOUSE, general contractor Tom Silva helps a homeowner solve the mystery of her melted vinyl siding. Then, Tom, along with Kevin, Roger and Richard, asks "What is it?" Afterward, Kevin and a specialist perform a whole-house energy audit.