Kevin points out the exterior details that bring the outside into the sunroom, like the slate floor tile installer Mark Ferrante is laying. Parged plaster, salvaged hearth tile and carefully stained quarter-sawn oak floors all work to revive the look of the original cottage. Norm visits music icon and old house buff Daryl Hall at his antique home and studio. In the second half of the hour, on ASK THIS OLD HOUSE, master electrician Scott Caron installs several types of surge protection. Then, Tom, Kevin, Roger and Richard ask, "What is it?" Afterward, Roger demonstrates how to cut and shape rocks for hardscaping projects.