Watch This Old House Season 15 Episode 22 Online

The show opens at Hanauma Bay, a sea-filled crater whose marine life attracts thousands of visitors a day, creating a conservation dilemma. At the site, project superintendent Rob Varner gives us a tour of the framed-up addition and rebuilt kitchen area. Up on the roof, our master carpenter sees the hurricane tie-down system connecting the roof to the sidewalls, and roofer Jim Wilkinson and crew install copper valleys, treated red cedar shingles with a 30-year warrantee, and a three-dimensional nylon mesh underlayment that allows the shingles to ""breathe"" and dry more evenly. Inside, electrician Pierre Jaffuel shows us how he's using underfloor junction boxes to cope with the original building's single-wall construction, which leaves no room for buying wires. Project architect Dan Morgan and window maufacturer Sue Marvin discuss the specifications of the new windows, made to match the originals, but with weather and termite-beating features. Then, to begin an inquiry into the high cost