January 01, 2007
What are you going to do about that black stuff on your old roof?” a friend asked me this summer after viewing the new addition to my home and comparing its pristine, clean shingles to the adjacent, original, 10-year-old roof. “What is that stuff?” I asked. “I think it's mold,” he replied. “What can you do?” I shrugged. “You're the one who works for the roofing people,” he said. “Find out.” So over the next few weeks, in the course of my job as director of publications for RCI, I asked a few of the consultants I routinely deal with about the “black stuff” on my roof. I got some interesting and varied suggestions (some being unprintable), but the most ultimately enlightening (and frustrating) one came from Interface's senior editor and my friend Lyle Hogan, RRC, FRCI, PE: “You're a reporter, aren't you?” Forced, reluctantly, to find my own answers, I did some research.