In the five years since my company switched from production house framing to remodeling, framing additions has been our bread and butter. Most of our work has been upper-story additions: Since 1989, we've done more than 50. Often, we contract just to tear off the roof, and frame and sheathe the shell of the new upper story. Remodeling contractors in my area know they can call on us to get a new second story on a house in under two weeks (a typical job takes five to eight days). Keeping a job like that dry is a prime concern. In the Seattle area, where we work, you can pretty much count on rain at least once