As a remodeler, I consider troubleshooting part of my job. And if some sort of trouble—such as a leaky roof—isn't the reason for a remodeling project in the first place, it's usually lurking nearby. On a recent master-suite remodel, the client's request was simple enough: Turn a flat ceiling in the bedroom into a vaulted one. My strategy was to install a structural ridge and rafters below the existing roof, which would create the vaulted ceiling and give me space to add insulation at the same time. The bedroom sat at the intersection of two perpendicular volumes (an ell had...

-OR-