Here's a nifty skylight option you might want to offer your next remodeling clients — the Solatube. It's a 10-inch-diameter dome that installs on the roof coupled with a long, bendable tube that's lined with a reflective coating. All this works together to bring sunlight right down to the ceiling of a dark room. The pipe is 10 inches wide, so it fits between joists and rafters easily. If this all sounds a little like leaving an open hole in the roof, remember that the lower end of the tube is covered by an airtight diffuser, and the tube is sealed to prevent drafts. There will still be some loss to convection, but the manufacturer says that