Q. I bought and painted a wood paneled exterior front door a few years back, and every winter the wood shrank, revealing an unpainted border around the panels. I knew what was happening, and when the panels expanded in humid weather, the unpainted streaks disappeared. But this time there is so much shrinkage that I can see daylight around some of the panels. What can I do about that?
— NEIL DUROSS, MEDFIELD NEIL DUROSS, Medfield