On Mon, 8 Feb 2010 09:36:33 -0800 (PST), woods
wrote:

My daughter's new house has a 4 ft. wide wall in the garage, and the
wall above her front door entry both get condensate on them when it is
cold. Is this an indication there is no vapor barrier there, or no
insulation, or both? This doesn't show up anywhere else in the
house. She does run a humidifier on furnace at 25%.


Not sure, you need to test it. To be sure it is condensate, tape a
square of aluminum foil onto the area in question. If droplets are
on the side facing the room, it is condensate. If droplets are on the
underside, your vapor barrier is in question. For condensate issues,
use more circulation, less draperies. Try running the furnace blower
all the time or a small fan blowing at the area. Most homes will get
winter condensate especially when cooking, heated pots of soup, etc.