An insulated duct assembly includes an elongated duct, an insulation
blanket, at least one sheet of escape wick material and a tape layer. The
insulation blanket has an inner wicking layer. The insulation blanket is
applied to the elongated duct so as to create a seam aligned
longitudinally with respect to the duct. The seam is defined by first and
second edges of the insulation blanket. The at least one sheet of escape
wick material is disposed along at least one edge of the insulation
blanket. The at least one sheet of escape wick material has a "C" shaped
cross-section surrounding the at least one edge of the insulation blanket.
The tape layer is disposed along and covers the seam.