A faced fibrous insulation assembly includes: a fibrous insulation blanket
whose fibers, preferably, are bonded together with a formaldehyde free
binder; a facing formed by a kraft paper sheet material; and an asphalt
coating layer on the inner surface of the facing that bonds the facing to
the fibrous insulation blanket. The asphalt coating layer contains an
odor-reducing additive in an amount sufficient to substantially eliminate
odor that would otherwise be emitted by the asphalt coating layer without
adversely affecting the adherent qualities of the asphalt coating layer.
Preferably, the facing and the asphalt coating layer are fungi growth
resistant.