During a remodel, the roof was
raised on the left side of this house.
The original roof was still in
The contractor installed the
roof vent for the dryer vent, but neglected to add a section of vent pipe
for the dryer to exhaust outside.
As a result, the dryer was just
venting in between the two roof sections.
I've even seen cases where the roofer
completely sealed off the vent going through the roof or left it
disconnected in the attic.
This is not only a fire
hazard, but can also lead to a serious mold problem and if it's a gas dryer
is venting carbon monoxide into the interior of the house structure.
It also literally turns
that area into a hot, humid sauna!