My next door neighbor has a trilevel house and the siding on the top
level is deteriorating at the point where it meets the roof of the
middle level. What is the correct construction practice for this
situation to prevent the problem in the future? Is this a place where
flashing is required (from the ground I can't tell if any flashing was
used) or was the siding just extended to close to the shingles such
that water flowing down the roof would just soak up into the siding?


John Keith