As a frequent occupant of Old Louisville, I can tell you
that the cornices go to hell, and in the process, roof gets
ventilated.
Frequent reminder-Unless you have at least one square
foot of vent per 300 sq. ft. of vented space, you have no
warrantee on most shingles.
Owens-Corning-1-800-ROOFING

Phisherman wrote in message
...

Most older homes have air leaks all over which provides the needed
attic ventilation. Installing ridge and soffet vents are well worth
the cost.