Dear Kristi:

As someone who has some experience in the area of Historic Preservation
and historic structures (I own, live in, am restoring an 1891 Victorian
Townhouse in Washington, D.C., and have sponsored workshops in Historic
Preservation), you must be very careful with moisture barriers.
I am certain you are familiar with the old physics maxim, "for every
action - there is one or more reactions."  An improperly installed
moisture barrier may not act as a barrier, but promote moisture where it
is not wanted and/or where it will destroy the fabric of the historic
structure.

There is a Historic Preservation Discussion List:
([log in to unmask]).  I am certain if you ask the same question
on this list, the experts there will be happy to respond.

Kind Regards

Roger Wulff
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
Visit our New Barnes & Noble Museum Bookstore - WHERE YOU CAN NOW
EARN FREQUENT FLYER MILES ON YOUR FAVORITE AIRLINES WITH
THE CLICKREWARDS PROGRAM at:

        http://www.washingtonpost.com/yp/museumshopint

Museum Services International is a non-profit organization which
provides planning and implementation services in all areas of cultural
and museum operations - especially in the area of "Economuseology."
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/