Drafty cellar sills

Hi Tom -
I've got a question about cellars. My 1920-era house in Bangor has a
lot of dampness in the cellar. I would like to insulate around the
sills and exposed joists in the ceiling (above the stone and brick
foundation) where a lot of cold air can be felt coming in during the
winter. However, I'm afraid of sealing in moisture and causing
damage. Any suggestions on how to do the job properly?
Thanks -
Rick

Hi Rick,
Spray foam is one possibility. It is not susceptible to moisture problems
and seals extremely well. It is also expensive. An average home will likely
cost at least $1,000
and perhaps two or three times that.
On the other hand, you can figure on basement heat losses that are on the
order of 2-250 gallons for a 1500 square foot ranch house. At current oil
prices, this is a valid option.
Tom