Hi. I have a 223 year old log home. We have done a lot of renovating in the past 18 months. We have at least 3 major projects remaining. Our biggest compliant is the basement smell seeping through to the main floor and upstairs. How can we seal or basement off to eliminate the smell or eliminate the smell in the basement. We are hesitant to spray foam insulate because the wood in the basement is beautiful and full of history. We do have central air so I know the smell comes through the registers as well. Please help!