Split-level house built in 1975
Bad smell at the front door (upper level). No noticeable moisture in either the sill or standing studs, but visible stains. How much of the sill should I remove beyond the visibly affected area to eliminate the smell?
Realize the sill has the wrong type of insulation, how should I approach this in the rest of the house?
Planning to replace the exterior paneling in the summer, but would like to get rid of the bad smell before closing up the floor inside.