I have a hundred year old house. I am in the midst of sealing the interior of the rim joist area with sealant, foam board and expanding foam. There are some regions where there is a lot of air infiltration, and I believe one cause is gaps between the exterior siding and the mudsill.
See photos. What would you folks do to seal the outside in this space? Caulk? It is pretty cold now so I may have to wait on this step so the caulk or sealant will set. Specific reccomendations for products appreciated!