Caulk Gaps Between Trim and Siding
Fill gaps between trim and siding with acrylic latex caulk. Keep a wet cloth handy to clean up any stray caulk. Smooth the bead with a wet finger.
Foam Large Soffit Gaps
Pull nests from the soffit gaps and then fill these openings with expanding foam. After the foam hardens, cut off the excess with a utility knife.