How to Reseal Windows: Steps, Sealants and When Caulk Will Not Help
To reseal a window, remove the cracked caulk around the frame, clean the gap, fill wide gaps with foam backer rod, and apply a fresh bead of exterior-grade sealant; replace worn weatherstripping on the sash if you can feel drafts at the moving parts. Most beginners can do one window in about an hour. If…