A Guide to Winterizing Your Home Drafts, Doors, and Dollars To winterize your home, start with the biggest leaks, such as attic hatches, exterior doors, baseboards, and windows. Add adhesive weatherstripping to door jambs and sweeps to the bottom edge; use silicone caulk around window and door casings, plumbing penetrations, and where siding meets the foundation. Do a simple smoke-pencil test: on a windy day, turn on kitchen/bath fans, then move…
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