How often should you check exterior caulk and weatherstripping?
Every 6 months (twice a year).
Best months: March and September (Northern Hemisphere)
How to do it
Walk around windows and doors. Recaulk gaps and replace weatherstripping that is flattened or torn.
Why it matters
Drafts and water get in through the same gaps.
Recommended interval: every 6 months, per University of Georgia Cooperative Extension.
General guidance for a typical home; the manufacturer's instructions come first.