- Caulk in dry weather when temperatures are moderate. Check all locations, such as:
- Foundation penetrations (electrical, phone, water, cable TV, and gas line entrances)
- Around fans and vents
- Joints between door or window frames and siding
- Check weather-stripping on all exterior doors and adjust as needed. Ensure that door thresholds are a good fit—most are adjustable.
- After any activity in the attic, check that the insulation is evenly distributed.
