Weatherstripping is an easy way to block cold or hot air from entering the home around doors, windows and electrical plates.
Step 5: Adjustable door sweeps stop drafts from under doors Gaps under doors often let in large amounts of air. Adjustable threshold weatherstrips with rubber or brush sweeps can be installed to block the airflow. Adjustable door sweeps have a brush or rubber skirt that extends from the door to the threshold.