This story shows how to apply weatherstripping to a door.
A door that is not well sealed allows a lot of heat to escape from the house through gaps around the sides and bottom. A variety of easy-to-install weatherstripping products can help solve the problem. A storm door will also help reduce heat loss and energy costs.
A typical door opens and closes thousands of times per year, so choose durable weatherstripping products that can be attached securely. Vinyl V-strip and self-stick foam, for instance, are suitable for a window but will probably not last on a door.
By using a combination of products, you can double the protection. For instance, seal a door along the sides and top by installing spring bronze for the edges of the door and outside gasket weatherstripping against the door's face on the outside. Weatherproof the bottom using a sweep on the door's inside face and a weatherstripping threshold or a door shoe on the bottom edge.
About an hour for most weatherstripping applications
Tape measure, knife, tin snips, hacksaw, drill, screwdriver, hammer, putty knife
Measuring and cutting, driving screws and nails
Make any needed repairs to the door and its frame.
Door weatherstripping products, which come with mounting screws or nails
Close the door. Hold the sweep against the threshold but not so tight that it would make the door difficult to close. Drill pilot holes through the center of the holes and attach the sweep with screws. Test by opening and closing the door. Adjust the sweep up or down as needed.
To seal along the door's edge on the sides and top, spring bronze is the best product. Measure carefully and use tin snips to cut the pieces to fit. At the latch you may be able to cut a notch or you may need to cut a small piece that goes behind the latch. Position the pieces carefully and drive small nails to attach. If the door fits tightly, you may need to do some planning.