Storm doors are “extra” doors installed in front of an existing exterior door. A storm door provides an added layer of protection for your exterior doors, especially in the winter months, and can help air circulate in warmer weather. Storm doors serve the following functions:
- In winter, a storm door protects a wooden or painted front door from the elements.
- It also allows you to open the front door to allow in light — but not cold air — through the glass panel, as long as temperatures are moderate.
- It provides an added layer of insulation, blocking cold drafts from entering or heated air from escaping through an exterior door.
- In warm weather, screen panels on a storm door allow air to enter and circulate but keep bugs and debris out.