One way to create a weatherproof connection is with a weatherproof box. When properly connected, weatherproof electrical boxes keep out the elements and stop moisture from entering. The majority of weatherproof boxes have a rubber seal to keep out dust and moisture.

Since all that is required to make changes, repairs, or additions to a conduit is to remove the covering, junction boxes make wire access simple. Additionally, junction boxes shield wiring from the environment and the elements, which can occasionally be corrosive or otherwise damaging to wiring material.