Aluminum siding, like vinyl siding, locks together with the surrounding panels to create a solid exterior finish. Over time, weather, especially high winds, or improper installation, can cause the aluminum siding to become loose. Once loosened, aluminum siding can get caught by the wind and ripped from the exterior of the building.
Oddly enough, loose aluminum siding is often caused be siding that has been unsnapped from the track of one of the pieces of surrounding siding. For this reason, a siding unlock tool may be all you will need to complete this project. However, while the siding is out, you may also want to check the conceal fasteners. Any loose fasteners should be secured or replaced before the aluminum siding is replaced.
Step 1: Find the piece of loose aluminum siding. If there is more than one loose piece of siding, start from the top and work your way to the bottom of the siding.
TIP: The edges of aluminum siding can be sharp; be sure to wear heavy work gloves to protect your hands from cuts.
Step 2: Place the siding unlock tool underneath the bottom of the piece of loose siding. The hook should fit underneath the piece of siding.
Step 3: Slowly run the siding unlock tool along the bottom of the siding. It should detach the bottom of the aluminum siding from the piece below it fully, so the siding is only attached to the exterior of the building along the top of the piece.
Step 4: The top of next piece of siding should be exposed. Check for any loose nails. If any are found, add a new nail in the slot nearest the unsound nail. 1 ¼ inch galvanized nails should work for this project.
Step 5: Pull on the piece of siding you partially detached from the exterior. The siding should feel as though it is securely attached to the exterior sheathing. If it feels loose, you should detach the bottom of the piece of siding directly above it. Then look for any loose fasteners, and add more nails as necessary.
Step 6: Reattach the bottom of the pieces of loose aluminum siding. First, push up on the piece of siding to slide the bottom of the siding underneath the top of the piece below it. Then, use the siding unlock tool to extend the bottom lip of the aluminum siding over the top of the piece below it.