There are at least three leaks and one is so bad the wood paneling under the gutter rotted and fell off.
Replacing box gutters with aluminum.
If you do opt to extend the roofline for the aluminum do not let them throw a piece of wood over the box gutters.
For example use aluminum flashing to patch an aluminum gutter.
The gutters do overhang quite a bit so i m sure there is room to saw of the box gutters and put on aluminum gutters.
It s important that the patch match the gutter material.
The most common approaches to eaves trough gutter troubles are to repair and re line the existing integral gutter or to abandon it entirely.
When a box gutter system is failing due to leaks rotting or corrosion one option you have is to replace the box gutters with a more modern gutter system.
First clean all debris from the gutter with a wide putty knife or plastic gutter scoop 4.
Step 1 remove roof shingles before you can remove the existing box gutter you need to remove the shingles surrounding connecting to or overhanging the gutter.
If you don t you ll encourage electrolytic corrosion a process that slowly etches away one metal in favor of the other.