REPAIRS TO ROOF PANEL.
This task covers:
General Mechanics Tool Kit (Item 1, App B)
Refrigeration unit shutdown (TM 9-4110-258-13)
Repair: Overlay Patches.
Patching an aluminum roof is subject to the following limitations:
Patches must not be placed upon nor overlap other patches, unless the underlying patch is full
Do not patch over corrosion or electrolytic damage.