I live in the storm-prone Ozark Mountains, where it’s not uncommon to have a few roof shingles torn loose by the wind. Because roof damage and leaks tend to happen at inopportune times, it’s worthwhile for a homeowner to be prepared.
I keep a roof-patching kit in a sealable plastic container with the following items: multiple tubes of wet/dry roofing-repair caulk and a caulking gun, a narrow putty knife, a utility knife, a hammer, shears for cutting shingles, a compact pry bar and a box of roofing nails. In addition to the kit, an extension ladder is indispensable for roof work. It isn’t a bad idea to keep some matching replacement shingles on hand, either.
When you consider the difficulties that come from a wet, ruined ceiling, this preparation isn’t much trouble.