This scenario usually happens during heavy rainfall.
Gutter nails loose.
However these fasteners can come loose from their respective locations and cause the gutters to hang away from the roof.
A gutter apron is a bent piece of flashing that tucks up under the shingles and over the gutter.
Gutter spikes are often referred to as gutter nails or gutter screws but they are all basically the same thing.
The good thing about loose gutter spikes is that you can see them from the ground.
This causes water to leak into the exterior walls of the home.
The advantage of screws vs nails is that screws are much stronger because of the threads and are much better at not allowing the gutter to move as much depending on the weather.
You should really consider using gutter hangers with screws or if the screws are not long and or thick enough since you re likely going in an existing hole get hangers without the screws and use your own screws.
Gutter nails secure the gutter to the side of the roof or the fascia.
A big nail that goes through the gutter and mounts into the rafters of the fascia board.
If your gutters use long spikes or nails that go through the front of the gutter replace them with threaded spikes for a more secure fit.
You may have to temporarily remove your hangers as you go or you can notch out the apron around them.
Home centers sell a gutter apron in 10 ft.