Usually this is due to.
Diy gutter leak repair.
The cleaner it is the better your patch will hold over time.
Water should not be able to penetrate through the putty after it has solidified.
To do this pour a small amount of water down the gutter and check the area that was repaired for any signs of water leaking from the crack.
See below for a shopping list and tools subscribe to this old house.
One of the most common repairs we complete out in the field is to seal leaky gutters.
If the holes are larger than nail holes use tin snips to cut a strip of flashing the same amterial as the gutter wide enough to fill the area.
Clean the area with household spray cleaner a scrub brush and rags to get it as clean as possible.
If there are signs of water leakage apply a small amount of the putty to the under side of the gutter.
If you have to resort to a toothbrush for crevices.
Over time rain gutters often start to pull away from the roof allowing water to drip over the gutter sides or between the gutters and the walls.
Apply plastic roofing cement over small holes.
Gutter leaks usually start at rusty spots or seams that have opened up because of expansion and contraction.
However more often then not weeks or even days later the leak returns to the befuddlement of the home owner.
This old house general contractor tom silva has a fast fix for a dripping rain gutter.
Time after time we see the failed efforts of well intentioned diy ers head up the ladder and attempt to silicone and spray their way to success.
Bend the strip to fit and embed the flashing in the cement.
Tighten up loose gutters.