The other element is if the gutter is not installed behind the drip edge it creates an air gap between the top of the gutter and the bottom of the drip edge which allows a place for the water to go.
Rain dripping behind gutters.
When the roof shingles do not extend past the metal drip edge the water will suck back on the metal drip edge this is called capillary action and run behind your gutters.
Rushing water during rainstorms exposure to weather extremes heavy loads of snow in the coldest climes clogs of fallen leaves and the general ravages of time.
There s no simple answer since there are usually multiple issues at play and each case is different.
This helped with part of the water but there is still a small amount of water during each.
Capillary action is a water activity in which water adheres to a surface and follow the surface around.
However a gutter apron is different from a drip edge because it hangs over the gutters and then angles.
Gutter flashings are typically installed beneath the roofline and inside the gutters themselves.
Being a manufacturer of roof edgings and an installer of gutters i know first hand it s not always possible to get the gutter behind the drip.
Rain gutters take a lot of abuse.
With that in mind let s take a look at the five most common causes of leaky gutters.
Water leaking in behind the facia of your roof could be caused by a couple of things.
A gutter apron is similar to a drip edge in that it fits under the shingles and protects the roof deck.
In other words they prevent water from backing up behind the gutter and then leaking into the fascia and soffits.
I have gutter guards and have recently had them professionally cleaned along with the gutters because prior to water would overrun the gutter guards no matter the level of rain.
While you can buy gutter flashings by the foot an entire package is typically 12 feet long and has a dimension of 2 3 inches.
1 your roof sheets have a hole in them or your screws or nails or equivalent are not watertight anymore or 2 the more common reason is where roof sheets are cut too short or they don t overhang far enough into the gutter.