You may see water stains below the gutter on the fascia and soffit.
Behind gutter vent.
For example most ranch style homes have a 3 12 or 4 12 pitch roof.
When the roof shingles do not extend past the metal drip edge the water will suck back on the metal drip edge.
Adding a gutter apron prevents the dripping.
Ensure that the nails or screws enter the full depth of the wood fascia board below the 1 cutout.
If you find water dripping behind your gutters it s probably because it was installed without any flashing over the back of the gutter.
The gutter apron prevents water from ever reaching the soffit by leading water straight into the gutters.
A gutter apron is similar to a drip edge in that it fits under the shingles and protects the roof deck.
Home centers sell gutter apron in 10 ft.
How do you address the problem of water running behind your installed gutter.
This is a sure sign that the gutter apron is missing.
If the gutter protection device requires any mounting onto the roof deck under the shingles under the edge vent or over the top of the edge vent even if the device has airflow openings itself it is not compatible with the edge vent and thus the two products cannot coexist.
The metal gutter is also away from the wood fascia board eliminating wood decay of the fascia board and acting as a roof fascia drip edge.
Air now enters under and behind the gutter and into your attic.
Eventually the fascia soffits and even the roof sheathing will rot.
However a gutter apron is different from a drip edge because it hangs over the gutters and then angles back toward the house.
The best time to add gutter apron is when you re getting new.
Install gutter using brackets of choice.