You may see water stains below the gutter on the fascia and soffit.
Behind gutter vent.
If you have gutters but no gutter apron to stop the water it will wick behind the gutter.
However a gutter apron is different from a drip edge because it hangs over the gutters and then angles back toward the house.
The gutter apron prevents water from ever reaching the soffit by leading water straight into the gutters.
Home centers sell gutter apron in 10 ft.
A gutter apron is similar to a drip edge in that it fits under the shingles and protects the roof deck.
Air now enters under and behind the gutter and into your attic.
How do you address the problem of water running behind your installed gutter.
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.
If you find water dripping behind your gutters it s probably because it was installed without any flashing over the back of the gutter.
When the roof shingles do not extend past the metal drip edge the water will suck back on the metal drip edge.
This problem is common with homes that have roofs that do not have much pitch to them.
Install gutter using brackets of choice.
Ensure that the nails or screws enter the full depth of the wood fascia board below the 1 cutout.
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.
For example most ranch style homes have a 3 12 or 4 12 pitch roof.
Eventually the fascia soffits and even the roof sheathing will rot.
Created from a bent piece of flashing a gutter apron tucks up under the shingles and over the gutter.