If water is dripping behind your gutter it s probably because it was installed without any flashing over the back of the gutter.
Roof shingles dont extend over into gutter.
If a drip edge has been installed some of this irregularity can be addressed by the rigidity in the metal.
Now with the new roof on i have trouble getting my hand in the gutter.
So because there s not a magic potion that will do that the way to fix this is to get a flat bar and that s a very thin pry bar.
Too little overhang and the water can leak through into fascia boards.
In some markets you ll see roofers drop shingles down into the gutter.
Too often to compensate for lack of drip edge or flashing shingles are installed too far forward covering what is supposed to be the open trough of your new gutter.
What you need to do is to extend those roof shingles into the gutter.
It s the low side of the gutter and also same place where another 8 length gutter drops into it too.
And you re lifting up the edges of those shingles at the bottom of the roof edge.
I didn t have this problem before.
It s a fine balance but one that professional roofers know all about.
Home centers sell a gutter apron in 10 ft.
Simply put this is faulty installation where the shingles extend too far over the edge of the roof or are too close to the edge.
A gutter apron is a bent piece of flashing that tucks up under the shingles and over the gutter.
Most shingle manufacturers recommend a 1 4 to 3 8 inch overhang over your eave which is where your roof ends by your gutter.
Shingles extend too far.
I ve cleaned the gutters out 4 or 5 times since i bought the house a year ago.
The gutter apron will prevent the dripping.
My plan was to bend and rivet a little sheet of aluminum to make a splash guard on the outside of the gutter at that point and also a splash guard behind the drip edge and into the gutter laying against the fascia.
Too much and the shingles can blow off.
And you re going to slip underneath some flashing.
In many cases and particularly as home ages and settles the roof edge at the eave edge can wave in and out by more than this amount.
Longer overlaps of asphalt shingles past the drip edge will hang over into the gutter will send roof runoff off of the roof rather than into the gutter and will eventually crack break and look gross.