There are a few elements that come into play that cause water to run behind the gutter.
Why is there leaking between my gutter and the house.
Often the real issue is that the gutters aren t fastened tightly to the fascia.
Water can t run off the roof and into the gutter so it runs between the gutter and the roof s edge.
Unless you regularly clean them out your gutters can quickly fill up with leaf litter and debris.
Water should run out the downspout and away from the house without filling the gutter.
This problem is common with homes that have roofs that do not have much pitch to them.
The gutters then direct the water to a downspout allowing the water to run down until it reaches the ground.
When properly installed gutters direct roof runoff into a downspout system and safely away from the house.
Luckily clogged gutters and downspouts are quite easy to spot.
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.
Water leaking between gutter and fascia when there is rain the water is expected to roll down the roof and into the gutters.
When water drips between the fascia and the gutters the problem could be a compromised drip edge but it s also possible the gutters are overflowing.
Loose gutters if your gutters are pulling away or falling off your home it may appear you have a leak.
Gutter leaks usually start at rusty spots or seams that have opened up because of expansion and contraction.
The first cause is when the roofing material is installed many roofers will not extend the roofing material past the roof edging or drip edge.
In most cases you ll notice the problem as soon as you get a close look in your gutters.
Incorrectly sized poorly adjusted or shoddily fastened gutters can lead to excess space between the gutter and roof which will lead to water falling in between.
Usually this is due to gutter fasteners rusting.
For example most ranch style homes have a 3 12 or 4 12 pitch roof.
If the gutters look clear run a hose and fill the gutters with water.
If the gutters are clogged it s possible that the water is overflowing the gutters and this is contributing to the leak.
If your gutter is still basically sound the easiest way to stop the leak is by covering the damaged area with roof and gutter repair tape available at home centers and hardware stores.
A new roof is a huge project and one that has to be carefully balanced with the rest of the fixtures in and around your home.