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.
Water dripping between gutter and fascia.
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.
Unfortunately it doesn t always work that way.
But what happens when your roof s gutters become worn out or cracked or clogged.
Usually this is due to gutter fasteners rusting.
On some homes water tends to drip behind the gutters down the fascia and soffit and then either down the side of the house or straight to the ground.
The gutter apron will prevent the dripping.
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.
This then pushes the guttering out from the roof line by 9 17mm.
When properly installed gutters direct roof runoff into a downspout system and safely away from the house.
For gutters to work properly they must be properly sloped toward the downspouts and the roof must have a drip edge that clears the sides of the gutters closest to the house.
Any rainwater or in sparodic areas then simply misses the gutter.
If water is dripping behind your gutter 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 is called capillary action and run behind your gutters.
Water leaking between gutter and fascia when there is rain the water is expected to roll down the roof and into the gutters.
If you re not closely attuned to the behavior of your home s water drainage system you may not notice this occurrence.
Without looking at the roof it seems that the water is missing the guttering because perhaps the previous owners may have had new fascias overlaid onto the old.
For example most ranch style homes have a 3 12 or 4 12 pitch roof.
This problem is common with homes that have roofs that do not have much pitch to them.
Home centers sell a gutter apron in 10 ft.
The gutters then direct the water to a downspout allowing the water to run down until it reaches the ground.