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.
Do rain gutters go under the drip edge.
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Water flows back through gutter aprons into the gutter.
The drip edge not only safeguards you from potential damages but it also preserves the appearance of your roof.
The gutter is installed right under the drip edge which is tilted purposely.
If there s a drip edge installed where the fascia meets your shingles and the gutter is hung below the drip edge get some roll flashing and tuck it up under the drip edge and over the top of the gutter.
Use tin snips to cut the gutter apron flashing roll in two 3 in.
Though it depends on your attic design to select a gutter apron or drip edge.
Home centers sell rolls of 6 in.
Water stains dirt debris and dripping water behind a gutter are usually the result of poorly installed or missing drip edge.
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The other element is if the gutter is not installed behind the drip edge it creates an air gap between the top of the gutter and the bottom of the drip edge which allows a place for the water to go.
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They are good for wooden attics where shingles do not extend far enough from the edge of the gutter.
Does the gutter go under over or behind a drip edge.
Capillary action is a water activity in which water adheres to a surface and follow the surface around.
Gutter aprons ensure that rainwater on your roof directly flows into gutter.
Most premade drip edge flashin.
So the rainwater flows into the gutter and out of it through downspouts attached along the wall and away from the house.