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.
Gutter drip edge detail.
Aluminum gutter apron flashing in birch white model ga wh 4 45 4 45.
A drip edge or a gutter apron keeps your roof secure by filtering out all the water from the attic into the gutter.
Drip edge varies in dimensions but typically the flange that nails to the roof surface is about 2 5 wide and the vertical edge that directs roof runoff down and away is about 1 5 in depth.
Drip edges are metal sheets usually shaped like an l installed at the edge of the roof.
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They differ for their shapes and installation.
No calk galvanized steel drip edge pipe flashing model 11815 11 92 11 92.
The shingles should extend past the top flange of the drip edge.
Home centers sell rolls of 6 in.
Without a drip edge water may end up beneath the shingles and may cause damage to various parts of the home.
Most premade drip edge flashin.
Capillary action is a water activity in which water adheres to a surface and follow the surface around.
Gibraltar building products 10 ft.
The water should roll off these shingles and drop straight down into the gutter.
This keeps your roof safe from rotting and leaking.
Another benefit that wasn t intended but has been a useful outcome from installing a drip edge is that it prevents rodents squirrels and birds from being able to access the attic space via the builder s gap.
You can be confused among these two metals flashings as they are completely identical and serve the same purpose.
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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Use tin snips to cut the roll into two 3 in.
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Because the drip edge directs the water directly down and into the gutters the back of the fascia is protected from excessive moisture.
If your roof has drip edge installed where the fascia meets your shingles with the gutter hung below the drip edge get some rolled flashing and tuck it up under the drip edge and over the top of the gutter.
Also called drip edge flashing or d metal they serve a vital function by directing water away from the fascia and into the gutter.
Galvanized steel drip edge flashing in weathered wood model 08316 7 10 7 10.
The gutter should be mounted on the face of the fascia so that its run which must be sloped towards the downspout lies below the drip edge flashing at all times.
Lengths of drip vary but typically it s sold in ten foot lengths 120.
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