How far below the drip edge is the current gutter.
How far below shingles do gutter go.
I started hanging mine based on a this old house episode which said to hang the gutters low enough so that snow sliding off the roof won t damage the gutters about 2 inches below the shingles.
In fact they go as far as reinterpreting roof shingle manufacturer warranties and installation instructions to lead you to believe your roof shingle warranty will be voided if you consider an application under a roof shingle.
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.
See overshooting gutters just below we illustrate shingles installed with too much overhang into the gutter.
The fact is gutter covers have been installed under shingles for more than 100 years.
For example most ranch style homes have a 3 12 or 4 12 pitch roof.
Installing a slide gutter flashing under the shingles and over the back edge of the gutter will prevent water from running behind your gutters which can cause your fascia to rot and deteriorate over time.
Also called drip edge flashing or d metal they serve a vital function by directing water away from the fascia and into the gutter.
A normal gutter will have about 1 2 3 4 of its width sticking out beyond the shingles to catch the runoff.
In some markets you ll see roofers drop shingles down into the gutter.
Drip edges are metal sheets usually shaped like an l installed at the edge of the roof.
No stickout means the water coming off the roof especially in heavy rains when it is cascading off the roof rather than dripping will totally miss the gutter and go straight off onto the ground.
Shingles extend too far.
This problem is common with homes that have roofs that do not have much pitch to them.
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.
The flashing should be slid under both the shingles and the roofing paper but if the one you are using is too short to reach the back edge of.
Without a drip edge water may end up beneath the shingles and may cause damage to various parts of the home.
Why can t you install the new gutter in the same place as the old one.
Tester101 jul 11 12 at 15 06.
One thing that comes up a lot is how far below the shingles the gutters get hanged.
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.
