Look at the picture below and you can see the wrong installation on the left and the correct way on the right.
Correct gap between shingles and rain gutters.
Some rain runoff by capillary action runs up under the shingle drip edge and down the fascia behind the gutter.
They re typically attached to the gutter with brackets with the upper edge slid under the lower shingles.
Once the apron s in place fasten it with sheet.
Water will blow in there and rot the timber facia.
This can be frustrating and also creates a dangerous situation on porch steps during freez.
I have been installing rain gutters for 25.
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.
Installing drip edge on a new roof or re roofing job our photo illustrates several details of roof drip edge eaves flashing and gable end flashing at an asphalt shingle re roof job we documented in dutchess county new york.
A gutter apron is a bent piece of flashing that tucks up under the shingles and over the gutter.
However a roofing project that is characterized by shoddy or amateur workmanship can lead to higher costs in the long run.
If the run is long you may need flashing to cover the exposed part of the facia.
Many do it yourselfers make this mistake before they even begin.
I do not think it is needed just leave a gap between the drip edge and fascia board.
Why is a drip edge important.
The gutter apron will prevent the dripping.
Don t assume that the gutter is already sloping to the spout.
Flashing will start from underneath the roof and bend down and overlap the back of the gutter.
In almost every instance gutter installers take the path of least resistance and shove the gutter right underneath the roof shingles instead.
The correct placement of a roof drip edge is on top of the roof s exterior cover directly between the sheathing and the fascia board which forms a drainage gap between the drip edge and the fascia board.
Capillary action is a water activity in which water adheres to a surface and follow the surface around.
Slope the gutter down form there towards the spout.
Here are 10 of the most frequently seen roofing mistakes.
As a result the drainage improves water flow and protects the roof from potential water damage.
Have rain water dripping out from between your facia and gutters.
Gutters should be hung where a straight edge laying on your roof shingles can easily extend over the front lip of the gutter this is the proper installment location for the high point of the gutter.
Since the guards fit over the gutter rather than inside they ll cover most standard size gutters.
You may have to temporarily remove your hangers as you go or you can notch out the apron around them.
Starter shingles installed incorrectly or not at all.
Home centers sell a gutter apron in 10 ft.
Without proper installation it is completely pointless.
