The extension should be at least inch for it to work.
Metal roof overhang drip edge.
Roof drip edge specifications are given here.
Step by step install drip edge on a metal roof build the lower rim of roof extended away from the fascia.
A typical metal roof overhang may be 2 to 4 inches or even less.
How where should it be installed on roof eaves gable ends.
How to install drip edge.
The lower edge of a roof should extend beyond the fascia board by about 3 4 inch so that runoff drains into the gutters.
Once free slide the drip edge out and discard.
Roof underlayment requirements over drip edge.
Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood.
Install sheet metal drip cap over the lower rim.
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It can be done.
Insert the wide flank of drip cap underneath the first course of shingle or tile all the.
Gently lift up the shingles on the edge of the roof and locate the nails holding the existing drip edge onto.
Use a flat pry bar and hammer to pry the nails out of the drip edge gently.
Roof drip edge is important for proper roof installation to avoid leaks and to give a straight edge to the roof eaves and gable ends.