I m guessing this is not a one size fits all situation but matched white fascia drip edges definitely seem most common on homes.
Roof drip edge and fascia.
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.
Drip edges are metal sheets usually shaped like an l installed at the edge of the roof.
This lazy installation causes all kinds of damage to much more than just the fascia.
The correct placement of the drip edge is the top of the roof directly between the shingles and the fascia board.
If the drip edge is laid right up against the fascia or rafters then because of surface tension the water runs right up against the fascia and underneath the soffit.
Without a drip edge water may end up beneath the shingles and may cause damage to various parts of the home.
Remember that every region city or local may have slightly different requirements.
Drip edge flashing directs roof runoff away from the roof fascia and edge and into gutters or at least not down the fascia board if no gutters are installed and it is recommended by roofing standards manufacturers and experts.
How far should a drip edge be from fascia.
The system consists of a formed 20 ga.
Galvanized cleat formed fascia cover and hidden 4 in.
I ve seen drip edges on some homes that do not match fascia and it does look bad.
As a result the drainage improves water flow and protects the roof from potential water damage.
It should be a minimum extension of two inch from the fascia board on the roof.
Drip edge fascia omg drip edge fascia is an easy to install tested and warranted system that acts as the roof s first line of defense against wind and water infiltration.
Please ensure that the drip edge is extended over the gutter.
The drip edge should be installed over a furring strip so that it tails off the fascia board.
However when permitted it is best to have the roof shingles hang over the drip edge by a minimum of 1 4 and a maximum of 3 4.
You want water to stay off your house if you hope to avoid rot.
If this slight overhang is too short water will drip behind the gutters leading to rotted roof sheathing and fascia stained siding and even soil erosion and a flooded basement.
When combined with the drip edge spacing the shingles will clear the fascia by 3 4 1 1 4 total.