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.
Roof drip edge molding.
Roof underlayment requirements over drip edge.
T shape drip edge is an l shaped flashing in which the long leg folds back on itself before heading down 90 degrees to form the short leg.
As a result the drainage improves water flow and protects the roof from potential water damage.
How to install drip edge.
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The lower edge of a roof should extend beyond the fascia board by about 3 4 inch so that runoff drains into the gutters.
Doing this allows the drip edge to fully serve its function which is to direct the path of water away from the roof s edge and away from the fascia.
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Get the real story about drip edge placement.
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Roof drip edge specifications are given here.
The edges of a roof that receive the most moisture particularly those of irregular or steep sloped homes require the most protection and any shingles that extend beyond a certain point are going to eventually bend and fracture along the edges which means if the drip edge is missing or has been eliminated from an.
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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.
Drip edge roof flashing types.
No calk galvanized steel drip edge pipe flashing model 11815 11 92 11 92.
Amerimax c3s 1 5 in x 10 ft unpainted galvanized galvanized steel drip edge.
Does the drip edge metal go under the tarpaper ice and water shield or underlayment on the eave.
As seen in m.
Rv designer e461 heavy duty vinyl insert trim 1 inch wide 100 foot roll white.
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.
L shape drip edge is a simple 90 degree bend with a flare out at the bottom of the short leg.
Why drip edge is a necessity.
