The flashing on the wall should be flush against it and the porch roof portion should be on top of the shingles.
Porch to roof flashing.
Today the flashing is on top of the siding.
Flashing is installed to surround roof features such as vents chimneys and skylights.
A leaky porch roof is caused by numerous reasons but it is most probably due to damage in the flashing and not the roofing material unless the roofing material is too old and nearing the end of its life.
Roof flashing is a thin material usually galvanized steel that professional roofers use to direct water away from critical areas of the roof wherever the roof plane meets a vertical surface like a wall or a dormer.
This flashing should not be seen for it disrupts the architectural balance of the house.
It is at the back of the porch roof where the roof meets the house siding.
Try to keep the nails as flush as possible to the edges.
Gently hammer the 45 degree cut around the corner of the porch roof seam.
Place the flashing between the joint of the house and the roof.
When a roof leaks the problem is often due to leaks in and around the metal roof flashing that protects roof edges valleys and the junctions between roofing and obstructions such as chimneys dormers and vent pipes.
Because of their versatility.
Often seen on the front and back of a chimney abutting brickwork on flat roofs or where a roof meets the brickwork of a house or outbuilding.
Prepare the area where you will install the roof flashing.
The corner cut should be facing upwards.
Traditionally the flashing was installed and hidden under the siding.
Measure the length of the porch roof joint to determine how much flashing you will need.
Cracks in the shingles can also be the culprit especially if the shingles are underneath a tree branch.
How to install porch roof flashing step 1.
That is fine but it must still look like the flashing is behind the siding.
If you already have faulty flashing installed you.
Expert advice on how to repair roof flashing and chimney flashing prevent ice dams and solve other roof flashing problems.