As mentioned above apron flashing or cover flashing are probably the most common type of roof flashings in the u k.
Porch to roof flashing.
Traditionally the flashing was installed and hidden under the siding.
Gently hammer the 45 degree cut around the corner of the porch roof seam.
This flashing should not be seen for it disrupts the architectural balance of the house.
Prepare the area where you will install the roof flashing.
If you already have faulty flashing installed you.
Today the flashing is on top of the siding.
How to install porch roof flashing step 1.
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.
Place the flashing between the joint of the house and the roof.
That is fine but it must still look like the flashing is behind the siding.
The flashing on the wall should be flush against it and the porch roof portion should be on top of the shingles.
The corner cut should be facing upwards.
Cracks in the shingles can also be the culprit especially if the shingles are underneath a tree branch.
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.
Flashing is installed to surround roof features such as vents chimneys and skylights.
Try to keep the nails as flush as possible to the edges.
Because of their versatility.
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.
Nail the flashing securely in place using roofing nails.
Measure the length of the porch roof joint to determine how much flashing you will need.
Lay the cut flashing down at the corner over a shingle that is already in place.