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