Where a slope roof meets a sidewall slip the upper legs of the step flashing under the sheathing wrap see illustration.
Porch roof to wall flashing.
To install the roof wall flashing above the builder bent the top edge of the flashing into a 90 degree lip about 2 cm in width.
Also seen on slate roofs or a tiled roof where it meets a wall like a porch as well as conservatory roofs car porches and lean to s around bay windows this list really does go on and on apron flashings if you are new to roofing or fitting roof flashings this really is a bread and butter place to start master this and the slightly more difficult flashings like step flashings will seem a lot easier.
Flashing is installed to surround roof features such as vents chimneys and skylights.
Today the flashing is on top of the siding.
Click to enlarge make sure the sheathing wrap overlaps all step flashings.
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.
Step flashing all flashings must integrate with adjacent materials so water always flows to the exterior following the shingle principle.
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.
If you already have faulty flashing installed you.
It is at the back of the porch roof where the roof meets the house siding.
That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above.
Flashing a patio roof ledger unless it will be protected from rain by the house s eaves or a solid roof a roof ledger that is fastened directly to a house with wood siding should be capped with galvanized metal z flashing that tucks up under siding to prevent water from seeping in behind it.
Nail the flashing securely in place using roofing nails.
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.
How to install porch roof flashing step 1.
Roll flashing to help prevent leaks corrosion resistant metal flashing is typically applied.
If you nail on the inside it will damage the flashing and make it less effective.
The flashing on the wall should be flush against it and the porch roof portion should be on top of the shingles.
There is another place that roof flashing has now invaded.