Click to enlarge make sure the sheathing wrap overlaps all step flashings.
Porch roof to wall flashing.
Traditionally the flashing was installed and hidden under the siding.
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.
It is at the back of the porch roof where the roof meets the house siding.
The corner cut should be facing upwards.
Gently hammer the 45 degree cut around the corner of the porch roof seam.
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.
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.
The flashing on the wall should be flush against it and the porch roof portion should be on top of the shingles.
Lay the cut flashing down at the corner over a shingle that is already in place.
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.
If you nail on the inside it will damage the flashing and make it less effective.
That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above.
Measure the length of the porch roof joint to determine how much flashing you will need.
Where a slope roof meets a sidewall slip the upper legs of the step flashing under the sheathing wrap see illustration.
Step flashing all flashings must integrate with adjacent materials so water always flows to the exterior following the shingle principle.
Roll flashing to help prevent leaks corrosion resistant metal flashing is typically applied.
There is another place that roof flashing has now invaded.
Metal flashing is very effective and when properly installed can help accommodate roof chimney wall or structural movements due to settling expansion and contraction.
Prepare the area where you will install the roof flashing.
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.
