The vertical flange of the flashing is to extend up behind the adjoining siding.
Siding to roof flashing.
On the other hand you ll find some siding parts need to be nailed down under the roof shingles.
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Lift the bottom shingle and slip in the kickout flashing.
Otherwise the siding installer will need to be extra cautious with the new roof.
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.
If the kick out and step flashing can t tuck behind the siding screw on cap flashing to cover it then caulk along the top.
Nail it to the sidewall or glue it if nailing isn t possible.
I made this video this morning and i hope it help explain the flashing wall detail where the siding meets the roof.
Slice along the bend line about 4 inches into the first piece of flashing at the bottom of the roof with tin snips.
Some roofing components such as the flashing are easier to install without the siding.
Videos roofing wrb flashing siding exterior trim plumbing electrical galvanic corrosion explained contact between dissimilar metals like copper fittings threaded into steel pipe or copper flashing fastened with steel nails sets up an electro chemical reaction that causes corrosion and leads.
Cover with cap flashing.
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.
Slip in the flashing.
Step 2 measure the length of the porch roof joint to determine how much flashing you will need.
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Cut a piece.
Lay a shingle over the step flashing starting at the roof edge.
If siding on the house wall abuts the porch roof joint the lowest strip should be removed to install the flashing underneath.
How to install step flashing under siding 1.
The roof deck flange of step flashings are to be fastened to the surface of each shingle in a position whereby the next course of shingles will cover up hide the flashing from view.
Step flashings are to be installed one per course.
In this sense it seems more practical to install the siding first.
