Step flashing

Step flashing: Flashing application method used where a vertical surface meets a sloping roof plane.
Strip shingles: Asphalt shingles that are approximately three times as long as they are wide.

STEP FLASHING:The interweaving of flashing with the roofing material and the materials of a vertical wall surface, required whenever a vertical wall meets the roofing surface (such as in the case of a dormer, skylight, garage or chimney).

Step Flashing: Individual small pieces of metal flashing material used to flash around chimneys, dormers, and such projections along the slope of a roof. The individual pieces are overlapped and stepped up the vertical surface.

Add step flashing and the chimney saddle
Photo 4: Install flashing around the corners
Snip and bend a piece of prebent 8-in. square step flashing to fit 1-1/2 in. around the front corner as shown.

Step Flashing
The two side hips of our roof run into the house wall. To protect the seam where the roof sheathing butts into the house we used step flashing.

Step Flashing
Is it any wonder why almost 80% of homes in North America use asphalt shingles as the roofing material of choice. The prevalence of asphalt shingles has created a vast assortment of fittings and fixtures designed to work with them.

Step Flashing (1) The technique of sealing a joint between metal and built-up membrane with one or two plies of felt or fabric and hot- or cold-applied bitumen; (2) The technique of taping joints between insulation boards or deck panels.

Step Flashing

Used to seal walls down the pitch of a roof'.

Step Flashing
Flashing and counterflashing installed where a sloping roof meets a vertical wall, as at a chimney.
Step flashing ...

step flashing (solin à gradins, m.) Overlapping rectangular or square pieces of flashing used at the junction of a shingled roof and walls. Also called shingle flashing.
step joint Also known as broken joint. See joints.

The top piece of step flashing had to be split in order to fit.
No more shingles needed on the saddle; the ridge will be covered with single-tab ridge shingles. The next main roof shingle was laid out to see how it would fit.

Typically, step flashing is used along the edges of the chimney stack. Leaks often occur at the chimney when flashing fails.

Install aluminum sill, head and step flashing, as recommended by the window manufacturer, carefully interweaving the flashing and the replacement shingles as you move along.

A metal counterflashing for the step flashing that forms the transition from the roof to the rafter is integrated into the pressure bar detail. See Roofing Systems for more discussion on steep-slope roofing systems.

Counter flashing - the metal that laps down over the wall or step flashings, terminating and sealing the juncture where roof meets wall or vertical surface.

As additional protection against leaks where the roof cap meets the wall, short sections of metal flashing called step flashing, are installed. These are put in place one at a time and alternated with the shingles.

6" step flashing is great for this. Cut a slot in it about 2" deep and the width of the screw head. Hold the flashing in place and work the file along the edge of the screw head while resting it on the flashing.

See also: Flashing, Roof, Roofing, Water, Home