Installing Step Flashing On A Roof

Longer than the shingle s exposure.

Installing step flashing on a roof.

Here s how to do it right the first time. Nail through flashing into shingle do not extend flashing above top of shingle and. It may seem as if a single piece of flashing would offer more protection than many pieces of step flashing. Nail flashing to roof deck only.

Multiple pieces of the flashing will be installed in layers with shingles to ensure the water flows away from the wall. 4 deep nail the drip edge to the sheathing every 16 if installing multiple runs of drip edge lap them by 1 4 1 2 inch keeping the nail back from the lapped joint. It is used for roof to wall flashing. Continuous flashing against a sidewall is one way to install a roof but it s not the correct way.

Installation of a continuous sheet of metal flashing from the top of the roof to the bottom of the roof in lieu of step flashing is not a correct method of installation in many instances. Most flashing is 8 inches wide. It is used for roof to wall flashing. Typically flashing is installed using roofing nails and roofing cement.

Bend it down and back to sit flat on the corner. Cut step flashing pieces to be 10 in. Once even a small section of roofing cement fails you ll have a leak. Add the drip edge using drip edge with a nailing edge approx.

In order to properly install new flashing you ll have to remove the shingles surrounding your old flashing and then re lay them after installation. Step flashing is a rectangular piece of flashing bent 90 degrees in the center. Then sink two nails in the wall near the top one on each face. Step 6 make a 10 degree bend on the shingle edge of the flashing approximately 1 2 inch from the edge.

4 inches should go up the house wall and 4 inches should go on top of the porch roof shingles. Once you ve shingled up to the sidewall cut a piece of step flashing at a 45º angle from the outside corner to the bent seam. Flashing is generally installed at any joints or edges in the roof where water could otherwise work its way in. Make corner flashing from step flashing.

Wide and 2 in. Cover tops of step.