How To Nail Roof Flashing

Nail flashing to roof deck only.

How to nail roof flashing.

Ensure it sits flat and extends at least 8 inches above the shingles. Make corner flashing from step flashing. Nail through flashing into shingle do not extend flashing above top of shingle. Length to extend 5 in.

How to install step flashing with a wall corner step three. Replace the shingles and cover the nail heads with roofing cement. To replace flashing around the vent pipe first remove the shingles covering the flange at the back and sides. But it doesn t work that way.

Bend it back so that it overlaps the corner flashing. Position a new vent pipe flashing over the vent push it down into place and nail where shingles will cover it. Then set the piece down. Once even a small section of roofing cement fails you ll have a leak.

Pry and lift off the flashing. It s much easier to reseal the flashing than it is to patch a water stained wall or ceiling. Bend the 10 in. Before you apply the flashing you ll need to lay down a waterproof membrane.

Especially if you live in an area that gets a lot of snow and ice. Renew flashing seals by chipping out old caulking and mortar along the edges of the flashing. For the valley areas of the roof you will be using valley flashing. 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.

Bend it down and back to sit flat on the corner. Then sink two nails in the wall near the top one on each face. Nail it in place with two nails one. Up the wall and 5 in.

Nail pieces of aluminum sheeting over holes that you can stick your finger through to protect roofing over holes from sagging dimpling cracking and leaking. Fasten loose nails and cover exposed nail heads with roofing cement. Over the roof deck. Pull or cut off any nails.

It may seem as if a single piece of flashing would offer more protection than many pieces of step flashing. Install the underlayment as directed by the manufacturer then set the valley flashing on top of it. Stack pipes vents and chimneys are surrounded with metal flashing laid over tar.