Step Flashing Vs Roof To Wall Flashing

Every asphalt roofing manufacturer s installation instructions that i have ever seen specify step flashing as the preferred way to flash the roof to wall juncture.

Step flashing vs roof to wall flashing.

Multiple pieces of the flashing will be installed in layers with shingles to ensure the water flows away from the wall. Code s eye view step flashing vs. 363 46 kb while the building code now allows you to install continuous flashing along a sloped roof to wall intersection the author cautions against it and. Aluminum 3 galvanized steel 1 plastic 2 product length in 5 10 3 50 or greater 3 product width in 15.

Get free shipping on qualified step flashing or buy online pick up in store today in the building materials department. Nrca berg points out that while continuous metal flashing is used at wall junctures in certain steep slope roof installations special flashing installation details are required that are different from a step flashing sealed roof and even when installed according to specifications this approach can leave the roof vulnerable to leaks or moisture damage from wind driven rain. Even if one piece of step flashing fails the flashing and shingle below it start the process over again. A headwall is a level junction where a roof meets a wall.

This illustration shows proper flashing at a headwall condition. By glenn mathewson login or register to download the pdf version of this article. It is used for roof to wall flashing. This is true no matter what type of roof covering material is installed.

Lay a bead of. Make corner flashing from step flashing. Headwall flashing should extend up behind the exterior wall covering and down over the roof covering material as you see here. Corner flashing comes first.

This final layer is called counter cover or cap flashing and commonly consists of aluminum galvanized steel copper tin or even plastic. Then sink two nails in the wall near the top one on each face. Step flashing is a rectangular piece of flashing bent 90 degrees in the center. How to install roof flashing against a wall.

Bend it down and back to sit flat on the corner. Roof to wall 1 step flashing 5 material. In contrast to step flashing the next layer is installed in a continuous strip. 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.

Learn how to install it below. Continuous flashing against a sidewall is one way to install a roof but it s not the correct way. Truck tool rental.