Step Flashing Vs Roof To Wall Flashing

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Step flashing vs roof to wall flashing.

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. Make corner flashing from step flashing. And in section 905 which covers the installation of all roof coverings of the 2015 irc the first sentence requires compliance with the code and the manufacturer s.

Learn how to install it below. Lay a bead of. Continuous flashing against a sidewall is one way to install a roof but it s not the correct way. Then sink two nails in the wall near the top one on each face.

It sits on top of the finished roof and covers the step 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. This final layer is called counter cover or cap flashing and commonly consists of aluminum galvanized steel copper tin or even plastic. By glenn mathewson login or register to download the pdf version of this article.

Truck tool rental. It is used for roof to wall flashing. Bend it down and back to sit flat on the corner. 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. Multiple pieces of the flashing will be installed in layers with shingles to ensure the water flows away from the wall. This illustration shows proper flashing at a headwall condition. In contrast to step flashing the next layer is installed in a continuous strip.

Corner flashing comes first. Headwall flashing should extend up behind the exterior wall covering and down over the roof covering material as you see here. How to install roof flashing against a wall. This is true no matter what type of roof covering material is installed.

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. 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. Step flashing is a rectangular piece of flashing bent 90 degrees in the center.