Step Flashing Vs Roof To Wall Flashing

L flashing goes where the top part of a roof butts a wall step flashing goes where the side of a roof butts a wall. The flashing needs to be installed before installing the roof shingles the metal flashing is formed with a hook edge and cleated on 12 centers the flashing extends up the wall at least. 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.

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It is used for roof to wall flashing.

Step flashing vs roof to wall flashing.

Counter flashing is the final layer of a three part waterproof barrier installed between a roof and a vertical wall or chimney. Step flashing at roof wall abutments steep slope roofs. Code s eye view step flashing vs. It is used for roof to wall flashing.

Headwall flashing should extend up behind the exterior wall covering and down over the roof covering material as you see here. Multiple pieces of the flashing will be installed in layers with shingles to ensure the water flows away from the wall. A headwall is a level junction where a roof meets a wall. This is true no matter what type of roof covering material is installed.

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. By glenn mathewson login or register to download the pdf version of this article. Use of continuous single piece solid metal flashing vs. One isn t better than the other they re made for different locations.

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. This illustration shows proper flashing at a headwall condition. The first two layers are called base flashing and step flashing. Step flashing is a rectangular piece of flashing bent 90 degrees in the center.

The term reglet flashing refers to an installation method for counter flashing not a separate layer.