WRB & Flashing

Rainscreen Siding Guide

Walls that can drain and dry last a lot longer than walls that stay wet. An air gap between the siding and sheathing lets both dry independently.
Dec. 7, 2023
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There are many ways to create a rainscreen gap between the back of the siding and the drainage plane of the wall (WRB, exterior insulation, surface of ZIP sheathing); here are at least a few options—on paper and in the real world, as well as some background rainscreen information.

Rainscreen Background information—Fundamentals

Rainscreen Walls on Paper (animation)

Rainscreen Walls in the Real World

About the Author

Dan Morrison

Dan Morrison is a founding editor of ProTradeCraft.com, where he is also the editor-in-chief. Fun fact: Dan is also a founding editor of Green Building Advisor and executive editor of Fine Homebuilding.

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