foam board WRB tie in with rough openings
We have 1” of XPS tongue and groove foam board used as the water resistive barrier of our house. Existing windows are flanged mounted with tape flashing attaching the flange to the foam board. Under the foam board is OSB sheathing.
We are in the early stages of planning to replace the flanged mounted windows and for a number of reasons are considering to install non-flanged windows.
I’m looking for suggestions on how to best flash the rough openings. Specifically, how to best integrate the water barrier of the foam board with the inside surface of the window rough opening.
Climate zone 6.
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