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Capillary break for OSB shear wall

thatsconstruction | Posted in Building Code Questions on

Is there a code to prevent OSB from rotting like my recent build completed in 2017?  Water leaked through a sliding door, and/or water also migrated from the tiled deck outside under the soft sill pan to the OSB sheathing inside the house?  I can’t find a specific code requirement to show the GC.  He says that normal metal flashing was sufficient to protect all framing from water damage.

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Replies

  1. Expert Member
    Michael Maines | | #1

    If you're subject to the IRC, R317.1 likely forbids the situation you have: https://codes.iccsafe.org/content/IRC2015?site_type=public/chapter-3-building-planning#IRC2015_Pt03_Ch03_SecR317. Obviously "normal metal flashing" was NOT sufficient in your case.

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