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Any ideas on the best way to provide a thermal break when using steel studs?

user-773740 | Posted in Energy Efficiency and Durability on

The structure is in Charlotte, NC. The wall assembly is curently drawn as 4″ metal studs with Icynene insulation, 7/16″ OSB fastened directly to the studs, 2 layers of felt and siding.

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Replies

  1. GBA Editor
    Martin Holladay | | #1

    Doug,
    The thermal bridging through steel studs is so great that it's a waste of time to insulate between steel studs.

    Install rigid insulation on the exterior of the OSB — the thicker, the better. Of course, at a bare minimum, you'll have to meet the minimum R-values required by your local code.

    More information can be found in the GBA encyclopedia:
    https://www.greenbuildingadvisor.com/green-basics/steel-studs

  2. homedesign | | #2

    Yes,
    Do NOT use Steel Studs unless you plan to use 100% Outsulation.

  3. homedesign | | #3

    Doug,
    I posted before I saw Martin's post.

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