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Air sealing vented attic on new construction

blamus20 | Posted in Green Building Techniques on

Its a mono slope trussed roof, with a vented attic, insulation on the attic floor. I assume I’d air seal at house wrap layer for the walls, but then how would I air seal the attic floor to the walls?

Is it generally better to just go for a vaulted ceiling? in which case I’d probably do SIP over trusses, and air seal the walls to the SIP.

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  1. user-2310254 | | #1

    Bernard,

    This article and the sidebar links provide useful advice on this topic (https://www.greenbuildingadvisor.com/articles/dept/musings/how-insulate-attic-floor). The bottom line is that air sealing is critical whether building a vented or unvented attic.

    If you want to ask follow-on questions, be sure to mention where you are located.

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