Larsen Truss vs. Joe Lstiburek’s Ideal Double-Stud Wall Design
I’m designing a house for Rochester, NY, zone 5. It’s going to be a single floor with a finished basement. The roof will be constructed with raised heel trusses and insulated with cellulose. I don’t want air-tight drywall, so I’m planning on using a layer of plywood or osb to form the ceiling air barrier.
I’ve would like a cellulose-insulated double-wall. The two designs that seem to fit well with my roof are “Joe Lstiburek’s Ideal Double-Stud Wall Design” and the “Larsen Truss”. They both allow an interior structural wall with an air barrier that can seal with plywood on the bottom of the truss.
Is there any reason to pick one design over the other? They seem to use similar quantities of materials. The Larsen trusses seem to involve more labor. However, the plywood gussets look like a stronger structure than Lstiburek’s cantilevered plywood supports.
I look forward to your thoughts.
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