Thermal insulation wall

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The Klingenberg wall was one of the high-R walls described by Bruce Coldham in his December 2009 article for Fine Hombuilding, “Six Proven Ways to Build Energy-Smart Walls.” Sustainable Architecture, Passive House Design, Framing Construction, Passive Design, Construction Drawings, Passive House, Eco House, Building Construction, Wall Insulation

When Katrin Klingenberg designed the first single-family Passivhaus in the U.S. in 2003, she used 12-inch-deep I-joists (TJIs) as wall studs. Located in Urbana, Illinois, the house was sheathed on the exterior side of the vertical I-joists with vapor-permeable fiberboard and on the interior with OSB, which acted as an interior air barrier, an interior vapor retarder, and structural bracing. The bays of the engineered studs were filled with blown-in fiberglass insulation.