The Rookery is an ambitious development by a consortium of architects, builders, and engineers in the Olympia, Washington area. At its heart, an extension of the architecture offices of the Artisans Group, the region’s premier Passive House architect, the development model includes 6 one-bedroom apartments above the commercial office space.
The building envelope goes far beyond the code requirements in the Pacific Northwest, as the development team knows well that comfort, air quality, and low energy bills are keys to happy renters (and a sustainable future).
This is also the first project to go through our new facility, prefabricated in the summer of 2024 and installed in September across 4 weeks of site work, involving a significant scope of site-installed structural posts, beams, and connection hardware in addition to insulated wall and roof panels, with interior wall and floor panels to complete the package.
Building Assembly Details
Wall panel assembly
Structural Wall: Lower level: 2×8 Doug Fir SS;
Upper levels: 2×6 Doug Fir SS
Primary Airtightness: Lower level: primary airtightness by others (Intello Plus smart vapor retarder, seams taped with Tescon Vana airsealing tape)
Upper levels: 1/2″ CDX Plywood, joints taped with Tescon Vana
Continuous Insulation: Lower level: 2 3/8″ Gutex wood fiber insulation
Upper level: Densepack cellulose, R-35
*Total finished assembly R-value: Lower level: R-35
Upper level: R-55
Roof panel assembly
Structural Framing: 14″ I-Joist w/ 14″ LVL rims
Primary Airtightness: Intello Plus smart vapor retarder, seams taped with Tescon Vana airsealing tape
Continuous Insulation: Densepack cellulose, R-52
This project also used denseglas exterior gypsum board behind the WRB on a portion of the lower and upper level roof panels, for fire protection requirements.
Other Information:
