- Architect: Krannitz Gehl
- Engineer: Swenson Say Faget
- Builder: Hoxie Huggins
In the winter of 2016/17 Nason’s Creations worked with Rob Hoxie and Brian Krannitz to perform the framing and steel erection of this cutting edge home. The clients for this project had a vision for a home that would seamlessly incorporate an elegant Northwest Modern design with the high performance characteristics of a Passive home. This is a lofty goal given that traditionally Passive and LEED Level homes have very simplistic designs and shapes while this home was anything but. Our mission was to achieve less than one air change per hour at a 20 Pascal pressure differential.
To achieve such a goal the methodology used for our framing had to be very tightly regulated and meticulously thought out. Given the split level design of the home the first step was to define the locations of transition from passive to conventional spaces. On the recommendation of the Air Barrier Consultant the top of subfloor and ceilings were chosen for the latitudinal constraints to reduce the space to be controlled and to limit the exposed area from the elements. Sounds simple enough but this meant that all walls sitting on top of the sub floors could not be stood until the joints in the subfloor were sealed with Prosoco Joint and Seam Filler. It also meant the trusses could not be set until the first row of 1/2″ 5 ply ACX was added to and sealed with the top of wall and exterior Zip System connection to complete the barrier. Adding to the challenge we needed a great rapport with the city of Bellevue Building Inspector as we need to Zip Tape all shear wall joints and liquid flash all in field nail heads as the weather allowed to prevent any swelling or water absorption in the Zip Panels.
The challenge for this home was intense and performed in one of the harshest of Seattle winters on record. Despite that the great collaboration of NCI, HHC, and all of the follow on trades involved made the goal a reality.
