2004 Washington Aggregates and Concrete Association award winners -- Seattle DJC.COM

Residential ICF Construction


Wright and Wei-I Han home
ICF blocks were stacked five stories to build the Wright and Wei-I Han home.
Photo courtesy Quad-Lock Building Systems

Wright and Wei-I Han residence

Location: Auburn

Owner/developer: Anonymous

Project team:Tohbak Construction Services, general contractor; Quad-Lock Building Systems, ICF supplier; Herbert C. Pearson, architect; CJR Engineering, structural engineer; Stoneway Concrete, ready-mix supplier




Insulated concrete forms were used along with steel and glass for this five-story, 8,500-square-foot Auburn home. There is no wood framing in the house.

The first floor of the home is a daylight basement. The main entry, on the second floor, is via a concrete slab suspended over a first floor lap pool. A large living area, storage, bathroom, kitchen and pantry can be found on this floor.

The third floor has a library, book room, bathroom and more storage. The fourth floor has a 1,700-square-foot master bedroom. A roof garden tops off the project.

Hydronic radiant floor heating keeps the home warm. The gas boiler that runs the floor heat is also used to heat the pool and provide hot water to a heat exchanger as an emergency backup.

The construction crew was not familiar with ICF construction and used the first floor as its training ground. Once the process was mastered, the remaining floors went up quickly the crew assembled 2,000 square feet of wall in a day and a half.

Quad-Lock ICFs were chosen because of their light weight, one-sided bracing system, pre-approved substrate for the exterior stucco finish, and interior surface that did not require furring.

Finalists in the category included the Richards residence in Battle Ground and the Clear Creek Estates development in Bothell.



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