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California 2018

The 2018 FHB House is a net-zero energy, high-performance home in California’s Sierra Nevada foothills designed to meet the goals of the California 2020 initiative and comply with the most progressive energy code in the country. The project combines a very tight, well-insulated envelope, cutting-edge mechanical systems, and unique material choices, all wrapped up in a one-of-a-kind modern design.

Design

Start With a Steel Deck

Atop the foundation of steel and concrete is a metal pan deck supporting a 4-in. poured-concrete slab.

By Mela Breen, David Good
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To accommodate the sloping lot, the Fine Homebuilding House is grounded by a small central foundation and appears to balance on a series of columns and retaining walls as it stretches to the east and west. Atop the foundation of steel and concrete is a metal pan deck supporting a 4-in. poured-concrete slab, a detail right out of a commercial-building playbook.

Foundation

The mechanical pit is a traditionally formed and poured concrete foundation—with lots of rebar to meet seismic requirements. Perimeter stem walls on two sides and a few piers are poured to carry the steel.

Steel

W10x22 steel beams span from the foundation to the perimeter stem walls, ready to support the elevated platform for the house.

Pan deck

The steel pan deck and rebar grid provide the base for the concrete and the pour proceeds like that for a slab-on-grade foundation.

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Illustrations provided by Chief Architect Software

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California 2018 Videos

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View Comments

  1. BGodfrey | Jul 30, 2018 12:55pm | #1

    I'm curious why you would build that whole concrete deck and then build a conventionally framed one resting on top of it.

    1. Prairie_Architect | Mar 21, 2023 10:20am | #2

      Not that you'll ever see this, but they give a decent explanation here: https://www.finehomebuilding.com/2018/09/19/framing-the-first-floor-over-the-pan-deck

      Sounds like construction was a real pain in the arse. Perhaps an example of, "Just because you can, doesn't mean you should." Very interesting, though. They got to play around with materials and assemblies and - lucky for them - cost was apparently not a factor.

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Fine Homebuilding Magazine

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