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Triple Feature - Best Infill Project - Edmonton, Alberta, Canada

Posted by Matt Power

Dec 1, 2012 3:45:00 PM

ON A QUIET street in Edmonton, Alberta, three Canadian homes are testing the limits of sustainable technology. In each case, the building envelope took precedence.

Products

ROOFING: 12/12 roo fslope (solar-electric system)

STRUCTURE: ICFs, EnerGard wall system

SIDING: Custom-bent horizonal lap steel siding, concrete window wells

INSULATION: 12" engeineered walls with expanded polystyrene (EPS), Plasti-fab Advantage Insulating Concrete  Form, recycled cellulose fiber and batt insulation in attic

AIR CONTROL: HRV

WINDOWS: Triple-pane, low-E, argon gas-filled glazing with insulated spacers between panes

HEATING: Air-source heat pump, high-efficiency wood-burning stove (backup heating source), on-demand tankless water heater

APPLIANCES: Samsung induction range, Panasonic microwave, LG Counter Depth refrigerator, Bosch dishwasher, LG washer, Vent-A-Hood range fan

FAUCETS & FIXTURES: Dual-flush toilets, low-flow faucets

CABINETS & TOPS: Quarter-sawn oak cabinetry, site-built concrete countertops with recycled glass

CLEAN FINISHES: Mythic

ALTERNATIVE ENERGY: Sanyo 12.5 kW solar PV panels (58)

FLOORING: 4" structural concrete slab, diamond-polished of passive solar heat storage

LIGHTING: LED and CFL

PAVERS: Wooden stepping blocks made from slices of tree from neighboring lot

First, the similarities: all homes have 4” of polystyrene foam (R-16) under the basement slab, triple-pane, argon-filled windows with low-E coatings and passive solar Triple Feature Edmontondesign. Differences: two of the three homes feature a Nascor wall system that achieves (about) R-48. The other home has a double-wall frame, achieving R-56. Each house has one of three different heating systems: electric baseboard, geothermal or air-source heat pump. The builder estimates that achieving net-zero performance with the middle home design required an extra 7% or 8% in costs, which included everything except the solar panels. The two homes on each end sold quickly, and the middle house just went on sale.

Tour It!

PROJECT: Belgravia Green NZE Home
LOCATION: Edmonton, Alberta, Canada


BUILDER: Effect Home Builders


ARCHITECT: KB Design


LANDSCAPE: Jeanette Boman


PHOTOS:Les Wold

  • Sanyo solar panels

    Three side-by-side homes on an infill lot, each targeting net-zero-energy from a somewhat different angle.

  • Mythic Paint
  • All Weather Windows

    An optimally placed Sanyo 12 kW PV system makes this 1,500-sq.-ft. home the only one of the three that has achieved its net-zero-energy potential. The other two homes are prewired for solar, and have been sold, but to date they have no on-site power source.

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