As of Summer 2012
Ecosa Design Studio
is no longer
accepting new projects.
Please see the
"Contact Us" page
for more information.
Thank you.

APS Environmental Showcase Home

Phoenix, Arizona

(in collaboration with Jones Studio, Inc.)

Designed as a “showcase of environmental ideas, strategies, systems, products and materials”, the ESH is a world-renowned example of pushing the environmental edge of energy-, water-, and materials-efficiency, from the site scale to the finish details.  The design takes a simple rectangular plan and simple roof structure, and exploits daylighting, natural ventilation techniques to create architectural richness with precise environmentally responsive form-making.  Placing living spaces at the core, in a narrow form with its long axis east-west, buffered by sleeping spaces to the east and west and utility spaces to the north, this simple form makes for very efficient passive functionality.

The project uses a whole host of environmental cutting edge systems and materials... too many to list here.  The primary building systems are slag-blasted super-efficient Integra insulated CMU wall system with SuperGreen expanding polyurethane foam, engineered wood roof structure, finger-jointed lumber wall framing, recycled steel stud interior framing, metal roofing and fascias, and recycled steel trellises.  The primary passive energy efficient elements are ultra-super-insulated heat-mirror glazing systems (R-9), cellulose insulation (R-40), stained concrete slab thermal flywheel, calculated glazing areas and roof overhangs, “solar sponge” shades on north clerestory, calculated cross and stack natural ventilation, day-long and uniform daylighting.  Active energy elements include 2kw of photovoltaic electricity, solar water heating panels, motorized fabric trellises, zoned high-efficiency heat-pump with 100% fresh-air capability, heat pump water heater, ultra-efficient electric lighting, lighting control system and ultra-efficient appliances.  Water-efficiency elements included no-potable water landscaping, integrated rainwater/graywater harvesting, storage and re-use system, ultra-low-flow fixtures, ultra-low-use appliances, and an entirely sub-surface irrigation system.  Materials efficiency elements included integral color finished concrete floor, recycled glass tile, zero-formaldehyde plywood and MDF cabinets, recycled composite lumber siding, 100% recycled content carpets, recycled marble dust tiles, zero-VOC paints and sealers, non-toxic adhesives and caulking.