SEVENTY-SEVEN
Niwot, Colorado
Seventy Seven
KEY ELEMENTS
- Energy conservation with passive solar
- Warmboard radiant heating
- High-velocity cooling from above
- Natural wood & stone
- Solar PV & solar thermal
PROJECT DESCRIPTION
The Seventy-Seven Project was a custom home project with the primary design goal of creating an elegant interior while meeting the client’s desire for an ultra-efficient residence. We combined state-of-the-art energy-efficient construction, appliances and lighting with commercially available renewable energy systems, such as solar water heating and solar electricity to provide the ultimate green home.
For this project, a passive solar design was developed. Mechanical systems include Warmboard radiant heating from below and high-velocity forced air cooling from above. A sunspace interior concrete slab absorbs the winter sun. Phase change material in the walls absorbs heat and releases it at night when temperatures are cooler. The eaves were also extended to create a shade perimeter around the house during the summer. The large south- and west-facing windows allow ample warm light inside during winter. The result is reduced energy usage and utility costs.
The natural wood and Colorado native stone on the interior blend perfectly with the classic views of the foothills and plains through the large windows and doors. In winter, the wood-burning fireplace creates a warm and welcoming ambiance as the snow falls against the mountain backdrop.
Architect: Watt Architecture