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Taft, a prefab house in Portland built using a modular system developed by Skylab Architecture in conjunction with MethodHomes

Project name:
Taft
Architecture firm:
Skylab Architecture
Location:
Portland, Oregon, USA
Photography:
Michael Cogliantry, Jeff Van Bergen (construction photos by Skylab)
Principal architect:
Design team:
Jeff Kovel, Principal Design Director. Brent Grubb, Principal In Charge
Collaborators:
MethodHomes
Interior design:
Skylab Architecture
Built area:
3,930 ft²
Site area:
Design year:
Completion year:
2013
Civil engineer:
Structural engineer:
Environmental & MEP:
Landscape:
Lighting:
Supervision:
Visualization:
Tools used:
Construction:
MethodHomes (prefabrication contractor)
Material:
Budget:
Undisclosed
Client:
Private
Status:
Built
Typology:
Residential › House

The Taft is a 3,930-square-foot, two-story, open plan house designed and built using HOMB, a prefabricated modular system developed by Skylab in collaboration with MethodHomes. The system provides an alternative to the typical time-consuming process of conventional site construction while also minimizing waste through precision prefabrication.

The house is built using 28 prefabricated modules. Each of the triangular-shaped, structurally independent modules is 100-square-feet in size and features pre-installed finishes and integrated building systems. Capable of a wide range of assembly configurations, when fit together, the modules create a structurally efficient system. For construction, the building components for the house were divided and shipped to the site via a convoy of six trucks, each carrying 600 square foot of prefabricated modular volumes per truck. With the foundation completed prior to delivery, on-site installation was accomplished within a single day.

Situated on a steeply sloping urban infill site, the property is a modest 20-feet-wide. Outside, the house is wrapped with a blackened cedar rainscreen that rests over two inches of rigid insulation plus blown-in insulation within the walls. Inside, the open plan features a combined living, kitchen, and dining area, with four bedrooms and three-and-one-half bathrooms. The interiors are bright, with ample daylit spaces highlighting the exposed timber ceiling and hardwood floors. The bathrooms are lined with a custom hexagon tile and pattern that was set in the shop prior to delivery. Home systems include radiant in-floor heating, a heat recovery system, and a 6-kilowatt rooftop solar array installed on the rooftop. Stormwater from the roof is managed via flow-thru planters that are integrated into the landscape design to minimize site run-off. An additional separate accessory dwelling unit was built as part of a second phase for a home office and storage.

By using a systemized approach, the house supports a high degree of customization while simultaneously minimizing construction time and needless waste. The result is a house that is holistic in its solution, efficient in terms of construction, responsive to comfort, and mindful of the environment.


By Naser Nader Ibrahim

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