Exposing the dynamic potential of a building under construction was behind the development of the seismic exoskeleton that became one of the defining elements of Xiao-Yen’s house.
Design concept and solution: The extensive renovation of this house began by tearing away the layers of substandard remodeling that had accrued over the past 100 years, and replacing it with a 3,800-square-foot contemporary program that includes a more open plan for work and living, a sod roof, and a frameless glass penthouse supported by the steel exoskeleton. The exoskeleton is part of a non-invasive seismic upgrade that preserves the existing building while supporting decks on two floors and a 4Kw bi-facial photovoltaic solar panel system.
The clients are a documentary filmmaker and her husband, an artist who primarily works in assembling found objects. Over decades he has amassed a huge stockpile of old growth redwood. During early design-related conversations he expressed an interest in reusing this material as well as the existing redwood framing that would come out of the portion of the building that would be demolished. The architects were excited about the possibilities of reusing his wood and began designing in options for implementation. During this time, he carefully deconstructed nearly all of the redwood from the existing building by pulling out nails and carefully grading it for quality. The project began to be referred to as “honest sustainability” among the client and architects, meaning it required a lot of sweat equity, but would be ultimately more satisfying than just replacing an obsolete item with something new and shiny. The realm of sustainability was elevated to a higher level where the materials changed state, becoming regenerative.
The architects decided that they would reuse the redwood as the actual exterior siding. The most obvious option was to use it as a rain screen (a layer floating above the actual siding), but this more typical application was rejected as clumsy and bulky, the opposite of the preferred taut and fitted exterior. Ultimately a system was developed where a waterproof underlayment (much like wetsuit material) was installed first. The redwood was then milled into five different sizes and randomly attached to the waterproof membrane. The random pattern of the exterior siding amplifies the movement of the shadow patterns on the wall throughout the day.
Total construction cost:
$ 1.2 million
Architect:
Craig Steely Architecture
8 Beaver Street
San Francisco California 94114
Tel. 415 864 7013
www.craigsteely.com
Video
Sign in to Comment
To write a comment about this story, please sign in. If this is your first time commenting on this site, you will be required to fill out a brief registration form. Your public username will be the beginning of the email address that you enter into the form (everything before the @ symbol). Other than that, none of the information that you enter will be publically displayed.