Objective: design
a low-cost garage with a light and airy upper level art studio for
drawing, sculpture and furniture design.
Special challenges: the structure could only
be located at the southeast corner of the lot adjacent to the existing
driveway; the roof eave and rake could not penetrate the front and
side yards; a 20 foot height limit for the roof was mandatory; a
continuous band of windows at the studio required a novel structural
solution.
Roof
Framing Plan
Window Details
Upper Level Floor Plan
Additional Information:
Zoning regulations limited the building height (from the lowest
elevation of grade to the midpoint of the gable roof at the rake)
to 20 feet. Additionally, the roof eave and the roof rake (facing
the forest and the automobile respectively in the photographs) align
with the setback lines of the property.
The north foundation wall (adjacent to the driveway) is constructed
of concrete to avoid damage from a snow plow clearing the driveway
during the winter months. Flat stones were attached to the inside
surface of the concrete foundation forms giving the finished foundation
walls a rubble appearance.
The windows on the north wall were minimized to
reduce heat loss and to maximize privacy. The expanse of windows
on the upper level of the south, east and west walls, provides a
dramatic view of the National forest. These windows allow abundant
light to enter the one-room studio with its vaulted ceiling.
The construction of the window wall required a method to resist
lateral loads in the absence of shear walls. The solution was to
use steel plates fastened with lag screws to connect the wood columns
between the windows to a continuous built-up 2 × 12 wood header
supporting the roof. These connectors provide the lateral structural
rigidity between the plywood shear panel under the windows attached
to the floor, and the plane of the roof. The plates are contained
in the wall behind the gypsum wallboard. (See architectural drawings
2 and 7, and
structural drawing
S-3.)
A dormer that was intended to be on the north side
of the roof was eliminated because of cost.
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