dream dallas home design competition mid century modern revival / #32
project summary
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strategy diagrams
systems perspectives
LEED analysis
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site typologies
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exterior elevations
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costs analysis
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visualizations
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_precedent charged by dallas habitat for humanity and the dallas ica to create a house that is modern, economic, and sustainable within a vernacular texas style of our choice, we as a team began by finding the core values inherent in each style and discovering what fit best with our vision. Mid Century Modern was a time when the charge of architecture was culture not industry, and the evolution of space was about economy and craft. use of prefabrication along with conventional construction began a new stride in the style of architecture across the nation. The house became about shelter and the eternal communication between indoor and outdoor environments. In addition to the stylistic vernacular we also studied the physical building typologies inherent to Texas and the gulf coast region. In our investigation we explored two distinct forms of vernacular architecture in conjunction with mid century modern. The “shotgun” is a long bar of a house with all rooms group in rows and stoops that adorn the front and possibly rear of the house. It is an economical easily constructed typology. The “dogtrot” is a passively configured plan type that utilizes a bisecting covered “porch” usually splitting the program space in two to collect prevailing winds thus decreasing necessatation of mechanically cooled spaces (in temperate weather) combined we can develop a scheme that is compact yet spacious and delivers a passively cooled, historically inspired, economic product.
_concept
compaction and sustainability was our main focus. the linearity of the site lent itself to design a two bar scheme. the bars slip past one another to form served and service spaces while generating a compact plan. the public and private zones are bisected using an open to air “dogtrot” breezeway that at times can double as anciliary space. a series of “mass” walls direct spatial layout and shelter the building from solar heat gain. cedar infill panels, low slung roof planes, expansive glazing and a central hearth are evocative of the mid century modern period.
_construction
drawing inspiration from mid century modern architecture, we implemented a 4-foot module, optimizing the use of conventional building materials and facilitating an ease of construction. CMU blocks and structurally insulated panels (SIP)require minimal cutting and virtually eliminate on-site waste. the use of reclaimed masonry, cedar siding and railroad ties also contributes to the environmential responsiveness of the house.
_stewardship
we spend 80% of our time indoors, as such it is only reasonable that our buildings be responisve and interactive to the environment in which they are sited. in this design the decision to collect and use rainwater should prove beneficial for the house. Rainbarrels on the east facade collect and store rainwater for a subsistence garden in the rear yard, a bioswale becomes the sited street edge, remediating runoff from the roof and the street prior to discharge into the remainder of the site. reclaimed and recylced materials, high efficiency envelope components and proper planning yield a sustainable,successful design that is true to the core values of mid century modern and expressive of sustainability + economy.
project image
typical frame 2/3 impervious
typical frame
mirror public pervious edge
“L” plan
pervious edge
“L” plan mirror public court
density box
pervious fringe
double box
dissolution of yard
“L” internal private court
“L” plan
pervious public edge
bar edge
public garden
shifted bar
pervious edge + 2/3 permeable
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pueblo street
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recycled railroad tie walk
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bedroom
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pervious drive
garden 11 bioswale
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native grasses
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garage
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utility
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living
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kitchen
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dogtrot
shotgun-stoop edge, external court
country porch- external court, urban edge
shotgun + country porch minimizes passive strategies
country porch internal edge
shotgun + dogtrot + country porch exceeds site usage
country porch + shotgun disolution of entry
shotgun + country porch maximum external exposure
country porch + dogtrot axial plan = space division
dogtrot - passive cooling, internal court
dogtrot + porch definitive edge condtion
dogtrot + shotgun external court + definition of site
dogtrot + porch + shotgun external court + passive cool + implied urban edge
summer
high noon
reflective roof surface bounces back solar radiation
winter insualted roof panels mitigate transmitted heat
solar study constructed dogtrot passively collects and distributes temperate breezes into living spaces
operable window units help infiltration of prevailing breezes east/ west house placement promotes cross ventilation
passive breeze collection strategic openings help infiltration of temperate breezes
street edge bioswale collects roof and street runoff and filter the water by natural means
rain water rentention
rain barrels collect roof runoff for irrigation purposes
minimzation in openings at western facade helps reduce cooling loads
“dogtrot� breezeway enhances passive cooling in temperate weather
deep overhangs prevent harsh west light native planting fosters water remediation and a maintenance free yard year around
west elevation
site bioswale set at western edge becomes a visual buffer at the street edge
recycled railroad ties provide an attractive walk and house marquee
reclaimed cedar shiplap adornes the facade as a rot resistant siding material
rain barrels collect and store roof runoff for irrigation purposes
1979 1 979 79 pueblo pu blo pu
south elevation
tive
c erspe p n o secti
iving l h g throu
room
generic tin roof $1/sf 2000 sf
$8000
doors and windows
2x dinensional lumber
$2.50/sf 800 sf
varies $8000
roof SIPS and rafters
metal roof panel
concrete foundation
reclaimed shiplap cedar panels
$10000
misc.framing
$600
millwork
$8000
roof framing
interior finishes
$6000
hvac
$12000
4”d x 8”h x 16”l recycled cmu
4’ x 8’ nominal SIPS
$2.65/sf 1100 sf
cmu walls
plumbing
$10000
lighting
$3.30/sf 1265 sf
SIPS
$4000 site and landscape
$12000 = $85,600 or $66.15/sf
costs analysis
LEED FOR HOMES
pts. possible
pts. achievable
ID
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LL Location and Linkages Site Selection Preferred Locations Infrastructure Community Resources Access to Open Space
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SS Sustainable Sites Site Stewardship Landscaping Local Heat Island Effects Surface Water Management Nontoxic Pest Control Compact Development
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WE Water Efficiency Water Reuse Irrigation System Indoor Water Use
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EA Energy and Atmosphere
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Optimize Energy Performance Water Heating Residential Refrigerant Management
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MR Materials and Resources
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EQ Indoor Environmental Quality
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Integrated Project Planning Durability Management Process Innovative Or Regional Design
Efficient Framing Environmentally Preferable Products Waste Management
Energy Star with IAP Combustion Venting Moisture Control Outdoor Air Ventilation Local Exhaust Distribution of Space Heating and Cooling Air Filtering Containment Control Radon Protection Garage Pollutant Protection
AE Awareness and Education
Education of Homeowner or Tenant Education of Building Manager
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rainwater collection for irrigation
reclaimed and efficient framing material = less waste, more efficiency
bio swale for water collection/ remediation
subsistence gardern promotes off grid living
LEED analysis
western facade