habitat for humanity- dream dallas home design

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dream dallas home design competition mid century modern revival / #32

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Page 1: habitat for humanity- dream dallas home design

dream dallas home design competition mid century modern revival / #32

Page 2: habitat for humanity- dream dallas home design

project summary 4

strategy diagrams 8

systems perspectives 12

LEED analysis 16

Page 3: habitat for humanity- dream dallas home design

site typologies 6

exterior elevations 10

costs analysis 14

visualizations 18

Page 4: habitat for humanity- dream dallas home design

_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 ineach 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 spacewas 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 betweenindoor and outdoor environments.

In addition to the stylistic vernacular we also studied the physical building typologies inherent to Texas and thegulf coast region. In our investigation we explored two distinct forms of vernacular architecture in conjunctionwith mid century modern.

The “shotgun” is a long bar of a house with all rooms group in rows and stoops that adornthe 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 (intemperate weather)

combined we can develop a scheme that is compact yet spacious and delivers a passively cooled, historicallyinspired, economic product.

_conceptcompaction 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 fromsolar heat gain. cedar infill panels, low slung roof planes, expansive glazing and a central hearth are evocative of the mid century modern period.

_constructiondrawing 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 vir-tually eliminate on-site waste. the use of reclaimed masonry, cedar siding and railroad ties also contributes to the environmential re-sponsiveness of the house.

_stewardshipwe 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 designthat is true to the core values of mid century modern and expressive of sustainability + economy.

Page 5: habitat for humanity- dream dallas home design

project image

Page 6: habitat for humanity- dream dallas home design

typical frame2/3 impervious

“L” planpervious edge

density boxpervious fringe

“L” internalprivate court

bar edgepublic garden

shifted barpervious edge+ 2/3 permeable

“L” planpervious public edge

double boxdissolution of yard

“L” plan mirrorpublic court

typical framemirrorpublic pervious edge

Page 7: habitat for humanity- dream dallas home design

pueblo street

24

1

3

6

579

8

9

11

9

10

1

9 10 11

recycled railroad tie walk

bedroom subsistence garden bioswale

pervious drive native grasses garage utility living kitchen dogtrot2 3 4 5 6 7 8

N

Page 8: habitat for humanity- dream dallas home design

shotgun-stoop edge, external court

shotgun + country porchminimizes passive strategies

country porchinternal edge

country porch + shotgundisolution of entry

country porch + dogtrotaxial plan = space division

shotgun + dogtrot + countryporch exceeds site usage

shotgun + country porchmaximum external exposure

country porch- external court, urban edge

dogtrot - passive cooling, internal court

dogtrot + porchdefinitive edge condtion

dogtrot + shotgunexternal court + definition of site

dogtrot + porch + shotgunexternal court + passive cool + implied urban edge

Page 9: habitat for humanity- dream dallas home design

solar study

high noon reflective roof surface bounces back solar radiation

operable windowunits help infiltrationof prevailing breezes

east/ west house placementpromotes cross ventilation

rain barrelscollect roof runoff for irrigation purposes

street edge bioswalecollects roof and street runoff and filter the waterby natural means

insualted roofpanels mitigate transmittedheat

summer

winter

passive breeze collection

rain water rentention

constructed dogtrotpassively collects and distributestemperate breezes into livingspaces

strategic openings helpinfiltration of temperate breezes

Page 10: habitat for humanity- dream dallas home design

minimzation in openingsat western facade helps reduce cooling loads

“dogtrot” breezewayenhances passive coolingin temperate weather

deep overhangsprevent harsh west light

native plantingfosters water remediationand a maintenance free yardyear around

west elevation

Page 11: habitat for humanity- dream dallas home design

p1979 pueblo1979 pueblo99779911 pu11999797999 ppupu bblbb ooooooooo

site bioswaleset at western edgebecomes a visual buffer at the street edge

recycled railroad tiesprovide an attractive walk and house marquee

reclaimed cedar shiplapadornes the facade as a rot resistant siding material

rain barrels collect and store roof runoff for irrigation purposes

south elevation

Page 12: habitat for humanity- dream dallas home design

section pers

pective thro

ugh living r

oom

Page 13: habitat for humanity- dream dallas home design
Page 14: habitat for humanity- dream dallas home design

$1/sf2000 sf $2.50/sf

800 sfvaries$8000

2x dinensional lumber

reclaimed shiplapcedar panels

generic tin roof

concrete foundation $8000 doors and windows $10000 misc.framing $600 millwork $8000 interior finishes $6000 hvac $12000

metal roof panel roof SIPS and rafters roof framing

Page 15: habitat for humanity- dream dallas home design

$2.65/sf1100 sf

$3.30/sf1265 sf

4”d x 8”h x 16”lrecycled cmu

4’ x 8’ nominalSIPS

plumbing $10000 lighting $4000 site and landscape $12000 = $85,600 or $66.15/sf

cmu walls SIPS

costs analysis

Page 16: habitat for humanity- dream dallas home design

LEED FOR HOMES

IDIntegrated Project PlanningDurability Management ProcessInnovative Or Regional Design

LL Location and LinkagesSite SelectionPreferred LocationsInfrastructureCommunity ResourcesAccess to Open Space

SS Sustainable SitesSite StewardshipLandscapingLocal Heat Island EffectsSurface Water ManagementNontoxic Pest ControlCompact Development

WE Water EfficiencyWater ReuseIrrigation SystemIndoor Water Use

EA Energy and AtmosphereOptimize Energy PerformanceWater HeatingResidential Refrigerant Management

MR Materials and ResourcesEfficient FramingEnvironmentally Preferable ProductsWaste Management

EQ Indoor Environmental QualityEnergy Star with IAPCombustion VentingMoisture ControlOutdoor Air VentilationLocal ExhaustDistribution of Space Heating and CoolingAir FilteringContainment ControlRadon ProtectionGarage Pollutant Protection

AE Awareness and EducationEducation of Homeowner or TenantEducation of Building Manager

pts. possible

11 4

34

1124151

22161724

15456

383431

16583

2113323343413

321

136

pts. achievable

6312

722111

16161512

10343

181521

10442

1313

3

83

Page 17: habitat for humanity- dream dallas home design

bio swale for water collection/ remediation

reclaimed and efficient framing material= less waste, more efficiency

rainwater collection for irrigation

subsistence gardern promotes off grid living LEED analysis

Page 18: habitat for humanity- dream dallas home design

western facade

Page 19: habitat for humanity- dream dallas home design