The Princeton Envelope Group (PEG) is a design and research unit at the Princeton University School of Architecture. Headed by Alejandro Zaera-Polo and coordinated by Urtzi Grau. The unit is engaged in a three year research program on the Politics of the Building Envelope the conclusions of which will be published in a forthcoming book by Actar Press, Barcelona+New York.

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New Orleans Vernacular

The dominant housing typology is the so called “shotgun house.” It exists in a great variety – from single shotgun, to double, to camelback.

TITLE: Shotgun Typology

Observations:
-people live on the street due to climate condition
-the shotgun house works in relationship with the street
-the porch is the threshold between public and private space

TITLE: Shotgun Typology: Elevation

The shotgun house:
-3-5 rooms in a row with no hallways
-typical house dimension is 12 ft by 45-60ft
-rooms are generally squarish approximately 12 ft by 14ft
-it has a vertical format
-excellent airflow due to length
Reference: Vlach, John Michael “The Shotgun House: An African Architectural Legacy.”

TITLE: shotgun Typology: Rooms

The shotgun house is a compilation of rooms that can be reorganized according to need and context.

TITLE: Shotgun Prototypes: Rethinking of the Shotgun

The shotgun is limited to around five rooms which equals an apartment for 2-3 people. How can we transform the shotgun in order to provide adequate housing for a larger family or other programmatic variations?

TITLE: Shotgun Prototypes: Vertical Circulation

TITLE: Shotgun Prototypes

These prototypes illustrate the range of possibilities latent to the shotgun typology. It can be used for various programs beyond housing including: cornershops, kindergardens, schools, etc.

Shotgun Prototypes: School Variation

Shotgun Prototypes: Increased Density

The shotgun typology is limited to three stories. To increase the density beyond that the system introduces an extended street. Every shotgun should be approached from the street and have a garden facade.

Vernacular Ornamentation Prototypes

Existing ornamentation patterns will be used as sunshading devices with size and density responding to orientation.

Composite Project Map

The project seeks a new relationship between nature, domesticity and city. The site is divided into 8 unique zones:
Zone 01:
Elevation: (-3)-(-1)m
Orientation: W
Facade Permeability: 25%
Block Porosity: 100%
Program: 100% housing
Zone 02:
Elevation: (-1)-(0)m
Orientation: NW
Facade Permeability: 80%
Block Porosity: 62.5%
Program: 20% retail, 80% housing
Zone 03:
Elevation: (0)-(+1)m
Orientation: NE
Facade Permeability: 50%
Block Porosity: 37.5%
Program: 4% retail, 96% housing
Zone 04:
Elevation: (+1)-(+2)m
Orientation: NE
Facade Permeability: 50%
Block Porosity: 75%
Program: 4% retail, 8% education, 88% retail
Zone 05:
Elevation: (+2)-(+3)m
Orientation: SE
Facade Permeability: 65%
Block Porosity: 12.5%
Program: 12% retail, 6% education, 82% housing
Zone 06:
Elevation: (+1)-(+2)m
Orientation: SW
Facade Permeability: 35%
Block Porosity: 37.5%
Program: 6% retail, 94% housing
Zone 07:
Elevation: (0)-(+1)m
Orientation: SW
Facade Permeability: 35%
Block Porosity: 37.5%
Program: 10% retail, 4% education, 80% housing
Zone 08:
Elevation: (-1)-(0)m
Orientation: W
Facade Permeability: 30%
Block Porosity: 62.5%
Program: 20% retail, 80% housing

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