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[Week 6] Daylighting in Architecture
[ Parametric Computation, Fabrication and Material Properties ]
The three fundamental design issues in daylighting de-sign are:
1. Glare Control2. Sun Control3. Variation Control
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[Week 6] Daylighting in Architecture
[ Parametric Computation, Fabrication and Material Properties ]
Solar Control is the key issue for Daylighting and Windows
Know your sun angles!
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[Week 6] Daylighting in Architecture
[ Parametric Computation, Fabrication and Material Properties ]
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[Week 6] Daylighting in Architecture
[ Parametric Computation, Fabrication and Material Properties ]
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[Week 6] Daylighting in Architecture
[ Parametric Computation, Fabrication and Material Properties ]
Solar Radiation -- Radiant energy emitted by the sun, especially electromagnetic energy. Radia-tion from the sun sustains life on earth and deter-mines climate.
Irradiance = Power of electromagnetic radiation per unit area (radiative fl ux) incident on a surface. Radiant emittance or radiant exitance is power per unit area radiated by a surface. (SI units are watts per square meter (W/m2).
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[Week 6] Daylighting in Architecture
Dry Bulb Temperature for New York City and Thermal Comfort:
Graph is used to determine dates employed for Solor Irradience
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[Week 6] Daylighting in Architecture
[ Parametric Computation, Fabrication and Material Properties ]
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[Week 6] Daylighting in Architecture
[ Parametric Computation, Fabrication and Material Properties ]
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[Week 6] Daylighting in Architecture
[ Parametric Computation, Fabrication and Material Properties ]
DAYLIGHTING AND VIEWS: Strategies + Components• Overall Strategies:
– Design Well Lit Spaces
– Design daylighting for the task, whether bright light, darkness or highly controllable lighting is required.
– Assess daylighting needs and feasibility for each different portion of the building.
– Install daylight-activated controls.
New York City College of Technology: Arch 3450 Building Performance Workshop_Professors Vaidya + Bakshi
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[Week 6] Daylighting in Architecture
[ Parametric Computation, Fabrication and Material Properties ]
LECTURE OUTLINE
• Shape building for self shading. Building form can assist cooling and lighting by providing self shading through wings, balconies, deep reveals and arcades.
• Deep facades. A façade with some depth creates a buffer zone which can be used for shading elements.
BUILDING ENVELOPE STRATEGIES
New York City College of Technology: Arch 3450 Building Performance Workshop_Professors Vaidya + Bakshi
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[Week 6] Daylighting in Architecture
[ Parametric Computation, Fabrication and Material Properties ]
LECTURE OUTLINE
• Incorporate building envelope features that improve daylighting: deep reveals, splayed reveals, exterior fins, and rounded edges can soften light contrasts.
BUILDING ENVELOPE STRATEGIES
New York City College of Technology: Arch 3450 Building Performance Workshop_Professors Vaidya + Bakshi
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[Week 6] Daylighting in Architecture
[ Parametric Computation, Fabrication and Material Properties ]
LECTURE OUTLINE
DAYLIGHTING & VIEWS
• Incorporate shading elements within windows. Shading devices perform triple duty: keep out sun’s heat, block uncomfortable direct sun, soften harsh daylight contrasts
New York City College of Technology: Arch 3450 Building Performance Workshop_Professors Vaidya + Bakshi
WINDOW STRATEGIES
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[Week 6] Daylighting in Architecture
[ Parametric Computation, Fabrication and Material Properties ]
DAYLIGHTING AND VIEWS: Orientation (in the Northern Hemisphere)
East: Shading is difficult, but critical for comfort and heat gain on both sides.
North: High quality consistent daylight with minimal heat gains, but thermal loss during heating conditions.
South: Good access to strong illumination. Shading is “easy”
West: Shading is difficult, but critical
for comfort and heat gain on both sides.
Generally windows facing north and south create the fewest lighting and heat gain/loss problems.
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[Week 6] Daylighting in Architecture
[ Parametric Computation, Fabrication and Material Properties ]
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[Week 6] Daylighting in Architecture
[ Parametric Computation, Fabrication and Material Properties ]
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[Week 6] Daylighting in Architecture
[ Parametric Computation, Fabrication and Material Properties ]
The Esplanade, Singapore
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[Week 6] Daylighting in Architecture
[ Parametric Computation, Fabrication and Material Properties ]
•Menil collection (Houston)- Renzo Piano Architect Forms to optimize the relationship between sunlight and
shading