SOLAR DESIGN AND SHADING APPLICATIONS

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SOLAR DESIGN AND SHADING APPLICATIONS

• INTRODUCTION to DAYLIGHTING and SHADING

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Getty Museum LA
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Getty Museum LA
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E. Faye Jones
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Emilio Ambasz Acros Building Japan
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Classroom N.C. Innovative Design
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SOLAR PATH
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SOLAR ALTITUDE

• Vertical angle of the sun's position above the
  horizon (0 - 90 plus)

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AZIMUTH

• Angle of sun east or west of south

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ZENITH

• Sun position directly overhead (90)

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SITE ANALYSIS VIEWSHED
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SHADING STUDY
COURTYARD VIEWSHED Center
of Courtyard Master Bedroom
Office
The viewshed diagram shows the time of the year
any solar obstruction will occur, by looking at
the corresponding sun path. Here, the office
space shades the courtyard in the early morning
hours of the summer time, while the master
bedroom shades the courtyard in throughout the
afternoon in the winter and late afternoon in the
summer time.
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DAYLIGTING RIGHT-TO-LIGHT STUDY
DAYLIGHT OBSTRUCTION
SHADING MASK
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SUN RAY GEOMETRY winter solstice, noon
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SUN RAY GEOMETRY equinox, noon
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SUN RAY GEOMETRY summer solstice, noon
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SITE ANALYSIS 3D TERRAIN MODELING
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SUNPATH / SOLAR STRESS
East Elevation
South Elevation
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SHADING STUDY SUNPATHS
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SHADING STUDY SHADOW PATTERNS
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Solar Control

• Effects of sun are more problematic in hot
  climates than in cold ones
• Design should reflect seasonal variations in
  solar intensity

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Solar Control

• For areas that can be too hot for comfort
• well considered window placement
• use overhangs to shade walls and openings
• use site features like foliage for shading
• incorporate covered porches
• Radiant barrier, insulation
• use light colored walls
• E/W orientation the best
• Intercept the heat outside the building
  (defensive)
• Exterior elements (awnings)more effective than
  interior(blinds / curtains)

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Solar Control

• For areas that can be too cold for comfort
• max southern exposure
• EW exposures are warmer in summer and colder in
  winter than are S, SW and SE exposures
• increase thermal mass and envelop insulation
• use darker surfaces

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Passive Cooling

• Through Natural Ventilation
• Passive Cooling- remove warm air from building,
  replace it with cooler air, without the use of
  mechanical assistance
• Other methods of passive cooling
• Control Radiation, Evaporation and
  Dehumidification, Mass Effect ( thermal storage)

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CLIMATE ANALYSIS WIND ROSES
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SOLAR CONTROLShading
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3 Types of Shading configurations
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3 Types of Shading configurations With shading
pattern (mask)
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Building -Self Shading
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2 different shading methods Same shading mask
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• Merge Sun Path with Shading Mask
• Provides time and location of shading

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SHADING / SUNLIGHT ANALYSIS Palmer Residence
Alta, Wyoming 43.7 N -111.0 W
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SOLAR STRESS
Living room
Sun incident to south-facing glazing from
mid-September to April.
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SOLAR STRESS
Guest room
Sun incident to west-facing glazing throughout
the year in December from 2 pm to 5 pm, and in
June from 5 pm to 9 pm
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SOLAR STRESS
North patio
Sun does not reach the glazing of the north
patio. Only diffuse light is admitted throughout
the year.
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SOLAR STRESS
North bay windows
Sun incident to north-facing bay windows from
April to mid-September, in the early mornings and
late evenings. Most radiation likely obstructed
by surrounding topography due to low sun angles
at these times.
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