Arch 366: Environmental Building Design

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Arch 366 Environmental Building Design SOLAR
SHADING
Winter 2004
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The Function of Glazing
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The Function of the Atmosphere
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Which orientations get how much??
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Shading Geometry
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Shading Geometry
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Shading Geometry
Basic shading types
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Basic Shading Types
From Olgyay, Design with Climate 1963
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Basic Shading Types
From Olgyay, Design with Climate 1963
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Basic Shading Types
From Olgyay, Design with Climate 1963
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Basic Shading Types
From Olgyay, Design with Climate 1963
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Basic Shading Types
From Olgyay, Design with Climate 1963
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Basic Shading Types
From Olgyay, Design with Climate 1963
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Differentiated Shading Strategies
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South Facing Shading Strategies
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Louvered shades are commonly used to prevent snow
build up and allow for ventilation at the façade.
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Interior vs. Exterior Shades
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Interior Shading Devices
These do NOT control heat gain -- only issues of
glare.
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Interior Shading Devices
Interior blinds CAN be used to assist in
daylighting and light distribution within the
space.
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Shading Strategies for West and East Elevations
Horizontal overhangs DO NOT WORK.
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Shading Strategies for West and East Elevations
Fins work best. Spacing is an issue, as well as
fin length.
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Shading Strategies for West and East Elevations
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The sun also hits the façade from the north east
and north west during the summer. Fins can be
used to control this oblique light as well. It is
a function of the latitude, window size and fin
depth/frequency.
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Skylights vs. Clerestories
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Odd Building Shapes
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Preventing overheating
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Learning how to plot shadows...
- important to get a quick and dirty
understanding of your building and its shadow
patterns (both INTERIOR and EXTERIOR) - need to
do this BEFORE you commit to extensive designs -
can use computers to simulate - can do sun angle
diagrams - can build a quick massing model and
model it on a HELIODON
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Plotting shadows with these diagrams...
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Shadow at 11 a.m. on June 21
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Shadow at 3 p.m. on Dec 21
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Notice that March 21 and Sept 21 are identical
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Modelling with a Heliodon...
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