L11 Solar Control & Shading Masks 5/6/08
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1 Solar Control & Shading Masks ARCH 331/431 Spring 2008 Lecture 11 announcements 5/6/08 Panel Discussion: How have I used my architectural degree in a non-traditional career path Wednesday May 7, 5:30, Architecture Hall 042 (Sponsored by the Professional Advisory Council; food will be served) Assignment 4: Shading Model Studies Available on the Course Website (due in sections next week) Sun Angle Calculators: ARCH 3/431 Spring
2 two poles of solar control layered, thick, directionally specific facade reflective glass, smooth skin curtain wall Chandigarh High Court, Le Corbusier, Punjab, 1957 ARCH 3/431 Spring
3 Mill Owners Association Building West Facade Price Tower, Frank Lloyd Wright, Bartlesville, Oklahoma, ARCH 3/431 Spring
4 BRE Environmental Building, Feilden Clegg Design, Garston, UK ARCH 3/431 Spring
5 Inland Revenue Center, Michael Hopkins, England, Nottingham, UK, 1995 Magney House, Glenn Murcutt Bingi Point, NSW, ARCH 3/431 Spring
6 Consorcio-Vida Offices, Enrique Browne, Santiago, Sun Path Diagram Sun, Wind & Light pgs MEEB 10th Appendix D.3 pgs ARCH 3/431 Spring
7 1. Site Shading Masks Plotting a picture of the sun s path, and the landforms, buildings, trees and objects that block the sun. Sun Path Diagrams provide a very handy frame of reference for accessing horizon obstructions ARCH 3/431 Spring
8 Obstructions from the previous diagram as seen on a Sun path Diagram (polar, stereographic) Method A: Horizon Survey Find the Altitude and Azimuth of points along the horizon formed by trees, buildings and landforms and plot these on a Sun Path Diagram to make accurate predictions of solar access. ARCH 3/431 Spring
9 Azimuth = 30 o E Solar Transit Altitude = 8 o Method B: Fisheye Photography Fisheye images can see the entire sky vault and document the horizon in a single image. Overlaid on a Sun Path Diagram, accurate predictions of solar access can be made. ARCH 3/431 Spring
10 Vertical site elements span from the horizon toward the zenith ARCH 3/431 Spring
11 horizontal site elements follow profile angle contours ARCH 3/431 Spring
12 Take a fisheye photograph ARCH 3/431 Spring
13 then superimpose a sun path diagram 2. Window Shading Masks Plotting a picture of a window shading device and the sun s path to predict sun and shade on a window ARCH 3/431 Spring
14 Profile Angle J I H = Altitude Angle C B A = Profile Angle ARCH 3/431 Spring
15 Profile Angle Dec. 21 Note: if this is a section through a south-facing window, at noon: Profile Angle = Alt. Angle = 90 o - Lat. + Declination June 21 Sept./Mar. 21 Addressing Seasonal Shading: Movable Shading Devices Deciduous Plants ARCH 3/431 Spring
16 ARCH 3/431 Spring
17 Construction a Window Shading Mask: Making a Shading Mask Protractor 1. Horizontal Projections ARCH 3/431 Spring
18 2. Vertical Projections ARCH 3/431 Spring
19 Sun Path Diagram Overlays Shading Mask Protractor Profile Angle and Angle of Incident Protractor Combination Shading Mask Protractor ARCH 3/431 Spring
20 ARCH 3/431 Spring
21 Birkenstock U.S.A. Façade Shading and Envelope Renovation Novato, California ARCH 3/431 Spring
22 ARCH 3/431 Spring
23 2-Hour Shading Calendar Example: A House in San Luis Obispo < 65 o Closed Balance Point Temperature = 65 o Shading Calendar + Sun Path Diagram San Luis Obispo 36 o N Sun Path Diagram 65 o to 74 o Open > 75 o Closed Change-over Temperature = 75 o June 22 - December 21 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC midnight to 2am to 4am to 6am to 8am to 10am pm to noon noon to 2pm to 4pm to 6pm to 8pm to 10pm pm to midnight ARCH 3/431 Spring
24 2-Hour Shading Calendar Example: A House in San Luis Obispo < 65 o Closed Balance Point Temperature = 65 o 65 o to 74 o Open > 75 o Closed Change-over Temperature = 75 o JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC midnight to 2am Spring December 22 - June 21 2 to 4am to 6am to 8am to 10am pm to noon noon to 2pm to 4pm to 6pm to 8pm to 10pm Fall June 22 - December 21 10pm to midnight December 22 - June 21 June 22 - December 21 ARCH 3/431 Spring
25 Shading Calendar + Sunpath Diagram for FALL realistic temperatures/periods Spring December 22 - June 21 Fall June 22 - December 21 ARCH 3/431 Spring
26 Shading Mask Profile angles to plot horizontal shading devices and radial lines to plot vertical shading devices 50% pt. 100% pt. 100% pt. 50% pt. 100% pt. 0 to 50% shade 50% - 100% shade 100% shade ARCH 3/431 Spring
27 Shading Mask + Shading Angles Profile angles to plot horizontal shading devices and radial lines to plot vertical shading devices South-facing Window NORTH WEST SOUTH EAST ARCH 3/431 Spring
L11 Solar Control & Shading Masks 5/6/08
Solar Control & Shading Masks ARCH 331/431 Spring 2008 Lecture 11 announcements 5/6/08 Panel Discussion: How have I used my architectural degree in a non-traditional career path Wednesday May 7, 5:30,
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FYE 09/30/92 JULY 92 0.00 254,550.00 0.00 0 0 0 0 0 0 0 0 0 254,550.00 0.00 0.00 0.00 0.00 254,550.00 AUG 10,616,710.31 5,299.95 845,656.83 84,565.68 61,084.86 23,480.82 339,734.73 135,893.89 67,946.95
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