Nov. 11, 2017
DesignPH – Orientation & Shading Webinar. June 2, 2020
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Ed May | Partner, Building-Type, LLC (architect, passive house consultant, teacher)
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Nov. 11, 2017
NYPH 2020 Technical Workshops
May 19th June 2nd
June 16th TBD…
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Agenda [1 hour]
•
DesignPH Review
•
Sketchup Geolocation
•
Sketchup Orientation and Axes
•
Sketchup Shading Evaluation
•
DesignPH 2.0 Shading Masks
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DesignPH Review
Requirements What you’ll need: • A copy of the DesignPH 2.0 plugin • Sketchup 3-D modeling software • A copy of the PHPP v.8 or 9 (and Excel)
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Nov. 11, 2017
https://foursevenfive.com/designph-2-0/
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Sketchup
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Sketchup Extensions Manager
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Start DesignPH Plugin [Each time you run Sketchup]
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BASIC WORKFLOW
DesignPH Workflow 1) Model Geometry
2) Tag Model Geometry w/ Data
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3) Analyze
4) Export
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DesignPH Workflow 5) Import
6) Complete the PHPP
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Geolocation in Sketchup, Orientation & Axes
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Sketchup Default Orientation
By default, the Y axis (green) is pointing North
The X axis (red) is pointing East
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Geo-Locate Your Model
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Type in the Address or Find on the Map
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Zoom In and ‘Select Region’
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A Scaled Basemap is now in our Scene
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The orientation of the buildings don’t match the drawing Axes though?
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Draw a New Axes
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Draw New Axes X and Y
Drag Mouse
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Now Drawing Snaps to the New Axes
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Reset Axes to World Base Orientation Anytime
Right Mouse Click
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Sketchup Shading
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Site Shading Objects
Relevant Shading Context Modeled Axes Rotated to Match Building
~300ft (100m)
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Site Topography
This Geometry comes from Sketchup’s Geolocation Automatically
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Site Topography
Then draw in simplified shading planes to represent the hills. Don’t have to, but it’ll be much faster to calculate shading factors
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Site Topography
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DesignPH 2.0 Shading
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‘Old’ Style PHPP Inputs oover • • •
Overhang Geometry Side Reveal Geometry Objects in the Field of View
dover
hHori
oreveal
dreveal
dHori
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‘Old’ Style PHPP Inputs
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Nov. 11, 2017
DesignPH 1.0 Shading Technique
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NEW DesignPH 2.0 Shading Masks Un-Shaded Areas
Sun Path
Shaded Areas
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Nov. 11, 2017
NEW DesignPH 2.0 Shading Masks Season
Calculated Shaded Radiation
Calculated Unshaded Radiation
Winter
115.3
÷
158.4
=
0.73
Summer
124.2
÷
180.1
=
0.69
Shading Reduction Factor
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VV-Lo-Res (15 Rays)
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Hi-Res (90 Rays)
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Shading Mask Analysis Points
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Radiation Analysis Circumsolar Diffuse Diffuse Isotropic
Direct Beam
Horizon Brightening
Ground Reflected
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Radiation Analysis WITH NO SHADING
WITH SHADING
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Radiation Analysis WITH NO SHADING
WITH SHADING
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Radiation Analysis: East Window Example East Facing yields more morning direct-beam radiation
Noon
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Nov. 11, 2017
Radiation Analysis: South Window Example South Facing shows more symmetrical daily radiation profile
Noon
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Trees?
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Trees: Winter Shading Factors
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Trees: Summer Shading Factors
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