Hi Patrick,<br><br>In general, green walls can be modeled as a wall with a shading device. Make sure the shading is very close to the wall. There will be very little insulating effect from the leaves, and they are not an efficient wind breakers. Make sure the vegetation for the plant type specified is dense enough to shade the entire wall. Else, you might want to shade only parts of the wall proportionally to the density of the vegetation. Make sure you are not shading the windows, as these are usually kept free from vegetation.<br>
<br>Also, you must pay attention to whether the wall itself is significantly altered due to the vegetation. The most common green walls have the plant rooted in the ground with only minor attachment points on the wall. In this case you model the wall like any other wall. However, sometimes plants are grown on the wall itself, with small shelves filled with earth. If this is the case, you must make sure you model the areas filled with earth if they occupy significant parts of the wall.<br>
<br>Lastly, the attachment points for the plant may in some instances have significant effects on the thermal performance of the wall. Make sure you incorporate this in your model if it applies to your building.<br><br>Let me know if you have any other questions.<br>
<br>Sincerely yours,<br><br><br><b>Ulrik Welle-Strand Horn </b><br>Sustainability Engineer<br><div><br><b>Silpa Inc.</b><br><font size="1"><b>s</b> i m p l e . <b>s</b> c i e n t i f i c . <b>s</b> u s t a i n a b l e<br>
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<font size="1"><div>AMERICAS | MIDDLE EAST | ASIA<br>
<a href="http://www.silpainc.com/" target="_blank">www.silpainc.com</a><br></div><font size="2"><br></font></font><font size="2">India: +91.90080.96083</font><br><br><br><br><br><div class="gmail_quote">On Tue, Oct 21, 2008 at 10:14 PM, Patrick Wilkinson <span dir="ltr"><<a href="mailto:patrick.wilkinson@ibece.net">patrick.wilkinson@ibece.net</a>></span> wrote:<br>
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<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">Has anyone tried to model an external green wall? If so, any
help on how to do this would be great.</span></font></p>
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<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">Thanks</span></font></p>
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<p><b><i><font size="2" face="Arial"><span style="font-size: 11pt; font-family: Arial; font-weight: bold; font-style: italic;">Patrick Wilkinson</span></font></i></b><b><i><font size="2" face="Arial"><span style="font-size: 11pt; font-family: Arial; font-weight: bold; font-style: italic;">,</span></font></i></b><b><i><font size="1" face="Arial"><span style="font-size: 9pt; font-family: Arial; font-weight: bold; font-style: italic;"> </span></font></i></b><b><i><font size="1" face="Arial"><span style="font-size: 9pt; font-family: Arial; font-weight: bold; font-style: italic;">B.Sc. ENG,</span></font></i></b><b><i><font size="1" face="Arial"><span style="font-size: 8pt; font-family: Arial; font-weight: bold; font-style: italic;"> </span></font></i></b><b><i><font size="1" face="Arial"><span style="font-size: 9pt; font-family: Arial; font-weight: bold; font-style: italic;">LEED<sup>®</sup>
AP</span></font></i></b><b><i><font size="1" face="Arial"><span style="font-size: 7.5pt; font-family: Arial; font-weight: bold; font-style: italic;"><br>
Advanced Technology Group</span></font></i></b><b><i><font size="1" face="Arial"><span style="font-size: 7.5pt; font-family: Arial; font-weight: bold; font-style: italic;"><br>
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