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<DIV dir=ltr align=left><SPAN class=254054422-14112008><FONT face=Arial
color=#0000ff size=2>Yes, Vancouver discontinued using the pea gravel
epoxy mix because it cracked to readily. We questioned its porosity over time as
fines filled it in, inspection of some older sets did not reveal clear
percolation. I understand that a lot of these permeable stone ideas
require 'vacuuming' from time to time. Cqare to comment on the
rubber sidewalks Amit ?</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=254054422-14112008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=254054422-14112008><FONT face=Arial
color=#0000ff size=2>Bill Stephen</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=254054422-14112008><FONT face=Arial
color=#0000ff size=2>Vancouver Park Board</FONT></SPAN></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
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<FONT face=Tahoma size=2><B>From:</B> Ian Wilson [mailto:IWilson@kelowna.ca]
<BR><B>Sent:</B> Friday, November 07, 2008 9:20 AM<BR><B>To:</B> Canadian Urban
Forest Network<BR><B>Cc:</B> Stephen, Bill<BR><B>Subject:</B> RE: [CANUFNET]
Tree wells<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV><SPAN class=288340617-07112008><FONT face=Arial color=#0000ff size=2>The
product from this company that they advocate for use in tree wells, is "Addaset"
I believe. It appears to be a mixture of fine pea gravel with epoxy
resin. The City of Vancouver used to used to do this (they mixed up their
own recipe) with tree wells in their downtown area. It's very attractive
and seemed to keep weeds etc out of the tree wells but I heard that they were no
longer using it in tree wells. I think the reason was that eventually the
product was lifting up and becoming cracked and chipped and it became a tripping
hazard.</FONT></SPAN></DIV>
<DIV><SPAN class=288340617-07112008><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=288340617-07112008><FONT face=Arial color=#0000ff
size=2>Another possibility that I've been considering is a "pour in place"
recycled crumb rubber product that is bound up with resin, but it also allows
air and water to penetrate. I saw this at the Western Chapter ISA meeting
earlier this year. Has anybody tried this? It probably would not
crack or lift up the same way. We've used the rubber sidewalk pavers
around trees for a few years now, with good success, but I thought this "pour in
place" idea was neat. Here's a link: <A
href="http://www.rubbersidewalk.com/rubber_treewell.htm">http://www.rubbersidewalk.com/rubber_treewell.htm</A></FONT></SPAN></DIV>
<DIV><SPAN class=288340617-07112008><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=288340617-07112008><FONT face=Arial color=#0000ff size=2>Ian
Wilson</FONT></SPAN></DIV>
<DIV><SPAN class=288340617-07112008><FONT face=Arial color=#0000ff size=2>City
of Kelowna</FONT></SPAN></DIV>
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<DIV></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT
face=Tahoma size=2>-----Original Message-----<BR><B>From:</B>
canufnet-bounces@list.web.net [mailto:canufnet-bounces@list.web.net] <B>On
Behalf Of </B>Genosko, Bob<BR><B>Sent:</B> Friday, November 07, 2008 8:33
AM<BR><B>To:</B> canufnet@list.web.net<BR><B>Subject:</B> [CANUFNET] Tree
wells<BR><BR></FONT></DIV><!-- Converted from text/rtf format -->
<P><FONT face=Arial size=2>Hello I was just wondering if anyone has experience
with tree well systems such as "chameleon ways" as advertised in the arborist
magazine. I am looking to see if they are affective and available by a
Canadian distributor</FONT></P>
<P><FONT face=Arial size=2>Thanks</FONT> </P>
<P><B><I><FONT face=Roman size=2>Bob Genosko</FONT></I></B><I></I> <BR><FONT
face=Arial size=2>Operations Supervisor</FONT> <BR><FONT face=Arial
size=2>Municipality of Clarington</FONT> <BR><FONT face=Arial
size=2>Phone:905-263-2291</FONT> <BR><FONT face=Arial
size=2>Fax:905-263-4433</FONT> <BR><FONT face=Arial
size=2>e-mail:bgenosko@clarington.net</FONT> </P></BLOCKQUOTE></BODY></HTML>