[CANUFNET] FW: Tree wells

[Ian Wilson]

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 ?
 
Bill Stephen
Vancouver Park Board

________________________________

From: Ian Wilson [mailto:IWilson at kelowna.ca] 
Sent: Friday, November 07, 2008 9:20 AM
To: Canadian Urban Forest Network
Cc: Stephen, Bill
Subject: RE: [CANUFNET] Tree wells


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.
 
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:
http://www.rubbersidewalk.com/rubber_treewell.htm
 
Ian Wilson
City of Kelowna

	-----Original Message-----
	From: canufnet-bounces at list.web.net
[mailto:canufnet-bounces at list.web.net] On Behalf Of Genosko, Bob
	Sent: Friday, November 07, 2008 8:33 AM
	To: canufnet at list.web.net
	Subject: [CANUFNET] Tree wells
	
	

	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

	Thanks 

	Bob Genosko 
	Operations Supervisor 
	Municipality of Clarington 
	Phone:905-263-2291 
	Fax:905-263-4433 
	e-mail:bgenosko at clarington.net 

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