[CANUFNET] CANUFNET Digest, Vol 90, Issue 4 Tree Root Protection System

Fri Jul 6 17:10:57 EDT 2012

Martha,
I have to assume that you want to excavate the top layer of soil and surface tree roots and then install the Geoweb. The objective I am guessing is that the deeper mature roots would not be compressed as much by surface compaction/loading due to the geoweb's ability to dissipate loads. How much damage you do the existing root structure will be dependent on how deep you have to go with the Geoweb to get the loading requirements for the new Private Approach.
You may be cutting support roots.

See http://www.greenfix.co.uk/docs/load_installation.pdf

Some level of compaction still needs to be done to the sub-base even with the Geoweb.  The specs are silent about how much sub-base compaction is needed for different types of surface treatment.

There will be no re-growth of tree roots through the Geoweb as it is a segmented system that is not connected.

Mike James
DeepRoot Canada Corp.
Tel: 1 800 561 3883
Tel:  (604) 687-0899 
Cell: (604) 220 9521
Fax: (604) 684-6744
Green Infrastructure For Your Community

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Sent: Friday, July 06, 2012 1:28 PM
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Subject: CANUFNET Digest, Vol 90, Issue 4

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Today's Topics:

   1. Geoweb tree root protection system (Barwinsky, Martha)
   2. Re: Restricting Tree Height (Philip van Wassenaer)

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Message: 1
Date: Fri, 6 Jul 2012 19:24:10 +0000
From: "Barwinsky, Martha" <MBarwinsky at winnipeg.ca>
To: Canadian Urban Forest Network <canufnet at list.web.net>
Subject: [CANUFNET] Geoweb tree root protection system
Message-ID:
	<16B78A1FB4799D4A930B10734AFCF39B0D355F40 at cowsvpemm1.ad.cityofwpg.org>
Content-Type: text/plain; charset="us-ascii"

Has anyone had any experience with Geoweb tree root protection system? This product is being proposed to "bridge" over a boulevard to construct a private approach around a healthy mature boulevard tree. The boulevard is turf with good soil in an older neighbourhood.

Geoweb Tree Root Protection<http://www.greenfix.co.uk/page.php?id=23>

Thanks,
Martha Barwinsky
City Forester
City of Winnipeg
105-1155 Pacific Ave
Winnipeg, MB R3E 3P1
ph: (204) 986-3701
fax: (204) 986-3860

This communication is intended only for the person to whom it is addressed, and may contain information that is confidential.  Any other use, distribution, copying or disclosure is strictly prohibited.  If you have received this communication in error, please notify the sender immediately by phone (204.986.3701) or reply to the message and then delete and destroy any copies of it.

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Message: 2
Date: Fri, 6 Jul 2012 13:15:39 -0400
From: "Philip van Wassenaer" <pwassenaer1022 at rogers.com>
To: "'Canadian Urban Forest Network'" <canufnet at list.web.net>
Subject: Re: [CANUFNET] Restricting Tree Height
Message-ID: <005701cd5b9a$f76b2da0$e64188e0$@rogers.com>
Content-Type: text/plain; charset="utf-8"

Topping is bad?pollarding is not topping?.some older trees may need to be crown reduced in height in order to retain them?it depends. 

But in general, no municipality we have worked for have any ?tree height restriction? policies?

Philip van Wassenaer, B.SC., MFC

1248 Minnewaska Trail

Mississauga, Ontario

Canada, L5G 3S5

Tel:  (905) 274-1022

Cell: (647) 221-3046

Fax: (905) 274-2170

Description: UFI new logo very small

www.urbanforestinnovations.com <http://www.urbanforestinnovations.com/> 

From: canufnet-bounces at list.web.net [mailto:canufnet-bounces at list.web.net] On Behalf Of stephen at ufora.ca
Sent: July-06-12 12:59 PM
To: canufnet at list.web.net
Subject: Re: [CANUFNET] Restricting Tree Height

I?ve seen thousands of pollarded silver maples in Toronto and Chatham that were done systematically over many years.  Tops and sides.  Not done much in the last 20 years or so since we started telling people that topping was bad.

Stephen Smith
Urban Forest Associates Inc.
Urban Forestry and Ecological Restoration www.ufora.ca

From: McLeod, Geoff (IS - Parks) <mailto:Geoff.McLeod at Saskatoon.ca>  

Sent: Thursday, July 05, 2012 5:20 PM

To: mailto:canufnet at list.web.net 

Subject: [CANUFNET] Restricting Tree Height

Okay everyone, here?s one that I have never come across before.  Our corporate media person had someone contact them to see if we in Saskatoon were going to be doing anything about restricting the height of trees in our city.  They claim that some municipalities are already doing this.  I have never heard of this.  Has anyone out there heard of this?  I?d really like to know and some of the history behind this.

Thank you.

?We are what we repeatedly do. Excellence, therefore, is not an act but a habit.? 

Geoff McLeod

BSc, BSF, MSc

Superintendent

Urban Forestry and Pest Management

City of Saskatoon

Parks Branch

Ph: 306.975.2537  Fax: 306.975.3034

Email: geoff.mcleod at saskatoon.ca

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End of CANUFNET Digest, Vol 90, Issue 4
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