[CANUFNET] Floating sidewalks or slabs over tree roots

Tue May 18 14:34:20 EDT 2021

One of the products is only 8.5 cm deep. You can scrape the organic layer to maybe 5 cm depth and then install them and surface on top of that.

I have attached a little more information for those who might be interested. This approach is also being used extensively in the Netherlands for blue green installations. There are quite a few Canadian installations of this approach as well.

Cheers,

Philip

Philip van Wassenaer, B.SC., MFC

Urban Forest Innovations Inc.

1331 Northaven Drive

Mississauga ON L5G 4E8

Tel:  (905) 274-1022

Cell: (647) 221-3046

Fax: (905) 274-2170

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

From: CANUFNET <canufnet-bounces at list.web.net> On Behalf Of Naomi Zurcher via CANUFNET
Sent: May 18, 2021 6:18 AM
To: Canadian Urban Forest Network <canufnet at list.web.net>
Cc: Naomi Zurcher <treerap at sprintmail.com>
Subject: Re: [CANUFNET] Floating sidewalks or slabs over tree roots

Hi Philip:

Since these are existing roots, how are the Permavoid modules being incorporated into an existing rhizosphere. I know Silva Cells and I have never seen a successful retrofit using them so I am wondering how this is being managed with Permavoid?

Thanks

Naomi Zürcher

Arbor Aegis

Urban Forester, Consulting Arborist

On May 17, 2021, at 2:59 PM, Philip van Wassenaer via CANUFNET <canufnet at list.web.net <mailto:canufnet at list.web.net> > wrote:

Crispin,

Depending on the intensity of use, this is an excellent product for bridging over existing roots.

 <https://abtdrains.com/products/low-impact-development/permavoid/> https://abtdrains.com/products/low-impact-development/permavoid/

happy to discuss more with you if you wish.

Philip van Wassenaer, B.SC., MFC

Urban Forest Innovations Inc.

1331 Northaven Drive

Mississauga ON L5G 4E8

Tel:  (905) 274-1022

Cell: (647) 221-3046

Fax: (905) 274-2170

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

From: CANUFNET < <mailto:canufnet-bounces at list.web.net> canufnet-bounces at list.web.net> On Behalf Of Wood, Crispin via CANUFNET
Sent: May 14, 2021 1:38 PM
To: Canadian Urban Forest Network < <mailto:canufnet at list.web.net> canufnet at list.web.net>
Cc: Wood, Crispin < <mailto:woodc at halifax.ca> woodc at halifax.ca>; Osmond, Kevin < <mailto:osmondk at halifax.ca> osmondk at halifax.ca>
Subject: [CANUFNET] Floating sidewalks or slabs over tree roots

Hello Network,

I was wondering if any one might have a standard detail they would be willing to share for either a reinforced floating concrete sidewalk or floating concrete slab (e.g. driveway pad) for use in situations of construction or reconstruction where near surface tree roots exists and limited excavation is preferred. 

Any help is appreciated

CRISPIN WOOD, MSFM

SUPERINTENDENT OF URBAN FORESTRY

ROAD OPERATIONS & CONSTRUCTION

TRANSPORTATION & PUBLIC WORKS

(902) 225-2774 

HΛLIFΛX

PO BOX 1749

HALIFAX NS B3J 3A5
 <http://www.halifax.ca/> halifax.ca

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