James Klassen at 16:52, 19 June 2026

2026-06-19T16:52:46Z

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2026-06-17T15:06:43Z

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<big><big>Division C - Accepted Materials</big></big>
<br>
<big>Group - Vegetated Roof Systems</big>
<hr>
<big><big><big><big><big>CGT Pregrown Tray Vegetated Roof System</big></big></big></big></big><br>
<big><big><big>by Columbia Green Technologies LLC</big></big></big><br>
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| style="background-color:#FFFACD" | '''<big>System/Material Acceptance and Product Details</big>'''
<br>
The information published in the RCABC '''''Roofing Practices Manual''''' and offered below does NOT represent a complete set of the manufacturer’s data or specifications, nor is this system and its various materials recommended or endorsed by the '''''Guarantor'''''. The preparation of a detailed specification is the responsibility of the ''Design Authority''.
|-
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;:
;'''Vegetated Roof System Manufacturer''': [https://columbia-green.com/ ''' https://columbia-green.com/''']
;Accepted for the ''RoofStar Guarantee Program'': June 11, 2026
;Accepted for application in: Vegetated Roof Systems
;Acceptance Criteria: Refer to the [[VRA Standard | RGC Standard for Vegetated Roofs]]
;System Summary: description here, using <br>breaks
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[[File:Extensive VR System (banner).JPG| left | class=img-responsive | link=]]
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;:
;Manufacturer online resources: [link page name]
;System Type: Extensive
;System Depth: give range
;Growing Media Depth: give range
;Vegetation Profile: give manufacturer's profile name or description
;Suitable climate zones: give range or list zone numbers
;System Components<sup>*</sup>: In the usual order, from top to bottom; click on link for Technical Data Sheet (TDS)
:{| class="wikitable"
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*[link '''Component name''']
*[link '''Component name''']
*[link '''Component name''']
*[link '''Component name''']
*[link '''Component name''']
*[link '''Component name''']
*[link '''Component name''']
*[link '''Component name''']
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;<sup>†</sup>Guarantor's Notes: Systems labeled "Inverted" are designed for a ''protected membrane roof assembly'', also known as an inverted ''roof assembly''.

:While ''Semi-intensive'' and ''Intensive vegetated roof systems'' are limited to only ''protected membrane roofs'' (See the [https://rpm.rcabc.org/index.php?title=VRA_Standard#1.1.3.2._Permitted_Vegetated_Roof_Systems Sentence 1.1.3.2.(5)] in the "RGC Standard for Vegetated Roofs"), some vegetated roof system manufacturers offer their systems for ''conventionally insulated roofs''. To request a written Variance to the published limitation, follow the requirements in [https://rpm.rcabc.org/index.php?title=VRA_Standard#1.1.3.6._Variances Article 1.1.3.6.].

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;<sup>*</sup>Conditions and Limitations: Note that system thickness is dependent upon the selection of components, which is determined (in part) by design parameters, including hydrological requirements. Consult with the ''vegetated roof system manufacturer'' for options and saturated system weight.

:Also note that vegetation coverage under the '''''RoofStar Vegetated Roof Guarantee''''' applies only to ''extensive systems'' planted with mats or trays - see [https://rpm.rcabc.org/index.php?title=Guarantee Part 3] of Division A for more about coverage.

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[[Division C: Accepted Materials|<i class="fa fa-chevron-circle-left fa" ></i> Back to ''Accepted Materials'']]

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@@ Line 23: / Line 23: @@
 ;Accepted for application in: Vegetated Roof Systems
 ;Acceptance Criteria: Refer to the [[VRA Standard | RGC Standard for Vegetated Roofs]]
-;System Summary: description here, using <br>breaks
+;System Summary: The Columbia Green Technologies (CGT) '''Pregrown Tray Vegetated Roof System''' provides a turnkey solution that meets or exceeds all guidelines for green roofs. The trays are easy to install and feature interlocking edges which prevent shifting or migration of growing media onto the roof system. At 609.6 mm x 609.6 mm x 117.5 mm deep (24” x 24” x 4.625”), the pre‐grown tray is appropriate for extensive and semi‐intensive vegetative roof profiles.  The modules are pre‐grown with plants (most commonly sedum) selected by the project designer and shipped to the job site with approximately 90%+ vegetation coverage.
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 ;:
-;Manufacturer online resources: [link page name]
+;Manufacturer online resources: [https://columbia-green.com/wp-content/uploads/2020/09/CGT_PRE_GROWN_TRAY_TIS.pdf CGT Pregrown Tray Vegetated Roof System]
 ;System Type: Extensive
-;System Depth: give range
+;System Depth: 117.5 mm (4.625”)
-;Growing Media Depth: give range
+;Growing Media Depth: 117.5 mm (4.625”)
-;Vegetation Profile: give manufacturer's profile name or description
+;Vegetation Profile: Sedum- Grasses- Herbaceous
-;Suitable climate zones: give range or list zone numbers
+;Suitable climate zones: All BC zones, subject to manufacturer's approval
 ;System Components<sup>*</sup>: In the usual order, from top to bottom; click on link for Technical Data Sheet (TDS)
 :{| class="wikitable"
 |-
+|
-*[link '''Component name''']
+*'''Sedums supplied by the manufacturer'''
-*[link '''Component name''']
+*[https://rpm.rcabc.org/images/8/88/CGT_Extensive_Growing_Media_TDS.pdf '''CGT Extensive Growing Media''']
-*[link '''Component name''']
+*'''Tray''' - see [https://columbia-green.com/wp-content/uploads/2020/09/CGT_PRE_GROWN_TRAY_TIS.pdf '''CGT Pregrown Tray Vegetated Roof System'''] for tray specifications
-*[link '''Component name''']
+*[https://rpm.rcabc.org/images/a/a4/CGT_Root_Barrier_ML2109_TDS.pdf '''CGT Root Barrier''']
-*[link '''Component name''']
+:'''Roof Assembly''' by roofing ''Contractor''
-*[link '''Component name''']
-*[link '''Component name''']
+*[https://rpm.rcabc.org/images/4/4c/CGT_Metal_Edger_for_Layered_System_TDS.pdf '''CGT Metal Edger''']
-*[link '''Component name''']
+*[https://rpm.rcabc.org/images/8/8a/CGT_Drain_Box_TDS.pdf '''CGT Drain Box''']
 |}
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Materials:CGT Pregrown Tray Vegetated Roof System - Revision history

James Klassen at 16:52, 19 June 2026

James Klassen: Created page with "__NOTOC__ __NONUMBEREDHEADINGS__ {{DISPLAYTITLE:{{FULLPAGENAME}}}} ..."

James Klassen: Created page with "NOTOC NONUMBEREDHEADINGS {{DISPLAYTITLE:{{FULLPAGENAME}}}} ..."