Difference between revisions of "Materials:CGT Hybrid (Blue-Green) Vegetated Roof System"

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Difference between revisions of "Materials:CGT Hybrid (Blue-Green) Vegetated Roof System"

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<big>Group - Vegetated Roof Systems</big>
 
<big>Group - Vegetated Roof Systems</big>
 
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<big><big><big><big><big>CGT Water Detention Unit Vegetated Roof</big></big></big></big></big><br>
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<big><big><big><big><big>CGT Hybrid (Blue-Green) Vegetated Roof System</big></big></big></big></big><br>
 
<big><big><big>by Columbia Green Technologies LLC</big></big></big><br>
 
<big><big><big>by Columbia Green Technologies LLC</big></big></big><br>
 
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;Accepted for application in: Vegetated Roof Systems
 
;Accepted for application in: Vegetated Roof Systems
 
;Acceptance Criteria: Refer to the [[VRA Standard | RGC Standard for Vegetated Roofs]]
 
;Acceptance Criteria: Refer to the [[VRA Standard | RGC Standard for Vegetated Roofs]]
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;System Summary: description here, using <br>breaks
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;System Summary: The Columbia Green Technologies (CGT) '''Hybrid (Blue-Green) Vegetated Roof System''' allow for rooftop detention underneath our Tray and Layered Green Roof systems.  This hybrid system allows you to maximize your rooftop for stormwater management‐ allowing for projects that want to green the rooftop, while also providing stormwater detention.
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<br>
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:The Water Storage Unit by Columbia Green Technologies (CGT) is a made up of thin‐walled cylindrical columns injection molded of recycled resin of polypropylene for strength and durability.  Water storage units are easy to cut to shape in the field, to work around irregular shapes.
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:(Adapted from the system's technical literature)
 
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;Manufacturer online resources: [link page name]
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;Manufacturer online resources: [https://columbia-green.com/wp-content/uploads/2020/10/CGT_WATER_STORAGE_UNITS_TIS.pdf Hybrid (Blue-Green) Vegetated Roof System]
 
;System Type: Extensive
 
;System Type: Extensive
 
;System Depth: give range
 
;System Depth: give range

Revision as of 17:22, 19 June 2026



Division C - Accepted Materials
Group - Vegetated Roof Systems

CGT Hybrid (Blue-Green) Vegetated Roof System
by Columbia Green Technologies LLC

System/Material Acceptance and Product Details


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.

Vegetated Roof System Manufacturer
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 RGC Standard for Vegetated Roofs
System Summary
The Columbia Green Technologies (CGT) Hybrid (Blue-Green) Vegetated Roof System allow for rooftop detention underneath our Tray and Layered Green Roof systems. This hybrid system allows you to maximize your rooftop for stormwater management‐ allowing for projects that want to green the rooftop, while also providing stormwater detention.
The Water Storage Unit by Columbia Green Technologies (CGT) is a made up of thin‐walled cylindrical columns injection molded of recycled resin of polypropylene for strength and durability. Water storage units are easy to cut to shape in the field, to work around irregular shapes.
(Adapted from the system's technical literature)
Extensive VR System (banner).JPG
Manufacturer online resources
Hybrid (Blue-Green) Vegetated Roof System
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*
In the usual order, from top to bottom; click on link for Technical Data Sheet (TDS)
  • [link Component name]
  • [link Component name]
  • [link Component name]
  • [link Component name]
  • [link Component name]
  • [link Component name]
  • [link Component name]
  • [link Component name]
†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 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 Article 1.1.3.6..
*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 Part 3 of Division A for more about coverage.


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