Difference between revisions of "Materials:Hydrotech Extensive Garden Roof Assembly"

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Difference between revisions of "Materials:Hydrotech Extensive Garden Roof Assembly"

 
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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>Hydrotech Extensive Garden Roof Assembly</big></big></big></big></big><br>
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<big><big><big><big><big>Hydrotech Extensive Garden Roof<sup>®</sup> Assembly</big></big></big></big></big><br>
 
<big><big><big>by Hydrotech Membrane Corporation</big></big></big><br>
 
<big><big><big>by Hydrotech Membrane Corporation</big></big></big><br>
 
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;'''Vegetated Roof System Manufacturer''': [http://en.hydrotechmembrane.ca/  '''Hydrotech Membrane Corporation''']
 
;'''Vegetated Roof System Manufacturer''': [http://en.hydrotechmembrane.ca/  '''Hydrotech Membrane Corporation''']
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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: The Extensive Garden Roof<sup>®</sup> Assembly is designed for locations that will receive little maintenance or where structural capabilities are a concern.  It is not intended for recreational use and is typically chosen for its appearance or to help reduce the "urban heat island" effect and minimize stormwater run-off. ''Extensive vegetated roofs'' only require a shallow growing media depth, generally as little as :75 mm to 150 (depending on the region), and therefore add little weight to the roof structure below when compared to a standard ballasted PMR roof (See the link at right to the manufacturer's online resources page for more information)..
 
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[[File:Extensive VR System (sedum tile).jpg|class=img-responsive| link=http://rpm.rcabc.org/images/2/29/SBS_1.3.1-1.jpg]]
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[[File:Extensive VR System (banner).JPG| left | class=img-responsive | link=]]
 
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;Manufacturer online resources: [https://en.hydrotechmembrane.ca/assemblies/garden-roof-assembly/extensive Extensive Garden Roof Assembly]
 
;Manufacturer online resources: [https://en.hydrotechmembrane.ca/assemblies/garden-roof-assembly/extensive Extensive Garden Roof Assembly]
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;System Summary: The Extensive Garden Roof<sup>®</sup> Assembly is designed for locations that will receive little maintenance or where structural capabilities are a concern.<br><br>The Extensive Garden Roof is not intended for recreational use and is typically chosen for its appearance or to help reduce the "urban heat island" effect and minimize stormwater run-off. ''Extensive vegetated roofs'' only require a shallow growing media depth, generally as little as 75 mm to 150 (depending on the region), and therefore add little weight to the roof structure below when compared to a standard ballasted PMR roof.<br><br>Recommended plant types for ''extensive vegetated roofs'' need to be drought, wind and frost resistant, such as self-generating sedums, herbs, grasses and other ''vegetation'' that can withstand harsh growing conditions.<br><br>The water stored in the ''growing media'' and drainage/retention layer is sufficient to sustain the drought resistant ''plants'' between periods of normal rainfall. Thinner assemblies and very lightweight ''growing media'' blends are available for Extensive Garden Roof<sup>®</sup> Assemblies.<br><br>(Adapted from the manufacturer's summary)
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;System Type: Extensive
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;System Depth: 101.6 mm (4") to 203.2 mm (7")
 
;System Depth: 101.6 mm (4") to 203.2 mm (7")
 
;Growing Media Depth: 76.2 mm (3") to 152.4 mm (6")
 
;Growing Media Depth: 76.2 mm (3") to 152.4 mm (6")
 
;Vegetation Profile: varieties of sedums
 
;Vegetation Profile: varieties of sedums
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;Suitable climate zones: 4, 5, 6, 7A, 7B, 8
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;Suitable climate zones: All BC zones, subject to manufacturer's approval
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;System Components:
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;System Components<sup>*</sup>: In the usual order, from top to bottom; click on link for Technical Data Sheet (TDS)
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*'''Instagreen<sup>®</sup> Carpet''' (Click [https://rpm.rcabc.org/images/1/19/Hydrotech_Instagreen_Carpet_TDS.pdf '''here'''] for the Technical Data Sheet PDF)
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*'''Extensive Litetop<sup>®</sup> Growing Media''' (Click [https://rpm.rcabc.org/images/c/c1/Hydrotech_LiteTop_Growing_Media_TDS.pdf '''here'''] for the Technical Data Sheet PDF)
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*'''Litetop<sup>®</sup> Filter''' (Click [https://rpm.rcabc.org/images/7/77/Hydrotech_LiteTop_Filter_TDS.pdf '''here'''] for the Technical Data Sheet PDF)
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|
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*'''Gardendrain GR10''' or '''Gardendrain GR25''' (Click [https://rpm.rcabc.org/images/2/27/Hydrotech_Gardendrain_GR10_TDS.pdf '''here'''] and [https://rpm.rcabc.org/images/d/d6/Hydrotech_Gardendrain_GR25_TDS.pdf '''here'''] for the Technical Data Sheet PDFs)
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*[https://rpm.rcabc.org/images/1/19/Hydrotech_Instagreen_Carpet_TDS.pdf '''Instagreen<sup>®</sup> Carpet''']
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*'''Root Stop Standard''' (Click [https://rpm.rcabc.org/images/2/2a/Hydrotech_Root_Stop_TDS.pdf '''here'''] for the Technical Data Sheet PDF)
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*[https://rpm.rcabc.org/images/c/c1/Hydrotech_LiteTop_Growing_Media_TDS.pdf '''Extensive Litetop<sup>®</sup> Growing Media''']
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*'''Root Stop Tape''' (Click [https://rpm.rcabc.org/images/1/16/Hydrotech_Root_Stop_Tape_TDS.pdf '''here'''] for the Technical Data Sheet PDF)
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*[https://rpm.rcabc.org/images/7/77/Hydrotech_LiteTop_Filter_TDS.pdf '''Litetop<sup>®</sup> Filter''']
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*'''GardenEdge<sup>®</sup>''' (Click [https://rpm.rcabc.org/images/0/0e/Hydrotech_GardenEdge_TDS.pdf '''here'''] for the Technical Data Sheet PDF)
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*[https://rpm.rcabc.org/images/2/27/Hydrotech_Gardendrain_GR10_TDS.pdf '''Gardendrain GR10'''] or [https://rpm.rcabc.org/images/d/d6/Hydrotech_Gardendrain_GR25_TDS.pdf '''Gardendrain GR25''']
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<br>
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*[https://rpm.rcabc.org/images/2/2a/Hydrotech_Root_Stop_TDS.pdf '''Root Stop Standard''']
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;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.
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*[https://rpm.rcabc.org/images/1/16/Hydrotech_Root_Stop_Tape_TDS.pdf '''Root Stop Tape''']
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*[https://rpm.rcabc.org/images/0/0e/Hydrotech_GardenEdge_TDS.pdf '''GardenEdge<sup>®</sup>''']
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:'''Conventionally Insulated Roof Assembly''' by roofing ''Contractor''
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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''.
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: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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<div class="col-md-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.
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: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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Latest revision as of 21:30, 2 December 2024



Division C - Accepted Materials
Group - Vegetated Roof Systems

Hydrotech Extensive Garden Roof® Assembly
by Hydrotech Membrane Corporation

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 material recommended or endorsed by the Guarantor. The preparation of a detailed specification is the responsibility of the Design Authority.

Vegetated Roof System Manufacturer
Hydrotech Membrane Corporation
Accepted for the RoofStar Guarantee Program
October 25, 2024
Accepted for application in
Vegetated Roof Systems
Acceptance Criteria
Refer to the RGC Standard for Vegetated Roofs
System Summary
The Extensive Garden Roof® Assembly is designed for locations that will receive little maintenance or where structural capabilities are a concern. It is not intended for recreational use and is typically chosen for its appearance or to help reduce the "urban heat island" effect and minimize stormwater run-off. Extensive vegetated roofs only require a shallow growing media depth, generally as little as :75 mm to 150 (depending on the region), and therefore add little weight to the roof structure below when compared to a standard ballasted PMR roof (See the link at right to the manufacturer's online resources page for more information)..
Extensive VR System (banner).JPG
Manufacturer online resources
Extensive Garden Roof Assembly
System Type
Extensive
System Depth
101.6 mm (4") to 203.2 mm (7")
Growing Media Depth
76.2 mm (3") to 152.4 mm (6")
Vegetation Profile
varieties of sedums
Suitable climate zones
All BC zones, subject to manufacturer's approval
System Components*
In the usual order, from top to bottom; click on link for Technical Data Sheet (TDS)
Conventionally Insulated Roof Assembly by roofing Contractor
†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.


Back to Accepted Materials

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