Difference between revisions of "Materials:Hydrotech Semi-intensive Garden Roof Assembly"

Latest revision as of 21:30, 2 December 2024

Division C - Accepted Materials
Group - Vegetated Roof Systems

Hydrotech Semi-intensive 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 Semi-Intensive Garden Roof^® Assembly is considered a lightweight assembly, but with a slightly deeper soil depth, and is designed to support sod lawns as well as perennials. Lawns have unique needs due to the foot traffic they experience. Designers have the ability to create large lawn areas on rooftops using a Garden Roof Semi-Intensive^® Assembly (See the link at right to the manufacturer's online resources page for more information)..

Manufacturer online resources: Semi-intensive Garden Roof Assembly
System Type: Semi-Intensive
System Depth: 203.2 mm (8") to 355.6 mm (14")
Growing Media Depth: 152.4 mm (6") to 304.8 mm (12")
Vegetation Profile: as specified by the Design Authority/Green Roof Design Professional (See Conditions and Limitations below)
Suitable climate zones: conditional on the specified vegetation profile (refer to the Design Authority/Green Roof Design Professional)
System Components^*: In the usual order, from top to bottom; click on link for Technical Data Sheet (TDS)

Semi-Intensive Litetop^® Growing Media Litetop^® Aggregate only for Gardendrain GR30 Gardendrain GR25 or Gardendrain GR30 XPS Insulation by roofing Contractor (Refer to the RGC Standard for Vegetated Roofs) Root Stop Standard or Root Stop HD Root Stop Tape Waterproofing Roof Assembly (membrane) by roofing Contractor GardenEdge^®

^†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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 ;'''Vegetated Roof System Manufacturer''': [http://en.hydrotechmembrane.ca/  '''Hydrotech Membrane Corporation''']
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 ;Accepted for application in: Vegetated Roof Systems
 ;Acceptance Criteria: Refer to the [[VRA Standard | RGC Standard for Vegetated Roofs]]
-;System Summary: The Semi-Intensive Garden Roof<sup>®</sup> Assembly is considered a lightweight assembly, but with a slightly deeper soil depth, and is designed to support sod lawns as well as perennials.<br><br>Lawns have unique needs due to the foot traffic they experience. Designers have the ability to create large lawn areas on rooftops using a Garden Roof Semi-Intensive<sup>®</sup> Assembly.<br><br>
+;System Summary: The Semi-Intensive Garden Roof<sup>®</sup> Assembly is considered a lightweight assembly, but with a slightly deeper soil depth, and is designed to support sod lawns as well as perennials.  Lawns have unique needs due to the foot traffic they experience. Designers have the ability to create large lawn areas on rooftops using a Garden Roof Semi-Intensive<sup>®</sup> Assembly (See the link at right to the manufacturer's online resources page for more information)..
 <div style="text-align: left;">
-[[File:Extensive VR System (sedum tile).jpg| left | 450 px| link=]]
+[[File:Extensive VR System (banner).JPG| left | class=img-responsive |  link=]]
 </div>
 </div>
-<div class="col-md-4">
+<div class="col-md-6">
-;:
-:Generally accessible by adjacent hardscape areas, such as a patio, design professionals now have the opportunity to create beautiful additional usable space on projects.<br><br>The assembly incorporates a LiteTop® growing media that provides a firm structure for pedestrian areas while providing proper aeration for good root growth. Lawns require more water for proper establishment and long term growth. Hydrotech strongly recommends that a permanent irrigation be included in the assembly.<br><br>'''Features of the Garden Semi-Intensive<sup>®</sup> Assembly''':
-:*Depth of growing media between 200mm and 300mm
-:*Increase of usable space
-:*Integrated hardscape options
-:*Regular irrigation
-:*Regular maintenance<br><br>
-:'''Typical Application''':<br><br>A Garden Roof® Assembly can expand the livable space of a building through the integration of hardscaped areas with lush landscaped areas of lawn and other vegetation. The maintenance required for these spaces is similar to the care that would be required to maintain this space at grade.<br><br>For more about maintenance, see Part 11 in the [[VRA Standard | RGC Standard for Vegetated Roofs]]<br><br>(Adapted from the manufacturer's summary)
-</div>
-<div class="col-md-4">
 ;:
 ;Manufacturer online resources: [https://en.hydrotechmembrane.ca/assemblies/garden-roof-assembly/semi-intensive Semi-intensive Garden Roof Assembly]
+;System Type: Semi-Intensive
 ;System Depth: 203.2 mm (8") to 355.6 mm (14")
 ;Growing Media Depth: 152.4 mm (6") to 304.8 mm (12")
 ;Vegetation Profile: as specified by the ''Design Authority''/''Green Roof Design Professional'' (See '''Conditions and Limitations''' below)
 ;Suitable climate zones: conditional on the specified vegetation profile (refer to the ''Design Authority''/''Green Roof Design Professional'')
-;System Components:
+;System Components<sup>*</sup>: In the usual order, from top to bottom; click on link for Technical Data Sheet (TDS)
-*'''Semi-intensive 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)
+:{| class="wikitable"
-*'''Litetop<sup>®</sup> Filter''' (Click [https://rpm.rcabc.org/images/7/77/Hydrotech_LiteTop_Filter_TDS.pdf '''here'''] for the Technical Data Sheet PDF)
+|-
-*'''Litetop<sup>®</sup> Aggregate''' only for Gardendrain GR30 (Click [https://rpm.rcabc.org/images/c/cb/Hydrotech_LiteTop_Aggregate_TDS.pdf '''here'''] for the Technical Data Sheet PDF)
+|
-*'''Gardendrain GR25''' or '''Gardendrain GR30''' (Click [https://rpm.rcabc.org/images/d/d6/Hydrotech_Gardendrain_GR25_TDS.pdf'''here'''] and [https://rpm.rcabc.org/images/e/e9/Hydrotech_Gardendrain_GR30_TDS.pdf '''here'''] for the Technical Data Sheet PDFs)
+*[https://rpm.rcabc.org/images/c/c1/Hydrotech_LiteTop_Growing_Media_TDS.pdf '''Semi-Intensive Litetop<sup>®</sup> Growing Media''']
-*'''Root Stop Standard''' or '''Root Stop HD''' (Click [https://rpm.rcabc.org/images/2/2a/Hydrotech_Root_Stop_TDS.pdf '''here'''] or [https://rpm.rcabc.org/images/0/04/Hydrotech_Root_Stop_HD_TDS.pdf '''here'''] for the Technical Data Sheet PDFs)
+*[https://rpm.rcabc.org/images/c/cb/Hydrotech_LiteTop_Aggregate_TDS.pdf '''Litetop<sup>®</sup> Aggregate'''] only for Gardendrain GR30
-*'''Root Stop Tape''' (Click [https://rpm.rcabc.org/images/1/16/Hydrotech_Root_Stop_Tape_TDS.pdf '''here'''] for the Technical Data Sheet PDF)
+*[https://rpm.rcabc.org/images/d/d6/Hydrotech_Gardendrain_GR25_TDS.pdf '''Gardendrain GR25'''] or [https://rpm.rcabc.org/images/e/e9/Hydrotech_Gardendrain_GR30_TDS.pdf '''Gardendrain GR30''']
-*'''GardenEdge<sup>®</sup>''' (Click [https://rpm.rcabc.org/images/0/0e/Hydrotech_GardenEdge_TDS.pdf '''here'''] for the Technical Data Sheet PDF)
+:'''XPS Insulation''' by roofing ''Contractor'' (Refer to the [[VRA Standard | RGC Standard for Vegetated Roofs]])
-<br>
+*[https://rpm.rcabc.org/images/2/2a/Hydrotech_Root_Stop_TDS.pdf '''Root Stop Standard'''] or [https://rpm.rcabc.org/images/0/04/Hydrotech_Root_Stop_HD_TDS.pdf  '''Root Stop HD''']
-;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.
+*[https://rpm.rcabc.org/images/1/16/Hydrotech_Root_Stop_Tape_TDS.pdf '''Root Stop Tape''']
+:'''Waterproofing Roof Assembly''' (membrane) by roofing ''Contractor''
+*[https://rpm.rcabc.org/images/0/0e/Hydrotech_GardenEdge_TDS.pdf '''GardenEdge<sup>®</sup>''']
+|}
+</div>
+<div class="col-md-12">
+<hr>
+<div class="col-md-6">
+;<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.].
+</div>
+<div class="col-md-6">
+;<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.
 </div>
 </div>