Difference between revisions of "Materials:Hydrotech Extensive Garden Roof Assembly"
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> | + | <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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;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]] | ||
| + | ;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 | ||
<div style="text-align: left;"> | <div style="text-align: left;"> | ||
| − | [[File:Extensive VR System (sedum tile).jpg| | + | [[File:Extensive VR System (sedum tile).jpg| left | 450 px| link=]] |
</div> | </div> | ||
</div> | </div> | ||
| − | <div class="col-md- | + | <div class="col-md-4"> |
| + | ;: | ||
| + | :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>'''Features of the Extensive Garden Roof Assembly''': | ||
| + | ::*Depth of growing media between 75 mm and 150 mm | ||
| + | ::*Reduction and delay of stormwater runoff | ||
| + | ::*Attenuation of the urban heat island effect | ||
| + | ::*Minimal maintenance required | ||
| + | ::*Use on flat or sloping roofs<br> | ||
| + | :Vegetation options - Plugs, Sedum cuttings, InstaGreen® sedum carpet (See '''Conditions and Limitations''' below)<br><br>'''Typical Application''':<br><br> | ||
| + | :An Extensive Garden Roof<sup>®</sup> Assembly can be applied to flat roofs and sloping roofs with a pitch of up to 12:12 (45°), provided the appropriate measures are taken to cope with the shear forces and soil retention. ''Extensive vegetated roofs'' are typically lightweight and can be installed over a variety of structures including metal roof decks (Adapted from the manufacturer's summary). | ||
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| + | <div class="col-md-4"> | ||
;: | ;: | ||
| − | ; | + | ;Manufacturer online resources: [https://en.hydrotechmembrane.ca/assemblies/garden-roof-assembly/extensive Extensive Garden Roof Assembly] |
;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") | ||
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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. | ;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. | ||
</div> | </div> | ||
</div> | </div> | ||
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| + | <br> | ||
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Latest revision as of 18:55, 31 October 2024
Division C - Accepted Materials
Group - Vegetated Roof Systems
Hydrotech Extensive Garden Roof® Assembly
by Hydrotech Membrane Corporation
| Material Acceptance and Product Details
|
 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. 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® Assemblies. Features of the Extensive Garden Roof Assembly:
Typical Application:
|