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Material or Product
Hydrotech Garden Roof
SourceHydrotech's Garden Roof® Assembly allows the design professional to transform virtually any flat or sloped roof into a landscaped environment. Designed as a lightweight, low profile system, the Garden Roof Assembly can be safely installed on roof and plaza decks not engineered to handle the heavy load requirements of a traditional vegetated roof. The assembly incorporates Hydrotech's Monolithic Membrane 6125® for a water-tight structure. There are four types of Hydrotech Garden Roof Assemblies:
EXTENSIVE GARDEN ROOF
The Extensive Garden Roof is ideally suited for locations that will receive little or no maintenance, or where structural capabilities are a concern. Recommended plants include sedum, herbs, grasses and other vegetation that can withstand harsh growing conditions. The soil mixture, composed primarily of mineral materials mixed with organic medium, can be very shallow (as little as three inches). The entire system is very light, weighing little more than a traditional ballast roof, allowing for safe installation on almost any existing roof.
SLOPED GARDEN ROOF
Sloped Applications can now be accommodated with Hydrotech's Garden Roof Assembly. Design professionals can now expand beyond traditional flat roof applications and put a green roof where it has not been feasible before. In addition, a sloped Garden Roof Assembly can be designed for visibility and viewing from a wider range of locations, not just standing on the roof. Slopes ranging from 2:12 up to 12:12 are possible for extensive and limited intensive applications, provided the appropriate measures are taken to cope with the shear forces and soil retention. Contact Hydrotech for specific requirements.
SHALLOW INTENSIVE (LAWN) GARDEN ROOF
The Shallow-Intensive (Lawn) Garden Roof is still considered a lightweight assembly, but with a slightly deeper soil depth, and designed to support sod lawns and perennials. Irrigation will depend on the plant choices and climate. Generally accessible by adjacent hardscape areas, such as a patio, design professionals now have the opportunity to create beautiful additional usable space on projects.
INTENSIVE GARDEN ROOF
The Intensive Garden Roof incorporates plants that require regular maintenance, such as watering, fertilizing and mowing. The variety of plants possible is numerous, including sod grass lawns, perennial and annual flowers, shrubs, and even small trees. When used in conjunction with Hydrotech's full line of hardscape elements, such as architecturally finished pavers and precast items, the system is ideal for roofs and plazas that will serve as pedestrian recreational areas.
BENEFITS INCLUDE:
* Enhances building's appearance
* Adds space for tenant use and recreation
* One answer to the "Urban Heat Island" problem
* Stormwater management - retain 50%-90% of a typical rain fall on the roof
* Improves building's energy efficiency
* Processes airborne toxins and re-oxygenates the air
* Creates therapeutic and peaceful environments
* Total assembly warranted, from the deck up
The Extensive Garden Roof is ideally suited for locations that will receive little or no maintenance, or where structural capabilities are a concern. Recommended plants include sedum, herbs, grasses and other vegetation that can withstand harsh growing conditions. The soil mixture, composed primarily of mineral materials mixed with organic medium, can be very shallow (as little as three inches). The entire system is very light, weighing little more than a traditional ballast roof, allowing for safe installation on almost any existing roof. An extensive Garden Roof® by Hydrotech uses a select range of hardy plants, making it attractive to look at while requiring little maintenance. Extensive green roofs are not intended for recreational use, but are usually chosen for their appearance or to help reduce the "urban heat island" effect and minimize stormwater run-off. Extensive roofs only require a shallow growing media depth, generally as little as 3” - 4”, and therefore add little weight (typically 18-34 lb/sf wet weight) to the roof structure below. Features: * Are lightweight with only 3” - 4” of growing media * Ideal for inaccessible roofs * Can be used on flat or sloping roofs * Reduce stormwater runoff * Help to mitigate the urban heat island * Require minimum maintenance ©2011 Hydrotech
