Green Roof System
Specifications
System Specifications
   

SYSTEM SPECIFICATIONS
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ELEMENT
DESCRIPTION
Module size
Standard – 2 ft. x 4 ft.
2 ft. x 2 ft. x 2.5 in.
2 ft. x 2 ft. x 4 in.
Specialty modules vary in dimensions
Depth of modules (three depths)
2.5 in., 4 in., and 8 in. (nominal)
Weight of planted modules
(fully saturated)

2 in. depth – 11-13 pounds per sq. ft. (wet)
4 in. depth – 18-22 pounds per sq. ft. (wet)
8 in. depth – 35+ pounds per sq. ft. (wet)

Module material
60% post-industrial recycled HDPE
– 150 mil. 2.5 and 4 in.
– 175 mil. 8 in.
Module drainage clearance above roof
0.5 in.
Color of modules
Black
Paver size
Length – 2 ft., width – 2 ft., depth – 1.75 in.
Paver material
100% recycled rubber
Paver colors
Forest green, charcoal, brick red
Paver weight
7.5 lbs./sq. ft.
Drainage/root resistance medium
Spunbonded polypropylene geotextile
Growth media
Proprietary mixture consisting of organic and inorganic material.
Acceptable underlying materials
Roof membrane or any other roofing materials. Modules can be placed directly on membrane or other roof materials.
Drip irrigation system
Black polystyrene tubing. Typically not required for 4 in. depth modules. May be required for 8 in. depth modules, depending on climate and plant selection.
Water feature®
Mule-Hide® 60 mil. membrane
Water feature weight
41.6 lb./sq. ft. for 8 in. water feature
Edge treatments Wood, recycled composite wood, metal, or other specialty materials (in various colors and designs)
Plants Perennials, grasses, or shrubs specifically selected for climate, hardiness zone, color, and size.

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