Although the modular system has the same benefits as the traditional system, the entire garden is self-contained within a complete module.
Modular green roof systems - garden roofs - are relatively new to the roofing arena, appearing within the past five years. Although the modular system has the same benefits as the traditional system, the entire garden is self-contained within a complete module. Filling, planting and maintenance take place on the ground in a nursery, then, the modules are brought to the roof via elevator, hoist or crane. A modular system weighs between 10 and 30 pounds per square foot, depending on depth of the growth media and whether supplemental irrigation is required.