Elmich supplied their MEP trays at a recent project site in Eastern Sydney to create a green roof.

An important component in the creation of a green roof, the Elmich Modular Extensive Planting Tray or MEP tray is essentially a shallow planter designed specifically for extensive planting over rooftops. Measuring 500x500mm, the trays with integrated water storage and drainage are designed to reduce maintenance by ensuring good water retention and drainage, and provide an environment for the plants to thrive.

The Eastern Sydney project required 500 MEP trays to cover 126 square metres of exposed rooftop. About 4500 plants, mainly succulents and grasses that had the capacity to tolerate the exposed conditions, were planted on site. With each MEP tray storing up to 7 litres, all the plants were being sustained by 3500 litres of stored rainwater, dramatically reducing reliance on irrigation. Excess rainwater is drained via a network of drainage pipes.

The green roof is expected to soften the landscape as the plants grow, improving the view from the top.
Green roofs not only limit the impact of climate change, underlining the valuable role they play in sustainable design, but also reduce heat transmission from the rooftop to the habitable space below. Additionally, green roof gardens lower ambient temperature, mitigate urban heat islands, reduce run off and improve air quality and aesthetics.

Image: Installation and photograph by 3 Owls Landscapes