The M-TRAY is a ready-grown, fully established sedum, sedum-and-wildflower or wildflower-only green roof loaded into a portable tray, for easier installation of green roofs.
All the growing, filtration and drainage elements are included in the system and the shape of the modules means that each one is simply laid onto the deck and clipped to the next module to create one seamless, fully established green roof.
The M-TRAY modules are pre-grown in Wallbarn’s UK nursery. The empty modules are made from polypropylene and are manufactured with an angled base which creates a large surface area for the roots to establish. The module is lined with a geotextile filter fabric and then filled with the aggregate substrate mix. The exact makeup of the mix depends on what type of plants the growers are propagating in that particular batch.
The major benefit of M-TRAY is flexibility. Getting to the roof is not a disruptive and costly process, which is a huge advantage over loose lay systems. It is simply not possible to loose-lay roll-out systems layer-by-layer on some roof areas due to access restrictions. , M-TRAY can reach the roofs other systems cannot reach.
Future Proofed Access
Access to the roof is future-proofed. If there are problems with the deck beneath or inspection is required, one M-TRAY or section can easily be lifted out without any disruption to the whole deck. With loose lay systems, the whole area may need to be destroyed when accessing the deck.
A major advantage to the M-TRAY system is the “clip on” nature of installation. The fuss, time and skill required to install drainage layers one-by-one, to the correct level and in the correct order is removed as it comes in a complete kit.