MEP® Tray

What is MEP® Tray

The Elmich MEP® Tray (Modular Extensive Planting) system allows quick realisation of extensive green roofs. It is a lightweight and robust planting tray with water storage compartments made from high-strength UV-stabilised polypropylene.

The system includes a support plate with anti-root overflow outlet covers, capillary wicks, geotextile filter, erosion guard, joining and fastening pegs, rodent barriers, base connector and drainage pipes. The water reservoir in each MEP® Tray supports long term plant sustainability with minimal maintenance. The modular tray design allows sustained plant growth and its light weight facilitates easy creation of desired designs and patterns. Each  MEP® Tray including accessories, saturated planting media, plants and stored water weighs less than 30 kg.

The self-contained MEP® Tray may be pre-planted in a nursery prior to installation to achieve instant greening of rooftops. MEP® Tray components are manufactured primarily from recycled plastics, supporting all international Green Building certifications.

  • Retrofit Greenroofs
  • Ideal for light weight structures and small buildings
  • Temporary Greenroofs

Capillary Wicks Capillary Wicks in the Support Plate convey water to the geotextile filter and planting media. This also discourages root incursion into the reservoir.

Placement of Planting Media The MEP® Tray has a fitted Support Plate for placement of a geotextile filter. Its small apertures stop excess planting media getting into the reservoir.

Erosion Control A Confinement Grid minimises media spillage within the MEP® Tray. It is attached to the tray to prevent it from being dislodged.

Securing of Trays Adjoining MEP® Trays are secured by fastening pegs. Each tray may be bolted to the substrate via the Base Connector for additional security if required.

Water Seepage Ridges at the edge and around the fastening holes of the MEP® Tray prevent water seepage between adjoining trays keeping the roof beneath dry.

Non-Intrusive Base The MEP® Tray has a smooth base without any protrusions allowing it to be placed directly onto the waterproofing membrane without damaging it.

Independent Drainage The MEP® Tray utilizes an independent drainage system pre-installed beneath the trays. Polyurethane seals used at the joints ensure watertightness.

Fast Installation & Removal MEP® Tray units are placed onto a pre-installed drainage network. Trays are easily added or removed without affecting the drainage network.

Rodent Barriers Rodent Barriers at each corners of the MEP® Tray prevent rodents infesting the space between trays

  • Established green roof upon installation
  • Modular, lightweight and portable
  • Integrated capillary wicks
  • Closed drainage system
  • Watertight pipe and connector joints
  • Non-clogging reservoir and drainage channels
  • Spill-proof planting media containment
  • Option to secure tray against uplift
Material PP
Dimensions 500 mm x 500 mm x 150 mm
Planting media height 75 mm
Reservoir capacity   35.2 l/m2




<10 kg/m2

~120 kg/m2