Wallbarn has developed a modular system which makes installing a green roof incredibly easy with far less disruption to both plants, structure and inhabitants than other methods.
The modules simply click together to create a seamless, instant green roof.

All the elements required for a successful green roof have been designed into the M-Tray® modules at our UK nursery to ensure strong, healthy long- lasting vegetation.

The trays are grown on site for at least 6 months and all will have been through at least one Spring growing season; so the plants are well established, healthy and strong, and fully integrated into the substrate (unlike sedum blankets, which are not).

IMPROVING THE ENVIRONMENT
• Aesthetically pleasing • Provides valuable habitat • Attracts insects, invertebrates and birdlife • Absorbs CO2, pollution and dust particles • Helps combat the Urban Heat Island Effect • Part of SUDs performance

PROTECTING THE WATERPROOFING
MEMBRANE
• Extends roof membrane's life by protecting it
from pests • Protects roof membrane from UV and heat degradation • Provides an attractive alternative to pebbles or concrete slabs for holding down insulation boards or loose laid waterproof systems

The current module design is the fourth generation of
our green roof system and has the following benefits:
• Each module measures 500 x 500 x 100mm • 4 x units make up exactly 1 sqm making estimating far easier • 100mm buildup gives sedum more room to develop healthy root growth • Carefully positioned drainage holes
• Allow sedum plants to absorb more rainfall, increasing attenuation and delaying discharge into outlets
• Stronger plant growth at the edges creates a more seamless layer of vegetation when the modules are connected • Smooth edges • The underside has a smooth surface to prevent abrasion with the sub-deck
• Inset ridges at the discharge points maintain free drainage without clogging • The corners of the modules are rounded and smooth, so no sharp edges are present
• Hand grips on the underside are positioned to enable installers to carry each module easily • Tight connection
• The connecting brackets ensure minimum gap between each module

M-Tray® DimensionsSize: 500mm x 500mm x 100mmTrays per m2: 4
(The Sedum M-Tray® modules will arrive pre-grown on a pallet, weighing approximately 25kgs each i.e. 100kgs per m2).
N.B. it is essential that the pallets are unpacked immediately after delivery. Sedum will sweat whilst packed and trays MUST be unpacked within 24 hours.