For strong, healthy, plant life to thrive on a rooftop, proper drainage and optimal planting capacity is a must. The 4” deep M-Tray® by Wallbarn plays a key role in this aspect of Archatrak’s extensive green roof system. Made from recycled, fire-resistant polypropylene, these easy-to-install planter trays snap together seamlessly to support expansive green space on any elevated deck.
Drainage holes strategically spaced along the bottom of the M-Tray® allow vegetation to absorb rainfall, enhance attenuation and slow discharge. The tapered sides of the container ensure optimal water retention around the edges which avoids yellowing at the borders and evens out the growth-rate of the plantings.
Sized at 19 11/16” x 19 11/16” these trays can be easily carried, positioned, and repositioned by installers. Each tray features 4 grips on the underside for easy handling and each corner at the bottom of the tray is rounded to help eliminate the risk of puncturing any membrane laid below.
Connection brackets supplied with the M-Trays® are made to tighten gaps and hold everything in place. Any remaining space between the trays will be covered in no time once the plants fill in. After installation, maintenance with this modular green tray system is simple. Just remove any individual M-Tray® to access to the subsurface below without disrupting the rest of the deck structure.
Type Of Construction: Permanent
Width / Breadth: 19 11/16” x 19 11/16”
Shape Of Walls / Sides: Tapered / Angled
Material: Recycled Polypropylene
Thickness Of Material: 3mm
Internal Ridge Height / Reservoir Height: ¾”
Number Of Internal Drainage Reservoirs: 25
Drainage Holes Per Unit: 8
Distance Between Trays At Base: ¾”
Dry Weight (Empty): 2.42 lbs
Weight Planted & Saturated: 55.11 lbs (200 psf excluding snow load)
Connectors Per Unit: 4
Number Of Grips On Underside: 4
Detail Of Corners / Edges: Smooth / Reinforced
Fire Classification: B ROOF t(4) tested in accordance with CEN/TS 1187 Test 4.