Riverlight Vauxhall: balcony decking made easy

Riverlight Development, Nine Elms


Adjustable supports make light work of  Riverlight development.

Adjustable pedestals

Whether it’s a new build or a refurb, we can help you with your balcony, rooftop and terrace project.

Our knowledgeable service team is on hand to answer your questions:


020 8916 2222



Online chat


General Benefits of Green Roofs – Water Runoff Reduction

close up of modular green roof installation

With a climate that is seemingly producing more spells of wet weather, green roofs are proven to play a key role in helping to significantly reduce the surface runoff volumes and rates of rainfall leaving roofs.

As a proven control mechanism in the SUDS (Sustainable Drainage Systems), green roofs can play an important role in helping to reduce the potential for flash floods as a consequence of intense rainfall events.

Green Roof Installation UK

Rainfall Rising Globally

With rainfall amounts on the rise globally, it’s a crucial time to examine how cities can retrofit their existing building infrastructure to alleviate flood damage and deal with stormwater in a more sustainable manner.

Green infrastructure technologies, such as permeable pavements, bioswales, cisterns and green roofs, are now commonly recommended to confront extreme weather events.

Green roofs for stormwater management

Green roofs are a green infrastructure (GI) option that can be applied to virtually any rooftop given weight load capacity. The benefits of green roofs extend far beyond their obvious aesthetic appeal.

A study done by University of Toronto civil engineer Jenny Hill and co-researchers at the school’s Green Roof Innovation Testing Lab (GRIT Lab) showed that green roofs have the capacity to capture an average of 70 per cent of rainfall over a given time, relieving underground storm-water systems and releasing the rainwater back into the atmosphere.

For more on this investigation in The Conversation, please click here.

Introducing The M-Tray®

Wallbarn presents the new M-Tray® which has been further improved to make sedum roofs easier to install with less disruption to both the plants and the structure. M-Tray® is also designed to give a more seamless, verdant finish and an instant green roof.

Wallbarn is at the forefront of developments in the green roofing sector and has always provided products that combine top-quality ingredients with user-friendly, hassle-free maintenance. The purpose of M-Tray® is to enhance rooftop living

Wallbarn can advise and assist on all aspects of scoping, installing and maintaining your green roof project.

Just pick up the phone, ask a question using the live chat facility on this site or send us an email at info@wallbarn.com and we’ll get back to you next working day at the latest.

Currently Browsing: General Benefits of Green Roofs – Water Runoff Reduction

The Wallbarn M-Tray® Sedum Wildflower Green Roof Module

Wildflower Green Roofs

The advances made in the design of the new M-Tray® model have created a number of key advantages including:

  • deeper cavities for extra root growth
  • optimum drainage leading to stronger plant growth
  • more established vegetation at point of installation
  • more efficient transport and packaging
  • exactly 4 units per m2
  • easier to carry trays with smooth handles

  • a closer connection between trays for more seamless plant growth
  • no sharp edges, less risk to the membrane
  • nothing spills out, less mess
  • made from recycled plastic with a recycled substrate
  • less packaging, less waste
  • UK designed and manufactured in the UK

M-Tray® With Wildflower

As well as the sedum trays, Wallbarn plants up a wildflower mix into the M-Tray®. A varied mix of at least six different native species has been selected. All these flowers and herbs are low growing, hardy species, chosen to be pollinators for butterflies and bees.

Why Modular?

The main advantages of modular over roll-out green roof systems include convenience and speed of installation, futureproofing, and the delivery of instant results.

All the elements required for a successful green roof have been measured and installed into the M-Tray® modules at the nursery.

Users can feel confident that the plants, growing medium and filtration components are suitable and compatible, and at the correct level to give strong, healthy growth over the long term.

The trays are grown for a period of 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).

Mess and disruption are big issues with roll-out systems.

Moving bags of aggregate-based substrate onto rooftops is fraught with risk – the aggregate goes everywhere and as it is so granular, it can damage waterproofing membranes very easily. Sedum blankets are also supplied rolled up, so the plants get damaged during the transport and installation process.

This is not the case with the M-Tray® modules.

Enhanced Accessibility

Another key benefit is accessibility. As each module is 500 x 500mm, one M-Tray® can be carried by one operative. For areas which are very difficult to access, such as single-storey extensions, domestic projects and other completed structures, roll-out is simply not possible. M-Tray® can be hand-balled into even the most awkward areas, even carried through a window (pictured) if necessary. They are the perfect retro-fit product.

Speed is also a major factor. It has been proven that green roofs constructed using Wallbarn M-Tray® are installed much faster than in traditional roll-out methods.

It is also an instant green roof. Since the sedum is less shocked by the installation process, as soon as the trays are connected together the whole area is filled with well-established plants. They will start to grow straight away, forming a seamless layer of vegetation much faster.

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 disruption to the whole roof.

The modular green roof panels are packaged and delivered in the most convenient manner.

By being palletised, the plants can get to the roof quickly and without the risk of damage.

Contact Us

For more information, please visit the dedicated area of our website via the following link – https://www.wallbarn.com/products/m-tray/

If you have any questions or want to make an enquiry, please call 0208 916 2222 / sales@wallbarn.com

Currently Browsing: The Wallbarn M-Tray® Sedum Wildflower Green Roof Module

The UK’s Largest Built Environment Event Is Coming

UK Construction Week Logo 2019

UK Construction Week (UKCW) is FREE to attend and consists of multiple sections: Build, Building Tech, Civils, Energy & HVAC, Surface & Materials and Timber running from 8-10 October and newly launched Concrete Expo (8-9 Oct only) and Grand Designs Live (9-10 Oct only).

UK Construction Week (UKCW) brings together all stakeholders within the built environment across design, build and supply; promoting innovation, projects, learning and networking.

By exhibiting at UKCW, you will have access to 35,000 industry professionals as well as tailored marketing support to your company’s objectives and needs. You can exhibit in different sections including Build, Building Tech, Civils, Energy & HVAC, Surface & Materials and Timber.

All About The Show

In its 5th year, UK Construction Week (UKCW) takes place on 8-10 October and brings together all stakeholders within the built environment across design, build and supply; promoting innovation, projects, learning and networking.

As the largest event dedicated to knowledge sharing, best practice, problem-solving and product sourcing, it is the environment for the whole industry to discover, develop, discuss and do business; providing all the answers for how we build for our future. UKCW is FREE to attend and welcomes 650+ exhibitors, 35,000 visitors, over 300 expert speaker line-up and over 150 hours of CPD content.

With a single registration, visitors can enter the co-located sections including Build, Building Tech, Civils, Energy & HVAC, Surface & Materials, Timber and Grand Designs Live (free entry is for 9-10 October only) and newly launched Concrete Expo (8-9 October only).

To register for your FREE ticket, please click here.


Green Roof: now is the time

M-Tray - Project - Whitstable_000


Now is the ideal time to install a green roof

And there is no easier way than with our M-Tray® modules

Check out this roof extension

M-Tray® green roof

Can we help you with a green roof project?

Our team is ready to answer your questions:


020 8916 2222



Online chat


We Are Exhibiting At NFRC Contractors Day

Contractors Day 2019 Logo

The construction landscape is changing faster than ever and these changes are having an impact on how contractors work on-site and operate as business owners.

With this in mind, the National Federation of Roofing Contractors (NFRC) and Total Contractor magazine have joined forces to launch an exciting, new one-day event for contractors operating in the roofing, cladding and insulation sectors.

A Great Opportunity

The event is a great opportunity for roofing and cladding contractors to hear the latest industry updates and see the leading suppliers and manufacturers of materials and products for their market.

Contractor’s Day will be held on 2nd October 2019 at Old Trafford, the iconic home of Manchester United.

The event also provides a highly targeted platform for manufacturers and suppliers to raise their profile to roof and cladding contractors working in both the domestic and commercial project sectors.

Comprehensive Visitor Marketing

The NFRC and Total Contractor magazine offer a comprehensive visitor marketing campaign to include:

  • Personal invites to the 1,100+ NFRC Contractor members
  • Advertising in Total Contractor’s 11,000 circulations, including distribution through all SIG Roofing Merchants and many independents
  • Promotion through the NFRC Roofing Times
  • Promotion through Total Contractor Now E-Newsletter
  • Presence on both NFRC’s and Total Contractor’s websites
  • Promotion through Industry Partners and Professional Bodies
  • Social and online media activity

The event audience will include

  • Slating and Tiling
  • Heritage
  • Green Roofing
  • Sheeting & Cladding/Rainscreen
  • Fully Supported Metal
  • Lead Roofing
  • Single Ply
  • Liquid Applied Roofing & Waterproofing and Hot Melt
  • Mastic Asphalt
  • RBM
  • Insulation
  • Rooflights
  • Lead
  • Rainwater Systems
  • Solar PV

To book your FREE tickets, please click here, we’d love to see you there.


Come and see us at Contractor’s Day 2019

Contractors Day 2019 Logo




On 2nd October the National Federation of Roofing Contractors (NFRC) and Total Contractor magazine join forces for a new one-day event for contractors operating in the roofing, cladding and insulation sectors.

This is a great opportunity to hear the latest industry updates and to meet leading suppliers and manufacturers.

Wallbarn will be among them, exhibiting from our ever-evolving range of specialist products.

Come and see us on Stand 22 at Old Trafford FC, the home of Manchester United!

Come & See Us

Want to fix a time now to talk to a member of our team on the day? 


020 8916 2222



Online chat