Native Wildflower Green Roof

An image of a wildflower green roof

As well as the sedum trays, Wallbarn plants up a wildflower mix into the M-Tray®. We have developed a new native wildflower green roof which was planted at the end of last year and will be ready for dispatch and installation this summer.

Wildflower green roofs contain a mixture of native flower species to attract native insects and birds.

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.

The ideal way to introduce wildflower seed mix

In order to get more wildflowers into the system, Wallbarn has developed wildflower green roof trays with a wildflower seed mix at the point of harvesting and packing.

This seed mix is designed to attract bees and butterflies, so will increase the biodiversity and environmental impact of the roof.

Wildflower green roofs still require maintenance

There are certain things to consider: these flowers are chiefly annuals, so will die off at the end of the growing season.

Therefore, in order to have flowers the next year, the roof will need to be reseeded. Users can harvest the seeds in this season’s crop to sow the next year, or purchase another seed mix (available from Wallbarn) the next spring.

Also, these wildflowers can grow very high, up to 80cm and will have much more fibrous structures than sedum (which is succulent) so the dead stalks and other vegetation will not rot but remain on the roof after the flowers have died off.

This makes the roof look unsightly and is also a potential fire risk, so these dead stalks should be removed every autumn. Clients should bear this additional maintenance in mind when choosing wildflower – if the roof is inaccessible this can prove a major problem. The additional costs of more maintenance should also be factored.

Find Out How Green Roofs Can Transform Almost Any Lost Space

A close-up of an M-Tray installation in Whitstable

Whilst the name ‘green roofs’ will undoubtedly make many people look to the skies as they automatically think of the building rooftops, the versatility of the M-Tray® ensures that they are suitable for a wide variety of open and lost spaces, regardless of size, with some projects taking place much closer to the ground!

One of our previous projects resulted from a request from a residential customer who wanted to ensure that a recently installed garden storage unit on the back of his home was more attractive.

By giving it a green roof. The M-Tray®, being modular in shape and incredibly easy to install, lent itself perfectly to the job.

Providing Easy Access

The green roof components needed to be walked through the house to access the garden. Traditional roll-out green roof systems, with their bags of aggregate-based substrate and sedum blankets spilling compost and plant matter, are extremely messy to transport and install.

The M-Tray® is self-contained within the walls of the plastic tray and comes with fully established, sustainable vegetation.

Taking a closer look at the M-Tray®

Our M-Tray® modular green roofing system 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.

What makes the M-Tray® green roof unique?

  • Mature, established vegetation
  • Click-together trays create a seamless connection
  • Easy to transport and install
  • Specially-mixed substrate for the longevity of plant life
  • 100mm deep cavities for healthy roots
  • Optimum drainage means stronger plants
  • No sharp edges or mess meaning minimum disruption to plants, deck structure and inhabitants!

For more information, please visit the dedicated area of our website by clicking here.

Contact Us

Wallbarn’s friendly and helpful team are here to answer any of your questions. Please give us a call on Tel. No. 0208 916 2222, send us an e-mail or use our ‘live chat’ option and we will be happy to help in any way that we can.


8 Reasons Why You Should Choose a Sedum Green Roof System From Wallbarn

A close-up of an M-Tray installation in Whitstable

A close up image of the sedum used in the M-Tray

With continuing research and development, a sedum green roof system is now more attractive, durable and cost-effective than ever.

Introducing the M-Tray® modular green roofing system

The M-Tray® is a ready-grown, fully-established sedum or wildflower green roof modular solution offering a variety of unique benefits, including:

  • Our M-Tray® green roof system consists of specially-designed modular trays containing superior, engineered substrate and fully established flowering sedum
  • Easy-to-carry trays which click together to form a seamless green roof
  • Fully established sedum plants nurtured from seed at our own UK nurseries

Why Choose a Sedum Green Roof System?

Our sedum green roof system provides an environmentally-friendly, sustainable living wall system for design and construction professionals.  Our high-quality team of technicians can achieve environmentally-friendly, sustainable solutions guaranteed to deliver cost-effective benefits.

Not only do these systems offer design solutions for awkward urban spaces, but they also add beautiful flora and fauna, colour and biodiversity to buildings and city centres.

Our systems combine great design scope with key ecological and performance benefits:

  1. Creates habitat for birds and insects, increasing biodiversity
  2. Acts as an effective soundproofing barrier
  3. Helps regulate the building temperature
  4. Air purification – plants are efficient filters of pollution
  5. Easy installation
  6. Ideal for retrofitting or refurbishment projects.
  7. Delivers instant greening of a roof with sedums and other species able to flourish in our climate.
  8. Cost-effective solution.

Huge Variety of Options

The horticultural options are vast. Sedum, exotic grasses, ferns, ivy and herbs are the most common plants used. We aim to get a fair mixture of vegetation to ensure a diverse mix of textures, colours and flowers across the year.

We design the planting so that shade-loving plants are respected, nothing gets overrun by aggressive species, those requiring higher or lower amounts of water and additional feed are planted in the correct place, and an overall pattern is attractive, both close up and from a wider viewpoint.

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.

Bespoke options are available.

For more on the M-Tray®, please click here.


Do Green Roofs Offer Noise Reduction Qualities?

M Tray installation through a window|The M Tray Modular Green Roof

A close-up of an M-Tray installation in Whitstable

Green roofs have increased dramatically in popularity in recent times, thanks in large part due to the number of ecological and economic advantages they offer.

These include:

  • Increased thermal insulation
  • Floodwater management
  • Improved air quality
  • Enhanced biodiversity

However, did you know that green roofs can also be effective at reducing noise?

Noise reduction qualities

Green roofs have important acoustic benefits as well. A study has shown that:

“Because the typical substrates used for green roofs are (highly) porous and thus allow sound waves to enter the growing mediums. Because of the large number of interactions between sound waves and substrate particles, attenuation occurs. As a result, less noise will reach the back façade or the roof apartment compared to the situation with a non-vegetated roof that is most often made of highly reflective material (e.g. concrete).”

Please click here for more on this study.

Taking a closer look

Zaloa Azkorra, an agricultural engineer of the UPV/EHU-University of the Basque Country, is currently conducting some fascinating in-depth research at the University School of Mining and Public Works Engineering into the benefits provided by green walls.

The researcher has concluded that walls comprising plants offer great potential for absorbing noise and could be used as acoustic insulation.

Temperature & acoustic benefits

The researcher is proposing that green walls be used in buildings, inside and outside, as they can improve the temperature and, what is more, they can achieve acoustic improvements. Furthermore, “they are attractive and cool,” said Azkorra. But she also admitted at the same time that having such systems is costly and that, what is more, the systems need to be improved. As Azkorra pointed out, “apart from having plants on the walls, they have to be maintained and that is quite expensive”. So right now she sees no alternative but to fit them in special buildings.

Now that the plant modules have been cultivated, she has begun to carry out thermal studies on them to study what benefits they can bring from the temperature perspective.

For more on this story, please visit –

Green Roofing Benefits

The huge range of benefits offered by green roofing systems is something that the team at Wallbarn wholeheartedly endorse.

To view many of the benefits available, please take a moment to visit the dedicated ‘green roofing’ section on our website by clicking on the following link –

For more on our pre-grown sedum green roof product, supplied in easy-to-handle plastic tray units, please check out the video below.

Slip Resistant Decking – Perfect For Poolside Installations

Enhancing Your Outdoor Space With Hardwood Decking

One of the primary concerns relating to the installation of a new outdoor decking system relates to safety, especially when the completed deck is located near to a swimming pool, jacuzzi or near the beach and therefore likely to come into regular contact with water.

Creating a Slip Resistant Finish

iDecking have spent many years perfecting an innovative, environmentally-friendly, non-splinter timber decking solution offering all the good looks of the real thing but without the flaw of other products. 

Unlike many other traditional decking materials, the systems which have been developed by iDecking, completely waterproof your deck or roof deck area with an attractive, durable and slip-resistant finish.

Offering Further Evidence

To help offer further evidence relating to the slip resistance of the iDecking boards, we have carried out some slip tests on our decking products recently. The tests are carried out according to BS7976 -2 Pendulum Slip Test.

The test is carried out via a pendulum testing machine in at least 2 directions, both in a dry state and in a wet state. The results are as follows:

Selecting The Correct Products

It really is not possible to over-emphasise the importance of choosing a decking product which offers the longest lasting and safest solution for the particular project. Designers should always be aware of the uses on schemes which they are specifying and therefore select the correct decking products accordingly.

With a number of cheaper, inferior products on the market, it is essential that designers and installers choose products which are specially designed and selected to fit the purpose of the project. Thankfully, the range of iDecking products ticks all of the right boxes.

Composite decking is widely accepted to be one of the most effective decking products available due to the fact that it boasts a number of qualities highlighted by a longer lifespan than traditional wood.

Introducing Eco-Friendly Composite Decking

Whilst many of the old composites were made from sawdust mixed with cheap polymers, so they absorbed a lot of moisture. They were also susceptible to attack from insects, mildew, turned green and very slippery over time and were also prone to rotting due to the high wood fibre content.

However, the introduction of the iDecking Revolution products offers a new generation of materials which have been developed to look and perform much better in the long term.

Developed by iDecking Revolution, DURO is a brand new material which has been developed with the following goals in mind:

  • Fast and easy installation using no screws
  • 100% Eco-Friendly
  • Ultra-Low Maintenance
  • Custom Colours

Exceptional Durability

These new systems offer a new mindset for artificial decking. They will not fade significantly, absorb hardly any moisture and do not swell or split. In addition to this, any scratches or blemishes can also be sanded down to almost French-polish the scratches out, since it is solid throughout, ensuring that long term maintenance is possible and effective.

These products are high end, top quality materials, and are designed to ensure that they do not fade significantly. Essentially, they are in many ways better than tropical hardwood. Despite its formula being kept as a secret, DURO’s main ingredient is Rice Husk; a by-product in the processing of rice. This husk, when blended together with virgin polymers, makes it an incredibly versatile, strong and durable material.

For More On iDecking Click Here

Does iDecking Offer The Perfect Decking Solution

An image of a completed iDecking installation

Composite Deck Material|iDecking Installation

With landscapers, architects and developers seeking new, innovative ways to maximise available space when designing rooftop terraces, particularly in densely populated areas like London, a new innovation was needed. 

Making the most of your outdoor space

The installation of a rooftop terrace offers the perfect way to make the most of your outdoor space and iDecking offers one of the quickest and easiest ways to make every square foot count during a decking installation.

Extensive research and development

Created on a foundation of research and development with some of the world’s most important architects, designers and qualified deck builders, iDecking offers the perfect way to alleviate many of the main issues associated with traditional deck building techniques and materials by realising a true revolution in the decking field.

Informed comments

ER Group are a well established London based Roofing & Renovation Contractor who have been helping keep homes and buildings warm and dry for the last decade. Having recently completed an installation using iDecking materials, they are ideally positioned to provide informed comment on just how effective this decking system is.

To view the ER Group article, ‘iDecking – The Perfect Deck Solution? ‘, please click here.

For more information on iDecking, please visit the dedicated area of our website by clicking here.


How To Install Hardwood Timber Tiles On Roof Terraces

An image of a completed timber decking tiles installation

Tropical Hardwood tiles for suspended decking solutions on flat roofs, terraces and walkways.

Natural, Attractive Finish of Timber Decking

By using suspended Wallbarn Timber Paving Tiles, installers combine the natural, attractive finish of timber decking with the speed and ease of laying paving slabs.

Traditionally laying timber decking directly onto these deck surfaces led to additional costs of employing specialist carpenters. Laying timber joists directly onto the waterproofing membrane also risked damage over time. Wallbarn Timber Paving Tiles offer the ideal solution. The weight of the tile will hold the system in place.

Suspended System

This suspended system avoids having to fix anything onto the deck and lifts all the timber away from any standing water, avoiding the dangers of a slippery surface.

As everything is free-standing, the tiles can be taken up and replaced without disrupting the whole area, should the deck need to be inspected. Unsightly items such as drainage outlets, cables and pipes can be hidden beneath the tiles and accessed easily.

Achieving Stunning Finishes

Stunning finishes can be achieved. The tiles can be laid in a straight line pattern or in a “chessboard” style, depending on the client’s wishes. We have a range of different timber available sourced from South America, chosen for their beauty and durability including Ipe and Cumaru. We can also supply FSC® certified timber as we have FSC® Chain of Custody (please speak to your Wallbarn representative). 

For more on our range of hardwood timber decking tiles, please click here.

Informed Advice Available

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

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

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5 Of The Lesser Known Green Roof Benefits

A close up image of a green roof installation

There are several forms of green roof systems which can be installed on to your roof to allow this to happen and there are a number of green roof components.

Green roofs and living walls are a great way of providing an attractive, useful, environmentally friendly open space on an otherwise ‘lost’ flat roof or podium deck. 

Benefits not always considered by developers, including:

  1. Improving the local environment by providing wildlife habitats
  2. Improving sound and thermal insulation
  3. Reducing the amount and speed of rainwater run-off by around 50% and forming part of a SUDS design
  4. Reducing the “heat island” effect in built-up areas and helping to improve air quality and environment
  5. Protecting the structure and waterproofing systems from UV, impact and abrasion, plant and bird infestation on the membrane

The 3 main versions of green roof systems are below, click on each one to find out more details of the individual green roof components:

Modular Green Roof System

Modular green roof systems are particularly well suited for a smaller green roof & will not need to be installed by a professional installer. Modular green roof systems are very easy to assemble as they come as complete pre-grown units. They are already very robust & well established, so there is less risk of wind uplift or erosion in the crucial time period just after installation.

For more information on the M-Tray® modular green roof solution from Wallbarn, please click here.

Component Green Roof or Brown Roof

Component green roof systems are another variation & have been designed for larger, more extensive green roofs. The vegetation used in component green roof systems can be grass, sedum blankets, sedum/wildflower mixes, herbs or bio-diverse (brown roof) plants; each layer or component is supplied separately in bag or roll form and installed separately as a “dry” build-up. This allows easy access to roof areas. This system is ideal for large scale areas, unlevel or more complicated decks as it is flexible and “built into” the existing structure.

This system is designed for extensive green roofs with a substrate level of between 70mm and 200mm.

Living Walls

Offering all the advantages of green roofs in terms of added value, water attenuation and insulation. Living walls are a slightly newer variation of green roof systems. They offer all the advantages of green roofs in terms of added value, water attenuation & insulation but with the added bonus of being able to produce more natural space is often restricted areas. They are low maintenance, extremely attractive, highly visible & completely versatile.

If you would like further information regarding the modular green roof kits available from Wallbarn or would like to speak to someone directly please contact us.

How Easy Is It To Install A Green Roof?

close up of modular green roof installation

It wasn’t too long ago that the thought of growing plants on your roof may have seemed a little eccentric. However, this might sound like a crazy idea, but it presents a myriad of benefits to the modern homeowner, with increased energy efficiency being a primary advantage.

Typically, a roof is designed with a slope and a point. This is intended to keep water off of the roof. The water rolls along the slopes, into the gutters, and down the drains. However, a green roof is slightly different in construction and function with the water gathered from rainfall instead designed to help fuel the wellbeing of the green roof.

How Easy Is It To Construct Garden Roof Systems?

Throwing grass seeds on a flat roof doesn’t make it a full-fledged green roof. However, the good news is that with the introduction of the new improved M-Tray® modular green roofing system to the UK market, installation is easier than ever before.

This pre-grown sedum green roof product is supplied in easy-to-handle plastic tray units.

A fully established, mature modular garden roof system can be installed quickly and easily on difficult-to-access roofs by hand without the mess and disruption associated with traditional extensive green roof systems.

Offering Energy Efficient Qualities

Whilst there can be little doubt that the installation of a modular garden roof system can greatly improve the aesthetics of a standard roof, the benefits do not stop there as it green roofs actually offer a variety of benefits including:

  • Increased Roof Lifespan
  • Energy Reduction
  • Reduced Urban Heat Island Effect (UHIE)
  • Increasing Biodiversity and Wildlife
  • Improved Air and Water Quality
  • Reduced Sound Transfer

Green Roofing Units

This trademarked design incorporates strong tray units measuring 500 x 500 x 100mm, made from an injection moulded recycled polypropylene. The frame itself is 2mm thick throughout and is designed to tolerate significantly more than the 15-20kg saturated weight produced when the units are fully loaded with substrate and sedum plants.

The M-Tray® modules are delivered to site on shrink-wrapped pallets. Because these are live products, it is essential that they are unpacked as soon as possible and given access to light and water. The plants will suffer if they are left palletised longer than 24 hours after delivery.

For more information on the M-Tray® modular green roof solution from Wallbarn, please click here.