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Call 020 8916 2222Green roofs, also known as living roofs or vegetated roofs, are gaining popularity among architects, builders, and homeowners alike. This surge in interest can be attributed to the multitude of benefits that green roofs offer. In this article, we will delve into the world of green roofs, focusing specifically on Wallbarn’s M-Tray® Modular System, a premium product that is revolutionising the green roof industry.
1. Introduction to Green Roofs
Green roofs are essentially roof surfaces that are partially or completely covered with vegetation and a growing medium, installed over a waterproofing membrane. They are often integrated with additional layers such as root barriers and drainage and irrigation systems.
1.1 What is a Green Roof?
A green roof refers to a roof of a building that is partially or wholly covered with vegetation and a growing medium planted over a waterproofing membrane. There are two types of green roofs: intensive and extensive. Intensive green roofs are thicker and can support a wider variety of plants, but require more maintenance. Extensive green roofs, on the other hand, are thinner and more lightweight, supporting a more limited range of plants, but requiring less maintenance.
1.2 The Rise of Modular Green Roofs
A modular green roof is a type of green roof that is pre-grown and assembled in modules, which can be easily installed and removed. This method of green roof construction offers numerous advantages, including speed of installation and ease of access, making it an attractive choice for many.
2. The M-Tray®: A Game-Changer in Green Roof Technology
The M-Tray® by Wallbarn is a modular green roof system that is at the forefront of green roof technology. Designed and manufactured in the UK, the M-Tray® is a fourth-generation system that ensures the highest quality modular green roof available on the market.
2.1 What is the M-Tray®?
The M-Tray® is a modular green roof system designed and manufactured by Wallbarn. Each M-Tray® measures 500mm x 500mm x 100mm deep and can be easily clicked together to form a seamless, verdant roof.
2.2 How is the M-Tray® Constructed?
The M-Tray® is made up of a unique mix of 11 types of Sedum species, a type of succulent plant known for its hardiness and low maintenance needs. The option of a Wildflower/Sedum mix is also available upon request.
3. The Advantages of the M-Tray®
The M-Tray® modular system offers a multitude of benefits over traditional green roof systems. These advantages make it a popular choice among architects, builders, and homeowners.
3.1 Speed and Ease of Installation
The M-Tray® offers a rapid and straightforward installation process. As the modules are pre-grown and simply click together, they offer the instant gratification of a lush, green roof with minimal mess and disruption.
3.2 Accessibility and Flexibility
The M-Tray® modules can be easily removed and replaced, providing easy access to the roof deck for maintenance or repair. This flexibility and convenience make the M-Tray® a future-proofed green roof solution.
3.3 Aesthetics and Immediate Results
Given that the M-Tray® modules are pre-grown at Wallbarn’s farm, they arrive with a minimum of 90% vegetative cover, offering immediate, pleasing visual results.
4. The Cost of the M-Tray®
The cost of the M-Tray® modules depends on the quantity and type of vegetation chosen. Each M-Tray® costs approximately £22, and four trays are required per square meter, bringing the cost to £88 per square meter. Additional costs may include transportation and the purchase of additional materials such as a geotextile fleece and riverstone pebbles.
5. Installation of the M-Tray®
The installation process of the M-Tray® is straightforward and can be completed in a few simple steps.
5.1 Pre-Installation Preparations
Before the delivery of the M-Tray® modules, it is crucial to ensure that the roof area is ready for installation. This involves making sure that the area is level and free of debris. A crane and forklift may be needed to transfer the pallets onto the roof.
5.2 Unpacking the M-Tray® Modules
Upon delivery, the M-Tray® modules need to be unpacked from the pallet within 24 hours.
5.3 Laying the M-Tray® Modules
The M-Tray® modules can be easily clicked together to form a seamless green roof. Each module weighs approximately 100kg/m² when saturated, so it is recommended to consult with an engineer to advise on loadings.
5.4 Post-Installation Maintenance
After installation, the sedum plants are very hardy and can tolerate extreme conditions. However, occasional watering during extreme conditions and the removal of any dead leaves and vegetation is recommended. The application of a slow-release fertiliser is also advisable at certain times of the year.
6. The Future of Green Roofs
With the numerous environmental, aesthetic, and practical benefits that green roofs offer, it is clear that they are more than just a passing trend. As green roof technology continues to develop and improve, products like the M-Tray® will continue to revolutionise the way we think about and utilise our roof spaces.
6.1 Green Roofs: A Sustainable Future
Green roofs are not just about aesthetics; they are a practical solution to many of the sustainability challenges that urban environments face today. From improving air quality to reducing the heat island effect, green roofs are a forward-thinking, sustainable solution for our urban landscapes.
6.2 The Role of the M-Tray® in the Future of Green Roofs
The M-Tray® is a prime example of the innovative developments happening in the green roof industry. With its ease of installation, flexibility, and high-quality construction, the M-Tray® will undoubtedly play a significant role in the future of green roofs.
In conclusion, green roofs are a practical and aesthetically pleasing solution for urban landscapes. With products like the M-Tray®, the installation and maintenance of green roofs have never been easier, making them an accessible and attractive option for both commercial and residential buildings.
