Roll-out Green Roof Systems: The Future of Sustainable Urban Living

As the world continues to urbanise, the necessity for sustainable and eco-friendly solutions in the construction industry becomes ever more pressing. One such solution is the roll-out green roof system, a simple, low maintenance, and highly effective method of greening a roof deck and bringing a touch of nature to built-up areas. With companies like Wallbarn leading the charge, these innovative systems are not only transforming urban landscapes but are also delivering a multitude of environmental and economic benefits.

What Is A Roll-out Green Roof System?

A roll-out green roof system is a type of extensive green roof that offers an effective way of transforming concrete rooftops into flourishing, eco-friendly spaces. Unlike traditional or intensive green roofs, which can support a wide variety of plants and require regular maintenance, roll-out green roofs predominantly utilise low-growing, drought-tolerant plants, such as sedum, making them more manageable and suitable for a broader range of buildings.

The roll-out system involves laying out each element separately, layer by layer. This simple yet ingenious design facilitates quick and easy installation, making it an excellent choice for both new constructions and existing buildings looking to go green.

Why Choose Wallbarn’s Roll-out Green Roof System?

When it comes to roll-out green roof systems, Wallbarn is a name that stands out. With a stellar reputation in the industry and a commitment to delivering superior quality products, Wallbarn’s system offers numerous advantages:

1. High-quality materials: Wallbarn’s roll-out green roof system utilises top-notch materials, ensuring longevity and durability. This includes two layers of fleece, a Protecto Drain system, and an extensive substrate to support the sedum blanket.

2. Easy installation: The system comes with all necessary components, including aluminium edging bars and fertiliser, making the installation process straightforward, even for those with limited experience.

3. Customisable: Wallbarn’s roll-out green roof system can be tailored to fit different roof sizes and shapes, ensuring optimal coverage and aesthetic appeal.

4. Low maintenance: The sedum plants used in Wallbarn’s system are easy to manage and do not require regular watering, making the system an ideal choice for areas that are difficult to access and maintain.

Key Components of Wallbarn’s Roll-out Green Roof System

The Wallbarn roll-out green roof system comprises several key components, each playing a crucial role in the overall functioning and longevity of the system. These include:

1. Fleece

The system utilises two layers of fleece, which serve as a buffer and offer added protection to the underlying roof membrane. The fleece also aids in water retention, ensuring that the sedum plants have access to adequate moisture.

2. Protecto Drain System

This is a crucial component of the system that effectively handles rainwater, preventing damage to the roof structure and saturation of the plant roots.

3. Substrate

The substrate, or growing medium, supports the growth of the sedum plants. Wallbarn’s system uses a specially designed substrate that is lightweight yet nutrient-rich, providing an ideal environment for the plants to thrive.

4. Sedum Blanket

The sedum blanket is the crowning glory of the system. Supplied with at least 85% coverage, the blanket offers a mix of different sedum species, ensuring a variety of textures, colours, and flowering periods, and delivering consistent, year-round vegetation coverage.

5. Aluminium Edging Bars

These bars provide a neat finish to the system, creating a clean edge around the periphery of the roof.

6. Fertiliser

The system includes a specially formulated fertiliser, which helps to nourish the sedum plants and promote healthy, vibrant growth.

The Installation Process

The installation of Wallbarn’s roll-out green roof system is a straightforward process that involves the following steps:

1. Roof Preparation

The first stage involves cleaning the roof and checking the integrity of the waterproofing membrane. It’s important to ensure that the roof is free from sharp objects that could damage the membrane.

2. Fleece Installation

Next, the two layers of fleece are rolled out over the roof, providing a protective layer over the waterproofing membrane.

3. Drainage System Installation

The Protecto Drain system is then installed. This system ensures efficient drainage of excess water, preventing damage to the roof structure and the plants.

4. Substrate Application

Following the drainage system, the substrate is applied. This provides a nutrient-rich growing medium for the sedum plants.

5. Sedum Blanket Roll-out

The sedum blanket is then gently rolled out over the substrate. The blanket is designed to provide excellent coverage and a mix of different sedum species for aesthetic appeal.

6. Edging and Final Touches

Finally, the aluminium edging bars are installed, and the system is given a thorough watering to ensure the sedum plants are well hydrated.

The Benefits of Wallbarn’s Roll-out Green Roof System

Wallbarn’s roll-out green roof system offers a myriad of benefits that make it a worthwhile investment for any building owner.

1. Environmental Benefits

Green roofs are renowned for their environmental benefits, and Wallbarn’s system is no exception. The sedum plants help to improve air quality by absorbing pollutants, and the system contributes to urban heat island mitigation by providing a cooling effect on the surrounding area.

2. Aesthetic Appeal

With its mix of different sedum species, Wallbarn’s system adds a touch of natural beauty to the urban landscape, transforming dull, grey rooftops into vibrant, green spaces.

3. Energy Savings

Green roofs provide excellent insulation, helping to reduce the amount of energy needed for heating and cooling, thereby reducing energy costs.

4. Extended Roof Lifespan

By protecting the underlying roof membrane from UV radiation and weathering, Wallbarn’s system can help to extend the lifespan of the roof.

5. Biodiversity

The system contributes to urban biodiversity by providing a habitat for a variety of insects and birds.

In conclusion, Wallbarn’s roll-out green roof system offers a simple, cost-effective, and sustainable solution for transforming urban rooftops. With its easy installation, low maintenance, and numerous benefits, it’s no wonder that this system is fast becoming the go-to choice for forward-thinking architects, contractors, and building owners.

As we move towards a more sustainable future, green roof systems like Wallbarn’s will undoubtedly play a vital role in creating healthier, more livable urban environments. By investing in a roll-out green roof system, you’re not just improving your building – you’re contributing to the wellbeing of your community and the planet as a whole.